Fig 542L
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
- Resilient PTFE Seating Design
- High Degree of Seat Tightness
- Suitable for liquids and gases
- Top guided working parts
- Pressure tight on discharge side
- Flanged inlets available
- Body material – Gunmetal
- Available with Viton seat design
- NPT Thread form available on some sizes
Approved and Certified in accordance with
- Pressure Equipment Directive 92/23/EC (PED)
- BS EN ISO 4126-1
- WRAS
- ISO 9001:2000
Pressure / Temperature Ratings
| Max Set Pressure | Max Temperature |
|---|---|
| 10.5 bar | 195°C |
| Size DN | R BSP | A MM | B MM | C MM | D MM |
|---|---|---|---|---|---|
| 15 | ½" | 30 | 23 | 113 | – |
| 20 | ¾" | 34 | 23 | 118 | – |
| 25 | 1" | 39 | 27 | 132 | – |
| 32 | 1¼" | 46 | 33 | 180 | 27 |
| 40 | 1½" | 54 | 38 | 224 | 27 |
| 50 | 2" | 64 | 46 | 263 | 27 |
| 65 | 2½" | 76 | 55 | 303 | 28 |
| 80 | 3" | 90 | 65 | 366 | 31 |
