Issuu on Google+

Forged Steel GATE VALVE RF flange / RTJ flange / BW www.migzvalve.com

Features of Forged Steel GATE VALVE, RF / RTJ / BW Forged steel body & bonnet. Bolted Bonnet, or Welded Bonnet. Outside Screw & Yoke (OS&Y). Stem with ACME threaded. Rising stem as standard. Solid wedge. For horizontal and upward horizontal flow of fluid. Bidirectional flow. Size range: NPS 3/8” up to NPS 2”. DN10 up to DN50. Pressure rating: ASME class 150 up to 2500. Handwheel operated. Regular (Reduced) Port, or Full Port. Connection: RF flange, RTJ flange, BW ends. Option of Extended bonnet for low temp and cryogenic service. NACE service either MR-01-75 or MR-01-03. Low fugitive emissions control. Design standards: API 6D, API 602, and ASME B16.34. Tested to API 598 and ASME B16.34.

We Believe in Quality and Speedy Delivery

Page 1 of 3


Forged Steel GATE VALVE RF flange / RTJ flange / BW www.migzvalve.com

NPS 3

/8

½ ¾ 1

1¼ 1½ 2

DN 10 15 20 25 32 40 50

RP, FP CL150 Y Y Y Y Y Y Y

RP, FP CL300 Y Y Y Y Y Y Y

RP, FP CL600 Y Y Y Y Y Y Y

RP, FP CL900 Y Y Y Y Y Y Y

RP, FP CL1500 Y Y Y Y Y Y Y

RP, FP CL2500 Y Y Y Y Y Y Y

Reference Standards API 6D - Specification for Pipeline Valves. API 598 - Valve Inspection and Testing/ API 602 - Steel Gate, Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries ASME B16.5 - Pipe Flanges and Flanged Fittings. ASME B16.10 - Face-to-Face and End-to-End Dimensions of Valves. ASME B16.34 - Valves – Flanged, Threaded, and Welding End.

Class 150, 300, 600 Forged Gate Valve Bolted Bonnet as standard. Option of Welded Bonnet available. Regular Port, or Full Port. Size range: NPS 3/8” up to NPS 2”.

Class 900, 1500 Forged Gate Valve Bolted Bonnet as standard. Option of Welded Bonnet available. Regular Port, or Full Port. Size range: NPS 3/8” up to NPS 2”.

Class 2500 Forged Gate Valve Welded Bonnet as standard. Option of Bolted Bonnet available upon request. Regular Port, or Full Port. Size range: NPS 3/8” up to NPS 2”.

We Believe in Quality and Speedy Delivery

Page 2 of 3


Forged Steel GATE VALVE RF flange / RTJ flange / BW www.migzvalve.com

Overview Rising Stem, with precision ACME thread for quick operation. Stem Packing, designed for optimum control of fugitive emissions leakage to the atmosphere. The ultra-low emission leakage rate is assured by the polished finish stem sealing area, the reduced diametrical clearances and the stem straightness control. Backseat, designed to relieve back pressure on the stem packing when fully sealed. Replacing stem packing under pressure is not recommended. Stem-Gate connection, designed so that under severe applied loads (stuck gate), the stem will fall outside of the stuffing box pressure boundary. Body to Bonnet joint, designed to apply a uniform load to the gasket to assure a leak proof seal. Stellite Seat Rings, provide increased resistance to wear, abrasion and erosion of the sealing surfaces.

We Believe in Quality and Speedy Delivery

Page 3 of 3


MIGZ Forgedsteel Gate Valve, flange