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Diaphragm Valve — Products & Sub-categories
Diaphragm Valve
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Diaphragm Valve

PTFE lined diaphragm valves for corrosive chemical and water treatment applications.

A flexible diaphragm separates the operating mechanism from the process medium, allowing the valve to control or isolate flow without conventional stem contact with the fluid. African Valve, a Diaphragm Valves manufacturer in Morocco provides valves that are particularly suited to corrosive, contaminated and abrasive media where minimizing fluid exposure to internal components is important.

Diaphragm Valve Features

  • Flexible diaphragm provides process-media isolation

  • Weir and straight-through body configurations

  • No conventional stem packing in the process flow path

  • Suitable for corrosive and contaminated fluids

  • Low internal dead volume in selected designs

  • Soft-lined and unlined construction options

  • Throttling and isolation capability

  • Replaceable diaphragm for maintenance

Technical Specifications

Parameter

Specification

Valve Type

Weir / Straight-Through

Size Range

DN15–DN300, depending on design

Pressure Rating

PN10–PN16 / Application Specific

Body

Ductile Iron / Cast Iron / Carbon Steel / Stainless Steel

Lining

PTFE / PFA / Rubber / Application-Specific

Diaphragm

EPDM / PTFE / NBR / Application-Specific

Bonnet

Cast / Forged

End Connection

Flanged / Threaded / Welded

Operation

Handwheel / Pneumatic / Electric

Flow Direction

Bidirectional, depending on design

Standards

EN 13397 / ASME B16.34 / Applicable Standard

Applications

Diaphragm valves are used in chemical processing, water treatment, wastewater treatment, mining, corrosive-fluid handling and industrial process systems where fluid compatibility and process isolation are important.

Materials

Body and lining materials are selected according to the process medium. Options can include ductile iron, cast iron, carbon steel, stainless steel, PTFE-lined and other corrosion-resistant constructions.

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