Design & Construction features
PHBB can offer a wide variety of Body, Disc and Stem materials to suit specific customer requirements viz. Carbon steel, Stainless Steel, Duplex and Super Duplex, Aluminium Bronze, Monel, Inconel and other super Alloys. Materials meeting NORSOK M650 specification can be supplied with QTR.
Body Sealing and Stem Sealing Design
Self-lubricating bearings provide excellent stem support and shaft alignment. Bonded to the interior of the stainless steel bearing is PTFE impregnated with woven fibreglass.
Design and Manufacturing Standards
PHBB Double offset Butterfly valves, meet the following
International Standards : API 609 Category B, EN 593,
ASME B16.34, ASME B16.5, ASME B16.47, ASME
B16.10, EN 12516-1 & 2, ISO 5211