Surveys carried out on a vast range of sites revealed that a surprisingly high number of installations - especially older installations - have no insulation on valves and ‘awkward’ fittings and areas. Sometimes original valve insulation has been removed to carry out maintenance and not been replaced. In other situations, it had been damaged and in a great many, there had never been any valve insulation applied on the basis that it was a small area in comparison to the overall pipe area so the heat loss would be minimal, or that it could possibly impede valve operation and was therefore not worth installing.

Our engineers have often reported situations such as large steam and hot water valves exposed to the open air. The energy waste from these oversights is both alarmingly expensive and environmentally damaging. The series of images above illustrates the heat loss from an uninsulated standard valve in stark graphical terms.

Enersol valve jackets consist of a ready-made range to suit most standard fittings, and can also be customised to ensure maximum effectiveness as required. Although primarily used on the exposed heat-loss areas presented on valves, they can also be applied to a great many other situations such as flanges and heat exchangers.

They are manufactured from a range of materials for different applications ranging from high and very high temperatures down to low temperature and frost protection. They are easily installed with minimal effort. Removal and reinstallation is equally simple. Fastenings are usually via tied laces and/or hook and pin (similar to Velcro). All jackets are of the best quality available.

The jackets are constructed from the best avaialble materials with a Class O rating in accordance with BS 476 Parts 6 & 7.

Standard specification:
Temperature range: 65 to 250 C
Jacket & liner: Double-sided grey silicone coated glass cloth
Matting: 2.55mm/1” thickness of E class needle felt
Nomex thread
Kevlar tie cords
Hook and loop fasteners
High temperature nylon
This is the standard specification which is suitable for most applications. Alternative materials can be used to achieve higher temperature ratings.