02
Primary Service Rating & Test Pressure
| CLASS | PRESSURE RATING | TEMP. |
|---|---|---|
| PN 40 | 300°C |
Note — AIR TEST - SEAT 80 PSIG + 10 PSIG
Fig. 09Check valve09 — Check valve
Disk Type Check Valve
Compact, automatic backflow protection.
"ORBIS" make Disk Type Check Valves are automatic valve that open with forward flow and close with reverse flow to prevent backflow.
Technical Data
- DESIGN & MANUFACTURING STD.
- BS 7438
- TESTING & INSPECTION STD.
- RATING
- PN 40
01
Material Specifications
| NO | PART NAME | MATERIAL | QTY. |
|---|---|---|---|
| 01 | BODY | ASTM A 351 Gr. Cf8 / CF8M | 1 |
| 02 | DISC | AISI 304 OR AISI 316 | 1 |
| 03 | SPRING | AISI 304 OR AISI 316 | 1 |
| 04 | COVER PLATE | AISI 304 OR AISI 316 | 1 |
| 05 | DISC SEAT | METAL TO METAL | 1 |
03
Size Dimension
| IN. | M.M. | ØA | ØB | ØC | ØD | T | L |
|---|---|---|---|---|---|---|---|
| 1/2" | 15 | 43 | 29 | 15 | 38 | 16 | 60 |
| 3/4" | 20 | 53 | 36 | 20 | 45 | 19 | 70 |
| 1" | 25 | 63 | 44 | 25 | 56 | 22 | 80 |
| 1.1/4" | 73 | 55 | 32 | 65 | 28 | 90 | 46 |
| 1.1/2" | 40 | 83 | 66 | 40 | 74 | 31 | 98 |
| 2" | 50 | 93 | 77 | 50 | 85 | 40 | 112 |
| 2.1/2" | 65 | 114 | 98 | 65 | 107 | 46 | 141 |
| 3" | 80 | 132 | 111 | 80 | 122 | 50 | 151 |
| 4" | 100 | 153 | 130 | 100 | 142 | 60 | 181 |
| 5" | 125 | 185 | 161 | 125 | 170 | 90 | 215 |
| 6" | 150 | 212 | 190 | 150 | 202 | 105 | 255 |
| 8" | 200 | 277 | 250 | 200 | 261 | 140 | 320 |
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