Mitsubishi Electric ‘EHPT20Q – VM2EA’ stainless steel unvented primary thermal store cylinder unit. An inline booster heater is also fitted into the primary circuit. The cylinder is fitted with two pressure relief valves set at 3.0 bar. Heat is transferred from the stored primary water to the secondary water circuit via a plate heat exchanger which provides instantaneous hot water. The primary thermal storage cylinder is to be filled by the use of the supplied temporary filling loop assembly, which consistd of a stainless steel braided EPDM lined flexible hose, a lever operated brass spherical valve and a DZR brass double check valve assembly (suitable for backflow protection against Fluid Category 3) that incorporates a lever operated spherical valve. A primary expansion vessel is supplied to accommodate the expansion of the primary water when heated. An automatic air vent is fitted to the top of the thermal store. The product is supplied with a tundish. Maximum working pressure: Primary circuit 2.5 bar, Secondary circuit 10.0 bar. Maximum operating temperature: Primary circuit 72°C, Secondary circuit 70°C.
Automatic air venting valve with brass bodies, stainless steel float and EPDM ‘O’-rings. Maximum working pressure 16.0 bar. Maximum operating temperature 120°C.
Range of air venting valves with a blue epoxy coated ductile iron body and carbon steel cover, NBR ‘O’-rings and EPDM seals. Maximum working pressure 10.0 bar or 16.0 bar (see model). Maximum operating temperature 65°C.
Range of air release valves with blue epoxy coated ductile iron bodies and EPDM seals. Maximum working pressure 16.0 bar. Maximum operating temperature 65°C.
Range of T-type thermostatic mixing valves with chrome plated DZR brass body, EPDM’O’-rings and NBR/fibre galsets (except for 252100 CST model). Maximum working pressure 14.0 bar. Maximum operating temperature 100°C.
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