HONEYWELL DU146-11/4E DIFFERENTIAL BY-PASS VALVE 1 1/4" BSPF

Our Part No
4200185
MPN
DU146-11/4E

Our Price

£250.46 inc VAT

Available in 5-7 working days

  • Order today and we'll despatch as soon as new stock arrives (normally in 5-7 working days)

  • The UK's leading provider of heating spares and consumables since 2006

  • Need help? We're available every day

HONEYWELL DU146-11/4E DIFFERENTIAL BY-PASS VALVE 1 1/4" BSPF.

The Honeywell DU146-11/4E Automatic Bypass with differential pressure valve control is used to control the water flow within a heating circuit. It is designed to maintain a minimum flow rate through the boiler as well as to limit the circulation pressure when other water paths are closed.

The DU146-11/4E also helps minimise flow noise, hinder boiler corrosion and doesn't require external controls.

Technical Specification

  • Medium Type: Water or Water-Glycol mixture (According to VDI 2035)
  • Port Diameter: 1 1/4"
  • Port connection: Internal threads
  • Maximum operating pressure: 3 bar
  • Differential pressure setpoint fixed: 0.2bar
  • Differential pressure set point range: 0.05bar to 0.5bar
  • pH range: 8 to 9.5

The HONEYWELL DU146-11/4E DIFFERENTIAL BY-PASS VALVE 1 1/4" BSPF is a genuine, brand new Honeywell Heating Supplies product, covered by a Honeywell Heating Supplies manufacturer's guarantee.

Not what you're looking for? Try our unique Spares Finder tool or you can view all Honeywell Heating Supplies products.

For advice on this or any product, please call us on 0330 123 3707, email us at web@dhsspares.co.uk, or see additional ways to contact us here.

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Why buy from Direct Heating Spares?

There are many great reasons to choose us over our competitors!

  • Trading since 2006, we are the UK's top supplier of boiler and heating spares.
  • Official stockists for over 100 leading UK and European brands.
  • Over 20,000 parts stocked in our UK warehouse located in Chorley, Lancashire.
  • We only stock genuine, brand-new items, unlike other websites that list reconditioned or replica/copy parts.

  • Competitive pricing with a secure checkout and a choice of payment methods.

  • We offer multiple options for delivery and collection.
  • Our team are available every day (excluding bank holidays) should you need support.
  • Not just spares specialists – we also sell other product ranges too, including electrical, consumables, and trade essentials.
  • Generous returns policy of 30 days as standard.
  • We are passionate about giving back to charity.

We offer several delivery options, leveraging our long-standing relationships with trusted and reputable UK couriers.

We also partner with UPS to allow you to collect your order from over 3,000 Access Points across the country at your convenience, including local shops and newsagents.

The full selection of these will be shown at the Basket stage. Simply add your desired product(s) to your Basket and the most appropriate delivery options will be dynamically calculated for you.

Please see our Delivery Options page for more information.

We are proud to offer a generous returns policy of 30 days as standard to all online customers.

Please see our Returns Policy here for more information and exclusions.

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