Quality Pipe Supports (QPS) Ltd.
- +44 (0)1686 629898
- enquiries@qps.co.uk
- Mon - Thurs : 8:00 - 16:30 / Fri : 8:00 - 16:00
Quality Pipe Supports (QPS) Ltd. Variable Spring Units are devices used to support pipework which is subject to moderate vertical displacement due to temperature changes or subsidence.
It is recommended that a variable spring support unit should only be used when the load variation is less than 25% from the pre-set to operating load and displacements up to around 70 mm. Where the variability is more that 25% then a constant spring support should be considered. Practical and technical advice is available from any of our engineers at anytime.
All units are pre-set to their pre-set (cold load). Each unit is checked through the total working range and tested on a specialised test rig which is calibrated to national standards.
The variable spring support finish is available as follows:
The helical Spring coils are plastic coated, and the actual units are produced in high quality carbon steel; we also offer units manufactured from austenitic stainless steel and various alloy steels where required.
Where a spring unit is required which is not covered by the Quality Pipe Supports range, our technical department will design a unit for your particular requirement. All QPS variable spring support units are capable of supporting pipework that is subject to hydrostatic test loads up to twice the operating load.
The Quality Pipe Supports standard range of Variable Spring Supports are produced in four basic travel ranges , 35mm, 70mm, 140mm, and 210mm, and these travels stated represent the maximum working range of the spring units. – These are referenced QV1, QV2, QV3, and QV4 respectively. We recommend that the actual pipe load is correctly supported when the pipe is in its standard working position.
When ordering please specify:
Our Variable Spring Support range includes the following:-