Diaphragm valves offer many body and elastomeric diaphragm material combinations. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure, which would normally clog most other valve designs, easily pass through a diaphragm valve. The valve has a top-entry design, allowing in-line maintenance; it is suitable for throttling and on/off service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically or pneumatically.

Features and Benefits

• Flanged (ANSI) face-to-face dimensions are equivalent to most commonly used metallic valves
• Rugged body and bonnet are of solid thermoplastic for maximum corrosion resistance
• Uniquely designed body and bonnet together with diaphragms of new sealing designs by computer dynamic analysis for superior sealing
• Weir design for excellent throttling
• Bubble-tight sealing, even in applications such as slurries or suspended particles
• Bonnet seals to protect internals from corrosive environments
• Built-in travel stop to prevent over-tightening or compressive strain on diaphragm
• Integrally molded bottom stand for simple yet firm panel mounting
• Indicator at the top for indication of valve position and prevention of over-tightening
• All valves with Teflon diaphragms come with PVDF gas barrier, which protects the EPDM backing from gas permeation
• 1/2" - 2" in bayonet structure to connect compressor and diaphragm - easy diaphragm replacement