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Non Return Valves

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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, creating a quality product that will remain independent for years with no need for replacement.


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Catalog Number: (46600-040)

Supplier:  VWR International
Description:   This polypropylene non-return valve protects tubing and vacuum systems from back flow when pressure falls in the system.
Supplier:  DWK Life Sciences (KIMBLE®)
Description:   One-Way valves are designed for use in making connections between the tubing and the end fittings of CHROMAFLEX® columns.
Supplier:  Restek
Description:   Inlet Check Valve, for HPLC Systems, Model Number: LC-10AT, LC-10ATvp^
Supplier:  Optimize
Description:   Preassembled check valve cartridges conveniently insert into a reusable housing and function in either the inlet or outlet position
Supplier:  Restek
Description:   Parker's fittings are ideal for installing new equipment, modifying existing instrumentation, or replacing worn connections.
Supplier:  Restek
Description:   Our valves have low internal volumes and are rated to 15,000 psi (103,421 kPa).
Supplier:  Restek
Description:   Inlet Check Valve Assembly, for HPLC Systems, Model Number: M6KA, 510, 515, 590, 600, 610, LC Module 1
Supplier:  Restek
Description:   Outlet Check Valve Assembly, for HPLC Systems, Model Number: 8700, 8800, 881, ISOCHROM^
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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