Honeywell DU144A1001 Straight Automatic Bypass Valve

Honeywell DU144A1001 Straight Automatic Bypass Valve

Honeywell DU144A1001 Straight Automatic Bypass Valve

The Du144 automatic bypass valve controls water flow in the heating circuit according to the water pressure across it and is used to maintain a minimum flow rate through the boiler and to limit circulation pressure when other water paths are closed. A bypass circuit must be installed if the boiler manufacturer requires one or specifies that a minimum flow rate has to be maintained whilst the boiler is firing. The use of automatic bypass valves becomes particularly important when heating systems include large numbers of thermostatic radiator valves (trvs) – whilst the trvs are open the automatic bypass valve remains closed, however, as the trvs start to close, the automatic bypass valve starts to open maintaining the required water flow through the boiler. Using an automatic bypass valve is also likely to reduce noise in systems caused by excess water velocities. Because manual or fixed position valves do not regulate the flow and allow water to bypass even when it is not necessary, building regulations require bypass circuits to use automatic bypass valves and not fixed position valves.

Box Contains

1 x DU144A1001 and Connections

  • Hi-visibility markings on bonnet for low light conditions
  • Protection cap to limit user access to settings
  • Supplied with compression fittings for 22 mm copper pipe
  • Spanner flats to assist with tightening of fittings
  • Knurled handwheel for ease of grip
SKU: B00BJ74QNA
Weight: 300 g
Dimensions: 2.8 x 3.8 x 3.2 cm; 300 Grams
Model: DU144A1001
Part: DU144A1001
Pack Quantity: 1
Batteries Required: No
Batteries Included: No
Manufacture: Honeywell Control Systems Ltd
Quantity: 1
calvin-klein-collection listed on couponmatrix.ukgreat-plains listed on couponmatrix.ukpark-dean listed on couponmatrix.uktapas-revolution listed on couponmatrix.uktp-toys listed on couponmatrix.ukvevor listed on couponmatrix.uk
calvin-klein-collection listed on couponmatrix.ukCalvin Klein needs no introduction - the brand has been a household name for decades, with iconic ad campaigns from the likes of Mark Wahlberg and Kate Moss turning heads since the 90s. With a Calvin Klein promo code from us, you can save on stylish picks from this timeless brand. Join in on the cult classic look and don your Calvins today - from world-famous underwear to fashionable denim pieces, you’re sure to find your next wardrobe staple.
great-plains listed on couponmatrix.ukGreat Plains have been combining contemporary design with everyday basics since 1989. Based in London, they are the perfect fit for the modern wardrobe, providing great quality items that stand out in all the best ways. With your Great Plains discount code, you can totally refresh your wardrobe, without it costing the earth. From cosy knitwear, to wearable dress, Great Plains could be the missing piece from your look. Shop with Great Plains and discover a new way of looking at feminie clothing.
park-dean listed on couponmatrix.ukEmbark on an unforgettable break with Parkdean, featuring 66-holiday parks nestled in picturesque locations across the UK, from the serene landscapes of Cornwall to the breathtaking beauty of the Lake District. Immerse yourself in various accommodation options, from cosy lodges to comfortable caravans. Pet lovers rejoice as Parkdean offers dog-friendly holidays, ensuring no family member is left behind. Whether you're seeking adventure with the kids, a romantic couples' retreat or a camping/glamping escapade, Parkdean has you covered. Explore the great outdoors and create lasting memories – all while enjoying exclusive savings with our Parkdean discount code, your ticket to affordable luxury, courtesy of Groupon.
tapas-revolution listed on couponmatrix.ukIndulge in Spain’s top cuisine at Tapas Revolution, where spicy paella, tacos and calamares fritos top the menu. Tapas is meant to be shared with a group, so get the gang together and order a spread with shangri and cocktails all ’round! The Tapas Revolution discounts we have at Groupon can keep your celebration costs down, so check here for a percentage discount on your food bill or a free drink to quench your thirst. A Tapas Revolution awaits from Bath to Newcastle, so you won’t need to travel far to get an authentic Madrid experience.
tp-toys listed on couponmatrix.ukTP Toys has been designing and creating children's play equipment for over 50 years, making the brand one of the most trusted and valued brands on the internet. From climbing frames and playhouses to swing sets and trampolines, there's a outdoor play set perfectly suited for both your children and your garden. Shop for less with a TP Toys discount code and get the kids active without breaking the bank. Ditch the TV once and for all - with TP Toys, the only limit is your imagination!
vevor listed on couponmatrix.ukThe home of hardware fans nationwide, Vevor is a brand name all crafters, builders and mechanics know and respect. Sporting a selection of the finest machinery, devices and tools needed to get a job done right, the only thing you’ll need when visiting is a Vevor discount code to ensure you get a great price along with a great purchase. Whether you’re taking dents out the car, heat-sealing products for your business or crafting pottery, see what machinery Vevor has to help.