Thermostatic Expansion Valve RFGB Series

ref. Thermostatic Expansion Valve RFGB Series

RFGB series thermal expansion valves are used to adjust supply volume of refrigerant in the evaporator which can provide injection of various refrigerants under all working conditions. They can also meet the requirements of freezers, ice makers, dehumidifiers as well as refrigerating systems and air conditioners in various vaporizing temperature ranges.



Air conditioning Commercial Refrigeration

Features

  • Compact structure
  • Thermal bulb utilizes cross injection technology, and the whole vaporizing temperature range shares the same superheat degree
  • Valves with MOP function can be provided to prevent damage to compressor motor caused by excessive evaporation pressure
  • Wide vaporizing temperature range

General specifications

  • Applicable refrigerant: R22, R290, R134a, R404A, R507 and R407C etc.
  • Applicable medium temperature: -40ºC (-40ºF) to 70ºC (158ºF)
  • Applicable ambient temperature: -35ºC (-31ºF) to 55ºC (131ºF)
  • Relative humidity: 0-100%RH
  • Maximum operating pressure: 3.5MPa (35 bar) based on refrigerant used
  • Installation position: -  Preferably valve head upwards
  •        - Flow direction from inlet A to outlet B
  • Certifications: UL/CSA and PED declaration 

Nominal Capacity

No. NominalCapacity US.R.T NominalCapacity kW
R22 R407C R404A/R507 R134a R22 R407C R404A/R507 R134a
1 0.35 0.38 0.25 0.22 1.2 1.3 0.9 0.8
2 0.7 0.76 0.5 0.44 2.5 2.7 1.8 1.5
3 1 1.1 0.7 0.63 3.5 3.9 2.5 2.2
4 1.5 1.6 1 0.94 5.3 5.6 3.5 3.3
5 2 2.2 1.4 1.3 7 7.7 4.9 4.6

Note?dNominal capacity is measured under nominal working condition: condensating temperature 38?, refrigerant temperature before the valve 34ºC, vaporizing temperature 5ºC, static overheat 3.5ºC, operating superheat 4ºC.

Dimensions

Thermal Expansion Valve RFGB Series . Dimensions

Inlet A Outlet B
mm in mm in
6 1/4 10 3/8
10 3/8 12 1/2