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Ashwathi Controls · FLOEC® Valve Family

Diaphragm Valve

Manufactured to BS - 5156 for bubble-tight sealing and long cycle life.

FLOECDiaphragm Valves are designed and manufactured as per BS 5156. They are widely utilized in water treatment plants, fertilizer & petrochemical industries, pharmaceutical units, chemical process units, refineries and power plants. They are most appropriate for positive pressure and high vacuum conditions. An extensive range of materials are available to handle almost all operations within its pressure-temperature limitations.

Diaphragm Valve - Diaphragm Valve Electric Actuator Operator2 Configurations Available
Available Configurations & Builds

Diaphragm Valve Electric Actuator Operator · Diaphragm Valve Manual Operator with Open-Close Indication

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Engineering & Application

Precision engineered for zero passing & heavy service.

Total wet area and working parts are kept from coming in contact with the working media by appropriate lining with different qualities of Rubber; PTFE/PFE etc. to make it certain that it handles extremely corrosive fluids efficiently and safely.

Maintenance of these Valves is extremely simple. By dismantle the Bonnet from the Body, the whole Trim Assembly can be taken out for maintenance while the Body will remain in the Pipeline. Hence the design allows online maintenance to save time and energy. Its linear flow characteristics, makes it perfect for throttling or modulating operations. On/off and control automation is supplied with Pneumatic Actuators or Cylinders.

FLOEC Diaphragm Valves are supplied in a wide-ranging material like Cast Iron, S.G. Iron, Cast Carbon Steel, and Stainless Steel of all grades, High Alloy Steels like Ally-20, CD4MCu, and Hastelloy etc. Size range starts from 15NB to 250NB and pressure rating range from ASME 125# / 150# / PN.

Key Capability Highlights

  • Size Coverage: 15 NB through 250 NB
  • Pressure Range: ASME 125/ 150# / PN10 / PN16 / PN25
  • Compliance Standard: BS - 5156

100% factory hydrotested to API 598 / BS 6755 Part-I. Available in customized metallurgy, port openings, and automated pneumatic/electric actuator assemblies.

Technical specifications

Diaphragm Valve Engineering Parameters

13 parameters
ParameterSpecification Range & Standards
Size Range15 NB through 250 NB
Pressure RatingASME 125/ 150# / PN10 / PN16 / PN25
TypeScrew Down - Fully Rubber Lined / Unlined Body
End ConnectionFlanged and Threaded
OperationHand Wheel / Manual Gear / Electric Motor Actuator
Port OpeningFull
SeatSoft Rubber / PFA / Integral
DiscEquivalent Body Material with Rubber Lining / PTFE Lamination
Gasket & PackingNA
MOCRefer Material Chart
Design CodeBS - 5156
TestingAPI - 598 / BS 6755
Inspection3rd Party / Client / Manufacturer
Metallurgical Versatility

Customized for your line fluid & operating temperature.

Available in standard Cast Carbon Steel (WCB/WCC), Austenitic Stainless Steels (SS304/SS316), Duplex/Super Duplex, Hastelloy, Alloy 20, and specialized soft/metal seats.

Cast Carbon Steel WCB/WCCStainless Steel SS 304 / 304LStainless Steel SS 316 / 316LDuplex Stainless Steel (2205)Super Duplex SS (2507)Hastelloy B / CAlloy 20 / Monel 400Copper Alloys & BronzeSG / Ductile IronHigh-Tensile Cast Iron