Aylesbury K Type delayed action float valves are specified for commercial water systems and provide an accurate and efficient method of controlling the level of stored cold water in tanks without raised float valve chambers.
Precision-engineered and built to last, all Keraflo Aylesbury™ valves are manufactured under Quality Management Systems certified to ISO.9001:2015 and designed to operate for long periods of time without maintenance.
The valves are easy to install with an ‘up and over’ discharge arrangement which assists in facilitating Type AA, AB, AF, or AG air gap requirements under the Water Regulations.
The Aylesbury range is ideal for pumped systems because the open to closed ‘on/off’ valve operation avoids pump hunting and water hammer. The selected water level is unaffected by pressure fluctuation and the patented ceramic disc sealing mechanism means that there is no seat or washer to wear.
The delayed action of Aylesbury float valves delivers a positive fill to actively churn the water in the tank.
The Aylesbury K Type valve’s weighted float can be adjusted to a number of positions on the brass float arm, allowing the tank’s stored water level to be easily modified.
K Type mechanical float valves are also available in stainless steel for use in demanding environments such as desalination plants and sea water, in the following single head model sizes: 3/4″ (20mm), 1″ (25mm), 1 1/4″ (32mm), 1 1/2″ High Flow (40mm) and 2″ Standard Flow (50mm). Prices are available on application. For further information, please contact our Customer Service team on 0018 921 9920.
When water is taken from the tank and the water level falls (when a tap is opened for example), the Aylesbury K Type valve does not immediately open (at a dribble) as would happen with a BS1212 equilibrium valve. There is, instead, a delay; the valve does not open until the water level has fallen by 75mm.
When the water level has fallen by 75mm the K Type valve moves from a ‘fully closed’ position into a ‘fully open’ position, allowing water to flow into the tank at a maximum flow rate. When the water level has returned to its original full level, the valve immediately closes from the ‘fully open’ position, preventing any of the ‘dribbling’ associated with equilibrium valves. The positive action and full-bore flow delivered by the K Type valve provides a range of benefits including good water turnover, fast refill, the eradication of water hammer and reduced noise.
Here is a selection of documents, designed to ease specification and installation:
Here is video content illustrating the technical application of this product:
BIM objects are available for download from the NBS National BIM Library, in both Revit and IFC formats.
Parts only warranty (no labour) for equipment purchased in the United Kingdom, Ireland, Isle of Man and the Channel Islands. Components of the unit which are proven to be faulty or defective in manufacture will be exchanged or repaired.
1 Year from Date of Manufacture
5 Years from Date of Installation
To register and qualify for Extended Warranty cover, a photograph of the Keraflo Installation Label (included with the product and affixed to the Cold Water Storage Tank) with all installation and commissioning checklist activities completed should be sent via email to firstname.lastname@example.org.
The Keraflo Installation Label affixed to the Cold Water Storage Tank should be signed and dated with the installer’s name and the following details also provided to enable warranty registration: Keraflo product serial number, installation date and tank installation address/location.
Extended Warranty can also be registered online (via the Warranty section of this website).
We have been dealing with Keraflo since 2006 and have found both their products and customer service second to none.
Having dealt with Keraflo for over 16 years, we (Fraser & Ellis) are proud to be associated with and to offer a guaranteed quality product.
The Keraflo valve has been and is a ground-breaking high quality product which never fails to deliver.