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Non Return Valves

106  results were found
Non Return Valves

Our non-return valves protect tubing and vacuum systems from backflow when pressure falls in the system. Sealing system eliminates backflow, helping to prevent upstream contamination or damage. These valves are compatible with a wide range of systems, all with different specific levels when dealing with the three main pressure values: cracking pressure, maximum pressure, and back pressure created. Durable steel or plastics are used in all designs, with spring loaded, creating a quality product that will remain independent for years with no need for replacement.


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Description:   This polypropylene non-return valve protects tubing and vacuum systems from back flow when pressure falls in the system. The recommended working pressure range for this valve is 1.0 to 28.4 psi. Nominal O.D.: 8/9/10mm. Crest O.D.: 7.8/10.0mm.
Catalog Number: 46600-040
Supplier: VWR International



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Description:   Back pressure regulator
Catalog Number: 76399-160
Supplier: HICHROM LIMITED



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Description:   Cs/6, Sp/1
Catalog Number: 71000-282
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   PTFE VALVE WITH ONE 1/4" MALE MALE-LUER CONNECTION AND ONE 1/4" FEMALE NPT CONNECTION.
Catalog Number: 89052-608
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   CONNECTION VALVE UNIVERSAL PTFE.
Catalog Number: 89077-466
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   8-WAY VALVE TEFZEL OMNIFIT.
Catalog Number: 89077-464
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   3-WAY TEFZEL VALVE OMNIFIT.
Catalog Number: 89077-462
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   Cs/6, Sp/1
Catalog Number: 71000-286
Supplier: Ace Glass


Small Business Enterprise

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Description:   PTFE Stopcock Valve, Two Way, 1/4" Female NPT
Catalog Number: 10099-050
Supplier: Ace Glass


Small Business Enterprise

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Description:   Cs/6, Sp/1
Catalog Number: 71000-288
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   Cs/6, Sp/1
Catalog Number: 71000-284
Supplier: Ace Glass


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Description:   PTFE Stopcock Valve, Two Way, 1/2" Female NPT
Catalog Number: 10099-058
Supplier: Ace Glass


Small Business Enterprise

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Description:   Tefzel Pk2
Catalog Number: 89097-278
Supplier: Ace Glass


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Description:   PTFE Stopcock Valve, Two Way, 3/4" Tube Compression
Catalog Number: 10099-064
Supplier: Ace Glass


Small Business Enterprise

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Description:   PTFE Stopcock Valve, Two Way, 1/2" Tube Compression
Catalog Number: 10099-060
Supplier: Ace Glass


Small Business Enterprise

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Description:   PTFE Stopcock Valve, Two Way, 3/8" Female NPT
Catalog Number: 10099-054
Supplier: Ace Glass


Small Business Enterprise

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