API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)

Model NO.: GAH76H
Flow Direction: Bidirectional
Standard: ANSI
Application: Industrial Usage
Size: NPS 2"~40"
Pressure Rating: Class 150~1500
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Specification: ISO 9001
Origin: China(Mainland)
HS Code: 8481804090

Dual Plate Wafer Check Valve Application

The Dual Plate Wafer check valve is an energy-saving product designed and manufactured by GOOLE VALVE. It incorporates advanced foreign technology and complies with international standards. This valve is known for its excellent sealing performance, high safety, and reliability, as well as low flow resistance. It is ideal for use in various industrial applications such as petrochemical, food processing, pharmaceutical, textile, papermaking, water supply, drainage, metallurgy, energy, and light industries as a one-way check valve.

Dual Plate Wafer Check Valve Specification

Size: NPS 2"~40"
Pressure: Class 150~1500
Material: WCB, LCB, CF8, CF8M, CF3M, WC6, C5, C12
Design & Manufacturing Std.: API 594, API 6D, ASME B16.34
Face to Face Std.: API 594, API 6D
End Connection Std.: ASME B16.5, ASME B16.47
Test Standard: ISO 5208, API 6D

Dual Plate Wafer Check Valve Standard

Design and Manufacture: ANSI B16.34, API 6D
Face to Face: API 6D
Flange Dimension: 2"-24" to ANSI B16.5, 26"-36" to MSS-SP-44 or API 605 as requested.
Test and Inspection: API 6D
Shell Test: 150LB, 450 PSI, 300LB, 1125 PSI.
Seat Test: 150 LB: 315 PSI (Hydrostatic), 80 PSI (Air)
300LB: 815 PSI

Dual Plate Wafer Check Valve Features

  1. Compact design, lightweight, easy to maintain.
  2. Two torsion springs are used to ensure quick and automatic closing of the valve plates.
  3. Fast closure prevents backflow and reduces water hammer effect.
  4. Short length provides rigidity and ease of installation.
  5. Easy to install on horizontal or vertical pipelines.
  6. Tightly sealed with no leakage under pressure testing.
  7. Safe and reliable operation with strong interference resistance.
  8. Flange connection dimensions conform to GB4216-84 and GB4216.5-84 standards.
  9. Face to face dimensions follow ISO5752-82. The stem should be perpendicular to the horizontal level when mounted on a horizontal pipeline. For vertical installation, the flow direction should be downward.
API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)
Main Parts and Material.
Part name Material
Body WCB A352 LCB A217 WC6 A217 WC9 A217 C5 A217 C12 A351 CF8 A351 CF8M
Disc A351 CF8 A351CF8 A182 F11 A182 F22 A217 C5 A217 C12 A182 F304 A182 F316
Stem A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F316
Spring Stainless steel
Gasket EPDM(-46~+121°C)/Neoprene(-50~+150°C)/NBR(-35~+113°C)/Fluororubber(-23~+150°C)

Main External Dimensions.

API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)

Class 150
Size Main Dimensions Weight(kg) Cv
mm in L D D1 D2
50 2 60 51 103 56 2 48
65 2 1/2 67 65 122 73 3 128
80 3 73 80 135 88 4 150
100 4 73 102 173 108 6 394
125 5 86 127 195 132 8 830
150 6 98 152 220 160 13 900
200 8 127 203 277 210 25 1589
250 10 146 254 337 266 39 3300
300 12 181 305 407 310 54 3926
350 14 184 350 448 355 80 5418
400 16 191 400 512 405 117 8256
450 18 203 450 547 455 138 10452
500 20 219 500 604 505 163 14251
600 24 222 600 715 605

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