Van màng nối bích ASAHI - Type 14 (DN15 - DN100)

Van màng nối bích ASAHI - Type 14 (DN15 - DN100)

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
 
Typical Applications

  • Chemical Processing
  • Water & Wastewater
  • Landfills
  • Irrigation
  • Food Processing
  • Mining
 
Available Actuators

  • Series 92 Electric
  • Pneumatic

Options
  • PVDF gas barrier for aggressive fluids
  • 2" square nut
  • "T" operating nut for remote operation
  • Stem extensions (single and two-piece design)
  • Locking device for tamper-proofing
  • Manual limit switches for remote position indication by lights or for sequencing of other equipment
  • Pneumatic (all sizes) or electric (to 3") actuation


Thông số kỹ thuật

Sizes: 1/2" - 4"
Body Materials: PVC, CPVC, PP and PVDF
Bonnet Materials: PVC, PP, PPG and PVDF
Diaphragms: EPDM and PTFE
Also available in other materials such as nitrile and FKM