Salient Features

• Meets manufacturing standard Design as per BS 5155 / API 609 (Category –A) / ANSI B 16.34 / BS EN 593 and inspection & Testing 

   standard as per API 598 / BS 6755 / ISO 5208 / BS - EN 12266 - 1 / DIN – EN - 588 – 1

• Face to Face Wafer short dimensions confirms to BS 5155 / API 609  AWWA C 504 / ISO 5752.

• A fully Universal Body design ensures suitable for mounting between all popular standards (Viz: - ANSI,BS,DIN,IS, JIS etc)

• Lining Standard as per ASTM F 1545

• Two – piece unique body energized seat design results in bi – directional bubble tight shut – off. 

• versatility of the valve is given by superior sealing principle

• They are used to shut – off, throttling and control of toxic and highly corrosive fluids, hazardous, pure liquids, gases and vapour.

• The PTFE Liner itself is recessed into the valve body for added stability and to prevent possible leakage due to cold flow or improper valve installation.

• A backup elastomer in lay which energizes the body liner and provides the PTFE Flex – memory to assure long – lasting seat performance.

• Primary seal is achieved at the disc hub and PTFE liner (Ball & Socket) through preloaded force

• Secondary stem sealing results from the use otan elastomer “O” ring which is tightly against the lined portion of the stem by the thrust ring.

• Triple stem seal system is uniformly loaded by a set of Belleville spring washers. Which maintains an active sealing force and self adjusts to changes in the system pressure and temperature

• This triple stem seal design has proven to remain tight under the high thermal cycling life.

• Body and stem to fully protected against potentially dangerous electrostatic discharges.

• Universal ISO 5211 mounting dimensions and quarter – turn design simplify valve actuation.

• Almost equal percentage characteristics.

• Single – Piece disc with stem design provides a very low friction valves and torques during opening and closing cycles. This design gives a high CV Value.

• Blow out proof stem.

• A one piece PFA encapsulated disc & Stem.

• Top – Bottom PTFE composite bearing is self lubricating, reduces friction.

Technical Data

• Size Range : 1.5”NB to 16”NB

• Pressure Range : 0 to 6 Bar

• Temperature Range : -60 °C to +200 °C

• Vacuum Resistance : Full (Vacuum up to 16 Bar)

• Tightness : BS-EN-12266-1

• Leakage Rate : D, Test Media: Gas

• Leakage Class : as per Class VI shut off.

• Body Material : S.G. Iron (NOD CI)/WCB/CF8/CF8M/CD4MCu+Lined.

• Lining Material : FEP / PFA / PVDF / Ceramic / Antistatic PFA Lining

• Spark Test : Thick liner 100% Inspected at 20 KVA

Optional Features

• Anti-static PTFE Seat & disc available on request

• Deep stuffing box design suit for gas services.

Applications

• Industrial Inorganic Chemicals

• Industrial Organic Chemicals

• Plant protective agent production

• Alkali’s & Chlorine

• Detergent production

• Water treatment

• Bromine Production

• Sulfur recovery

• Nitrogenous & Phosphorus Fertilizers

• Food Processing