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Solar Expansion Vessels

When a liquid's temperature changes in a closed system, like a solar installation, it requires an expansion vessel. However, there are distinct variations between solar systems and central heating systems regarding the placement of the expansion vessel and the required capacity calculation. This is primarily because of the medium used and the way solar systems operate.

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Contra-flex 2 to 100 Litre Heating Expansion Vessel

Flamco
Original price £42.68 Ex-VAT - Original price £1,252.89 Ex-VAT
Original price £42.68 Ex-VAT - Original price £1,252.89 Ex-VAT
Original price £42.68 Ex-VAT
£32.01 Ex-VAT - £920.88 Ex-VAT
£32.01 Ex-VAT - £920.88 Ex-VAT
Current price £32.01 Ex-VAT

For sealed heating installations (acc. to EN12828) and chilled water (cooling) installations. Nitrogen gas filling for longer maintenance of pre-p...

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Meitronic Sol Basic Solar controller - Digital Temperature Differential Controller for Thermal Solar Systems

Flamco
Original price £321.24 Ex-VAT
Original price £321.24 Ex-VAT - Original price £321.24 Ex-VAT
Original price £321.24 Ex-VAT
Current price £160.62 Ex-VAT
£160.62 Ex-VAT - £160.62 Ex-VAT
Current price £160.62 Ex-VAT

Digital temperature differential controller for thermal solar systems (1 collector field, 1 tank), full graphic, backlit black/white display, opera...

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Discontinued - Alpha SolarSmart 100 KIT

Alpha Heating Innovation

This product is now discontinued, Contact us for alternative recommendation SolarSmart offers homeowners an easy way to generate free hot water fro...

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Zilmet CAL-PRO 3/4" BSP Heating Expansion Vessel With Bracket 4L to 24L

Zilmet UK
Original price £0.00 Ex-VAT - Original price £0.00 Ex-VAT
Original price £0.00 Ex-VAT
£30.63 Ex-VAT - £41.57 Ex-VAT
£30.63 Ex-VAT - £41.57 Ex-VAT
Current price £30.63 Ex-VAT

Zilmet CAL-PRO Heating Expansion Vessel With Bracket 4L to 24L The Zilmet CAL-PRO heating expansion vessel with bracket is designed for use in seal...

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Connection set for two solar stations

Flamco
Original price £81.42 Ex-VAT
Original price £81.42 Ex-VAT - Original price £81.42 Ex-VAT
Original price £81.42 Ex-VAT
Current price £40.71 Ex-VAT
£40.71 Ex-VAT - £40.71 Ex-VAT
Current price £40.71 Ex-VAT

Pre-insulated and pre-bent corrugated pipe with 2 x 3/4 union nuts; brass T-piece including unions to the solar stations 3/4 M for continuation of ...

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Extension set - Solar volume flow meter 1-13 l/min

Flamco
Original price £128.61 Ex-VAT
Original price £128.61 Ex-VAT - Original price £128.61 Ex-VAT
Original price £128.61 Ex-VAT
Current price £64.31 Ex-VAT
£64.31 Ex-VAT - £64.31 Ex-VAT
Current price £64.31 Ex-VAT

With flow rate meter 1 - 13 l /min, fill and drain valve with 1/2 hose fitting, G 3/4 M with end cap (e.g. for MM connection) bottom connection: 3/...

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MM service coupling Solar Quick release coupling for exp.ves.

Flamco
Original price £54.05 Ex-VAT - Original price £54.05 Ex-VAT
Original price £54.05 Ex-VAT
£60.80 Ex-VAT
£60.80 Ex-VAT - £60.80 Ex-VAT
Current price £60.80 Ex-VAT

Safety quick coupling in acc. with DIN 4751 Sheet 2/93 allows speedy replacement of the MM 3/4 M × 3/4 F (when the screw fitting is disconnected, ...

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Prescor Solar valve

Flamco
Original price £10.31 Ex-VAT - Original price £18.16 Ex-VAT
Original price £10.31 Ex-VAT - Original price £18.16 Ex-VAT
Original price £10.31 Ex-VAT
£7.44 Ex-VAT - £13.09 Ex-VAT
£7.44 Ex-VAT - £13.09 Ex-VAT
Current price £7.44 Ex-VAT

Specially designed for sealed solar installations. Prescor safety valves have a special shape which, not only achieves a perfect seal, but also pr...

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Meitronic Sol Energy - Solar controller

Flamco
Original price £489.57 Ex-VAT
Original price £489.57 Ex-VAT - Original price £489.57 Ex-VAT
Original price £489.57 Ex-VAT
Current price £244.79 Ex-VAT
£244.79 Ex-VAT - £244.79 Ex-VAT
Current price £244.79 Ex-VAT

Pump control by means of block modulation, PWM or 0 - 10 V signal As with the Basic solar controller, however, with full graphic, dimmable colour ...

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Viessmann Solar expansion vessel 80L

VIESSMANN
Original price £154.00 Ex-VAT - Original price £522.00 Ex-VAT
Original price £154.00 Ex-VAT - Original price £522.00 Ex-VAT
Original price £154.00 Ex-VAT
£77.92 Ex-VAT - £264.11 Ex-VAT
£77.92 Ex-VAT - £264.11 Ex-VAT
Current price £77.92 Ex-VAT

Please call to check availability before ordering Live Chat / 01985 850982Viessmann Solar expansion vessel 18L Expansion vessel with shut-off valve...

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Zilmet SOLAR-PLUS 12 Litre to 600 Litre Expansion Vessel for Solar Systems

Zilmet UK

Description The SOLAR-PLUS is a membrane expansion vessel manufactured according to the PED 97/23 EC and EN 13831 standards, suitable for solar sys...

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