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VÁLVULAS DIAFRAGMA

Las válvulas de diafragma ofrecen muchas combinaciones de materiales de diafragma de cuerpo y elastómeros, se pueden operar manualmente, eléctricamente o neumáticamente, son resistentes a la abrasión y no se obstruyen. Las suspensiones a baja presión que normalmente obstruyen la mayoría de los otros diseños de válvulas, pasan fácilmente a través de una válvula de diafragma. Ademas su diseño de entrada superior, permite el mantenimiento en línea, siendo adecuada para el servicio de estrangulamiento y ON / OFF en aplicaciones que van desde el tratamiento de agua hasta procesos de abrasión química

Type-14 True Union Valve (1/2" – 2")

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 slurrys.

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 3-layer diaphragm which includes the gas barrier layer, prevents this from ever occurring. The Type-14 diaphragm valve body is of 1-piece molded construction and is not fabricated. For maximum corrosion resistance, the Type-14 diaphragm valve’s rugged body and bonnet are manufactured of solid thermoplastic materials. The Type-14 diaphragm valve can be pneumatically or electrically actuated

Features/Benefits:

• True Union design permits installation or repairs without expanding pipeline

• Rugged square body and bonnet are of solid thermoplastic for maximum corrosion resistance

• Uniquely designed body and bonnet together with diaphragms of new sealing designs by the state-of-the-art computer aided analysis for superior sealing

• Weir design for excellent throttling

• Full vacuum rated

• Bubble-tight sealing, even in applications such as slurries or suspended particles

• Bonnet seals to protect internals from corrosive environments
• Adjustable travel stop to prevent diaphragm from being over-tightened

• Bayonet structure to connect compressor and diaphragm for quick maintenance

• Integrally molded bottom stand for simple yet firm panel mounting

• Indicator at the top for valve position

• PVDF gas barrier, which protects EPDM backing cushion from gas permeation, is standard for all valves with PTFE diaphragm

• Low profile

Specifications:

Sizes:

1/2" – 2"

Body Materials:

PVC, CPVC, PP and PVDF

Bonnet Materials:

PVC, PP, PPG and PVDF

End Connectors:

PVC, CPVC: IPS Soc. or Thr'd
PP, PVDF: IPS & Metric(DIN)
Socket, Threaded, Butt

Diaphragms:

EPDM and 3-Layer EPDM/PVDF/PTFE
Also available in Nitrile and FKM.

Operator:

Handwheel

Resources:

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