Range of booster sets consisting of two to four electronically controlled pumps which are connected in parallel and mounted on a common base provided with suction and discharge manifolds, spherical valves, expansion vessels and pressure gauge/transducers and non return valves. Cold water use only. Maximum working pressure 10 bar where the MTPA vessel is installed. 16 bar where the MTMB vessel is used.
Permanent filling 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. 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. Maximum working pressure 5.0 Bar. Cold water use only.
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