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YT-520 Snap Acting Relay

Brand: Rotork YTC
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The YT-520 Series is a snap-acting relay that senses supply pressure and changes the direction of the supply air flow when the supply pressure level is lower than the set pressure level. 

By using a snap-acting relay, the valve system can “fail freeze” as the supply pressure fails.
Features
  • Switches pressure flows when abnormal pressure detected 
  • Stem can be extended and connected 
  • Able to lock actuator in its position 
  • Responses to very small changes to supply pressure with high accuracy 
  • Enhanced versatility by having different material for body and options 
  • Internal 100-mesh screen filters small dust entering into the product
The YT-520 Series is a snap-acting relay that senses supply pressure and changes the direction of the supply air flow when the supply pressure level is lower than the set pressure level. 

By using a snap-acting relay, the valve system can “fail freeze” as the supply pressure fails.
Features
  • Switches pressure flows when abnormal pressure detected 
  • Stem can be extended and connected 
  • Able to lock actuator in its position 
  • Responses to very small changes to supply pressure with high accuracy 
  • Enhanced versatility by having different material for body and options 
  • Internal 100-mesh screen filters small dust entering into the product
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Specifications

Brand

Ambient Temperature Range

  • -20° to 120° C (-4° to 248° F)
  • -20° to 70° C (-4° to 158° F)
  • -40° to 70° C (-40° to 158° F)

Enclosure, Body Material

  • Die Cast Aluminum

Flow Capacity

  • 0.9 Cv

NPT Connection

  • 1/4” NPT Female

Pressure Range

  • bar: 1.4 to 7
  • kPa: 140 to 700
  • MPa: 0.14 to 0.7
  • psig: 2 to 101

Supply Pressure - Maximum

  • bar: 10
  • kPa: 1,000
  • MPa: 1
  • psig: 145
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