399A- 6365 Pilot Instruction Manual

Types 399A-6365 & 399A-6358

Fisher Controls

Instruction Manual

Type 399A Pilot-Operated Pressure Relief Valve or Backpressure Regulator R

September 1992

Form 5322

INTRODUCTION Scope of Manual This instruction manual provides installation, maintenance, and parts ordering information for the Easy Joe Type 399A-6365 relief valve or Type 399A-6358 backpressure regulator. Any other accessories used with this relief valve or backpressure regulator are covered in separate manuals.

Product Description In the Type 399A pilot-operated pressure relief valve(1) (figure 1) or backpressure regulator, the fabric-reinforced diaphragm moves in response to the pilot loading pressure to control upstream pressure. Shutoff is achieved by applying full inlet pressure to the loading chamber to close the diaphragm against the slotted cage. Pilot bleed exhausts to atmosphere, or it may be piped to the downstream system.

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Figure 1. Type 399A Easy JoeTM Relief Valve with Type 6365 Pilot

Installation

WARNING

Specifications for the Type 399A relief valve or backpressure regulator are found in tables 1 through 4. The control spring range for an individual pilot as it comes from the factory appears on the pilot spring case. The restriction diameter (except for a Type 6358 pilot which has a plugged restriction) is indicated by a letter stamped on the bottom of the pilot body next to the tapped side outlet, and these letters are explained in the parts list.

Personal injury, equipment damage, or leakage due to escaping gas or bursting of pressure containing parts may result if the relief valve or backpressure regulator is installed where its capabilities can be exceeded or where conditions exceed any ratings of the adjacent piping or piping connections. To avoid this, install a Type 399A relief valve or backpressure regulator where:

Other information for an individual main valve appears on the nameplate. Additionally, Type 399A diaphragm and cage markings are explained in figure 2.

D Service conditions are within unit capabilities (including those given in tables 1, 2, and 3), and

1 .Pilot operated pressure relief valve defined in ANSI standard B95.1 1972 Easy Joe is a mark owned by Fisher Controls International, Inc. eFisher Controls International, Inc. 1992; All Rights Reserved

D10184 X012

Specifications

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Types 399A-6365 & 399A-6358 Table 1. Specifications Type 399A Main Valve Body Sizes, End Connection Styles, and Ratings(1) See table 2 Maximum Relief (Inlet) Pressures(1) See table 2 Minimum Relief Set Pressure 20 psig (1.4 bar), except 40 psig (2.8 bar) with 1-inch main valve body Set Pressure Ranges (Type 6365 or 6358 Pilot) See table 3 Main Valve Flow Direction Up through cage port and out through cage slots

Main Valve Flow Characteristic Linear Material Temperature Capabilities(1) See table 4 Pressure Registration External through upstream control line Upstream Control Line Connection 1/4-inch NPT female in pilot body Pilot Spring Case Vent Connection 1/4-inch NPT female tapping Shipping Weights (Including Pilot) See table 5

1. The pressure/temperature limits in this manual, and any applicable code or standard limitations, must not be exceeded.

D Service conditions are within applicable codes, regulations, or standards.

Additionally, physical damage to the relief valve or backpressure regulator could break the pilot off the main valve, causing personal injury and property damage due to escaping gas. To avoid such injury or damage, install the unit in a safe location.

1. Only personnel qualified through training and experience should install, operate, and maintain a relief valve or backpressure regulator. Before installation, make sure that there is no damage to, or debris in, the main valve body or pilot. Also make sure that all tubing and piping are clean and unobstructed.

CAUTION

2

Be sure to follow the pressure rating of whichever has the lower rated material the bonnet or the body. For example, if an iron bonnet is used with a steel body, the pressure rating of the iron bonnet must be followed because it has a lower pressure rating than does the steel body.

2. A Type 399A relief valve or backpressure regulator may be installed in any orientation, as long as flow through it matches the direction of the arrow on the main valve body.

3. The standard pilot mounting position is as shown in figure 1. Other mounting positions are available by rotating the bonnet (key 2, figure 19) or the pilot (figure 21).

When installing Type 399A trim in an existing E Series body, damage can result if flow is not in the correct direction. Look at the body web to confirm that flow is in the correct direction up through the cage port and out through the cage slots. Change the existing flow arrow if necessary.

4. An upstream control line is required and must be installed--as shown in the appropriate figure 3 drawing--into the 1/4-inch NPT connection D in the pilot body assembly (figure 20). A filter may be installed upstream of the pilot to provide clean operating gas. Inspect and clean this filter regularly to make sure it is not plugged, which can prevent proper pilot operation. Do not make the upstream pipeline connection in a turbulent area such as near a nipple, swage, or elbow.

Type 399A trim parts for customer assembly in an existing E Series body have not been pressure tested at the factory. After assembly, check for shutoff and leakage to atmosphere.

5. Apply a good grade of pipe compound to the male pipeline threads for a screwed body and use suitable line gaskets for a flanged body. Use approved piping procedures when installing the regulator.

Type 399A-6365 & 399A-6358 Table 2. Type 399A Body Sizes, End Connection Styles, and Maximum Pressures MAIN VALVE BODY SIZE, INCHES

MAIN VALVE BODY MATERIAL

Cast iron

WCB Steel

MAXIMUM RELIEF (INLET) PRESSURE END CONNECTION STYLE(1)

Type 6358 Pilot, or Type 6365 Pilot with 20 to 125 Psig (1.4 to 8.6 Bar) Set Pressure Ranges

Type 6365 Pilot with 85 to 300 Psig (5.9 to 21 Bar) Set Pressure Ranges

1, 2

NPT screwed

150

360

1, 2, 3, 4,, 6

Class 125B FF Class 250B RF

150 150

200 360

1, 2

NPT screwed

150

360

1, 2, 3, 4, 6, 4 x 2, 6 x 4, 8 x 4, 12 x 6, 8x 6

Class 150 RF Class 300 RF Class 600 RF

150 150 150

285 360 360

1. Ratings and end connections for other than ANSI standards can usually be provided; consult the Fisher sales office or sales representative.

