The safety valve ensures consistency of coolant flow in the secondary circuit of the heating system, regardless of the flow rate in the hinges of the heated floor. If the differential pressure is exceeded, the valve directs a part of the flow to the bypass of the pumping and mixing unit. The use of a relief valve protects the pump from working “on the closed valve”, makes it possible to maintain the circulation of coolant even when the collector loops are completely closed. Valve differential pressure settings range from 20 to 60 kPa. The valve body is made of brass, the spring is stainless steel нержавеющей The material of the seals and the valve spool is NBR elastomer. Valve adjustment is carried out using a plastic handle.
| Size, G | 1/2” | ||
| G × C × D × E, mm | 1/2″ × 46,5 × 63 × 25,5 | ||
| Set pressure, bar | 1,5 | 3,0 | 6,0 |
| Working pressure, bar | up to 10 | ||
| Maximum temperature of the medium, ℃ | 120 | ||
| Differential pressure setting range, bar | 0,2 ÷ 0,6 | ||
| Direction of medium flow | Only under spool (by the arrow on the valve body) |
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| Repairability | Repairable | ||
| Body material | Brass CW617N | ||