We stock a wide range of essential fire sprinkler system accessories and spare parts. If we don’t stock it, we can certainly find it, and get it to you quickly — including flow switches and orifice unions which are available to order online today

The following are normally held in stock for next day delivery:

• Potter flow switches, VSR vane-type alarm switch with adjustable retard; multiple approvals; sizes 2”/50mm to 8”/200mm (VSR-EU, with up to 30 second retard); VSR-S (1” screwed) to suit threaded tees from 1”/25mm to 2”/50mm.
• Galvanised orifice unions, machined in-house with brass/bronze orifice plate (3mm orifice standard, or any other size to your requirement); sizes ½”/15mm to 2”/50mm.
• Sight glasses, providing low cost liquid indication; high temperature and pressure with flat quality glass, internal reflector and shock cushioned; sizes ½”/15mm to 2”/50mm.

The following can be ordered for fast delivery:

• Orifice plates, brass or special materials, 3mm (normally for NB50-100), 6mm (normally for NB100-150) or 10mm (normally for NB150-200) stamped to include your required data.
• Potter flow switches such as ‘VSR’ (previously VSR-F, up to 90 second retard, 2-8”) or VSR-SG (CPVC union connection).
• Flow meters such as Firesure or Platon, flanged or grooved, up to 8”/200mm.
• Pipework-to-go, any configuration to your requirement; for instance a recently designed pressure gauge/switch testing/setting device for both air and water, as pictured below.

Please contact us with your requirements – we pride ourselves on our responsiveness, flexibility and quality and are therefore happy to source whatever you require wherever possible – quickly and at the best price.