Honeywell Du146 1-1/4 Inch E Diff By-pass Valve buy online at trade prices  feedback | view cart | contact us | faq | home
MyTub - Plumbing, Parts and Spares, Drainage and Heating trade supply specialists
Shopping cart
You have no items
in your trolley.
SubTotal : £0.00
Contact MyTub for plumbing supplies 0844 556 1818


Plumbing Trade prices delivered to your door

 Upto 60% off RRP
Tuesday 25, August 2026
login / register 		 
  Departments
Bathroom & Kitchen Bathroom & Kitchen Supplies
Heating System Supplies Heating System Supplies
Domestic Heating Controls Domestic Heating Controls
Center Domestic Controls Center Domestic Controls
Convotherm Convotherm
Danfoss Devi Trace Heating Danfoss Devi Trace Heating
Danfoss Digi Stats and Receivers Danfoss Digi Stats and Receivers
Danfoss Randall Domestic Controls Danfoss Randall Domestic Controls
Danfoss Randall Timeclocks and Programmers Danfoss Randall Timeclocks and Programmers
Danfoss Thermostatic Hot Water Controls Danfoss Thermostatic Hot Water Controls
Danfoss Thermostats New Danfoss Thermostats New
Domestic Controls Pack Promotions Domestic Controls Pack Promotions
Drayton Commercial Heating Controls Drayton Commercial Heating Controls
Drayton Migenie and Wiser Drayton Migenie and Wiser
Eph Valves and Controls Eph Valves and Controls
Hive Smart Thermostat and Accessories Hive Smart Thermostat and Accessories
Honeywell Domestic Controls and Programmers Honeywell Domestic Controls and Programmers
Honeywell Evohome Products Honeywell Evohome Products
Honeywell Lyric T6 Smart Prog Room Stats Honeywell Lyric T6 Smart Prog Room Stats
Honeywell Smartfit Controls Honeywell Smartfit Controls
Honeywell St9000 Range Honeywell St9000 Range
Honeywell T4 Programmable Room Stats Honeywell T4 Programmable Room Stats
Horstmann Domestic Controls and Programmers Horstmann Domestic Controls and Programmers
Ideal Halo Lite Ideal Halo Lite
Invensys Domestic Controls and Programmers Invensys Domestic Controls and Programmers
Invensys Mi Series Domestic Controls Invensys Mi Series Domestic Controls
Invensys Tap Stats and Cyltrol Valves Invensys Tap Stats and Cyltrol Valves
Invensys Valves and Actuators Invensys Valves and Actuators
Myson Auto By Pass Valve Myson Auto By Pass Valve
Myson Auto ByPass Valve Myson Auto ByPass Valve
Myson Controls Myson Controls
Myson Electronic Controls Myson Electronic Controls
Myson Powerextra Motorised Valves Myson Powerextra Motorised Valves
Myson Ufh Myson Ufh
Neomitis Domestic Controls and Programmers Neomitis Domestic Controls and Programmers
Nest Controls Nest Controls
Netatmo Smart Thermostat and Accessories Netatmo Smart Thermostat and Accessories
Pegler Domestic Controls and Programmers Pegler Domestic Controls and Programmers
Potterton Sensomatic Controls Potterton Sensomatic Controls
Potterton Sensomaticrols Potterton Sensomaticrols
Secure Domestic Controls and Programmers Secure Domestic Controls and Programmers
Siemens Domestic Controls Siemens Domestic Controls
Sunvic Boiler and Immersion Stats Sunvic Boiler and Immersion Stats
Sunvic Domestic Controls Sunvic Domestic Controls
Timeguard Supplymaster Programmers Timeguard Supplymaster Programmers
Vaillant Smart Controls Vaillant Smart Controls
Valor Gas Fire Spares Valor Gas Fire Spares
Parts and Spares Parts and Spares Supplies
Domestic Heating Controls Domestic Heating Controls
Drainage Above & Below Ground Drainage System Supplies
Air Conditioning & Refrigeration Supplies Air Conditioning & Refrigeration Supplies

  Manufactures
Manufactures Manufactures list

  Collections
collections Design collections
Home > > > > > >

Honeywell Du146 1-1/4 Inch E Diff By-pass Valve

Honeywell Domestic Controls and Programmers - Honeywell Du146 1-1/4 Inch E Diff By-pass Valve
Honeywell Domestic Controls and Programmers - Honeywell Du146 1-1/4 Inch E Diff By-pass Valve

Honeywell product

26% 26 percent off rrp

Department: Honeywell Domestic Controls and Programmers
  Honeywell Du146 1-1/4 Inch E Diff By-pass Valve
    Features:

