Danfoss | 148B5687
148B5687
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The 148B5687 check and stop valve belongs to the SCA Check and Stop Valves series from Danfoss and is applied in hydraulic automation to block or permit flow in one direction. Its angleway body diverts the medium through 90 degrees, which helps conserve space in piping layouts. A 40 mm butt-weld inlet lets fabricators join the valve directly to process tubing without threaded fittings, and the connection is made of stainless steel for corrosion resistance. The valve passes 30 m³/h at a 1 bar differential (kv), a capacity that supports moderate circulation rates. Installation orientation is guided by an embossed one-way arrow on the housing that shows the correct flow path.
The welding ends follow ASME B 36.19M Schedule 40 wall thickness so installers can match standard pipe dimensions. Operating limits span from −60 °C to 150 °C, enabling service in low-temperature refrigeration circuits and high-temperature hydraulic lines. A maximum working pressure of 52 bar allows use in high-pressure systems, while the check element begins to open at 0.04 bar to minimize startup restriction. Compatibility with fluid groups 1 and 2 widens the range of allowable liquids and gases. The valve’s net weight of 3.488 kg supports manual handling during assembly and maintenance.
Technical Specifications
Connection Material
Stainless steel
Connection Standard
ASME B 36.19M SCHEDULE 40
Direction
Angleway
Flow Coefficient (kv)
30 m³/h
Flow Direction Indicator
Embossed 1-way arrow
Fluid Group
1, 2
Inlet Connection Type
Butt weld
Inlet Size
40 mm
Max Temperature
150 °C
Max Working Pressure
52 bar
Min Opening Pressure
0.04 bar
Min Temperature
-60 °C
Net Weight
3.488 Kilogram
Valve Function
Check and stop valve
1620 Old Apex Road
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