Designation
| NO | NAME | 
|---|---|
| 1 | Body | 
| 2 | Disc | 
| 3 | Seal Ring | 
| 4 | Spring | 
| 5 | Plate | 
| 6 | Ring | 
| 7 | Clamp | 
Technical Date
- Required differential pressure for opening the valve when fitted in a vertical pipe, as shown in fig.3, is approx. 6kpa(0.06bar).
- Max. product pressure: 1000kpa(10bar).
- Max. temperature: 140°C(EPDM).
- Min. temperature: -10°C.
Materials
- Steel parts: Stainless steel AISI 304 or acid-resistant steel AISI 316l.
- Seal ring: EPDM rubber.
- Finish: Semi bright.
Connections
- 
The valve is available with welding ends for
 tubes according to 3A,SMS,BS,DIN 11850.
Options
Ordering
- Please state the following when ordering:- Size.
- Steel garde, AISI 304 or AISI 316L.
- Rubber garde if not EPDM.
 
Specification
Inch Size Weld Non-return Valve
| Size | ID mm | OD mm | L1 mm | L2 mm | 
|---|---|---|---|---|
| 1/2" | 9.5 | 12.7 | 30 | 45 | 
| 3/4" | 15.8 | 19.05 | 30 | 45 | 
| 1.0" | 22.1 | 25.4 | 23.5 | 35 | 
| 1.5" | 34.8 | 38.1 | 28.5 | 45 | 
| 2.0" | 47.5 | 50.8 | 28.5 | 45 | 
| 2.5" | 60.3 | 63.5 | 28.5 | 45 | 
| 3.0" | 72.9 | 76.2 | 28.5 | 45 | 
| 4.0" | 97.6 | 101.6 | 42 | 75 | 
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