Table 3. Set Pressure Ranges for Relief or Backpressure Pilot SET PRESSURE RANGE (1)

PILOT TYPE NUMBER

PILOT CONTROL SPRING DATA

Psig 6358 Without diaphragm limiter 6365 With diaphragm limiter

Bar

Color Code

Part Number

20 to 125

1.4 to 8.6

Red

1K7485 27202

20 to 40 35 to 125 85 to 200

1.4 to 2.8 2.4 to 8.6 5.9 to 14

Yellow Red Blue

1E3925 27022 1K7485 27202 1L3461 27142

175 to 220 200 to 300

12 to 15 14 to 21

Blue Green

1L3461 27142 15A9258 X012

1. Do not adjust the control spring to a set pressure higher than the maximum pressure for the end connection style picked from talbe 2.

Table 4. Type 399A Diaphragm Material Selections Standard selection for pressure reduction

Cold temperatures or relief

Wide-open or on/off

Material Designation

E55

E54

H3

E66

Elastomer Type

Nitrile

Nitrile

Epichloro hydrin

Fluorocarbon

_F

0 to 150

-20 to 150

10 to 150

40 to 250

_C

-18 to 66

-29 to 66

-12 to 66

4 to 121

Psig

1050

400

750

750

Bar

72

28

52

52

Psid

750

400

750

400

Bar

52

28

52

28

Natural Gas With: Up to 3% Aromatic Hydrocarbon Content

Excellent

Good

Excellent

Excellent

3-15% Aromatic Hydrocarbon Content

Fair

Poor

Good

Excellent

15-50% Aromatic Hydrocarbon Content

NR

NR

Poor

Excellent

Up to 3% H2S (hydrogen sulfide or sour gas)

Fair

Fair

Fair

Good

Up to 3% Ketone

Fair

Fair

Fair

Fair

Up to 10% Alcohol

Good

Good

good

Fair

10-50% Alcohol

Fair

Fair

Fair

NR

Up to 3% Synthetic Lube

Fair

Fair

Fair

Good

3-50% Synthetic Lube

Not Recommended

Not Recommended

Not Recommended

Consult Factory

Up to 100% Petroleum Based Lube

Good

Good

Good

Good

Air or Nitrogen

Good

Good

Good

Good

Typical Applications

Temperature Range Maximum Inlet Pressure Maximum Pressure Drop

High temperature or natural gas having high aromatic hydrocarbon content

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Types 399A-6365 & 399A-6358 Table 5. Shipping Weights (Including Pilot) MAIN VALVE BODY SIZE, INCHES 1 2 3 4 6 4x2 6x4 8x4

U.S. UNITS, POUNDS Cast Iron Main Valve Body

METRIC UNITS, KILOGRAMS

WCB Steel Main Valve Body

NPT Screwed

Class 125B FF

Class 250B RF

NPT Screwed, SW, or BW

Class Class Class 150 300 600 RF RF RF

21 50 -------

20 48 89 142 205

27 57 106 157 225

20 49 103 141 200

22 52 107 147 210

26 56 110 161 235

30 63 123 194 350

141 280 461

155 292 515

190 394 600

Cast Iron Main Valve Body

WCB Steel Main Valve Body

NPT Screwed

Class 125B FF

Class 250B RF

NPT Screwed, SW, or BW

Class 150 RF

Class 300 RF

Class 600 RF

10 23 -------

9 22 40 64 94

12 26 48 71 103

9 22 47 64 91

10 24 49 67 96

12 25 50 73 107

14 29 56 88 160

64 127 209

70 132 234

86 179 272

---

135 270 390

---

61 122 177

8x6

---

600

571

625

680

---

272

260

284

308

12 x 6

---

1160

994

1102

1590

---

526

451

500

721

---

---

WARNING When used in relief valve service, a Type 399A main valve and pilot both exhaust gas.

In hazardous or flammable gas service, personal injury, death, or property damage may occur due to fire or explosion of vented gas that has accumulated. To prevent such injury or damage, provide piping or tubing to vent the gas to a safe location. The exhaust piping must be designed and installed to guard against excessive flow restriction.

This piping must be protected against condensation or anything else that could clog it.

For safety during shutdown, vent valves are required immediately upstream and downstream of the main valve on a backpressure or bypass installation.

6. If system operation is necessary during maintenance, install isolating and vent valves as needed.

7. If installing any pilot piping, keep the following conditions in mind: D On relief service with a Type 6365 pilot, the pilot typically exhausts directly to the atmosphere. However, the pilot exhaust can be connected directly to the main valve exhaust pipe if the connection is designed to prevent any significant backpressure during full-flow conditions.

D On backpressure service with a Type 6358 pilot, the pilot minimizes bleed and typically exhausts to the atmosphere.

4

20B4375-B A3586-2

Figure 2. Type 399A Diaphragm Markings

If it remains in the pilot body assembly (key 1, figure 21), the pressed-in vent assembly (key 44, figure 20) in pilot exhaust connection A (figure 20) must be pointed down if possible or otherwise protected. If the exhaust is to be piped to the main valve exhaust or remotely vented, remove the vent assembly and install obstruction-free tubing or piping into the 1/4-inch NPT pilot exhaust connection. Provide protection on a remote vent by installing a screened vent cap, Y602 Series, into the remote end of the vent pipe.

