PV Ball Valve Instruction Manual

Instruction Manual Form 5457 July 1998

Design PV

Design PV Ball Valve Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Introduction Scope of Manual This manual includes installation, maintenance and parts ordering information for the Design PV ball valves with ANSI Class 3000 and 4500 ratings. Refer to separate manuals for information concerning the actuator and other accessories used with this valve.

W7101 / IL

Only personnel qualified through training or experience should install, operate and maintain a Design PV valve. If you have any questions about this manual, contact your Fisher Controls sales office or sales representative before proceeding.

Description W147 / IL

The Design PV Ball Valves are ANSI Class 3000 and 4500 reduced bore valves with a hardened metal seat.

The Design PV are designed as on/off isolation valve for steam condensate applications in the power industry.

Figure 1. Design PV Ball Valve

Installation

Personal injury or property damage caused by sudden release of pressure can result if the valve assembly is

installed where service conditions could exceed either the valve body rating or the flange joint rating. Use pressure-relieving or pressure-limiting devices to prevent the service conditions from exceeding these limits.

D102574X012

WARNING

Design PV Table 1. Specifications

Valve Sizes, Ratings, and End Connections(1, 2) Screwed or Socket Welding: ANSI Class 3000 and 4500: 3/4 through 2-inch consistent with ASME/ ANSI B16.11 Operative Pressure/Temperature Limits(1) Consistent with ASME 16.34 for applicable ANSI Class 3000 or 4500. Max. operating temperature for F22 valves is 1100_F (593_C). Max. operating temperature for A105 valves is 800_F (593_C).

Shutoff Classifications Per MSS SP.61 Bore Diameter Inches Class 3000 3/4 to 1-1/2 inch: 0.67 Bore Class 3000 1-1/2 to 2-inch: 1.05 Bore Class 4500 3/4 to 1-1/2 inch: 0.67 Bore Class 4500 1-1/2 to 2-inch: 0.90 Bore Flow Direction Unidirectional, forward flow Bidirectional flow optional Flow Coefficients Maximum Cv for both Classes is 3/4, 1- and 1-1/2 inch: 23 2-inch: 51

Breakout Torque At full ANSI Rating Pressure Drop Class 3000 0.67 Inch Bore: 1,113 inSlb (126 NSm) 1.05 Inch Bore: 3,022 inSlb (341 NSm) Class 4500 0.67 Inch Bore: 3,021 inSlb (341 NSm) 0.90 Inch Bore: 4,491 inSlb (507 NSm) Construction Materials Body:J Forged F 22 chrome moly steel or J Forged A105 carbon steel Trim: Chrome Carbide coated ball and seats Class 3000: A-276 431 SST Class 4500: Inconel 718 Packing: Flexible Graphite, Live Loaded Handlever: Carbon Steel G1018 Mounting Bracket: A36 Carbon Steel Approximate Shipping Weights lb (kg) 3/4-Inch: 1-Inch: 1-1/2 Inch: 2-Inch:

Class 3000 17.5 (7.9) 17.5 (7.9) 17.5 (7.9) 34 (15.4)

Class 4500 20 (9.1) 20 (9.1) 20 (9.1) 37 (16.8)

Available Actuators J Handlever, J Pneumatic, or J Declutchable Manual, J Hydraulic, or J Electric

1. The pressure or temperature limits in this bulletin and any applicable standard limitations should not be exceeded.

2. For additional information on other available sizes, please consult Copeland Industries.

CAUTION The valve configuration and construction materials are selected to meet particular pressure, temperature, pressure drop, and controlled fluid conditions.

Because some body/trim material combinations are limited in their pressure drop and temperature range capabilities, do not apply any other conditions to the valve without first contacting your Fisher Controls sales office or sales representative.

1. Inspect the valve to be certain that it is free of foreign material.

2. The valve is normally shipped as part of a control valve assembly, with the actuator mounted on the valve.

If the actuator has been removed for any reason, mount the actuator, and adjust actuator travel before inserting the valve into the line. This is necessary due

2

to the measurements that must be made during the actuator adjustment process. Refer to the appropriate instruction manual for mounting and adjusting instructions before proceeding.

3. Be certain that adjacent pipelines are free of any foreign material, such as pipe scale or welding slag, that could damage the valve body seating surfaces.

4. Forward flow is the standard direction. Standard flow direction is also indicated by the flow direction marked on the valve.

WARNING Personal injury could result from packing leakage. Valve packing was tightened prior to shipment; however, some readjustment will be required to prevent leakage at the specific conditions.

Design PV

WHEN WELDING HERE

WHEN WELDING HERE

PUT GROUND STRAP HERE

PUT GROUND STRAP HERE

A7148 / IL

Make sure the thrust bearing is up tight against the guide bearing; the guide bearing is an integral part of the mounting bracket. When installing the actuator verify by measurement or observation of the stem length at the mounting bracket that the valve stem is not pushed into the valve body.

The dot punched on the end of the stem will be facing downstream when the ball is in the closed position.

Make sure the stem is not rotated 180 causing unmatched ball and seat surfaces.

Figure 2. Welding Safety View

5. Rotate the ball to open and close the valve. Take care to keep the ball from rotating if the actuator is removed, as this could undo the orientation of the actuator stops. Actuator stops were set at the factory. If you need to reset the actuator stops, please refer to the appropriate actuator instruction manual.

Welding

WARNING

Avoid personal injury and property damage from sudden release of process pressure. Before removing the valve from the pipeline:

The circumference of the welded joint should be welded as evenly as possible to minimize distortion.

Post weld heat treatment of socket weld end valves should be localized and every precaution taken to keep intense heat away from the main portion of the valve. Cool between passes if allowed by the weld procedure.

Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.

Both forged F22 and forged A105 valves, like the Design PV, often require a post-weld heat treatment. Refer to ASME IX or ANSI B31.1 and ANSI B31.3 for Pre- and Post-Heat Treatment Requirements for these materials. See figure 2 for grounding strap safety during welding.

Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure on both sides of the valve.

Drain the process media from both sides of the valve.

Inspect valve alignment and actuator orientation.

Then, cycle the valve a few times.

Vent the power actuator loading pressure and relieve any spring precompression.

Actuator Mounting The Design PV valve may be shipped from the factory with a handlever, pneumatic actuator, a declutchable manual actuator, or alone. If it was shipped with a handlever or actuator, no assembly should be required. If you will be mounting a handlever or actuator to the valve, use the mounting bracket attached to the valve. Follow the steps in the appropriate handlever or actuator instruction manual.

Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.

If the shaft is broken, pressure can force a portion of the broken shaft out of the valve as the actuator is being disassembled or as the packing flange or follower is being removed, resulting in property damage or personal injury.

3

Design PV Parts Reference Key

Description

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Valve Body Gland Nut Ball Seat Spring Stem Thrust Bearing Packing Assembly Packing Follower Push Ring Reducer Mounting Bracket Guide Bearing Packing Springs Load Pin Load Pin, Thrust Bearing Socket Head Cap Screw Hand Lever, Optional Shear Pin

A7149 / IL

Figure 3. Typical PV Valve Assembly

Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the property of their respective owners.

Fisher Controls International, Inc. 1998; All Rights Reserved

For information, contact Fisher Controls: Marshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 4 Printed in U.S.A.