Forged Steel Check Valve
Forged steel check valves, with piston, ball, or swing check type in full or standard port. T-Pattern or Y-Pattern with bolts or welded body. An integral body seat is designed for a piston or ball check valve. A separate seat ring is built for a swing check valve.
BODY: The body is forged steel and designed to the basic dimensional requirements of the applicable specifications such as API 602 and ASME B16.34. The body is available in either the full or standard port design. It is also available in either T-Pattern or Y-Pattern configurations.
COVER: The cover is forged steel and designed to the basic dimensional requirements of the applicable specifications such as API 602 and ASME B16.34.
BODY-COVER JOINT: Bolted cover, pressure-sealed or welded cover.
SEAT: The body seat for the piston and ball check valves is an integral weld overlay and is part of the valve trim. The swing check valve is supplied with a separate seat ring which is pressed into the valve body and wedged into place, forming a seal with the body.
PISTON, BALL OR DISC: The piston, ball, or disc is made of forged steel and is part of the valve trim. The seating surface of the piston and ball check is of the tapered or plug type design. The seating surface of the swing check is of the flat seat design.
Size
1/2" - 2"
Pressure Rating
Class 150 - 2500
End Connections
Flanged, Welded, Threaded
Body Material
Carbon steel, stainless steel, alloy steel, duplex steel in forged type
Standard Specifications
| Design | ASME B16.34 - BS 5352 | Test | API 598 |
| Socket Weld | ASME B16.11 | Screw End | ASME B1.20.1 |
| Butt Weld Ends | ASME B16.25 | End Flanges | ASME B16.5 |
Forged Steel Check Valve Drawings
Material Specifications
| No. | Part Name | Material | ||||
| Standard | Hight Temperature | Stainless Steel | Sour Service | Low Temperature | ||
| 1 | Body | ASTM A105N | ASTM A182 F11/F22 | ASTM A182 F304 | ASTM A105 | ASTM A350 LF2 |
| 2 | Cover | ASTM A105N | ASTM A182 F11/F22 | ASTM A182 F304 | ASTM A105 | ASTM A350 LF2 |
| 4 | Gasket | 304SS+Graphite | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite |
| 5 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B7M | A320 L7M |
| 6 | Seat | STL Overlay | STL Overlay | STL Overlay | STL Overlay | STL Overlay |
| 7 | Disc | A182 F6a | A182 F6a | A182 F316 | A182 F6a Nace | A182 F316 |
| 8 | Spring | A276 316 | A276 316 | A276 316 | A276 316 | A276 316 |
Dimensions & Weight
Forged Steel Check Valve, Class 800, Full Port
| Size | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1-1/4" | 1-1/2" | 2" |
| A | 80 | 80 | 90 | 110 | 127 | 150 | 180 | 210 |
| B | 55 | 55 | 60 | 78 | 88 | 92 | 108 | 145 |
| F,Piston | 7 | 9 | 13 | 17.5 | 22.5 | 29.5 | 35 | 45 |
| F,Swing | 8 | 9.6 | 14 | 18 | 24 | 30 | 36.6 | 48 |
| G | 32 | 32 | 38 | 48 | 56 | 64 | 78 | 85 |
| Weight | 1.4 | 1.4 | 1.6 | 3 | 4.3 | 5.6 | 10 | 16 |
Forged Steel Check Valve, Class 800, Reduced Port
| Size | 1/2" | 3/4" | 1" | 1-1/2" | 2" |
| A | 80 | 90 | 110 | 150 | 180 |
| B | 55 | 60 | 78 | 92 | 108 |
| F,Piston | 9 | 13 | 17.5 | 29.5 | 35 |
| F,Swing | 9.6 | 14 | 18 | 30 | 36.6 |
| G | 32 | 38 | 48 | 64 | 78 |
| Weight | 1.3 | 1.6 | 2.8 | 5.6 | 9 |
Forged Steel Check Valve, Class 1500, Full Port
| Size | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1-1/4" | 1-1/2" | 2" |
| A | 90 | 90 | 110 | 127 | 150 | 180 | 210 | 210 |
| B | 60 | 60 | 78 | 88 | 92 | 108 | 145 | 150 |
| F,Piston | 7 | 9 | 12 | 15 | 20 | 27 | 32 | 40 |
| F,Swing | 14 | 18 | 24 | 30 | 36.6 | 48 | ||
| G | 38 | 38 | 48 | 56 | 64 | 78 | 85 | 95 |
| Weight | 1.7 | 1.7 | 3.1 | 4.6 | 6.5 | 10.6 | 19 | 19 |
Forged Steel Check Valve, Class 1500, Reduced Port
| Size | 1/2" | 3/4" | 1" | 1-1/2" | 2" |
| A | 90 | 110 | 127 | 180 | 210 |
| B | 60 | 78 | 88 | 108 | 145 |
| F,Piston | 9 | 12 | 15 | 27 | 32 |
| F,Swing | 9.6 | 14 | 18 | 30 | 36.6 |
| G | 38 | 48 | 56 | 78 | 85 |
| Weight | 1.7 | 3 | 4.4 | 10 | 18 |
Other Features:
GASKET - The bolted cover check valve uses a contained,controlled compression, spiral wound type gasket.
COVER BOLTING - The cover bolting is manufactured of alloy steel in accordance with the requirements of the applicable specifications such as API 602 and ASME B16.34.
SPRING - The spring is optional and supplied only upon request.
