EA antipollution valves rotating nut inlet - male outlet

As stated in the EN1717 standard, the controlable check valve is a controlable mechanical back ow prevention device, with a closing device designed to allow water to ow in a single direction. It opens automatically, in the direction of ow, when the pressure upstream from the valve is higher than downstream pressure. When the pressure is higher upstream or in the event of the ow stopping, the valve closes in anticipation under the action of a force, for example a mechanical assembly or a spring.

Compliant with the NF EN 13959 standard

• Upstream pressure 10 bars max. • Temperature 90°C max.
• Brass body
• Neoperl polymer valve

Installation on water supply: various applications: pumping unit, network protection, maintenance of downstream pressure

The antipollution valves are controlable

• An upstream port allows for veri cation that it is watertight against valve back pressure after insulating the supply.

• A downstream port also allows the downstream section of the circuit to be drained or emptied

• These two 1/4 Gas threaded ports may be equipped with polymer or brass plugs, or brass drain valves with a wheel

Those antipollution valves can be equipped with brass axial drain valves.

Straight models

Avec bouchons plastique G 14

With plastic G 1/4 plugs

With rotating nut inlet and male outlet

Straight models
Avec bouchons laiton G 14

With brass G 1/4 plugs

(G 1/8 for DN 15 short version)

Straight models With brass G 1:4 plugs
Avec bouchons purgeurs axiaux
shéma

With axial drain valves

1/4 drain valves except for DN15 versions : 1/8 drain valves

Straight models With axial drain valves
Fiche-technique-Clapets-antipollution-1.png tableaux

Elbow models

Avec entrée écrou tournant et sortie mâle
Schema Avec entrée écrou tournant et sortie mâle

With rotating nut inlet and male outlet

Elbow models With rotating nut inlet and male outlet

Option 2 glued 1/4 drain valves and 2 brass plugs

Elbow models Option 2 glued 1:4 drain valves and 2 brass plugs
Option 2 purgeurs axiaux 14
schéma

Option 2 axial 1/4 drain valves

Elbow models Option 2 axial 1:4 drain valves
Fiche-technique-Clapets-antipollution-2.png gt

Option water meter elbow connectors

Option raccords de compteur coudés

Adding an elbow connector to straight valve models widens the elbow MF valves range (existing DN15 and DN20 models) to DN40 model.

These elbow valves are particularly suitable for water meter in a reduced space.

They are made of an EA valve and an MF elbow in CW617N brass (with rotating nut and ber seal).

Option water meter elbow connectors
Raccord-compteur-coudé-060225_1
Capture.PNG gb

Option : supply of elbow connectors only

Option water meter elbow connectors Option supply of elbow connectors only

Rail model

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Schema rail model

Installation on water supply:

The rotating nut allows for direct installation on water meters without an intermediate connector.

Various applications:
Pumping unit, network protection, maintenance of downstream pressure

Rail mounting:
The special connector and its two 3⁄4 lock nuts allow it to be mounted on a meter rail. The valve screws onto the connector.

Rail model
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