DWYER MIN-SIZE FLOW SWITCH, BRASS BODY
 

• Designed to provide an inexpensive, reliable unit to monitor the presence or absence of flow in a system
• Used to monitor unattended equipment and protect it from costly damage.
• Utilizes a rugged, hermetically sealed reed switch which is encapsulated in a polypropylene switch housing that fits into a standard heavy duty leak proof brass body or optional 303 Stainless Steel body
• The patented switch adjustment allows the user to change the switch to Normally Open (NO) or Normally Closed (NC) in the field merely by loosening two screws
• The switch housing is located outside the process media, making switch change-over or maintenance easy without interruption of process flow
• A full size, trimmable stainless steel vane is provided with a removable laminated template. This template is calibrated for brass or ductile iron reducing tees and forged steel straight tee/bushing combinations. Allows for field installation in pipelines from 1/2" to 2" diameter
  
  Specifications:
  Functional Specifications
  Service:
  Compatible gases or liquids
  Wetted Material: Vane: 301 SS
  Body: Brass or 303 SS
  Pin and Spring: 301 SS, 302 SS, and 316 SS
  Magnet: Ceramic 8
  Temperature Limit: 200°F (93°C)
  Pressure Limit: Brass body: 1000 psig (69 bar), 303 SS body: 2000 psig (138 bar)
  Enclosure Rating: Weatherproof, meets NEMA 4X (IP66)
  Switch Type: SPST hermetically sealed reed switch. Field adjustable for normally open or normally closed
  Electrical Rating: 0.5 A @ 120 VAC
  1.5 A @ 24 VDC res
  0.001 A @ 200 VDC res
  Electrical Connections: 18 AWG, 19" (483 mm) long, PVC jacket. Rated 221?F (105?C)
  Process Connection: 1/2" male NPT standard. Contact factory for other options
  
  General Specifications
  Mounting Orientation: Switch can be installed in any position but the actuation/deactuation flow rates are based on horizontal pipe runs and are nominal values
  Set Point Adjustment: Vane is trimmable
  Weight: 5.5 oz (0.16 kg)