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Grant T&P Valve GCS09

Grant

Grant T&P Valve GCS09

Temperature and pressure relief valve for Grant unvented cylinders and thermal stores, with a 1/2 inch BSP connection and 7 bar rating.

Manufacturer part no.
GCS09
Showing prices

£58.52

£48.77 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Grant T&P Valve 1/2 Bsp 7bar is a temperature and pressure relief valve manufactured by Grant for use on its unvented cylinders and thermal stores. It is fitted to the cylinder to relieve excess pressure and temperature from the stored water. The valve has a 1/2 inch BSP connection and a 7 bar rating.

Signs this part needs replacing

  • Water weeping or dripping from the valve outlet or discharge pipe with the system at normal operating pressure
  • The valve discharging during a normal heating cycle without any overheat or overpressure condition
  • The valve failing to reseat and continuing to pass water after the test lever has been operated
  • Scale, corrosion or debris visible around the valve seat or body
  • Reduced or no discharge when the test lever is lifted, indicating the valve is stuck closed

Before you order

  • Confirm the cylinder or thermal store model against the fitment list above
  • Check the existing valve's connection size and pressure rating match 1/2 inch BSP and 7 bar
  • Confirm the discharge pipework and tundish are clear and correctly installed before fitting a replacement valve
  • Isolate and depressurise the cylinder, and drain down as required, before removing the old valve

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.