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Brass body with swivel elbow and air vent, ball shut-off valve, removable check valve
Safety groups protect water heaters when internal pressure reaches 7 bar.
Model 526, certified to the NF anti-pollution standard EN 1487. For water heaters up to 10 kW
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Approved anti-pollution safety unit (EN 1487 standard), with built-in air vent. Ball
valve, removable check valve. 3/4" cold water and
water heater connections. 1" drain. 3/4
" unit: protects water heaters up to 10 kW.
Pressure safety,
Opening/closing of the water supply to the water heater,
Anti-pollution in accordance with standard D 36 401,
Draining of the water heater by operating the valve cap.
GS: Die-cast brass body, chrome-plated Ball
shut-off valve
The 3/4" safety units protect water
heaters up to 10 kW.
During normal operation of the water heater, the rise in temperature causes the volume of water inside the heater to expand. This water flows out through the drain port.
This small flow is normal, but on the one hand it is a waste, and on the other hand it risks eroding the valve seat, accelerating the leakage rate.
This issue, caused by a purely physical phenomenon, can be remedied by installing a VEXBAL
expansion tank. Installing a pressure reducer set to 3 bar is also recommended (R5331 reducer with a rotating nut for direct mounting on the unit’s M inlet).
Data sheet
Specific References
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Brass body with swivel elbow and air vent, ball shut-off valve, removable check valve
Safety groups protect water heaters when internal pressure reaches 7 bar.
Model 526, certified to the NF anti-pollution standard EN 1487. For water heaters up to 10 kW
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