Pegler Yorkshire straight coupling 15 mm. When heat is applied, the solder is released into the gap between the tube and the fitting, creating a reliable joint without the need for end-feeding additional solder. Suitable for use on hot and cold water services for potable water, in small bore and mini bore central heating systems, and in low pressure steam heating and pressurised unvented heating systems and in chilled water applications. Also suitable for sanitation services, compressed air lines, gas distribution systems and engineering pipeline services that convey liquids, oils, air and gases at temperatures up to 110C. Yorkshire copper solder ring system, offers a comprehensive and flexible range for all modern building services, providing easy, fast, cost effective and reliable joints. An ideal solution for domestic, commercial and industrial applications, Yorkshire copper combines high performance with a versatile system solution that is easy to lag and attractive when visible. Incorporating just the correct amount of lead free solder, simply add heat for a perfect joint every time. Yorkshire fittings are universal across domestic and light commercial from gas through heating to potable water. Available in 10mm, 15mm and 22mm sizes. BSI Kitemark approved (BS EN 1254-1) and WRAS approved. Attractive when visible. Quick and easy jointing, using just heat ensures a perfect joint. 25 year manufacturers guarantee. Min temperature at Max pressure: -40degC at 16 Bar. Max temperature at Max pressure: 110degC at 6 Bar. Suitable for domestic, commercial and gas applications.