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There are some more valves in our plumbing section.
22mm gate type central heating pump isolation valve complete with nut and washer.
Nut has 1-1/2 inch BSP thread (normal heating pump size).
28mm gate type central heating pump isolation valve, with nut and washer.
Pack of 2 rubber washers for central heating pump valves.
These washers measure approx 44mm outside diameter.
Fibre washer for central heating pump / pump valves.
Measures approx 44mm OD.
Spare brass nut for your central heating pump valve - these are designed a special way to allow them to be separated from their valve.
This nut has a 1-1/2 inch BSP thread (standard size for domestic central heating circulating pumps).
22mm differential bypass valve.
Fitted near the boiler, an automatic bypass valve is used to maintain a minimum flow rate through the boiler and to limit circulation pressure when other valves / water paths are closed.
1/2 inch BSP brass automatic bottle air vent (AAV).
With shut off cap that can be used to stop auto venting if so required.
3/8 inch BSP brass automatic bottle air vent (AAV).
This straight filling loop is used to pressurise unvented central heating systems.
Braided hose, one way double check valve and lever operated fill valve.
15mm compression pipe connections at each end of the loop.
Synchron / synchronous motorised valve motor.
Designed to fit most common motorised central heating zone valves, including a lot of models from Danfoss, Drayton, Honeywell, Horstmann, Satchwell, LandS, Myson, Tower and more.
Myson Power Extra MPE222 2 port 22mm motorised zone valve.
Designed for use in fully pumped central heating and hot water systems.
Myson Power Extra MPE228 28mm 2 port motorised zone valve.
3 bar 1/2 inch BSP female x female pressure relief safety valve.
Used to protect central heating system boilers and radiators.
Colour of plastic top may vary from picture (makes no difference to operation of valve).
3 bar 1/2 inch BSP male x female pressure relief safety valve.
6 bar 1/2 inch BSP female x female pressure relief safety valve.
7 bar 1/2 inch BSP female x female pressure relief safety valve.
Brass 1/2 inch BSP pressure relief valve.
This safety valve has a simple adjustable spring loaded mechanism with a lock ring to lock the adjuster in position.
1/4 inch BSP 4 bar back entry water pressure gauge with red reference pointer and scale in bars.
4 bar bottom connection water pressure gauge with red reference pointer and scale in bars.