The pilot spring case vent must be kept open to atmospheric pressure. Protect this vent from icing, moisture, or other blockage as required. The vent orientation may be changed by twisting the vent assembly (key 16, figure 21) in the spring case. To remotely vent a spring case, remove this vent assembly and install obstruction-free tubing or piping into the 1/4-inch NPT vent tapping. Provide protection on a remote vent by installing a screened vent cap, Y602 Series, into the remote end of the vent pipe.

Type 399A-6365 & 399A-6358

30B4384-C 30B8289-A

30B4384-C 30B8288-A

B2019-1*

Figure 3. Typical Installations

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Types 399A-6365 & 399A-6358 Startup and Shutdown CAUTION STARTUP—If pressure is introduced first to the main valve before the pilot, the main valve may go wide open and subject the downstream system to full inlet pressure.

Note The maximum inlet pressure for a specific construction is given in table 2. Use a pressure gauge to monitor inlet pressure during startup.

Relief Installation with Pressure Control at Relief Valve Inlet (Figure 3A) Startup 1. Close vent valve B. 2. Slowly open block valve A. 3. Adjust the pilot as needed.

Backpressure Installation (Figure 3C) Startup 1. Close vent valves C and D. 2. Slowly open block valve A first and then blockvalve B. 3. Adjust the pilot as needed.

Shutdown 1. Close block valve A first and then block valve B. 2. Slowly open vent valve D first and then vent valve C.

Pilot Adjustment If set pressure adjustment is necessary, monitor relief (inlet) pressure with a gauge during the adjustment procedure.

Remove the pilot closing cap (key 12, figure 21) and loosen the locknut (key 11, figure 21). Turn the adjusting screw (key 10, figure 21) into the spring case to increase the set pressure. Turn the adjusting screw out of the spring case to decrease the set pressure. When adjustment is completed, tighten the locknut to lock the adjusting screw in position and replace the pilot closing cap.

Shutdown 1. Close block valve A. 2. Slowly open vent valve B.

Relief Installation with Pressure Control at Main Line (Figure 3B) Startup 1. Close vent valves B and D. 2. Slowly open hand valve C. 3. Slowly open hand valve A. 4. Adjust the pilot as needed.

Shutdown 1. Close block valve A and hand valve C. 2. Slowly open vent valves B and D.

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Principle of Operation Relief Valve With Type 6365 Pilot As long as inlet pressure remains below the set pressure, the pilot control spring keeps the pilot valve plug closed (figure 4). Inlet pressure passes through the restriction and then registers on top of the Type 399A diaphragm to keep the diaphragm tightly shut off.

When inlet pressure rises above the set pressure, pressure on the pilot diaphragm overcomes the control spring and opens the pilot valve plug. The pilot then exhausts loading pressure from the top of the Type 399A diaphragm and lets inlet pressure unbalance open the Type 399A diaphragm from the bottom.

The pilot continuously exhausts gas to atmosphere when the inlet pressure is above the set pressure.

As inlet pressure drops below set pressure, the pilot control spring closes the pilot valve plug and the bleed to atmosphere stops. Loading pressure again builds up to close the Type 399A diaphragm.

Type 399A-6365 & 399A-6358

36A2951-C A3660

40B4389-C C0647-3*

Figure 4. Principle of Operation of Type 399A Relief Valve with Type 6365 Pilot

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Types 399A-6365 & 399A-6358 Backpressure Regulator With Type 6358 Pilot As long as inlet pressure remains below set pressure, the pilot control spring keeps the pilot valve plug closed (figure 4). Inlet pressure passes through the upper port around the upper portion of the valve plug and then through the hollow passage in that valve plug. Inlet pressure then registers on top of the Type 399A diaphragm to keep the diaphragm tightly shut off.

When inlet pressure rises above the set pressure, pressure on the pilot diaphragm overcomes the control spring to close the upper port and stroke the valve plug up to open the lower port. The pilot then exhausts loading pressure from the top of the Type 399A diaphragm and lets inlet pressure unbalance open the Type 399A diaphragm from the bottom.

While the main valve is throttling, the upper port of the pilot stays closed. The pilot exhausts only when it repositions the main valve.

As inlet pressure drops below set pressure, the pilot control spring overcomes the diaphragm force to stroke the valve plug down to close the lower port and open the upper port.

This lets loading pressure build up to close the Type 399A diaphragm.

Motion Indicator The motion indicator can be used to determine the position of the diaphragm support when inspecting the regulator, but the motion indicator cannot be used to estimate flow. The diaphragm is free to flex a small amount and allow initial flow before it contacts the diaphragm support and moves the indicator assembly. The diaphragm support moves with the diaphragm center to provide motion indication and to support the diaphragm when open. Also, the diaphragm has some additional travel available after the indicator assembly and diaphragm support have traveled fully.

Maintenance Relief valve or backpressure regulator parts are subject to normal wear and must be inspected periodically and replaced as necessary. Due to the care Fisher takes in meeting all manufacturing requirements (heat treating, dimensional tolerances, etc.), use only replacement parts manufactured or furnished by Fisher.

The frequency of inspection and replacement depends upon the severity of service conditions and upon applicable codes and government regulations. Table 6 lists various problems and possible solutions for them.

