Check Valve B1 
DN 15 - DN 600
PN 10 / PN 16
ANSI 125/15 lb/sq.in
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Range of application
- corrosive fluids (acids or alkalic solutions)
- solid-containing liquids (waste water, paper industry)
- purified water (drinking water und demineralized water)
- up to 16 bar / 80°C
Characteristics
- opens and closes smoothly and quickly
- high endurance
- prevents water hammer - even in the most difficult cases
- no maintenance required
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Check Valve B4
DN 50 - DN 250
PN 10
ANSI 150 lb/sq.in
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Range of application
- corrosive liquids (acids or alkalic solutions)
- water (drinking/industrial/demineralized water)
- up to 10 bar / 60°C
Characteristics
- very short face to face dimension
- opens and closes smoothly and quickly
- no maintenance required
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Check Valve B5
butterfly type, rubber lined
DN 300 - DN 800
PN 10
ANSI 150 lb/sq.in
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Range of application
- cooling water, seawater (even corrosive)
- corrosive fluids (acids and alkalic solutions)
- drinking water and waste water (without solids)
- up to 10 bar / 60°C
Characteristics
- very short face to face dimension
- prevents water hammer
- opens and closes smoothly and quickly
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Check Valve C1
with hydraulic brakes
DN 150 - DN 2500
PN 10 - PN 40
ANSI 150 - 600 lb/sq.in
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Range of application
- cooling water, waste water, drinking water (also corrosive and with solids contents)
- corrosive fluids (acids or alkalic solutions)
- hot water and other neutral fluids (also solids)
- up to 40 bar / 130°C
Characteristics
- closure damped by hydraulic damper
- perfectly rubber-, enamel- or epoxy-lined
- high endurance,
- no maintenance required,
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Check Valve C2
DN 300 - DN 800
PN 10 - PN 16
ANSI 125/150 lb/sq.in
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Range of application
- drinking water (raw water or treated water)
- cooling water (corrosive, also with solid contents)
- hot water or other liquids
- up to 16 bar / 130°C
Characteristics
- with and without damper
- easy running, low drag reduction
- high endurance,
- no maintenance required
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