• Integral pressure indicator for simple setting up
• Wide differential pressure range 0.05 to 0.5 bar
• Lockable set point adjustment
• Reduces system noise and maintains an even system pressure
• Ensures constant flow through boiler or branch of large heating system
• Lockable set pressure prevents inadvertent adjustment
  HONEYWELL DU146 1-1/4 Inch E DIFF BY-PASS VALVE The DU146 Automatic Bypass Valve controls flow of water through a bypass circuit which is typically installed between flow and return pipework on a large system or branch of a district heating system. Building Regulation advice states that if a bypass is installed, an Automatic Bypass Valve must be fitted. The DU146 saves energy by only allowing flow through the bypass when needed i.e. when flow through the system is reduced when zone valves or radiator thermostats are closing. The use of an ABV is recommended by the UK government as Best Practice in the CHeSS (Central Heating System Specifications) guide to central heating systems.
Manufacture: Honeywell
Notes: Control Device: Wired
KW: -
Length (''): -
Length (mm): -
Model Number: DU146
Range: Valve
Warranty: 1 Year
Honeywell
Code#:		 DU146-11/4E
MyTub Code#: 109982
PDF File: Download pdf brochure 11.44mb
 
rrp£224.60
save£57.40
inc vat(£200.64)

price£167.20

Free UK delivery
email for overseas delivery charges

Stock Check Honeywell Du146 1-1/4 Inch E Diff By-pass Valve Normally stocked
3-5 days delivery, double check stock level here..
   
 

Related Honeywell Domestic Controls and Programmers Products
Honeywell 272742a Ball Plug/ring Kit
Related item Honeywell 272742a Ball Plug/ring Kit
rrp£13.32
our price£9.90
Honeywell 4000-3916-001 P/head - V4043h
Related item Honeywell 4000-3916-001 P/head - V4043h
rrp£104.08
our price£77.50
Honeywell Tg511a 1018 Thermostat Guard
Related item Honeywell Tg511a 1018 Thermostat Guard
rrp£55.49
our price£41.30
Honeywell R6660d1041 Hc60ng Receiver
Related item Honeywell R6660d1041 Hc60ng Receiver
rrp£145.00
our price£107.41
Honeywell 40002737-003 240v Synchron Motr
Related item Honeywell 40002737-003 240v Synchron Motr
rrp£61.91
our price£46.09
Honeywell M6063l 4003 Actuator For V5433a
Related item Honeywell M6063l 4003 Actuator For V5433a
rrp£267.65
our price£197.77
Honeywell L6190b 2014 Aquastat Single
Related item Honeywell L6190b 2014 Aquastat Single
rrp£91.63
our price£67.88
Honeywell Analogue Room Stat Rf Plus Hc60 Set
Related item Honeywell Analogue Room Stat Rf Plus Hc60 Set
rrp£154.70
our price£115.16

Honeywell Du146 1-1/4 Inch E Diff By-pass Valve Delivered to your door

Shopping cart
Your Shopping Cart is Empty

Contract Pricing and Quantity Discounts available

  Recently viewed  
Honeywell Du146 1-1/4 Inch E Diff By-pass Valve honeywell du146 1-1/4 inch e diff by-pass valve
£167.20
Honeywell Du146 1-1/4 Inch E Diff By-pass Valve honeywell whitbread 1.5kw prog stat
£95.35

Feedback
The shower screen I ordered arrived promptly and is great! It is everything it said it was in the online description and was easy to fit and adjust. I think it is excellent value for money.
...Mrs Susan Arnold
Excellent service. Item arrived on day requested and early in the day so didnt require hours of waiting and a wasted day. Would definitely use again.
...Les Green
Goods delivered as agreed. Excellent service. many thanks.
...Bryan Pope
Hello Received order thank you and delighted with service. Kind regards Mr and mrs C.Milne
...Mrs Christine Milne
Wonderful service. Arrived the day following the order, despite the delivery being quoted as two days.
...Colin Turnage
Kept very well informed of order statues and swift delivery. Really pleased
...W Tuckey
Thank you the items the orderd was on back order but i was informed at all times and the order was delivered as stated thank you
...Keith Midgley Fasset
Thanks Jeanette for the reply - have been very impressed with the pricing, ordering and service received form your company, and will certainly recommend you to friends !!! Thanks again Mr & Mrs Falconer
...Mrs Falconer
excellant site, great service, great product and great website to find what you are looking for. Will use again due to the fast delivery and great service that you gave to me. product identicle to item required so there was no need to mess around, simples.
...Craig Morris
received with thanks
...steve lindley

Why choose MyTub Limited for honeywell du146 1-1/4 inch e diff by-pass valve DU146-11/4E?

  • Fast deliveries
  • Nationwide UK distribution delivery network
  • Local pickup if required
  • Professional Human Service
  • Pre sales tech advice
  • Second to none after sales service
  • This honeywell du146 1-1/4 inch e diff by-pass valve DU146-11/4E is a genuine branded product
  • Worldwide export if required
  • Read what the experts, our customers have to say above.

Price Match Guaranteed
MyTub ltd Plumbing Supplies  
      VAT relief for disabled people MyTub is a member of the British Chambers of Commerce  
Major credit cards accepted
 Verified by VISA  
MasterCard SecureCode
MyTub Ltd
61 Victoria Terrace
Whitley Bay
Tyne & Wear
NE26 2QN
Company No. 06352542
VAT number: 917634607
Telephone 0844 5561818 calls are charged at 7p per minute PLUS your telephone network will charge you which can be significant.
Copyright 2007 - 2026 © MyTub Ltd
Honeywell Spares
Honeywell Du146 1-1/4 Inch E Diff By-pass Valve