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Supriya Prototech


Double Acting Pneumatic Actuator (WC)

Supriya Prototech
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Double Acting Pneumatic Actuator (WC)

Double acting linear pneumatic actuators are used for on/off or modulating control of any knife gate, wedge gate, globe or pinch valve utilizing compressed air, natural gas or nitrogen actuator supply.


SPECIFICATIONS


Type Double Acting Single Ended Linear Cylinder
Series WC
Type Double Acting Double Ended Linear Cylinder
Series WD
Maximum Operating Pressure 7bar
Temperature Range minus (-) 10°C to +80°C
Stroke Range up to 3000mm
Maximum Thrust (Single Stage) up to 550kN
Maximum Thrust (Double Stage) up to 1000kN
Control Type Throttling (Control Duty), On-Off Duty

FEATURES


  • Actuator Sizes from 4” bore to 44” bore  
  • Maximum Thrust up to 1000kN  
  • Actuators Comply to AWWA C541, PED 2014/68/EU, ASME Sec VIII 
  • Actuators are available with magnetic piston suitable for mounting reed switches.
  • Unique design of piston and piston rod engagement allows rotation of piston rod.
  • Supriya Double Acting Actuators are designed to operate horizontally or vertically. 
  • Versatile Manual Override options are available. 
  • Standard Actuators are designed for Maximum Operating Pressure 7bar and Operating Temperature Range minus (-) 10°C to +80°C
  • Adjustable cushioning at both ends will be provided upon request. 
  • High Pressure Actuators with 14bar operating pressure available on request. 
  • Complete Stainless Steel material of construction is also available.
  • Special Seals are provided for severe service applications.
  • ISO, MSS and Customised mounting arrangements are available.

BENEFITS


1) Performance Supriya WC Series actuators are designed and manufactured to offer a high level of efficient and reliable performance with reduced repair requirements and increased actuator life.
2) Protection and Approval Supriya Actuator provides protection certified to IEC IP67 as a minimum according to IEC/EN 60529 and CE certified under Pressure Equipment Directive PED 2014/68/EU.
3) Corrosion Resistance Composite cylinder barrel, Aluminium Anodized barrel, Carbon Steel with hard chrome plated and Stainless Steel barrel for extended service life.
4) Automation We also offer a wide range of automation options.
5) Product Life Our actuators are designed for 20years of service life.
6) SEALS Using standard O-rings and seals for both static and dynamic sealing makes Supriya double acting actuator soft parts lower cost and easier to find.

 

DESIGN FEATURES


Supriya Prototech
1. Piston Rod Seal Design
Piston Rod End Sealing is a combination of rod seal, wiper seal and bearing. Rod seal has a pressure sealing function and Wiper seal wipes the piston rod to clear dust and atmospheric contamination. Wiper seal also acts as secondary pressure sealing in-case of failure of Rod Seal. Bearing is Teflon Coated Self-lubricating type with carbon steel backup material, which reduces and wear and friction on the piston rod.
2. Piston Rod
Piston Rod material is ASTM A276 Gr. SS304 as a standard. It is grounded and polished to have better sealing life. Optionally we also provide Piston Rod material SS316, EN8D Ground and Hard Chrome Plated, or other material as required by customers. Rod end is female/male threaded with UNF/UNS/Metric Threading.
3. Piston
Piston is made up of Spherodized Graphite Iron IS1865 Gr. 600/3 or Steel Plate up to 10" Bore and Carbon Steel ASTM A216 Gr. WCB or Steel Plate for higher sizes.
4. Cylinder Barrel
Cylinder barrel can be supplied in Composite (FRP), Carbon Steel, Aluminium and Stainless Steel. Composite cylinder barrel is of high strength continuously wound glass filament in a matrix of high purity thermoset epoxy resin with inner lining of molybdenum disulphide. Carbon Steel barrels are inner surface honed and hard chrome plated for better durability and corrosion resistance. Aluminium barrels inner surface is anodized to achieve high strength.
5. Piston Seal
Piston seal is specifically designed to achieve effective bidirectional sealing and low friction. A wear strip is added on the outside diameter to protect the barrel from side load.
6. Tie Rods
Tie rods are made of Stainless Steel or Carbon Steel with zinc plating to avoid atmospheric corrosion. Front ends are extended with threads to fasten against the valve mounting flange.
7. Cylinder Ends / Housing
End Housing are Cast Iron, Spherodized Graphite Iron or Carbon Steel based on size. Castings are reinforced with internal ribs for additional strength. End Housing with Rolled Carbon Steel Plates or Stainless Steel Plates/Casting option also available.
8. Painting
Cylinder Ends/Housing are painted with epoxy jet black RAL9005 to achieve minimum 150DFT. Other painting options are also available on request.