Flame-return protection (safety device)
The high-quality brass non-return valves (point of use templates) are type-tested according to EN 730-1 and ISO 5175-1. They have a gas backflow valve and a flame arrester. The larger models (No. 540360 and No. 540365) are additionally equipped with a thermal backflow preventer and a dirt filter.
- The high-quality brass non-return valves are type-tested according to EN 730-1 and ISO 5175-1.
- With gas non-return valve and flame arrester
- With thermal backflow preventer and dirt filter (No. 540360 and No. 540365)
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