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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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

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: Out of Stock

1/2" Automatic Air Vent for Water

AAV015

1/2" Automatic Air Vent for Water

Status: In 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

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" Spirotop A.A.V. Type "A"

SPIRO015

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

Status: In Stock

1/4" PT90 Test Point

TA52179-009

1/4" PT90 Brass Pressure Test Point BSP Thread

Status: In Stock

1000L CORE Heating Expansion Vessel

CHV1000L

CORE Heating Expansion Vessel 1000 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Status: Out of Stock

1000L CORE Potable Expansion Vessel

CPV1000L

CORE Potable Expansion Vessel 1000 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In Stock

100L CORE Heating Expansion Vessel

CHV100L

CORE Heating Expansion Vessel 100 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Status: In Stock

100L CORE Potable Expansion Vessel

CPV100L

CORE Potable Expansion Vessel 100 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In 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

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

110/82mm Airsure Air Admittance Valve

FRG110W

110/82mm Airsure Air Admittance Valve

Status: In Stock

12L CORE Heating Expansion Vessel

CHV12L

CORE Heating Expansion Vessel 12 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Status: In Stock

12L CORE Potable Expansion Vessel

CPV12L

CORE Potable Expansion Vessel 12 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In Stock

150L CORE Heating Expansion Vessel

CHV150L

CORE Heating Expansion Vessel 150 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Status: In Stock

150L CORE Potable Expansion Vessel

CPV150L

CORE Potable Expansion Vessel 150 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In Stock

15mm Altecnic Remote Filling Loop c/w Gauge

ALTST0035

Altecnic Remote Filling Loop with Gauge. Max Static Pressure: 10 bar. Max Fluid Temperature: 100°C

Status: In Stock

15mm CORE Filling Loop (WRAS Approved)

FL015

15mm CORE Filling Loop with caps and collars (WRAS Approved). Used to fill sealed systems from the mains cold water.

Status: In Stock

15mm Ecofil Plus Filling Loop (G24 Approved)

ALTCA300606

Ecofil Plus Filling Loop with check valves (G24 Approved). Used to fill sealed systems from the mains cold water. WRAS approved.

Status: In Stock

15nb Crane PN10 Brass Automatic Air Vent D2003

D2003015

15mm Crane PN10 Brass Automatic Air Vent D2003

Status: In Stock

15nb Hattersley 775 Auto Air Vent

H775015

15mm Hattersley PN10 Automatic Air Vent Fig.775

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

18L CORE Heating Expansion Vessel

CHV18L

CORE Heating Expansion Vessel 18 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Status: In Stock

18L CORE Potable Expansion Vessel

CPV18L

CORE Potable Expansion Vessel 18 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

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

200L CORE Heating Expansion Vessel

CHV200L

CORE Heating Expansion Vessel 200 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Status: In Stock

200L CORE Potable Expansion Vessel

CPV200L

CORE Potable Expansion Vessel 200 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In Stock

24L CORE Potable Expansion Vessel

CPV24L

CORE Potable Expansion Vessel 24 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Status: In Stock

25L CORE Heating Expansion Vessel

CHV25L

CORE Heating Expansion Vessel 25 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

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: In Stock