A Check Valve is a type of valve used for regulating flow in a pipeline. It consists of a movable disk element and a stationary ring seat in a generally spherical body. Check valves are designed to start, stop, and regulate flow within a system. The valve's design allows it to throttle the flow of the medium effectively by varying the size of the opening between the valve seat and the plug.The valve operates by the movement of a disk or plug against a seat, which is located in the center of the valve. The disk moves perpendicularly to the seat, which helps in regulating the flow precisely.
Technical Specification
| SIZE | 1/2" to 2” (15mm to 50mm) |
| CLASS | 150#, 300#, 600#, 800#, 1500#, 2500# |
| BORE | Reduce Bore (Standard Bore), Full Bore |
| DESIGN STANDARD | API 602 |
| TESTING STANDARD | API 598 |
| FACE TO FACE STANDARD | MANUFACTURER'S STANDARD |
| SOCKET WELD STANDARD | ASME B16.11 |
| SCREWED END STANDARD | ASME B1.20.1 |
| BUTT WELD STANDARD | ASME B16.25 |
| FLANGE END STANDARD | ASME B16.5 |
| SPECIAL FEATURES | Nipple Extension, Welded Bonnet |
Material Of Construction
| No. | Description | Material (A-105) | Material (F-304) | Material (F-316) | Material (F-11) | Material (F-22) | QTY |
|---|---|---|---|---|---|---|---|
| 1 | Body | ASTM A 105 | ASTM A 182 GR. F-304 | ASTM A 182 GR. F-316 | ASTM A 182 GR. F-11 | ASTM A 182 GR. F-22 | 1 |
| 2 | Seat Ring | ASTM A 276 TYPE SS-410 | INTEGRAL | INTEGRAL | ASTM A 276 TYPE SS-410 | ASTM A 276 TYPE SS-410 | 1 |
| 3 | Plug | ASTM A 276 TYPE SS-410 | ASTM A 276 TYPE SS-304 | ASTM A 276 TYPE SS-316 | ASTM A 276 TYPE SS-410 | ASTM A 276 TYPE SS-410 | 1 |
| 4 | Spring | ASTM A 313 SS-304 | ASTM A 313 SS-304 | ASTM A 313 SS-316 | ASTM A 313 SS-304 | ASTM A 313 SS-304 | 1 |
| 5 | Gasket | SS-316 SPW + GRAPHITE | SS-316 SPW + GRAPHITE | SS-316 SPW + GRAPHITE | SS-316 SPW + GRAPHITE | SS-316 SPW + GRAPHITE | 1 |
| 6 | Cover Plate | ASTM A 105 | ASTM A 182 GR. F-304 | ASTM A 182 GR. F-316 | ASTM A 182 GR. F-11 | ASTM A 182 GR. F-22 | 1 |
| 7 | Hex Bolt | ASTM A 193 GR. B7 | ASTM A 193 GR. B8 | ASTM A 193 GR. B8M | ASTM A 193 GR. B7 | ASTM A 193 GR. B7 | 4 |
Testing Pressure
| 150# | 300# | 600# | 800# | 1500# | 2500# | |
|---|---|---|---|---|---|---|
| GGC SHELL / BODY | 32 KG/CM² | 78 KG/CM² | 156 KG/CM² | 211 KG/CM² | 390 KG/CM² | 655 KG/CM² |
| SEAT | 22 KG/CM² | 56 KG/CM² | 115 KG/CM² | 153 KG/CM² | 290 KG/CM² | 485 KG/CM² |
Dimensions 800#
| Size | F/F | ØP | ØA | B | H | BUTT WELD | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SH-40 | SH-80 | SH-160 | E | ||||||||
| 15MM | 87 | 9 | 21.8 | 9.5 | 53 | 15.76 | 13.84 | 11.74 | 21.3 | ||
| 20MM | 90 | 12 | 27.2 | 12.5 | 56 | 20.96 | 18.88 | 15.58 | 26.7 | ||
| 25MM | 105 | 17 | 33.9 | 12.5 | 66 | 26.64 | 24.30 | 20.70 | 33.4 | ||
| 32MM | 125 | 23 | 42.7 | 12.5 | 86 | 35.10 | 32.50 | 29.50 | 42.2 | ||
| 40MM | 125 | 25 | 48.8 | 12.5 | 86 | 40.94 | 38.14 | 34.00 | 48.3 | ||
| 50MM | 140 | 29 | 61.2 | 16 | 104 | 52.48 | 49.22 | 42.82 | 60.3 | ||
Dimensions 1500#
| Size | F/F | ØP | ØA | B | H | BUTT WELD | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SH-40 | SH-80 | SH-160 | E | ||||||||
| 15MM | 90 | 8 | 21.8 | 9.5 | 56 | 15.76 | 13.84 | 11.74 | 21.3 | ||
| 20MM | 105 | 9 | 27.2 | 12.5 | 66 | 20.96 | 18.88 | 15.58 | 26.7 | ||
| 25MM | 125 | 14 | 33.9 | 12.5 | 86 | 26.64 | 24.30 | 20.70 | 33.4 | ||
| 32MM | 140 | 20 | 42.7 | 12.5 | 104 | 35.10 | 32.50 | 29.50 | 42.2 | ||
| 40MM | 140 | 25 | 48.8 | 12.5 | 104 | 40.94 | 38.14 | 34.00 | 48.3 | ||
| 50MM | 172 | 27 | 61.2 | 16 | 120 | 52.48 | 49.22 | 42.82 | 60.3 | ||
Dimensions 150#
| Size | F/F | ØF | FT | ØFB |
|---|---|---|---|---|
| 15MM | 108 | 89 | 9.7 | 15.7 |
| 20MM | 117 | 99 | 11.2 | 20.8 |
| 25MM | 127 | 108 | 12.7 | 26.7 |
| 32MM | 140 | 117 | 14.2 | 35.1 |
| 40MM | 165 | 127 | 15.9 | 40.9 |
| 50MM | 203 | 152 | 17.5 | 52.6 |
Dimensions 300#
| Size | F/F | ØF | FT | ØFB |
|---|---|---|---|---|
| 15MM | 152 | 95 | 12.7 | 15.7 |
| 20MM | 178 | 117 | 14.2 | 20.8 |
| 25MM | 203 | 124 | 15.7 | 26.7 |
| 32MM | 216 | 133 | 17.5 | 35.1 |
| 40MM | 229 | 195 | 19 | 40.9 |
| 50MM | 267 | 165 | 20.6 | 52.6 |
Dimensions 600#
| Size | F/F | ØF | FT | ØFB |
|---|---|---|---|---|
| 15MM | 165 | 95 | 14.2 | 15.7 |
| 20MM | 190 | 117 | 15.7 | 20.8 |
| 25MM | 216 | 124 | 17.5 | 26.7 |
| 32MM | 229 | 133 | 20.6 | 35.1 |
| 40MM | 241 | 155 | 22.4 | 40.9 |
| 50MM | 292 | 165 | 25.4 | 52.6 |
*All the measurements provided above are in millimeters (mm).