These valves allow free flow of oil in one direction and completely prevent the passage in the opposite direction.
The operation is completely automatic as the dynamic thrust of the flow provides for the opening and closing movements of the shutter. The closure is made by a conical coupling that guarantees a perfect hydraulic seal.
Each valve is available in 3 versions that are distinguished by the value of the opening pressure. The most common abbreviations and use are indicated in the table.
Passage (mm²): 28
for NON RETURN opening 0.4bar: DC-6F – Q (l/min) 10
for COUNTERPRESSION opening 4 bar: DC-6F-4 – Q (l/min) 12
for ASPIRATION 0.1bar opening: DCA-6F – Q (l/min) 2
Passage (mm²): 50
for NON RETURN opening 0.4bar: DC-8F – Q (l/min) 18
for COUNTERPRESSION opening 4 bar: DC-10F-4 – Q (l/min) 21
for ASPIRATION 0.1bar opening: DCA-10F – Q (l/min) 3.5
Passage (mm²): 78
for NON RETURN opening 0.4bar: DC-10F – Q (l/min) 30
for COUNTERPRESSION opening 4 bar: DC-10F-4 – Q (l/min) 35
for ASPIRATION 0.1bar opening: DCA-10F – Q (l/min) 5.5
Passage (mm²): 180
for NON RETURN opening 0.4bar: DC-15F – Q (l/min) 65
for COUNTERPRESSION opening 4 bar: DC-15F-4 – Q (l/min) 75
for ASPIRATION 0.1bar opening: DCA-15F – Q (l/min) 13
Passaggio (mm²): 290
for NON RETURN opening 0.4bar: DC-20F – Q (l/min) 105
for COUNTERPRESSION opening 4 bar: DC-20F-4 – Q (l/min) 125
for ASPIRATION 0.1bar opening: DCA-20F – Q (l/min) 21
Passage (mm²): 470
for NON RETURN opening 0.4bar: DC-25F – Q (l/min) 170
for COUNTERPRESSION opening 4 bar: DC-25F-4 – Q (l/min) 200
for ASPIRATION 0.1bar opening: DCA-25F – Q (l/min) 35
Passage (mm²): 680
for NON RETURN opening 0.4bar: DC-30F – Q (l/min) 245
for COUNTERPRESSION opening 4 bar: DC-30F-4 – Q (l/min) 285
for ASPIRATION 0.1bar opening: DCA-30F – Q (l/min) 50
Cylindrical gas mouths: 1/4”
Dimensions: 60 L (mm) – 19 Ch (mm) – 13 M (mm)
Weight (Kg): 0.10
Cylindrical gas mouths:: 3/8”
Dimensions: 70 L (mm) – 24 Ch (mm) – 13 M (mm)
Weight (Kg): 0.19
Cylindrical gas mouths: 1/2”
Dimensions: 77 L (mm) – 30 Ch (mm) – 15 M (mm)
Weight (Kg): 0.29
Cylindrical gas mouths: 3/4”
Dimensions: 90 L (mm) – 36 Ch (mm) – 17 M (mm)
Weight (Kg): 0.48
Cylindrical gas mouths: 1”
Dimensions: 106 L (mm) – 45 Ch (mm) – 19 M (mm)
Weight (Kg): 0.95
Cylindrical gas mouths: 1 1/4”
Dimensions: 120 L (mm) – 55 Ch (mm) – 22 M (mm)
Weight (Kg): 1.40
Cylindrical gas mouths: 1 1/2”
Dimensions: 140 L (mm) – 60 Ch (mm) – 24 M (mm)
Weight (Kg): 1.85
