Keraflo Aylesbury ‘KP’ Type Float Valve (Delayed Action) WRAS Approved Valves

Keraflo Aylesbury ‘KP’ Type float valve kits comprise of an in-line control valve together with an Aylesbury ‘KB’ type float valve acting as a pilot. The Aylesbury ‘KP’ is a fully variable delayed action type valve, WRAS approved, suitable for use in cold water tanks with or without raised valve chambers and is ideal for mains or pumped systems

Keraflo ‘KP’ type float valve does not immediately open when water is taken from the tank and the water level falls. Instead, there is a delay and the valve does not open until the water level has fallen by a user selected level.

When this occurs, the ‘KP’ type float valve moves from a fully ‘closed’ position to a fully ‘open’ position allowing the water to flow in a return to the tank to its original fill level.

Keraflo Aylesbury ‘KP’ Type Float Valve – Product Benefits

Keraflo Aylesbury KP valve’s weighted float can be adjusted to a virtually unlimited range of opening and closing positions, allowing the tank’s stored water level to be easily modified.

Aylesbury KP valve is suitable for installation directly into a tank or raised valve chamber and is lightweight, reducing tank wall stress and avoiding the need for a supporting structure.

The positive action and full bore flow delivered by the ‘KP’ type float valve provides further benefits such as good water turnover fast refill, the eradication of water hammer and reduced noise.

An optional upstream pressure sustaining regulator is available to allow the control valve to regulate itself to leave the desired minimum upstream pressure (adjustable 1-6 bar)

Keraflo Aylesbury ‘KP’ Type Float Valve – Product Sizes

1 1 ⁄2” (40mm)	2” (50mm)	2 1/2″ (65mm)	3″ (80mm)	4″ (100mm)	6″ (150mm)	8″ (200mm)
✓	✓	✓	✓	✓	✓	✓

 

Keraflo –  How the Aylesbury KB type FLOAT valve works

Keraflo ‘KB’ Type Float Valve Illustration

Keraflo ‘KP Type’ Float Valve – Single Tank Fitting

KERAFLO ‘KP TYPE’ FLOAT VALVE – Twin TANK FITTING

FLOAT VALVES SELECTOR

Contact T&D Technical Team with the following information to enable the correct specification of Keraflo float valves :

• State the application (e.g break tank, gravity tank, rainwater tank, sprinkler tank etc)
• What is the float valve flow rate required?
• What is the line size (supply pipe bore)?
• What is the water supply?
• Depth of tank (from supply inlet to tank floor)?
• Does the tank have a raised valve chamber?
• Do you have a requirement for monitoring and control? (e,g level and temperature monitoring, alarms etc)?

Keraflo’s 20 page UK Water Supply – A Guide to Regulations highlights the design implications of this legislation with regard to float valves. This highly informative A4 document explains air gap types, fluid categories of risk and explains in detail the system design implications of the most common air gap types.

A Guest Blog by Keraflo, manufacturers of Aylesbury delayed action float valves and digital tank management systems. The article stresses the importance of installing WRAS Approved valves ensuring the protection of public health by preventing contamination of public water supplies.

 ➡ Did you know? T&D supply VEGA Level Sensors for level, point level and pressure measurement.

Thorne & Derrick are suppliers of a complete range of float valves, water management and water metering products.

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Data Sheets

• Keraflo Aylesbury ‘KP’ Type Fitting
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• Keraflo Aylesbury ‘KP’ Type Twin Fitting
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• Keraflo Aylesbury ‘KP’ Type Flow Rate Chart
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• Keraflo Best Practice Water Tank Management Guide
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• Keraflo Guide To UK Water Supply Regulations
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• Keraflo Aylesbury ‘KP’ Type Float Valve Delayed Action Catalogue
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