Electronically controlled heat interface units (HIU) with twin stainless-steel plate heat exchangers providing space heating and instantaneous hot water. The cold inlet supply to the plate heat exchanger incorporates an isolation valve and a water hammer arrestor. The space heating circuit incorporates an expansion vessel and a pressure relief valve (set at 3.0 bar). The product is supplied with a filling loop assembly consisting of an elbow shaped copper pipe, isolation valve and double check valve assembly (suitable for backflow protection against fluid category 3) which incorporates an isolation valve. The cold mains inlet and the domestic hot water outlet each incorporate a brass bodied spherical valve with a butterfly handle. Maximum working pressures and operating temperatures: Primary: 16.0 bar and 90˚C. Domestic hot water (DHW): 10 bar and 65˚C. Secondary (space heating): 2.5 bar and 85˚C.
Copper heat transformer. Maximum working pressure 11.0 bar. Maximum operating temperature 95°C.
Ranges of wall hung, gas-fired condensing combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system incorporating an expansion vessel and pressure relief valve set at 3.0 bar. The supplies to both domestic hot water and primary are controlled via spherical valves. Products are supplied with a rigid filling loop or keyless filling link. Maximum working pressure of the primary circuit is 2.5 bar & maximum supply pressure of the secondary circuit is 8.0 bar. Cold water supply only. Maximum operating temperature 95°C.
Q4000 range of water meters incorporating stainless steel bodies, FKM rubber gasket and grey epoxy resin liner. Maximum working pressure 16.0 bar. Cold water use only.
Screw down pattern, angled solation valve with a dome type operating member, DZR brass body and an EPDM gasket and ‘O’-rings. Maximum working pressure 10.0 bar. Maximum operating temperature 85°C.
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