Range of wall hung, gas fired, combination boilers providing domestic hot water via a plate heat exchanger. The primary circuit incorporates an integral expansion vessel and a pressure relief valve set at 3.0 bar. The product is supplied with a rigid pipe filling loop, followed by a separate isolation valve. The filling loop pipe attaches to the cold water inlet valve which incorporates a double check valve assembly (verified by test, suitable for backflow protection against Fluid Category 3) on the branch to the filling loop. The primary circuit includes an isolation valve on the flow and return and is also supplied with two loose 22mm compression isolation valves and a filter. Maximum working pressure of the primary circuit is 2.5 bar and the maximum supply pressure to the secondary circuit is 10.0 bar. Max operating temperature 65°C.
Hydraulic block assembly comprising of a flow regulator, central heating pump assembly and a stainless-steel plate heat exchanger. Maximum working pressures: DHW circuit: 10.0 Bar Central heating circuit: 2.5 Bar Maximum operating temperature: DHW Circuit: 65.0°C Central heating circuit: 90.0°C
Hydraulic block incorporating heat exchangers with pressed stainless-steel plate bodies and copper brazing. Product also incorporates primary and secondary water way with PPS plastic fittings and adaptors and a flow adjustment valve. Maximum operating temperature: Central Heating Circuit: 90°C, Direct Hot Water Circuit: 65°C. Maximum working pressure: Central Heating Circuit: 2.5 bar, Direct Hot Water Circuit: 10 bar.
Water meter with a DZR brass body, stainless steel temperature sensors and EPDM ‘O’-rings. The inlet incorporates a plastic strainer. Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.
‘RSM’ range of ultrasonic water meters with blue epoxy coated ductile iron bodies, stainless steel transducer and EPDM ‘O’-rings. Maximum working pressure 16.0 bar. Maximum operating temperature 50°C.
Range of static ultrasonic bulk water meters with stainless steel bodies and EPDM 'O'-rings. The products are supplied with two sets of optional (green) gaskets. Maximum operating temperature: Products marked T50: 65°C. Products marked T30: cold water use only.
Range of water meter manifolds with gun metal bodies and ball valve with either a quarter turn stop valve or screw down stop valve. The products incorporate an approved check valve cartridge however, the complete product has not been fully tested to demonstrate it provides backflow protection. Maximum working pressure 16.0 bar. Cold water use only.
Range of concealed thermostatic mixing valves with DZR brass bodies incorporating a thermostatic cartridge controlling the temperature. The inlets incorporate asingle check valve cartridges, however, the complete product has not been fully tested to demonstrate it provides backflow protection Maximum working pressure 10.0 bar. Maximum operating temperature 60°C.
Permanent filling/ pressurisation device for primary heating and chilled water closed circuits in domestic and non-domestic premises. The mains and closed circuit system pressures are continuously checked by two pressure sensors and their differential monitored by microprocessors. In the event of a fall in system pressure, and only if the mains pressure is adequate, a solenoid valve operates to allow water into the system. At all other times a second solenoid valve drains the fill chamber to waste, via tundish (meeting the requirements of an air gap to drain), and allowing air to be admitted via an automatic air vent to create an atmospheric disconnection across the transfer chamber. Maximum working pressure 6.0 Bar. Cold water use only.
Permanent filling/ pressurisation device for primary heating and chilled water closed circuits in domestic and non-domestic premises. The mains and closed circuit system pressures are continuously checked by two pressure sensors and their differential monitored by microprocessors. In the event of a fall in system pressure, and only if the mains pressure is adequate, a solenoid valve operates to allow water into the system. At all other times a second solenoid valve drains the fill chamber to waste, via tundish (meeting the requirements of an air gap to drain), and allowing air to be admitted via an automatic air vent to create an atmospheric disconnection across the transfer chamber. Maximum working pressure 6.0 Bar. Cold water use only.
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