KF Valves, a brand of CIRCOR Energy, has made an expansion of its capability to manufacture stem extensions and reduced lead times to serve the customers better. The stem extension offerings are available for Series P3/M3 and Welded Body valves, and is completely plumbed and ready for installation. Special valve coatings are also available for underground installation where maximum corrosion protection is required.
The applicable standards for KF stem extension design include, API 6D – 24th Edition: ISO 9001 – 2015, ASME SEC VIII Div. II – 2013: NACE MR0175:2009 – SOUR Region 3 and ISO 5211 – 2001, 1st Edition. The Stem extension housing is provided with an extension line which will prevent the pressure build-up in the event of stem or bonnet seal leakage. Some of the features of KF steam extension design include, Low Temp. Carbon Steel ASTM A322-8620 (UNS G86200) for the Drive Train Components, ASTM A106 or API 5L Grade PSL1 or PSL2 Pipe material for Extension lines, and has easy access to all auxiliary connections – Drain, Vent, Seat and Stem Sealant.