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.
Range of end feed brass fittings for use with copper tube (manufactured to EN 1057). Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.
Range of end feed copper fittings for use with copper tube to EN 1057. The HLDPMFWT and HLDPMFZT models incorporate a captive nut on one end with a fibre gasket washer. Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.
Range of solder ring copper fittings for use with copper tube to EN 1057. The HLSRDPMFWT and HLSRDPMFZT models incorporate a captive nut on one end with a fibre gasket washer. Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.
Range of solder ring brass fittings for use with copper tube (manufactured to EN 1057). Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.
Range of spring-loaded resilient trim, non-return valves with blue epoxy coated ductile iron bodies, stainless steel discs and EPDM seals. Maximum working pressure 16.0 bar. Maximum operating temperature 80°C.
'BOSS 79024607'. White coloured, extruded PTFE tape. For use with water up to 85°C.
Range of pilot operated, adjustable, pressure reducing control valves with blue epoxy coated ductile iron bodies. The valves are supplied with a pilot valve, three spherical valves and a needle valve. Maximum supply pressure 16.0 bar. Outlet pressure setting is adjustable in the range of 2.0 – 12.0 bar. Maximum operating temperature 80°C. Above ground use only.
Range of spherical valves with a single lever or ‘T’ handle operating member. The products have a DZR brass body and a chrome plated DZR brass ball, except for the models with the ‘-OT’ suffix, models have (nickel-plated brass bodies) and chrome plated brass ball. The products are supplied with various end connections (see model). Maximum working pressures: 15mm to 28mm = 40 Bar 35mm = 25 bar 42mm to 54mm = 16 bar (All models). 42 to 54mm = 10 Bar (4E05, 4E05-OT, 4E06 and 4E06-OT models) Maximum operating temperature 40.0°C
Air vent valve with a plastic body and plastic float. Maximum working pressure 16.0 bar. Cold water use only.
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