Description
Type-342 Diaphragm Valves (PVDF, PPn, PP and ECTFE)
Purad UHP PVDF is the premier product for high purity water systems. The SOLEF PVDF resin is carefully selected and Asahi/America's stringent cleanroom manufacturing process provides the cleanest piping material available. Purad is the best choice for systems with critical requirements for water quality.
Ideal Applications Include:
Islolation and Throttling Valves, UPW, WFI, RO/DI Systems, Semiconductor, Photovoltaic, Pharmaceutical, Biotech, Institutional, Laboratory Research, Nanotech
Features & Benefits:
- Valves are supplied with PTFE backed EPDM diaphragm seals
- Valves are cleanroom produced and assembled
- T-342 valves come standard with integral lockout device to prevent unauthorized cycling
- All valves are 150 psi rated at 68 degrees F
Series 79 Actuators
Series 79 pneumatic actuators are sized to operate on 80 psi of air pressure, and can be sized to operate on different air pressures upon request. Actuators are available as either air-to-air (double acting) or air-to-spring (single acting), with air to spring units having the option to fail either open or closed. The actuators are mounted on the valve through a coupling and bracket set up with an ISO bolt pattern. Units have a visual position indicator and operate as quarter turn actuators. Automation can be performed through optional equipment such as solenoids, positioners or BUS systems.
Features & Benefits:
- Actuator body and end caps constructed of glass-filled polyamide or cataphoresis coated aluminum (depending on valve size)
- Double piston double rack and pinion
- ISO valve mounting pattern
- ISO female star drive output
- NAMUR accessory mounting pattern
- Operates on 80 psi (recommended) to 120 psi (maximum) filtered air supply
- Spring return models have cataphoresis coating or chromium passivation for spring protection
- Available in air-to-air or air-to-spring models
- Position indication through visible indicator knob and flats on actuator shaft
- Actuator shaft constructed of cataphoresis coated steel or stainless steel with double O-ring seals top and bottom
- End position adjustable travel stops
- Polyacetal or PTFE/bronze piston guides
- Self-lubricating BUNA-N O-ring seals
- -25 degrees F - 125 degrees F temperature range
- 1/4 in. NPT air connections
Note: Actuated and Flanged connection valves are special order with a 3-4 week average lead time.
Asahi Part Numbers: 1339005, 1339007, 1339010, 1339012, 1339015, 1339020, 1340005, 1340007, 1340010, 1340012, 1340015, 1340020, 1349005, 1349007, 1349010, 1349012, 1349015, 1349020