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Check valves control the flow direction of fluids and are available in various configurations. Single-configuration check valves are designed to prevent back flow in only one direction. Double-configuration check valves control flow bi-directionally by diverting fluid to multiple outlets consecutively. Single-configuration check valves are normally closed, requiring positive pressure differential to allow flow, and are available with various termination options including luers, bond sockets, bond posts, and barbed designs. There are several opening pressure ratings from precision near zero to the anti-siphon valves which have higher opening pressures to prevent gravity induced flow. Medical-grade check valves are made with USP Class VI materials deemed safe for use with the human body. Medical-grade check valves reduce the risk of contamination, allow seamless priming, and offer higher flow rates. They are ideal for medical device designers focused on infusion, drainage and irrigation applications.
FEATURES & BENEFITS
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Designed to prevent back flow
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Materials meet USP Class VI & ISO 10993 criteria
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Air entrapment readily alleviated during priming
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Operate in any spatial orientation
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Low cracking pressures
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Barbed check valves with 3/32” (2.4 mm) & 1/8” (3.2 mm) single barb ends
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Bi-directional check valves for clean fluid transfer from supply to site
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Custom configurations
SPECIFICATIONS
Materials:
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Housing: MABS, SAN, & Polycarbonate
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Diaphragm: Silicone
Sterilization:
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Gamma radiation stable & EtO compatible
Single-Configuration Check Valves:
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Anti-Siphon Check Valves
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High-Flow Check Valves
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One-Way Check Valves
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Barbed Check Valves
Double-Configuration Check Valves:
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Double-Configuration Check Valves
Cracking Pressure:
≤ .174 psig (12 mb)
Max. Back Pressure:
73.000 psig - 116.030 psig (5 bar - 8 bar)
Flow Rate:
90 ml/min - 150 ml/min
Cracking Pressure:
≤ .290 psig (20 mb)
Max. Back Pressure:
14.500 psig (1 bar)
Flow Rate:
With water at a pressure of 100 mb; ≥ 1000 ml/min
With water at a pressure of 1 bar; ≥ 3000 ml/min
Cracking Pressure:
≤ .087 psig (6 mb)
Max. Back Pressure:
73.000 psig (5 bar)
Flow Rate:
≥ 150 ml/min
Additional configurations please contact Norda
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