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Compression Differential Bypass Valve 22mm (40437)

£ 26.42INC VAT

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Compression Differential Bypass Valve 22mm (40437)

Provides protection for both pump and boiler. Meets Building Regulation requirements.

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View all: Essentials Pressure Reducing Valves

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£26.42INC VAT

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Rated 1 out of 5 by from Valve causes noise Commissioned a brand new heating system with this valve installed, but a year later was causing a rumbling noise. So swapped auto bypass for exact same one and 6 months down the line it causes a rumbling noise again. Swapped for a better qaulity one now.
Date published: 2021-11-21
Rated 1 out of 5 by from Very Poor Fitted a few of these and had a couple fail causing noise in the system replaced with a better quality valve
Date published: 2019-04-11
Rated 1 out of 5 by from Poor quality product There is a reason for this being half the price of the Honeywell one. It is nasty, and worst of all it sticks open as the plunger attempts to return to its seat. Took it back for a refund. Of course I may have just got a did, but I would check yours thoroughly before fitting.
Date published: 2017-07-01
Rated 5 out of 5 by from Bypass used as pressure relief I used this device as a pressure relief valve. It does what I wanted and is not expensive so I would use another if required.
Date published: 2012-12-03
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Setting information

Is information available for setting and adjusting the valve
Asked by: TrevW
Hi TrevW, Unfortunately we do not have Instructions we can send you; we would recommend contacting a suitably qualified tradesperson for advice if you have any difficulties. The valve is adjustable between 0.1 to 0.5 bar by turning the white knob. We understand the settings are on the knob itself. Thank you for using Q&A. PB
Answered by: Pebo
Date published: 2022-01-20

Is this adjustable

Asked by: Hoho
Hi Hoho, According to the Specifications on our website it has Settings from 0.1 to 0.5bar. As far as we are aware, it is adjustable. Thank you for using Q&A. PB
Answered by: Pebo
Date published: 2017-04-15

What is the maximum working pressure?

Asked by: CGS2
Hi CGS2, The manufacturer has advised that the maximum safe working (inlet) pressure is 10 bar. Thanks for using Screwfix Q&A.
Answered by: JTremain
Date published: 2016-12-17

Can this be fitted in any direction

Asked by: Moeden
Hello Moeden, These can only be installed one way as per the arrow on the valve that signify the direction of the flow. Thank you for using Q and A.
Answered by: Chubbtonk
Date published: 2016-11-07
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Specification
Brand Essentials
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 22 mm
Product Type Compression Differential Bypass Valve