Membrane safety valves of this type are used to protect closed heating systems according to EN 12828.
Diaphragm safety valves of this type are used to protect closed heating systems according to EN 12828. In accordance with statutory requirements, the diaphragm safety valve is preset to the required fixed set pressure by the manufacturer and is sealed with an embossed security cap marked with the test badge and pressure rating to prevent unauthorised tampering with the setting. Subsequent alteration of the setting is not permitted and is impossible without destroying the security cap. The preset pressure is embossed on the security cap.
Glycol-water mixture, according to VDI 2035 Liquids of the fluid group 1 and 2 (pressure device guideline, item 9) which do not affect the materials used.
Angled brass housing; spring steel adjustment spring; high grade synthetic material security cap with part label; hot water resistant elastomer diaphragm
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