Expansion Vessels & Ancillaries

Expansion vessels, also known as expansion tanks, can be found in most domestic pressurised heating systems. If you have a combi boiler, you will have an expansion vessel. This vessel contains air and water from the central heating system, and its purpose is to maintain the right level of pressure in the system.

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Advantay D-5 Potable Vessel

AD0093100005

Advantay D series 5 Litre Potable Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 3 bar), Max Operating Temp 99°C, Height 225mm, Wall mounting (with suitable bracket) - White

Status: Out of Stock

Advantay AFH-200 CE horz 10bar Expansion Vessel

AD0093500200

Advantay 200 Litre Horizontal Expansion Vessel complete with universal pump mounting bracket. 1.1/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 665mm - Blue

Status: Out of Stock

Heatrae Sadia Pack U2 Expansion Vessel,PRV & NRV

95970351

Heatrae Sadia Pack U2 Expansion Vessel, PRV & NRV

Status: In Stock

Zip Expansion Vessel & Check Valve

ZPAQ2

Zip 2 Litre Expansion Vessel & Check Valve (3.5bar) Unvented Installation Kit – AQ2

Compatible with 5, 10 and 15L Zip Aquapoint and Varipoint water heaters

Status: In Stock

Zip AQ1 Pressure & Temperature Relief Valve

Zip Pressure & Temperature Relief Valve

ZPAQ1

Zip Pressure and Temperature Relief Valve (7 bar) - AQ1

Compatible with 5, 10 and 15L Zip Aquapoint and Varipoint water heaters

Status: In Stock

3/8" Flamco Flexvent

FLEX010

3/8" Flamco Float Operated Flexvent - Minimum/Maximum working pressure 0.2 / 10.0 bar -Brass

Status: In Stock

1/2" Flamco Flexvent

FLEX015

1/2" Flamco Float Operated Flexvent - Minimum/Maximum working pressure 0.2 / 10.0 bar

Status: In Stock

1/2" Flamco Flexvent Super

FLEXS015

1/2" Flamco Float Operated Conical Flexvent Super - Minimum/Maximum working pressure 0.2 / 10.0 bar

Status: In Stock

1/2" Flamco Flexvent Top

FLEXT015

1/2" Flamco Float Operated Flexvent Top - Minimum/Maximum working pressure 0.2 / 10.0 bar

Status: Out of Stock

1/2" CORE 508 Auto Air Vent c/w Check Valve (AAV)

AD0050800012

1/2" Automatic Air Release Valve with isolating check valve. Max pressure 10 bar, max temperature 110°c.

Status: In Stock

3/8" Advantay Auto Air Vent

AD0050700038

3/8" Advantay Auto Air Vent. 110°c with max pressure of 10 bar as standard.

Status: Out of Stock

1/2" Auto Air Vent ART1360

ALBAAV015

Automatic Air Vent. BSP Parallel Male Ends (ISO 228/1). Body Brass CW617N Nickel Plated. 10 Bar Rated. +5°C to +110°C.

Status: In Stock

1/2" Automatic Air Vent for Water

AAV015

1/2" Automatic Air Vent for Water

Status: In Stock

15nb Hattersley 775 Auto Air Vent

H775015

15mm Hattersley PN10 Automatic Air Vent Fig.775

Status: In Stock

1/2" Spirotop A.A.V. Type "A"

SPIRO015

1/2" Spirotop Brass Automatic Air Vent AAV Type 'A'

Status: In Stock

3/8" Zeparo ZUP Automatic Air Vent

TA7891510

3/8" Zeparo ZUP 10 Automatic Air Vent - 6 Bar, Male thread, Vertical installation.

Status: In Stock

15nb Winns Type B Auto Air Vent

WINB

15nb Winns Brass Type B Automatic Air Vent Eliminator

Status: In Stock

15nb Winns Type C Auto Air Vent

WINC

15nb Winns Brass Type C Automatic Air Vent Eliminator

Status: Out of Stock

15nb Crane PN10 Brass Automatic Air Vent D2003

D2003015

15mm Crane PN10 Brass Automatic Air Vent D2003

Status: In Stock

1-1/4" Advantay Pressure Reducing Valve Female Union

AD0901600114

1-1/4" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Status: Out of Stock

1-1/2" Advantay Pressure Reducing Valve Female Union

AD0901600112

1-1/2" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Status: In Stock

2" Advantay Pressure Reducing Valve Female Union

AD0901600200

2" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Status: In Stock

1/2" Advantay Pressure Reducing Valve (no gauge)

AD0901110012

1/2" Advantay Compact Pressure Reducing Valve BSP, F/F. 1 to 4 bar, pre set at 3 bar adjustable pressure, max 15 bar. Max temp 80°c. (no gauge)

Status: In Stock

3/4" Advantay Pressure Reducing Valve (no gauge)

AD0901110034

3/4" Advantay Compact Pressure Reducing Valve BSP, F/F. 1 to 4 bar, pre set at 3 bar adjustable pressure, max 15 bar. Max temp 80°c. (no gauge)

Status: In Stock

3/4" Advantay Auto Bypass Valve (Full Bore)

AD0055400034

3/4” BSP M/F Automatic Full Bore Angled Bypass Valve. Used in heating systems, reduces system noise and maintains boiler efficiency. Can be used as a system or boiler bypass. Adjustable from 0.1 to 0.6bar, manufactured from brass.

Status: Out of Stock

Heatrae Sadia Pack U1 Pressure Reducing Valve & Strainer

95970352

Heatrae Sadia Pack U1 Pressure Reducing Valve & Strainer

Status: In Stock

Zip AQ3 Pressure Reducer & Line Strainer

Zip Pressure Reducer & Line Strainer

ZPAQ3

Zip Combined Pressure Reducer Valve and Line Strainer - AQ3

Status: In Stock

Advantay Part L Compliant Filling Loop (Complete)

AD0090200500PC

Advantay 15mm Part L Compliant Standard Filling Loop. Complete with ball valve, flexible hose, double check valve with integral ball valve & end caps.

Status: In Stock