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Non-return valves

A non-return valve, also called a backflow preventer, ensures that gases or liquids only flow in one direction and are unable to flow back. Non-return valves open independently as soon as a fluid or gas flows. As soon as the direction of flow changes, the valve closes.

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16 Item(s)

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Disco non-return flap DN 25 PN 6-40 RK 86A

Disco non-return flap DN 25 PN 6-40 RK 86A

RK 86A
DN 25
Spring 5 mbar
GESTRA Disco non-return valve
to fit between flanges
EN 1092-1, form B1 PN 6-40 as well as
ASME B16.5 Class 150/300 RF
Materials:
Housing: 1.4408
Internals:
Stainless steels
metallically sealing

€156.75
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Disco non-return flap DN 20 PN 6-40 RK 86A

Disco non-return flap DN 20 PN 6-40 RK 86A

RK 86A
DN 20
Spring 5 mbar
GESTRA Disco non-return valve
to fit between flanges
EN 1092-1, form B1 PN 6-40 as well as
ASME B16.5 Class 150/300 RF
Materials:
Housing: 1.4408
Internals: Stainless steels
metallically sealing
DN 20
Spring 5 mbar
€143.25
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Disco non-return flap DN 15 PN 6-40 RK 86A

Disco non-return flap DN 15 PN 6-40 RK 86A

RK 86A
DN 15
Spring 5 mbar
GESTRA Disco non-return valve
to fit between flanges
EN 1092-1, form B1 PN 6-40 as well as
ASME B16.5 Class 150/300 RF
Materials:
Housing: 1.4408
Internals: Stainless steels
metallically sealing

€122.25
Learn More
Disco non-return flap DN 100 PN 40 RK 76

Disco non-return flap DN 100 PN 40 RK 76

Disco non-return flap DN 100 PN 40 RK 76
€291.00
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Disco non-return flap DN 80 PN 6-40 RK 76

Disco non-return flap DN 80 PN 6-40 RK 76

Disco non-return flap DN 80 PN 6-40 RK 76
€223.50
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Disco non-return flap DN 65 PN 6-40 RK 76

Disco non-return flap DN 65 PN 6-40 RK 76

Disco non-return flap DN 65 PN 6-40 RK 76
€189.00
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Disco non-return flap DN 50 PN 6-40 RK 76

Disco non-return flap DN 50 PN 6-40 RK 76

Disco non-return flap DN 50 PN 6-40 RK 76
€135.75
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Disco non-return flap DN 40 PN 6-40 RK 76

Disco non-return flap DN 40 PN 6-40 RK 76

Disco non-return flap DN 40 PN 6-40 RK 76
€117.00
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Disco non-return flap DN 32 PN 6-40 RK 76

Disco non-return flap DN 32 PN 6-40 RK 76

Disco non-return flap DN 32 PN 6-40 RK 76
€99.75
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Disco non-return flap DN 25 PN 6-40 RK 76

Disco non-return flap DN 25 PN 6-40 RK 76

Disco non-return flap DN 25 PN 6-40 RK 76
€77.25
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Disco non-return flap DN 20 PN 6-40 RK 76

Disco non-return flap DN 20 PN 6-40 RK 76

Disco non-return flap DN 20 PN 6-40 RK 76
€79.05
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Non-return valve 1"

Non-return valve 1"

Non-return valve RV561 size 1"
DIN3203-4. 1.4401/1.4408
Application range from -20 °C to 150 °C
€75.00
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Non-return valve 3/4"

Non-return valve 3/4"

Non-return valve RV561 size 3/4"
DIN3203-4. 1.4401/1.4408
Application range from -20 °C to 150 °C
€39.00
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Non-return valve 3/8"

Non-return valve 3/8"

Non-return valve RV561 size 3/8"
DIN3203-4. 1.4401/1.4408
Application range from -20 °C to 150 °C
€28.86
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Disco non-return flap DN 15 PN 6-40 RK 76

Disco non-return flap DN 15 PN 6-40 RK 76

Disco non-return flap DN 15 PN 6-40 RK 76
€68.00
Learn More
Non-return valve 11/4"

Non-return valve 11/4"

Non-return valve RV561 size 1 1/4"
DIN3203-4. 1.4401/1.4408
Application range from -20 °C to 150 °C
€82.50
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16 Item(s)

Set Ascending Direction