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WARNING Avoid personal injury or damage to property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting to disassemble, carefully release all pressures according to the appropriate figure 3 shutdown procedure. Use a gauge to monitor relief (inlet) pressure while releasing it.

Pressure Gauge Usage A gauge (not included) may be installed to evaluate the operation of the Type 399A relief valve or backpressure regulator. When the control and loading pressures are equal, the Type 399A diaphragm (figure 4) should be closed. As the pilot calls for the Type 399A diaphragm to open in response to increased inlet pressure, loading pressure is decreased and creates a pressure differential across the Type 399A diaphragm. Flow through the relief valve should begin when loading pressure is approximately 4 to 7 psi (0.28 to 0.48 bar) below inlet pressure.

Improper control line installation may cause a relief valve or backpressure regulator to perform poorly. The relief valve or backpressure regulator controls in response to the pressure registering at the pilot inlet.

Type 399A Main Valve Trim Parts Instructions are given for complete disassembly and assembly. Key numbers are referenced in figure 19 unless otherwise noted.

Note The main valve may remain in the pipeline during maintenance procedures unless the main valve body (key 1) is replaced or removed for repairs.

Disassembly 1. Remove the cap screws (key 3). As shown in figure 5, pry the bonnet (key 2) away from the body (key 1).

CAUTION In the following step, avoid possible damage due to the cage retainer and cage (keys 10 and 7) dropping off the bonnet.

Type 399A-6365 & 399A-6358 Table 6. Maintenance Tips Problem

Possible Solution (See Figure 4 for Part Location)

Unit does not provide tight shutoff when inlet pressure is below set pressure Main valve is wide open when inlet pressure is below set pressure Gas escapes from pilot spring case Gas escapes from motion indicator Unit does not open when inlet pressure is above set pressure Inlet pressure rises higher than expected

D D D D D

Check main valve O-rings for damage or improper installation Check cage and diaphragm surfaces for erosion or trapped debris Check pilot plug and seat for seating surface damage or debris If motion indicator is in up position, check pilot for debris If motion indicator is in down position, check main valve for debris or diaphragm damage

Replace pilot diaphragm assembly Replace indicator stem O-ring. If indicator is not desired, shut down the unit, remove and discard motion indicator, and install 3/8-inch NPT pipe plug in its place.

D Check for clogged main valve inlet strainer D Check for pilot icing or blockage D Check for main valve diaphragm damage D Check for correct main valve sizing D Check for clogged main valve inlet strainer D Check for restrictive inlet or outlet piping D Check for plugged or restricted control line

2. As shown in figure 6, remove the bonnet from the body.

The cage (key 7), cage retainer (key 10), and other trim parts normally come out with the bonnet. If they don’t, remove the cage retainer--with attached diaphragm (key 9).

Then remove the cage (key 7) using the cage removal tool (a 1/4 x 4-inch x 20 NPT hex head bolt, see figure 7).

3. As shown in figure 8, pull the cage O-ring (key 8) and inlet strainer (key 23) or shim (key 23, if used) out of the body. Inspect the cage O-ring, inlet strainer, and body cavity.

4. To remove the cage (key 7), which fits tightly on the diaphragm (key 9), pull the cage away from the diaphragm.

W6049

Figure 5. Prying Bonnet from Body

CAUTION While pulling the cage retainer (key 10) from the bonnet (key 2) during the following step, be careful to keep the flat sheet and spiral wound bonnet gaskets (keys 5 and 6) from popping out and getting lost.

5. Check the cage retainer O-ring (key 14) and spiral wound bonnet gasket (key 6) by twisting and pulling the cage retainer (key 10) to remove it from the bonnet (key 2) as shown in figure 9.

W6050

6. As shown in figure 10, push firmly on the diaphragm (key 9) until a gap opens between the diaphragm bead and the lip of the cage retainer (key 10). Begin at the gap and peel the diaphragm from the cage retainer. Check the diaphragm for damage, and replace if necessary.

7. A functional check of the cage retainer (key 10) and diaphragm support (key 11) can be done by manually stroking

Figure 6. Removing Bonnet and Attached Parts

the diaphragm support. If disassembly is needed, separate the cage retainer bolt (key 13) and the diaphragm support (key 11) as shown in figure 11.

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Types 399A-6365 & 399A-6358

W6015

Figure 7. Removing Cage with Cage Removal Tool

W4675-1

Figure 10. Removing Diaphragm from Cage Retainer

W6051 W5651

Figure 8. Removing Cage O-Ring and Inlet Screen

Figure 11. Separating Cage Retainer Bolt from Diaphragm Support

W4674-1 W6051

Figure 9. Removing Cage Retainer Assembly and Gaskets

10

Figure 12. Installing Inlet Screen and Cage O-Ring

Type 399A-6365 & 399A-6358

w4674-1

W6053*

CAGE-BODY SIDEWALL CONTACT POINT

Figure 14. Installing Gaskets and Cage Retainer Assembly

Figure 13. Installing Cage

Assembly Side-Entry (Horizontal) Trim 1. Apply Lubriplate(2) lubricant or equivalent to all O-rings and gaskets before installing them.

CAUTION The inlet strainer (key 23) or shim (key 23, if used) must be installed before the cage Oring (key 8) or damage to the latter can result.

W4615-1

Figure 15. Lubricating Outside of Diaphragm

2. As shown in figure 12, install the inlet strainer or shim (if used) and cage O-ring (keys 23 and 8) into the body (key 1).

3. As shown in figure 13, install the cage (key 7) so that its seat end rests in the bore of the body web. The cage is allowed to tilt downward from the top with its outer notched end touching the sidewall of the body.

