Non return valves - 11 BIS
- MAXIMUM UPSTREAM PRESSURE 25 bar θ 80°C
- Downstream setting : 1 to 5.5 bar (indicative value according to EN1567 standard)
- Possibility of assembly of compensating spring to obtain settings at 0.5 bar
- With 1/4'' plugs on both sides to allow pressure gauge connection
- Pre-set at 3 bar
- CASING : bronze
- SEAT : stainless steel DN 15 and 20
- female/female
DN | Ref. |
15 | 149B7056 |
20 | 149B7057 |
25 | 149B7314 |
32 | 149B7549 |
40 | 149B7558 |
50 | 149B7561 |