Non-return valve DN15, 1 piece WATTS part no. 2224146

IO check valves comply with NF anti-pollution regulations.

In compliance with standard NF EN 1717, these EB-type valves, integrated into a device, guarantee protection of drinking water against the risk of pollution by Category 2 fluids.

- Minimum pressure drop.

- Silent operation thanks to slotted shutter.

- Not a water hammer generator.

- The O-ring mounted on the valve facilitates its incorporation.

- Axial-guided shutter with spring return.

- Excellent sealing at both high and low pressure, ensured by a specially designed lip seal.

- Meets the requirements of various European approvals.

Application: Incorporation of EB-type valves:

- Sanitary fittings.

- Thermostatic mixing valve.

- Water meter.

- Multi-zone heating system.

- Booster pump.

- Injection of chemical fluids into exhaust ducts.

- EA, BA, CA type protection assembly.

- etc...

Approvals : ACS, NF, KIWA, Belgaqua, WRAS, DVGW, SVGW, SSIGE, NSF, VA, Australian Water Quality.

Features :

Operating pressure: 10 bar.

Operating temperature: -10°C to 65°C . Max. 85°C 1h/day.

Nominal diameter: 15 1/2".

Type : IO015.

Body: POM.

Shutter: POM.

Seal: EPDM.

Lip seal: EPDM.

Spring: stainless steel.

How it works :

Vibrations may occur at low flow rates. These vibrations are generated by a lateral movement of the obturator. Until now, it has not been possible to avoid this effect without affecting the hydraulic characteristics of the fluid. Thanks to a unique guiding system with an interlocking obturator, any possibility of obturator movement is eliminated, optimally maintaining hydraulic characteristics and eliminating vibrations. By providing this movement-free guide, scale deposits and vibrations are avoided, guaranteeing faultless, silent operation for years to come.

Manufacturer ref: 2224146.