Description
Specification Standard :
-Pipe thread end is according : ISO 228(DIN 259)
BS 21 (JIS B0203)
Feature :
-Screwed end BSPT/PP connection
-Forged brass
-The valve are designed to prevent reverse flow automatically
-Spring iun stainless steel
-Steam in brass
-Spring load type disc
Application :
-For general and industrial services
-Applicable medium : water, light oil, &non-corrosive
ad non-combusible gas
Materials :
| No. | Parts | Material |
| 1 | Body | Brass (HPB57-3) |
| 2 | Spring | Stainless steel |
| 3 | Piston | Brass (HPB57-3) |
| 4 | Spring-board | Brass (HPB57-3) |
| 5 | Seal gaskety | NBR / EPDM |
| 6 | Bonnet | Brass (HPB57-3) |
| Test Requirements | |
| Working Pressure | 150 PSI (10 Bar) |
| Maximum Pressure | 200 PSI (14 Bar) |
| Shell Test Pressure | 300 PSI (21 Bar) |
| Applicable Temperature | -20 ~ 80 °C |
Dimension
| Size | 1/2″ | 3/4″ | 1″ | 1-1/4″ | 1-1/2″ | 2″ | 2-1/2″ | 3″ | 4″ |
| D | 33.5 | 40 | 45.5 | 57.5 | 67 | 80 | 97.5 | 111 | 140 |
| H | 46 | 49.5 | 57 | 62.5 | 72 | 79.5 | 94 | 101.5 | 121.7 |
| PN | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| t | 11.5 | 12.5 | 15 | 16 | 16 | 18 | 22.5 | 24.2 | 26 |
