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WM insert check valves are compliant with the regulation of NF Antipollution brand.
According to the NF EN 1717, these EB type check valves, are incorporated in a device, and guarantee the protection of drinking water against a risk of pollution from a fluid of category 2.
• Minimum head loss
• Noiseless operation due to a split obturator
• Does not generate hammering
• Meets the requirements of all europeans aprovals
• Axial guidance oburator with return spring
• Excellent water tightness at high or low back pressure ensured by a designed lip-seal

Main application: water meter
Can also be fitted in any application which need a drinking water network protection; suitable with the design of the product.
Ex: sanitary taps...

Approvals: ACS, NF, KIWA, Belgaqua, WRAS, DVGW, NSF, VA
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Technical Features

Working pressure: 10 bar
Working condition: -10°C to 65°C. Maxi 85°C 1h/day
Body: POM
Obturator: POM
Seal: EPDM
Spring: Stainless steel

Type DN
PFA (bar)
Cat.
Part number Weight (kg)
WM015 15 1/2"
10
4.3 2224138 0,004
WM020 20 3/4"
10
4.3
2224137 0,007
WM025 25 1"
10 4.3 2224139 0,017
WM040 40 1"1/2
10 4.3 2224140 0,035