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    • Plumbing Valves & Stopcocks Caleffi - 1/2" Series 309 Pressure & Temperature Relief Valve Set at 90°C - 10 Bar - 309400 CST

    Caleffi - 1/2" Series 309 Pressure & Temperature Relief Valve Set at 90°C - 10 Bar - 309400 CST

    061-475-0703

    £45.85 inc. VAT

    £38.21 ex. VAT

      Typically available in 2-4 working days

    • The Caleffi Series 309 Pressure & Temperature Relief Valve is a safety-critical mechanical fail-safe designed exclusively for unvented domestic hot water storage cylinders. Its primary function is to protect the structural integrity of the hot water tank by preventing the stored water from reaching a critical boiling state. If system safety controls fail and temperature or pressure thresholds are breached, the valve activates automatically, discharging a controlled volume of water to lower system energy and safely restore stable operating conditions.

      • Temperature setting: 90°C
      • Pressure Setting: 10 Bar
      Brand
      Caleffi
      Category
      Pressure & Temperature Relief Valve
      Product Code
      061-475-0703
      Main Material
      Dzr Brass
      Main Colour
      Gold
      Box Quantity
      1
      Weight
      255 g
      Width
      55 mm
      Height
      190 mm
      Diameter
      30 mm
      GTIN
      0708747450699

    • Collect in-store

      Collection is available between 9 am and 8 pm Monday to Friday, and between 11 am and 3 pm on Saturdays and Sundays.

      Please wait for us to contact you before making your way to collect your items. Items must be inspected on collection.

      Please ensure to bring your order confirmation with you on collection.

      Estimated collection Thursday 25th.

    • Our delivery policy

      We will deliver goods as soon as possible. An estimated delivery date will be provided on the checkout pages. For in-stock items, this may be as soon as the next day; for out-of-stock items, it may take a few days longer.

      Local deliveries are available for addresses based in SW and SE postcodes in London, with free delivery for orders over £150 ex VAT.

      Courier deliveries are available to the rest of the UK, excluding Northern Ireland, the Channel Islands, the Isle of Man, the Isle of Wight, Llandudno (Wales) and the Scottish Highlands. Free standard delivery for orders over £150 ex VAT (for some products, an additional delivery surcharge may apply).

      Please see our 'Terms of Sale' for more information regarding our delivery policy.

      Order before 3.00pm for estimated delivery between Wednesday 24th and Monday 29th.

    • Our returns policy

      Please see our 'Terms of Sale' for more information regarding our Returns Policy.

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