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Type-14 Flanged Diaphragm Valve (1/2″ – 4″)

The type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and 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.

Asahi’s type-14 diaphragm 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. The type-14’s three-layer diaphragm, includes a gas barrier layer, which prevents this from ever occurring. The Type-14 diaphragm valve body is of one-piece molded construction and is not fabricated. For maximum corrosion resistance, the type-14 diaphragm valve‘s rugged body and bonnet are manufactured from solid thermoplastic materials. The type-14 diaphragm valve can be pneumatically or electrically actuated.

Resources

Ideal Applications Include: Throttling, slurry lines, chemical processing, bleach plants, aquariums, mining, water treatment, landfills, swimming pools, semiconductor manufacturing

Specifications

Sizes:

1/2″ – 4″

Body Materials:

PVC, CPVC, PP and PVDF

Bonnet Materials:

PVC, PP, PPG and PVDF

Diaphragms:

EPDM and three-layer EPDM/PVDF/PTFE
Also available in Nitrile and FKM

End Connection:

Flanged

Operator:

Handwheel