Other tests include subjecting pipes and fittings to fluctuating temperatures and pressures, in excess of the operating pressure, as well as products being verified for resistance against water hammer, force, impact and chemical exposures.
Lee Flood, Director of Quality at John Guest, commented: “John Guest products have long been synonymous with quality and our guarantees reflect this. Not only are our products designed and developed by our own experts here in the UK, but we have also invested heavily in technology and expertise to ensure that quality is built in at every stage of manufacture.
“Our push-fit plumbing range meets British and many other national and international standards but our testing techniques and product experience has now given us the confidence to bump our guarantee up from 25 years to 50 years.”
The 50-year guarantee is said to be against material and manufacturing defects for products in John Guest Speedfit’s core plumbing range. It will also apply to Speedfit Plumbing and Heating Products used in normal domestic cold and hot water supply and central heating systems installed in the UK, in accordance with John Guest’s published Technical Checklist and Instructions.
Products covered include:
- Plumbing Fittings Range (product codes prefixed PEM & PSE)
- Plumbing Manifolds (product codes prefixed SFM)
- Pipe Inserts (product codes prefixed TSM & STS)
- BPEX & BPB Barrier Pipe
- Brass Threaded Adaptors and Couplers
