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  • Quickstop Advance (Standard Version) for fast Tank or Cistern Refill. Ballcock alternative.
  • How the Quickstop Advance Hydraulic Valves works.
  • Performance Charts for the Quickstop Advanced Sizes.

Quickstop Advance Float Valve - Standard

£25.85  Price includes VAT

Product Code: QS***

Product Description

Ballcock Replacement - Fast Water Tank or Cistern Fill

The Quick Stop Advance Float Valve is designed as an alternative to conventional ballcock valves in water tanks to protect booster pumps. The Quickstop goes instantly from fully open to fully closed, preventing repeated stop/start cycling of pumps when filling tanks or cisterns.

The QuickStop plastic float valve has a very high flow rate allowing rapid filling with minimal pressure loss.

Available in sizes: 0.5", 0.75", 1", 1.25" and 1.5".

The Locking lever easily sets the minimum and maximum tank liquid levels (for Quickstop valves which also have an adjustable arm length see our QuickStop Advance - Adjustable range).

Can be used in water tanks, toilet cisterns, roof tanks, shallow tanks, header tanks instead of a ballcock and float valve.

When water is drawn from the tank, the Quickstop has a delayed re-start level of approximately 3cm, which further reduces the stop/start frequency of the pump.

QuickStop float valves are hydraulic water level regulators with a hydraulically operated closure.

What does the QuickStop size refer to?

The size refers to the connections. The Inlet is a BSP sized male thread (the outlet is a male barbed fitting).

QuickStop SizeInlet BSP Male Thread SizeMinimum hole required
(if putting inlet through cistern wall or similar)*
0.5" (1) 1/2" (12.7mm) 0.825" (21mm)
0.75" (18) 3/4" (19mm) 1.041" (27mm)
1" (25) 1" (25.4mm) 1.309" (34mm)
1.25" (32) 1 1/4 (31.75mm) 1.65" (42mm)
1.5" (40) 1 1/2 (38.1mm) 1.882" (48mm)

* note if drilling a new hole to put inlet through, the instruction manual says to drill 2mm larger.

Technical Information


  • Operating Pressure: 0.2 to 6 bar
  • Max Pressure: 10 bar
  • Bursting Pressure: >20 bar
  • Operation: Continuous
  • Operating Temperature: 0 to 50oC
  • CE Mark


  • Body: Non-toxic Polycarbonate
  • Float: Polypropylene
  • Levers: ABS
  • Membrane: Rubber SEBS
  • Colour: White (0.5"), Black (all other sizes)
  • Screws: Stainless Steel

Included Components

  • Quickstop Advance Float Valve (Standard)
  • Mesh Filters (optional)
  • Washers and Nut
  • Installation Instructions

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