Range of wall mounted combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system. The primary circuit incorporates a pressure relief valve set at 3.0 bar and an expansion vessel. The products are supplied with a temporary filling loop which incorporates a combined isolation valve and double check valve assembly (suitable for backflow protection against Fluid Category 3), stainless steel braided EPDM lined flexible hose assembly and an isolation valve. The secondary circuit (DHW) incorporates a stainless-steel strainer. The primary circuit incorporates isolation valves on the flow and return. Maximum working pressures: DHW: 10.0 Bar CH:2.5 Bar Maximum operating Temperatures: DHW: 65.0°C CH: 85.0°C
‘Sonata’ range of water meters with plastic or brass/plastic bodies. Maximum working pressure 16.0 bar.
Non-metallic materials and components comply with BS6920 at 50°C
Range of inline water meters with blue epoxy coated cast iron body. Maximum working pressure 16.0 bar. Cold water use.
Range of water meters with blue epoxy coated ductile iron bodies, plastic measurement chambers and vanes and NBR ‘O’-rings. Maximum working pressure 16.0 bar. Maximum operating temperature 50°C.
Permanent filling devices 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. If the mains pressure is adequate and there is a drop in system pressure, then the two solenoid valves operate to allow water into the system via the transfer chamber. At all other times the normally open solenoid valve drains the transfer 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. Stainless steel strainer on the inlet supply. Mikrofill 3: Maximum working pressure 5.0 Bar. Cold water use only. Mikrofill 3 Pro (72846): Maximum working pressure 9.0 Bar. Cold water use only.
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