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Straight Auto Bypass Valve 22mm (4747V)

£ 9.58INC VAT

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Straight Auto Bypass Valve 22mm (4747V)

A simple means of ensuring adequate flow through boilers which require a bypass. Ideal for sealed systems to protect pumps when zone valves close.

  • Reduces System Noise
  • Easy Installation
  • Ideal for Combi Boilers
  • Easy to Adjust

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View all: Unbranded Flues & Boiler Accessories

£9.58INC VAT

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Straight Auto Bypass Valve 22mm is rated 5.0 out of 5 by 2.
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Rated 5 out of 5 by from Good quality valve This valve looks and feels well made and is simple to adjust. It was slightly longer than the manual valve it replaced, but was simple to fit and performs as expected. It's been fitted for 2 weeks and no problems, but can't comment on the long term reliability. My system shouldn't ever 'need' a bypass as it's a W valve system with one rad with no trv, so the manual bypass was very inefficient but I didn't want to just shut it off. This valve has stopped all the flow through the bypass in normal use (I set it to 0.25 bar having done the sums for my system.)
Date published: 2019-10-16
Rated 5 out of 5 by from Fit for purpose Works as required. No long term test yet but have used before and had no call backs
Date published: 2018-02-18
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Replacement for Honeywell Bypass Valve ?

Is this a direct replacement for a HONEYWELL STRAIGHT AUTO BYPASS VALVE 22MM (34127) Same centres etc so ne need for any pipework change ? Anyone know if the Honeywell valves ever fail open ?
Asked by: MikeM100

What is the width of this?

Asked by: Mengineer
Hi Mengineer, Our warehouse staff have advised that the width (length from end to end) of this valve is 73mm, Thanks for using Screwfix Q&A. JT
Answered by: JTremain
Date published: 2019-09-20
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Specification
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 22 mm
Product Type Straight Auto Bypass Valve