Inoxpa type 72700
Applying the Inoxpa Check Valve
The Inoxpa Check Valve, or non return valve, is a valve that prevents the fluid from flowing backwards and ensures that it flows in only one direction. It can be used to prevent the loss of prime of the pump and water hammer. The valve is widely used in water loops.
Operating principle
The check valve opens when the pressure of the fluid exceeds the pressure exerted by the spring. When the two pressures are compensated, the valve closes. A higher counter pressure will ensure the valve closes.
When there are two pumps operating alternately, the check valves are installed at the outlet of each pump to prevent the backflow when the pump is stopped. The obturation disc is provided with a perforation for a minimal circulation flow to avoid water stagnancy.
- Design and features
- Available sizes: DN 25/1" to 100/4"
- Easy assembly/disassembly with the clamp
- Reduced size design
- Connections: Clamp OD
- Traceability of components
| Articlenr. | Description | Dimensions | Connection | Elastomer | Stock |
|---|---|---|---|---|---|
|
32618329IN
|
Non-returnvalve type 7210
DN40 NBR
BW/BW 316L
|
DN40 (ø 41 mm) | Weld / Weld | NBR (Perbunan) |
|
|
32618335IN
|
Non-returnvalve type 7210
DN80 NBR
BW/BW 316L
|
DN80 (ø 85 mm) | Weld / Weld | NBR (Perbunan) |
|
|
32638304CA
|
Non-returnvalve type 7210
BW/male 11851 1" 316L EPDM
|
1" (ø 25,4 mm) | Weld / Thread |
|
|
|
32638305CA
|
Non-returnvalve type 7210
BW/male 11851 DN25 316L EPDM
|
DN25 (ø 29 mm) | Weld / Thread |
|
|
|
32638307CA
|
Non-returnvalve type 7210
BW/male 11851 DN32 316L EPDM
|
DN32 (ø 35 mm) | Weld / Thread |
|
|
|
32638308CA
|
Non-returnvalve type 7210
BW/male 11851 1,5" 316L EPDM
|
1,5" (ø 38,1 mm) | Weld / Thread |
|
|
|
32638309CA
|
Non-returnvalve type 7210
BW/male 11851 DN40 316L EPDM
|
DN40 (ø 41 mm) | Weld / Thread |
|
|
|
32638310CA
|
Non-returnvalve type 7210
BW/male 11851 2" 316L EPDM
|
2" (ø 50,8 mm) | Weld / Thread |
|
|
|
32638311CA
|
Non-returnvalve type 7210
BW/male 11851 DN50 316L EPDM
|
DN50 (ø 53 mm) | Weld / Thread |
|
|
|
32638312CA
|
Non-returnvalve type 7210
BW/male 11851 2,5" 316L EPDM
|
2,5" (ø 63,5 mm) | Weld / Thread |
|
|
|
32638313CA
|
Non-returnvalve type 7210
BW/male 11851 DN65 316L EPDM
|
DN65 (ø 70 mm) | Weld / Thread |
|
|
|
32638314CA
|
Non-returnvalve type 7210
BW/male 11851 3" 316L EPDM
|
3" (ø 76,1 mm) | Weld / Thread |
|
Materials |
|
| Parts in contact with the product | AISI 316L |
| Other stainless steel | AISI 304 |
| Spring | AISI 302 |
| Gasket | EPDM |
| Internal surface finish | RA<µm |
| External surface finish | Machined (turned) |
| Available sizes | DN25 – DN100 / 1”-4” |
| Stnd. connection | Clamp |
| Options | DIN 11850 / ASME BPE / DN 32676 |
| Male DIN 11851 | |
Options |
|
| Gaskets | NBR, FPM or PTFE |
| Options | SMS, RJT, FIL-IDF etc. |
| Technical specifications | |
| Max. working temperature | -10°C to 120°C (EPDM) |
| Max. CIP | 140°C max. 30 min. |
| Max. working pressure | 10 bar |