Danfoss | 148B5678
148B5678
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The 148B5678 check valve belongs to the CHV Check Valves series and is manufactured by Danfoss for hydraulic automation circuits where reverse flow must be blocked. Its connections are made of stainless steel, providing corrosion resistance in aggressive media. A connection size of 15 mm matches common small-bore process lines, while the butt weld ends create a permanent, leak-tight joint with adjoining pipework. The flow path is straightway so pressure loss through the body remains low. The valve begins to open at a differential pressure of 0.04 bar; this low threshold supports sensitive low-pressure startup sequences. A Kv value of 4 m³/h defines the expected flow capacity at a 1-bar drop, aiding system sizing calculations. Operation is maintained down to −60 °C, allowing service with refrigerated or cryogenic liquids.
Dimensional conformity to EN 10220 ensures the welded ends mate accurately with standardized tube tolerances. The valve tolerates fluid temperatures up to 150 °C, enabling use with hot oils or steam, and its maximum working pressure of 52 bar suits medium-pressure hydraulic lines. A gross weight of 1.718 kg indicates shipping mass, while the net weight of 1.45 kg represents the product itself for load assessment on pipe supports. Internal volume is 2.387 L, information used to estimate fluid inventory during maintenance. External surfaces are finished in a reddish brown paint that offers basic corrosion protection and color coding within installations.
Technical Specifications
Connection Material
Stainless steel
Connection Size
15 mm
Connection Standard
EN 10220
Connection Type
Butt weld
Direction
Straightway
Gross Weight
1.718 kg
Kv Value
4 m³/h
Max Temp
150 °C
Max Working Pressure
52 bar
Min Opening Diff Pressure
0.04 bar
Min Temp
-60 °C
Net Weight
1.45 kg
Paint Color
Reddish brown
Volume
2.387 L
1620 Old Apex Road
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