Shock Arrestor

  • Mini Expansion Vessel Shock Arrestor
  • pre-charge: 3 to 3.5 bar
  • 1/2″ BSP

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Introducing the Tower Shock Arrestor – the perfect solution to protect your plumbing system and appliances from the damaging effects of water hammer!

Water hammer can cause extensive damage to your plumbing system, not to mention the costly repairs and replacements that follow. Fortunately, the Tower Shock Arrestor is here to help prevent water hammer and provide you with peace of mind.

Our shock arrestor is designed to absorb the pressure wave that occurs when water flow is suddenly stopped, preventing it from travelling through your pipes and causing damage. With a capacity of 0.16 litres and a maximum operating pressure of 10 bar, the Tower Shock Arrestor is perfect for use in residential and commercial plumbing systems.

Approved by WRAS, our shock arrestor is made with high-quality materials and is designed to last. The Mini Expansion Vessel type device is potable, making it safe for use with drinking water.

Installation is a breeze, and our shock arrestor can be installed in a vertical or horizontal position. Simply connect it to your plumbing system using the 1/2″ BSP TM connection, and you’re good to go!

In addition to preventing water hammer, the Tower Shock Arrestor can also improve the efficiency of your plumbing system, reduce noise, and create a more comfortable environment. Plus, with little maintenance required, you can enjoy peace of mind knowing that your plumbing system is protected with minimal effort.

Don’t let water hammer damage your plumbing system and appliances – choose the Tower Shock Arrestor today and enjoy a more efficient and comfortable plumbing system.

This product is WRAS approved. WRAS approval demonstrates it is of a suitable quality and standard against the Water Supply (Water Fittings) Regulations and Water Supply (Water Fittings) (Scotland) Byelaws, provided it is installed and used in accordance with the installation and requirement notes and any other restrictions within the approval. Any water fitting, which when installed, will carry or receive water from the public mains water supply in the UK, must comply with these regulations. They require that a water fitting should not cause waste, misuse, undue consumption or contamination of the water supply and must be ‘of an appropriate quality and standard’. To learn more about compliance, visit:


  • Product Name: Mini Expansion Vessel Shock Arrestor – 1/2″ BSP
  • Type: Expansion Vessel
  • Capacity: 0.16 litres
  • Vessel pre-charge: 3 to 3.5 bar
  • Max. Operating Pressure: 10 bar
  • Connection: Parallel Size: 1/2″ BSP
  • Diameter: 78 mm
  • Height: 110 mm
  • Dimensions: H 110 x 78 mm diameter
  • Potable: Yes
  • Certification: Approved by WRAS

Product Code: SA1/2

Tower Shock Arrestor Spec Sheet


Tower Shock Arrestor Instructions