4. Apply Lubriplate lubricant or equivalent to the inside bead of the diaphragm (key 9). With the identification side (figure 2) of the diaphragm facing the cage retainer (key 10), snap the diaphragm over the lip of the cage retainer.

5. Lubricate and install the cage retainer O-ring (key 14) if it was removed. As shown in figure 14, install the flat sheet and spiral wound bonnet gaskets (keys 5 and 6) and cage retainer assembly into the bonnet (key 2).

6. As shown in figure 15, apply additional lubricant to the outside edge of the diaphragm (key 9) to provide smooth installation into the tight-fitting cage.

7. Rotate the bonnet (key 2) for proper pilot mounting, and install the bonnet plus cage retainer into the body (key 1) as shown in figure 16.

Note The cage and diaphragm are pressed into place when the bonnet bolting is tightened.

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Types 399A-6365 & 399A-6358

w6054

Figure 16. Installing Bonnet Plus Attached Parts

8. Lubricate the cap screws (key 3) with Lubriplate lubricant or equivalent and secure the bonnet with them. Using an even crisscross pattern, tighten the cap screws to 100 foot-pounds (136 Nm) for a 1-inch body, 80 foot-pounds (110 Nm) for a 2 or 4 x 2-inch body, 130 foot-pounds (175 Nm) for a 3-inch body, 190 foot-pounds (260 Nm) for a 4, 6 x 4 or 8 x 4-inch body, or 400 foot-pounds (542 Nm) for a 6, 8 x 6 or 12 x 6-inch body.

Top-Entry (Vertical) Trim 1. Apply Lubriplate lubricant or equivalent to all O-rings and gaskets before installing them.

CAUTION The inlet strainer (key 23) or shim (key 23, if used) must be installed before the cage Oring (key 8) or damage to the latter can result.<m:0> 2. As shown in figure 12, install the inlet strainer or shim (if used), cage O-ring, and cage (keys 23, 8, and 7) into the body (key 1).

3. Lubricate and install the cage retainer O-ring (key 14) if it was removed. As shown in figure 13, install the flat sheet and spiral wound bonnet gaskets (keys 5 and 6) and cage retainer assembly into the bonnet (key 2).

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Figure 17. Installing Bonnet Plus Attached Parts

4. Apply Lubriplate lubricant or equivalent to the inside bead of the diaphragm (key 9). With the identification side (figure 2) of the diaphragm facing the cage retainer (key 10), snap the diaphragm over the lip of the cage retainer. As shown in figure 15, apply additional lubricant to the outside edge of the diaphragm (key 9) to provide smooth installation into the tight-fitting cage.

5. Rotate the bonnet (key 2) for proper pilot mounting, and install the bonnet plus cage retainer into the body (key 1) as shown in figure 17.

Note The cage and diaphragm are pressed into place when the bonnet bolting is tightened.

6. Lubricate the cap screws (key 3) with Lubriplate lubricant or equivalent and secure the bonnet with them. Using an even crisscross pattern, tighten the cap screws to 100 foot-pounds (136 Nm) for a 1-inch body, 80 foot-pounds (110 Nm) for a 2 or 4 x 2-inch body, 130 foot-pounds (175 Nm) for a 3-inch body, 190 foot-pounds (260 Nm) for a 4, 6 x 4 or 8 x 4-inch body, or 400 foot-pounds (542 Nm) for a 6, 8 x6 or 12 x 6-inch body.

Type 399A-6365 & 399A-6358 Indicator Assembly Indicator assembly key numbers are referenced in figure 19. The indicator assembly can be removed and installed without removing the bonnet (key 2) from the body (key 1).

1. Remove the indicator protector (key 22), indicator stem guide (key 19), and indicator scale (key 21).

2. Compress the indicator spring (key 16) and remove the indicator disk (key 20). Separate the indicator stem (key 15), indicator spring, and stem O-ring retainer (key 17) from the indicator stem guide (key 19).

3. Remove the indicator stem O-ring (key 18) and check it for damage.

4. Apply Lubriplate lubricant or equivalent to the indicator stem O-ring (key 18), and reassemble the indicator as shown in figure 19.

(key 20), or the hollow passage in the Type 6358 plug/stem assembly, are not damaged or plugged with moisture or debris.

5. If necessary to replace the diaphragm assembly, the plug/stem assembly, the plug/stem spring (key 14), or the Type 6358 plug/stem O-ring (key 37), remove the connector cap and connector cap gasket (keys 6 and 36) from the top of the diaphragm assembly.

Assembly 1. If they were removed, install the body plug gasket (key 13) over the body plug (key 3), and then install the body plug into the body assembly.

2. Install the plug/stem guide (key 9) if it was removed, making sure that with a Type 6358 pilot a connector cap gasket (key 36) is installed between the body and the plug/ stem guide.

5. Install the indicator assembly, indicator scale (key 21), and indicator protector (key 22) into the bonnet.

Note

Type 6358 or 6365 Pilot Key numbers are referenced in figure 21 unless otherwise noted. The pilot may remain on the pipe nipple (key 29, figure 20) during maintenance procedures unless the body assembly (key 1) is replaced or removed for repairs.

Disassembly 1. If necessary to check the outlet end of the body cavity and the seating surfaces for moisture or debris, remove the body plug (key 3) and body plug gasket (key 13) from the body assembly (key 1).

2. Remove the closing cap (key 12), loosen the locknut (key 11), and back out the adjusting screw (key 10) until compression is removed from the control spring (key 7).

In step 3, if installing a restriction of a different diameter from the one that was removed, be sure to delete the code letter originally appearing on the bottom of the pilot body and indicate the new letter.

