Danfoss | 148B5737
148B5737
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The 148B5737 check valve belongs to the CHV Check Valves series manufactured by Danfoss. It allows controlled one-way flow in hydraulic automation circuits where reverse leakage must be prevented. The connection ends are designed for butt weld joints, permitting direct integration into 50 mm pipe runs. Danfoss specifies steel as the connection material, ensuring mechanical strength and weld compatibility. The pipe interface follows ASME B 36.10M Schedule 40 dimensions so installers can match common process piping. Flow enters and exits on an angleway path, and an embossed one-way arrow on the body shows the permitted direction for quick visual verification. The valve handles fluids categorized in groups 1 and 2, supporting both non-flammable and flammable media commonly encountered in industrial systems.
The valve offers a flow coefficient of 53 gallons per minute, indicating low resistance at full opening. In metric terms the kv value is 45 cubic meters per hour, providing the same capacity figure for European sizing methods. Continuous service is rated up to 52 bar, allowing the unit to operate in high-pressure refrigeration or hydraulic lines. It opens reliably with a minimum differential of 0.04 bar, so the downstream circuit can be protected without significant pressure loss. Temperature limits range from -60 °C to 150 °C, enabling installation on lines that cycle between deep-cold and hot gas conditions. The casting weighs 2.9 kg net, while packaging brings the gross weight to 3.192 kg, data useful for handling and logistics planning.
Technical Specifications
Connection Material
Steel
Connection Size
50 mm
Connection Standard
ASME B 36.10M SCHEDULE 40
Connection Type
Butt weld
Flow Coefficient (cv)
53 gal/min
Flow Coefficient (kv)
45 m³/h
Flow Direction Indicator
Embossed 1-way arrow
Fluid Group
1, 2
Gross Weight
3.192 Kilogram
Max Working Pressure
52 bar
Min Odp
0.04 bar
Net Weight
2.9 Kilogram
Operating Temp Max
150 °C
Operating Temp Min
-60 °C
Valve Direction
Angleway
1620 Old Apex Road
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