OFD Welding Overflow Valve

DOFUN overflow valve is suitable for occasions with a large range of cooling capacity requirements. It is a valve designed to prevent system pressure fluctuations caused by low flow rate or low density. For the control of evaporation pressure, condensing pressure, exhaust pressure, etc., it has three application functions: relief valve, check valve and stop valve.

Applicable medium: R12, R22, R502, R134a, R404A, r507, R717, etc

The overflow valve is suitable for occasions with a large range of cooling capacity requirements. It is a valve designed to prevent system pressure fluctuations caused by low flow rate or low density. For the control of evaporation pressure, condensing pressure, exhaust pressure, etc., it has three application functions: relief valve, check valve and stop valve.

Applicable medium: R12, R22, R502, R134a, R404A, r507, R717, etc

Type

Nominaldiameter (mm)Size(mm)

φD φD1 L L1 H H1

OFD 20 26.9 38 45 60 250.5 49.5

25 33.7 38 45 60 250.5 49.5

DOFUN overflow valveTechnical Parameters

NominalPressure(PN) 4.0Mpa

TestPressure(PS) 6.0MPa

PressureAdjustment

Range 0.2MPa-0.65MPa.0.35MPa-0.8MPa

ApplicableTemperature -50°C~+150°C

ApplicableMedium Applicabletocommonnonlammable

refrigerantsincludingR717、

R22(dependentonsealingmaterial

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