3. Install the Type 6365 restriction or Type 6358 restriction plug (key 20) if it was removed. With a Type 6358 restriction plug, coat the threads with John Crane(3) Plastic Lead Seal sealant or equivalent before installation.

4. If replacing the Type 6358 plug/stem O-ring (key 37), sparingly apply Lubriplate lubricant or equivalent to the replacement O-ring and install the O-ring over the plug/stem assembly (key 4).

3. Remove the machine screws (key 17) and separate the spring case (key 2) from the body assembly (key 1). Remove the control spring seat (key 8), the control spring (key 7), and, if used, the diaphragm limiter (key 40).

5. If they were removed, install the plug/stem assembly and plug/stem spring (keys 4 and 14) into the diaphragm assembly (key 5). Install a replacement connector cap gasket (key 36) on the diaphragm assembly connector, and secure with the connector cap(key 6).

4. Remove the diaphragm and plug/stem assemblies (keys 5 and 4) and make sure the plug/stem guide (key 9) and the registration hole in the Type 6365 pilot restriction

6. Install the diaphragm assembly (key 5) and push down on it to see if the plug/stem assembly (key 4) smoothly. The diaphragm assembly should stroke approximately 1/16-inch (2 mm) after the valve plug contacts the port.

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Types 399A-6365 & 399A-6358 Parts Ordering

When corresponding with your Fisher sales office or sales representative about this equipment, always reference the equipment serial number or FS number that can be found on a nameplate attached to the bonnet (key 2, figure 19).

When ordering replacement parts, reference the key number of each needed part as found in the following parts list.

Separate kits containing all recommended spare parts are available for both the main valve and pilot.

Parts List Key

W4678 1

Figure 18. Pilot Trim Removal/Installation

In step 7, if installing a control spring of a different range from the one that was removed, be sure to delete the spring range originally appearing on the spring case and indicate the new spring range. A diaphragm limiter (key 40), as well as other parts given in the Type 6358 or 6365 Pilot parts list section, is required with the two highest range springs.

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2

8. Install the spring case (key 2) on the body (key 1) with the vent assembly (key 16) oriented to prevent clogging or entrance of moisture. Install the machine screws (key 17) and, using a crisscross pattern, torque them to 5 to 7 footpounds (7 to 9 Nm).

9. When all maintenance is complete, refer to the startup and adjustment section to put the relief valve or backpressure regulator back into operation and adjust the pressure setting. Tighten the locknut (key 11), replace the closing cap gasket (key 19) if necessary, and install the closing cap (key 12).

14

Part Number

Type 399A Main Valve (figures 19 and 20)

Note

7. As shown in figure 18, stack the control spring (key 7), the control spring seat (key 8), and, if used, the diaphragm limiter (key 40) onto the diaphragm assembly (key 5). Make sure that, if used, the diaphragm limiter is installed beveled side up.

Description

3

Parts Kit (included are a cage removal tool, keys 5, 6, 8, 9, 14, 18, and also includes keys 66 and 67 used with size 8 x 6 only) E55 diaphragm material, 0 to 150_F (-18 to 66_C) temperatures For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x6 or 12 x 6-inch body E54 diaphragm material, -20 to 150_F (-29 to 66_C) temperatures For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4 or 8 x 4-inch body For 6, 8 x 6 or 12 x 6-inch body Valve Body If you need a valve body as a replacement part, order by body size, serial number, and desired material.

Bonnet For 1-inch body, WCB steel For 2 or 4 x 2-inch body Cast iron (2-inch body only) WCB steel For 3-inch body Cast iron WCB steel For 4, 6 x 4, or 8 x 4-inch body Cast iron (4 inch body only) WCB steel For 6, 8 x 6, or 12 x 6-inch body WCB steel Cap Screw, pl steel For 1-inch body (4 req’d) For 2 or 4 x 2-inch body (8 req’d) For 3-inch body (8 req’d) For 4, 6 x 4, or 8 x 4-inch body (8 req’d) For 6, 8 x 6, or 12 x 6-inch body (12 req’d)

R399A X00S12 R399A X00S22 R399A X00S32 R399A X00S42 R399A X00S62 R399A X00L12 R399A X00L22 R399A X00L32 R399A X00L42 R399A X00L62

30B7997 X012 30B4342 X012 30B4342 X022 30B4349 X012 30B4349 X022 30B4356 X012 30B4356 X022 30B7996 X022 1R2811 24052 1A4533 24052 1A4541 24052 1A4402 24052 1U5131 24052

Type 399A-6365 & 399A-6358

V APPLY LUB 40B4415-G

Figure 19. Type 399A Main Valve Assembly

15

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Types 399A-6365 & 399A-6358

31b5011-c

Figure 19. Type 399A Main Valve Assembly (Continued)

Key 5*

6*

7

8*

16

Description Flat Sheet Gasket, composition For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Spiral Wound Gasket, composition/stainless steel For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body 100% Capacity Cage, heat-treated stainless Cr-Ni alloy For 1-inch body For 2-inch body For 3-inch body For 4-inch body For 6-inch body Cage O-Ring, nitrile rubber For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 12 x 6-inch body

Part Number 14A6785 X012 14A5685 X012 14A5665 X012 14A5650 X012 14A6984 X012

9* 10

11 1R2860 99282 1R3297 99282 1R3482 99282 1R3722 99282 1U5085 99282 23B0940 X012 23B0921 X012 23B0941 X012 23B0942 X012 23B0943 X012 14A5713 X012 10B4428 X012 10B4366 X012 10B4373 X012 1H8623 06992

