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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:   PTFE VALVE WITH TWO 3/8" FEMALE NPT CONNECTIONS.
Catalog Number: 89052-618
Supplier: Ace Glass


Product available on GSA Advantage® Small Business Enterprise

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Description:   Outlet housing. Stainless steel cartridge. Red 3.2mm ball. For use with Hewlett-Packard* HPLC systems, models 1050, 1100.
Catalog Number: 77100-702
Supplier: Optimize



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Description:   Angle Valve for HPLC, 1/16 inch Fittings, 1/4-28, Material: Stainless Steel, Includes: Nuts and Ferrules, low internal volumes and are rated to 15,000 psi (103,421 kPa), two-piece stem assembly in which the rotating upper shank is coupled through a ball joint to a static lower stem
Catalog Number: 10853-750
Supplier: Avantor



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Description:   For select models from ABI/Kratos, Gilson*, HP/Agilent*, LDC/Milton Roy, PerkinElmer*, Integral 4000, Spectra-Physics*, Isochrom, P-Series, the SSI 200 Series Model 300, Varian* models 2010, 9000 Star, 9010, 9012, Waters* 100, 225uL systems. Stainless steel, 3.2mm.
Catalog Number: 77100-286
Supplier: Optimize



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Catalog Number: 77100-292
Supplier: Optimize



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Description:   Hitachi* 655, L-600, L-6200/L-6200A, L-7100 (LaChrom), LKB 2150, 2248, Shimadzu LC-600, LC-9A, LC10AD (and ESA 580), LC-10ADVP, LC-10AT, LC-10ATVP, Waters* 2690/Alliance, Varian 616. Stainless steel, 1.6 mm.
Catalog Number: 77100-278
Supplier: Optimize



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Description:   Ball Valve
Catalog Number: 10855-016
Supplier: Restek



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Description:   Ball Valve
Catalog Number: 10855-720
Supplier: Restek



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Description:   550 psi at 0.3 mL/min, 17 cm.
Catalog Number: 100358-608
Supplier: Pickering Labs



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Description:   1150 psi at 0.3 mL/min, 20 cm.
Catalog Number: 100358-606
Supplier: Pickering Labs



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