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Modulating valve VC7931 HONEYWELL

Modulating Control Valves

Application

The VC7900 Series Modulating Control Valves provide precision flow control of hot or chilled water in various heating and cooling applications.
VC7931_catalog +(84) 839 606 568
Model: VC7931
Origin: Honeywell/USA-China
PN16, Size :DN15 – DN32

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Specification

Supply Voltage24Vac, 50/60Hz, Class 2 circuit
Label color codeBlue
Control Signal
  • Input voltage: 0/2 to 10 Vdc (actual 2 to 9 Vdc )
  • Input impedance: 47.5kΏ
Power ConsumptionMax. 4Watts (during valve position change)
Maximum duty cycle15%
Nominal Timing
  • opens in 120 sec. @ 60 Hz
  • Actual full stroke timing is 140 sec
Electrical TerminationWith integral 1 meter (nominal 39’’) leadwire cable
Temperature
  • Ambient Operating: 0 to 65 ℃ (32 to 150 ˚F)
  • Ambient Storage :-40 to +65 ℃ (-40 to 150 ˚F )
Fluid temperatures1 to 95 ℃ (34 to 203˚F)
Pressure Rating
  • Static: 20 bar (300 psi)
  • Burst: 100 bar (1500 psi)
Valve Material
  • Body: Bronze
  • Cartridge: RytonTM and NorylTM
  • O-ring seal: EPDM rubber
  • Stem: Stainless steel
Pressure DifferentialMax. 4 bar (60 psi)
 

Feature

Brass body
O-ring seal: made of EPDM rubber
Stem: made of Stainless steel
   

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