12

13

Diaphragm See following table Cage Retainer, aluminum For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Diaphragm Support, hard-anodized aluminum For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Diaphragm Spring, steel For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Cage Retainer Bolt, stainless steel For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body

30B8000 X012 30B4339 X012 30B4346 X012 30B4353 X012 30B7894 X012 10B8002 X012 20B4337 X012 20B4344 X012 20B4351 X012 20B7851 X012 14A9672 X012 1H8933 27012 10B4400 X012 10B4378 X012 19A5976 X012 10B8005 X012 10B4357 X012 10B4364 X012 10B4371 X012 10B7854 X012

Type 399A-6365 & 399A-6358 Key 14*

15 16 17 18* 19 20 21 22

23

23

24 25 26

Description

Key

Part Number

Cage Retainer O-Ring, nitrile rubber For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Indicator Stem, stainless steel Indicator Spring, pl steel Stem O-Ring Retainer, polyethylene Indicator Stem O-Ring, nitrile rubber Indicator Stem Guide, heat-treated Stainless steel Indicator Disk, Delrin(1) Indicator Scale, acrylic plastic Indicator Protector, zn pl steel For 1, 2, 3, or 4 x 2-inch body For 4, 6, 6 x 4, 8 x 4, 8 x 6, or 12 x 6-inch body Inlet Strainer, stainless steel For 1-inch body For 2 or 4 x 2-inch body For 3-inch body For 4, 6 x 4, or 8 x 4-inch body For 6, 8 x 6, or 12 x 6-inch body Optional Shim, stainless steel For 1-inch body For 2 and 4 x 2-inch body For 3-inch body For 4, 6 x 4 and 8 x 4-inch body For 6, 8 x 6 and 12 x 6-inch body Body Size/Serial Number Nameplate Aluminum Flow Arrow, stainless steel 1-inch body only All other sizes Drive Screw, stainless steel (2 reqâ&#x20AC;&#x2122;d)

27

1V1157 06992 1K1177 06992 10A3800 X012 1D2269 06992 1K1811 06992 See following table See following table See following table See following table

29

30

See following table 10B4359 X022 See following table

34

10B4362 X012

35*

14A8180 X012 20B8004 X012 10B4409 X012 20B4367 X012 20B4374 X012 20B7853 X012

36 37 44 65

13B8061 X012 13B8062 X012 13B8063 X012 13B8064 X012 13B8065 X012

66*

--67*

1V1059 38982 1V1060 38982 1A3682 28982

Description

Part Number

Lubricant, (not furnished) Never-Seez(2) Lub 5, 1 gallon (3.8 l) can Pilot Mounting Pipe Nipple, galvanized steel For 1-inch main valve body For 2-inch main valve body For 3 or 4-inch main valve body For 6-inch main valve body Drain Plug (for use only with tapped valve body), steel (not shown) Cage Adapter, stainless steel For 4 x 2-inch body only For 6 x 4-inch body only For 8 x 4-inch body only Cage Adapter O-Ring, nitrile rubber For 4 x 2-inch body only For 6 x 4-inch body only For 8 x 4-inch body only Instruction Tag, plastic (not shown) Cable Tie, nylon (not shown) Type Y602-12 Vent Assembly, plastic Cage/Adaptor (not for 1, 2, 3, 4, or 6-inch body For 4 x 2-inch body For 6 x 4-inch body For 8 x 4-inch body For 8 x 6-inch body For 12 x 6-inch body O-Ring, For 8 x 6-inch body Nitrile Fluoroelastomer O-Ring, For 8 x 6-inch body Nitrile Fluoroelastomer

1M5239 06992 1N5842 26232 1N6240 26232 1U2644 26232 1C2100 26232 1A7715 28992 21B6296 X012 21B6297 X012 21B6197 X012 1H2917 06562 1H8620 06992 1H8620 06992 30B1000 X012 18A9401 X012 27A5516 X012 23B8060 X012 23B8070 X012 23B8070 X022 23B8139 X012 23B8139 X022 1D2692 06992 1D2692 X0022 1V3350 06562 1V3350 X0012

Key 9 Diaphragm BODY SIZE

DESCRIPTION

1-Inch

2-Inch

3-Inch

4-Inch

6-Inch

Full Coat

20B8003X022

20B4417X022

20B4368X022

20B4375X022

20B7852X022

Partial Coat

22B2810X012

22B2811X012

22B2812X012

22B2813X012

22B2814X012

Full Coat

20B8003X012

20B4417X012

20B4368X012

20B4375X012

20B7852X012

Partial Coat

22B2810X022

22B2811X022

22B2812X022

22B2813X022

22B2814X022

Fluorocarbon E66

Partial Coat

22B2810X032

22B2811X032

22B2812X032

22B2813X032

22B2814X032

Epichlorohydrin H3

Partial Coat

22B2810X042

22B2811X042

22B2812X042

22B2813X042

22B2814X042

Nitrile E55 Nitrile E54

Key 15, 16, 17, 18, 19 and 21 Motion Indicator Parts DESCRIPTION

BODY SIZE 1 and 2 Inches

3 Inches

4 and 6 Inches

Complete motion indicator assembly

10B4360 X0A2

10B4365 X0A2

10B4372 X0A2

Key 15 Key 16 Key 17 Key 18 Key 19 Key 21

10B4360 X012 10B4413 X012 10B4422 X012 1D1346 06992 20B4423 X012 10B4361 X012

10B4365 X012 10B4421 X012 10B4422 X012 1D1346 06992 20B4423 X012 10B4361 X012

10B4372 X012 10B4379 X012 10B4422 X012 1D1346 06992 20B4423 X012 10B4369 X012

*Recommended spare part.

