Venn Co.
Venn CS-2USN type check valve (for water / hot water)

Manufacturer: Venn Co., Ltd.
Model: CS-2USN
Features
- It is a spring system that closes the valve before backflow when there is back pressure or water outage, so it is highly safe and prevents water hammer.
- The valve body contains a synthetic rubber disc.
- Can use for hot water up to 90 ° C.
- Water can supply with low pressure loss.
- Since the pipe end core can attach, the generation of red water is prevented.
- Since the valve body has a cartridge structure, maintenance is easy.
- The noise when running water is 40 dB or less (at the rated flow rate), which is as low as piping.
Specifications
| Product code | CS2USN-F |
|---|---|
| Valve type | Check valve |
| type | Double check valve |
| Nominal diameter | 20 (3/4) |
| Applicable fluid | Tap water / hot water |
| Fluid temperature | 5 to 90 ° C (5 to 40 ° C when using a tube end core) |
| Applicable pressure | 1.0MPa or less |
| Expansion and contraction amount | ─── |
| Backflow prevention pressure | (1/2 x D + 30 mm) water level ~ 1.5 MPa D: Piping outer diameter mm |
| Valve body operability | 40kPa or less |
| Pressure loss | 20kPa or less |
| Rated flow rate | 38L / min |
| End connection | Entrance: JIS G1 (water tap) union nut Exit: JIS R c3 / 4 screw |
| Mounting posture | Free (applies to the flow direction from bottom to top in the case of vertical piping) |
| Material body | CAC406 |
| Material parts | plastic |
| Material disc | EPDM |
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