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 & Stem Sealing Design

Laminated reselient seal provides a uniform radial compression of the Seal ring when torque is applied to the shaft. The Seal Ring can be provided in Graphite or PTFE depending on the application

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, EN ISO 5211