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DN 50 to 250 | PN 16
Body: EN-JS1040
Coating: Epoxy
Designed to protect drinking water networks from backflow of polluted water due to a pressure drop in the network or a back pressure from a potentially non potable water network.
Standard local authority sanitary regulations make it obligatory for owners of installations, which are potentially dangerous, to protect public drinking water network and the internal network from the risk of a backflow of polluted water, this being by means of an approved and regularly maintained device
Can be checked with under pressure gauge taps (upstreams and downstreams pressure)
Reliability tested on 25.000 cycles of opening/closing with a pressure variation of 0 to 16 bar
Head loss lower than standards requirements
Mounting horizontal or vertical upwards only
Sub set disc and seat in bronze, spring made of stainless steel
Epoxy coating by cataphoresis and powder
Equipped with a removable cap
Maintenance in situ without dismantling
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