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Ball valve repair kit

A ball valve repair kit is a repair kit which contains multiple types of spare parts for ball valves. A kit will typically include split pins, high and low pressure valve seatings, washers for Part 1 ball valves, and diaphragms for Part 2 ball valves. Ball valve repair kit overview A leaking ball valve is often …

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Essex flange

An Essex flange is a fitting on a hot water cylinder which prevents a device, such as a shower pump, from being damaged by air. It does this by drawing off water from the side of the cylinder. When water in the cylinder is heated by the coil or the immersion heater, air bubbles form. The top …

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Surrey flange

A Surrey flange is a fitting on a hot water cylinder which prevents a device, such as a shower pump, from being damaged by air. It does this by drawing off water via a tube which dips down into the main body of hot water. When water in the cylinder is heated by the coil …

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Pumping over

Pumping over refers to a symptom of an improperly configured central heating system in which water is discharged into the feed and expansion cistern via the expansion pipe while the pump is running. The cause is usually either: The pump has been installed in a sub-optimal location on the system The pump has been installed …

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