Industrial Plastic Diaphragm Valves

From Asahi America
Asahi industrial plastic diaphragm valves offer many combinations of body and elastomeric diaphragm materials and are abrasion resistant / non-clogging.

When the diaphragm — connected to the valve stem by a compressor — is pulled from the bottom of the valve body, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure which would normally clog many other valve types, easily pass through a diaphragm valve.

Asahi diaphragm valves isolate the bonnet and working parts from the line fluid; making only the body diaphragm materials a consideration for application compatibility. Furthermore, the valve is a top-entry design, allowing in-line maintenance.

The valve is suitable for throttling and on/off service in applications ranging from water treatment to chemical abrasion processes. Asahi diaphragm valves can be operated manually, electrically, or pneumatically.
Asahi Type 57P Butterfly Valve
Asahi Type 57P Butterfly Valve

Asahi Type 14 Industrial Plastic Diaphragm Valve

The Asahi Type-14 diaphragm valve is available in PVC, CPVC, PP and PVDF and features improved body to bonnet sealing performance, visual position indication, a weir design for excellent throttling capabilities and a built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurries.

The valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite. These aggressive chemicals produce an off-gas that can permeate the typical laminated PTFE layer and actually become delaminated in this highly corrosive environment leading to a potentially hazardous situation.

For maximum corrosion resistance, the Type-14 diaphragm valve‘s rugged body and bonnet are manufactured from solid thermoplastic materials and can be pneumatically or electrically actuated.

Technical Specifications

Sizes0.5 – 4inch
BodiesUPVC, CPVC, PP & PVDF
DiaphragmEPDM & 3-Layer EPDM/PVDF/PTFE
Nitrile & FKM also available
Body TypeTrue Union (0.5 – 2inch)
Flanged (0.5 – 4inch)
End ConnectorsPVC, CPVC: IPS socket, flanged or threaded
PP, PVDF: IPS & metric (DIN) socket, threaded, butt or flanged
BonnetPVC, PP, PPG and PVDF
OperatorHandwheel

Downloads

For more information visit the Asahi America website.

Asahi Type 15 Diaphragm Valve

Asahi Type 15 Diaphragm Valve

The Asahi Type 15 Diaphragm Valve is perfect for flow control and use with viscous/slurry lines due its high resistance to clogging. The valve has a uniquely designed body and bonnet, as well as a diaphragm with a sealing design manufactured with computer aided analysis for superior sealing.

Technical Specifications

Sizes5 – 6inch
BodiesUPVC, PP & PVDF
DiaphragmEPDM, 3-Layer EPDM/PVDF/PTFE, Nitrile
Body TypeFlanged
BonnetPVC, PP, PPG and PVDF

Downloads

For more information visit the Asahi America website.

Asahi Type G Diaphragm Valve

Asahi Type G Diaphragm Valve

The Asahi Type G is the largest diaphragm valve in Asahi’s range and is available in 8 or 10 inch sizes. It is perfect for flow control and use with viscous/slurry lines due its high resistance to clogging.

Technical Specifications

Sizes8 or 10inch
BodiesUPVC, PP & PVDF
DiaphragmEPDM and 3-Layer EPDM/PVDF/PTFE
Also available in Nitrile
Body TypeFlanged
BonnetPVC, PP, PPG and PVDF

Downloads

For more information visit the Asahi America website.

Benefits of Industrial Plastic Valves

  • Low thermal conductivity.
  • Smoother than metal for better flow rates.
  • Made to last longer than metal, even when in contact with corrosive liquids.
  • Chemically resistant.
  • Corrosion resistant – much more so than metals.
  • Light in weight when compared to metals.
  • Lower in total material and installation costs than conventional metal systems.
  • More efficient than metals, especially in operational efficiencies including chemical inertness, resistance to permeation and impurity absorption, abrasion and freeze resistance.
Asahi 3 Year Warranty

Asahi Valves 3 Year Manufacturer Warranty

Asahi valves from Fusion come with a 3 year manufacturer warranty; longer than most competitor brands in Australia! For information about the Asahi Valve Warranty, please contact us.
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