Fig 542
Nabic Pressure Relief Valves are intended for use where pressure tightness is required on the discharge side of the valve.
They are ideal for pump relief, bypass relief, outside installations and inert gases.
Features & Benefits
- Flanged inlets available
- Body material - Gunmetal
- Available with Viton seat design
- NPT Thread form available on some sizes
- Resilient PTFE seating design
- High degree of seat tightness
- Suitable liquids and gases
- Top guided working parts
- Pressure tight on discharge side
Approved and certified in accordance with:
- WRAS
- ISO 9001:2000
- Pressure Equipment Directive 97/23/EC" (PED)
- BS EN ISO 4126-1
Dimensional Drawing
Dimensions
|
SIZE DN |
R BSP |
A MM |
B MM |
C MM |
D MM |
| 15 | 1/2 | 30 | 23 | 113 | - |
| 20 | 3/4 | 34 | 23 | 118 | - |
| 25 | 1 | 39 | 27 | 132 | - |
| 32 | 11/4 | 46 | 33 | 153 | 27 |
| 40 | 11/2 | 54 | 38 | 198 | 27 |
| 50 | 2 | 64 | 46 | 236 | 27 |
| 65 | 21/2 | 76 | 55 | 275 | 28 |
| 80 | 3 | 90 | 65 | 335 | 31 |
Pressure / Temperature Ratings
| Max Set Pressure | 10.5 bar |
| Max Temperature | 195°C |