1. Trademark of E. I. du Pont De Nemours Co. 2. Trademark of Never-Zeez Corp.

17

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Types 399A-6365 & 399A-6358

30b4385-d b2044-2

Figure 20. Pilot Mounting Details

18

Type 399A-6365 & 399A-6358 Key

Description

Part Number

Key 13* 14

Type 6358 or 6365 Pilot (figure 21)

1 2 3 4*

5* 6 7 8 9 10 11 12

Parts Kits (included are keys 4, 5, 13, 14, 19, 36, and 37) For Type 6358 pilot For Type 6365 pilot 20 to 125 psig (1.4 to 8.6 bar) spring ranges 85 to 300 psig (5.9 to 21 bar) spring ranges Body Assembly, aluminum Spring Case, aluminum Body Plug, aluminum Plug/Stem Assembly Type 6358, polyethylene Type 6365, nitrile plug w/stainless steel stem Diaphragm Assembly (includes heat-treated 416 stainless steel diaphragm plate) Connector Cap, 18-8 stainless steel Control Spring, Zn pl steel spring wire Control Spring Seat, pl steel Plug/Stem Guide, stainless steel Adjusting Screw, pl steel Locknut, Zn pl steel Closing Cap, aluminum

R6358 X00012 R6365 X00022

16 17 19 20

R6365 X00032 39A0138 X012 25A6220 X012 1B7975 09032 16A2924 X012 19A0137 X012 See following table 16A2921 X012 See following table See following table 16A2923 X012 See following table 1A9463 24122 1H2369 X0012

20 36* 37* 40 41

Description

Part Number

Body Plug Gasket, composition Plug/Stem Spring Type 6358, stainless steel Type 6365, Inconel(3) X750 Type Y602-12 Vent Assembly, plastic Machine Screw, carbon steel (6 req’d) Closing Cap Gasket, composition Restriction (for use only w/Type 6365), pl carbon steel No. 57 drill size or 0.043-inch (1.09 mm) dia (indicated by S for standard gain stamped on pilot body & red color code) No. 47 drill size or 0.078-inch (1.99 mm) dia (indicated by L for low gain stamped on pilot body & blue color code) No. 70 drill size or 0.028-inch (0.71 mm) dia (indicated by H for high gain stamped on pilot body & yellow color code) Restriction Plug (for use only w/Type 6358), pl carbon steel Connector Cap Gasket, fluoroelastomer (2 req’d for Type 6358 and 1 req’d for Type 6365) Plug/Stem O-Ring (for use only w/Type 6358), nitrile rubber Diaphragm Limiter, aluminum John Crane Plastic Lead Seal Sealant, 1 lb (0.45 kg) can (not furnished)

1C4957 04022 1E7013 37022 17A2328 X012 27A5516 X012 1H4217 28992 15A6218 X012

17A2029 X012

17A7277 X012

17A7279 X012 1V7435 28982 1U1716 X0012 16A2920 X012 See following table 1M3307 06992

Keys 5, 7, 8, 10, and 40 Pilot Control Spring Range Parts

KEY

FOR TYPE 6358 PILOT WITH 20(1) TO 125 PSIG (1.4(1) TO 8.6 BAR) CONTROL SPRING RANGE Description

Part Number

W/nitrile 15A6216 5 rubber X072 diaphragm Red 1K7485 7 color code 27202 8 1B7985 25062 10

FOR TYPE 6365 PILOT 20(1) TO (1.4(1) to

40 Psig 2.8 Bar) Control Spring Range

Description W/nitrile rubber diaphragm Yellow color code

1H3050 28982

40

35 to 125 Psig (2.4 to 8.6 Bar) Control Spring Range

Part Number

Description

W/nitrile rubber diaphragm 1E3925 Red 27022 color code 1B7985 25062 15A6216 X072

Part Number 15A6216 X072 1K7485 27202

10B3692 X012 Not used

85 to 200 Psig (5.9 to 14 Bar) Control Spring Range Description

Part Number

W/neoprene 15A6216 rubber X192 diaphragm Blue 1L3461 color code 27142 1K1558 28982 10B3691 X012

175 to 220 Psig (12 to 15 Bar) Control Spring Range Description W/neoprene rubber diaphragm Blue color code

Part Number

200 to 300 Psig (14 to 21 Bar) Control Spring Range Description

W/neoprene rubber diaphragm 1L3461 Green 27142 color code 1K1558 28982 15A6216 X192

Part Number 15A6216 X192 15A9258 X012

10B3691 X012 15A9259 X012

1. Minimum relief (inlet) pressure for 2-inch or larger Type 399A main valve; minimum relief (inlet) pressure for 1-inch Type 399A main valve is 40 psig (2.8 bar).

* Recommended spare part.

3. Trademark of International Nickel Co.

19

R

Types 399A-6365 & 399A-6358

36a2952-D

39a0175-a c0542-2

Figure 21. Pilot Assemblies

While this information is presented in good faith and believed to be accurate, Fisher Controls does not guarantee satisfactory results from reliance upon such information. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding the performance, merchantability, fitness

R

20 Printed in U.S.A.

Fisher Controls

or any other matter with respect to the products, nor as a recommendation to use any product or process in conflict with any patent. Fisher Controls reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.

For information, contact Fisher Controls: Marshalltown, Iowa 50158 USA Cernay 68700 France

Sao Paulo 05424 Brazil Singapore 0512