Valves & Actuation
![Norwesco Bolted Ball Valves: Manually Actuated - PP \ EPDM](/sites/default/files/styles/list/public/images/product/5e2f9076224d81df73e0b7f55a0e/708_40.jpg?itok=fKfsVhpD)
Manufactured from glass reinforced polypropylene for strength and durability-will never rust or corrode. Self-aligning ball rotates freely against Teflon® seats. Unique body-to-flange design allows for low torque on/off operation. Viton® o-ring stem seal and EPDM o-ring body seal. Available with blue Norwesco handle or blank yellow handle. Pressure rated at 125 PSI @ 70°F. All valves tested by air pressure under water.
![Norwesco Single Union Ball Valves: Manually Actuated - PP \ EPDM](/sites/default/files/styles/list/public/images/product/5e2f9076224d81df73e0b7f55a0e/Single%20Union%20Ball%20Valves%20with%20EPDM%20Seals.jpg?itok=-EvM_Duj)
![Plast-O-Matic BSDA Series: Air-Operated Diaphragm Valve Fail Close Normally Closed - PVC \ PTFE](/sites/default/files/styles/list/public/images/product/10c5c9fc4a494a54c3bb7db9fa01/POM%20BSDA.jpg?itok=9cTbM-6q)
Air-Operated Diaphragm
Series BSDA miniature air-operated diaphragm valves are designed for pressure applications with highly-corrosive or ultra-pure liquid systems when space is critical. The valve is ideal for a broad range of industrial applications, from electronics to chemical plants, commercial laundries, car wash operations etc. The standard valves are air pressure-to-open with spring return-to-close. Liquid line pressure assists in opening the valve. Not designed for vacuum service.                                                                                                         Â
Normally-Closed Operation
A 3-way air solenoid valve connection to the 1/8" NPT port is required to actuate the diaphragm valve. When air pressure (40 to 100 psi) is applied, the diaphragm valve opens and, when removed, spring force closes the valve.
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Materials of Construction
With the series BSDA air-operated diaphragm valves, the standard diaphragm material is a combination of PTFE on the wetted side backed up with Viton® for strength and flexibility. Body materials available are PVC, CPVC, Polypropylene, PVDF and Teflon®.
The upper air section is always PVC.
![Plast-O-Matic CKS Series: Automatic - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/65b80b9c34b53a2f0619df63c5c5/CKS%20Series%20Check%20Valve.jpg?itok=MSwzOZgL)
![Plast-O-Matic CKS Series: Automatic - PVC \ FKM](/sites/default/files/styles/list/public/images/product/65b80b9c34b53a2f0619df63c5c5/CKS%20Series%20Check%20Valve_0.jpg?itok=1YZNKjV5)