PLASTOMATIC AIR OPERATED DIAPHRAGM VALVES Diaphragm Valves
BSDA Series
Product Description:The Plastomatic BSDA Diaphragm Valve is designed for pressure and drain applications processing ultra pure water and highly corrosive chemicals. The valve is ideal for a wide range of uses, from pharmaceutical to semiconductor in PTFE, Kynar PVDF or Polypro body materials; car washes to chemical plants in the lower cost Geon PVC body materials, and higher temperatures in those applications with Corzan CPVC bodies.
For high purity applications such as deionised water, Series BSDA provides the ultimate in non-leaching, contamination-free sealing. The standard valves are air pressure to open, with "fail safe" spring return to close. Because the diaphragm is attached to the piston, no inlet pressure is required to assist with opening.
The BSDA is not designed for vacuum service.
Materials of construction: Wetted body materials available standard are Geon® PVC, Corzan® CPVC, PTFE, Kynar® PVDF, and Natural Unpigmented Polypropylene. Compact air cylinder head standard material is Geon PVC, regardless of the body material. Seals used for cylinder are Buna-N. Spring is steel; fasteners are stainless steel.
Key Plastomatic BSDA Series features:
- Compact size with PTFE diaphragm construction.
- No metal in contact with liquid.
- Various end connections available.
- Million cycle non-sticking design.
- Normally closed design
- ("fail-safe" spring to close; air to op
