Double Eccentric Geometry

Dual offset disc and shaft geometry lifts the disc clear of the seat throughout most of the travel — reducing seat wear, lowering operating torque and delivering bubble tight bidirectional shutoff designed for heavy duty service.

Bidirectional Bubble Tight Seal

ASME Class 150 bidirectional pressure rating with Rate A — no leakage per EN 12266-1 — suitable for flow control and tight shutoff in either flow direction without orientation restrictions.

API 609 Anti-Blowout Stem

Adjustable-type upper stem seal uses a CHEVRON pack of PTFE and Carbographite onwhich a stuffing box acts — anti-blowout system per API 609 prevents stem ejection under full line pressure.

Three End Connection Types

Wafer body type with 4 centering holes for easy mounting between flanges, or lug type with threaded or through lugs for use as a foot valve at the end of a pipeline — double flanged available on request.

PTFE + Carbographite Seat

Standard soft seat in PTFE reinforced with Carbographite provides chemical resistance and tight shutoff across the full -40°C to +220°C operating range.

Inconel 625 LCF Metal Seat Option

Metal-to-metal seated configuration using Inconel 625 LCF available on request — for high temperature, fire safe and abrasive service beyond the limits of soft-seated designs.

Fire Safe Certified

Certified to API 607 and ISO 10497 fire safe standards, with API 6FA available on request — maintains shutoff integrity in fire conditions for critical isolation duty in oil, gas and petrochemical service.

ATEX & SIL Certified

Certified to 94/9/CE ATEX for use in potentially explosive atmospheres and to SIL per IEC 61508 / IEC 61511 — suitable for safety instrumented systems in hazardous process areas.

Wide Body Material Selection

Body, disc and stem available in ductile iron, carbon steel and stainless steel — stem in AISI 304, AISI 316 or AISI 630 — covering standard, corrosive and high-strength application requirements.

Massive Size Range

Available from 3" up to an exceptional 56" (DN80–DN1400) — among the largest double offset butterfly valve ranges available, suitable for large bore pipeline and plant isolation duty.

Chemical & Petrochemical Duty

Engineered for chemical and pharmaceutical industries, solvent recovery systems and other applications with compatible materials — designed to up-to-date criteria for minimum maintenance.

International Certification Coverage

PED 97/23/EC, GOST-R and CU TR 10/32 certified — covering European, Russian and Eurasian Customs Union regulatory requirements for cross-border project specification.