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You Searched for: "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:  Upchurch Scientific
Description:   Connect standard 1/4-28 Inline Check Valves to any 1/4-28 flat-bottom port to limit flow to one direction. Then thread a 1/4-28 flat-bottom fitting in...
Supplier:  Upchurch Scientific
Description:   Upchurch Scientific® cartridge-style Inline Check Valves are designed to limit flow in one direction. Replacement cartridge 53500-798 can be pu...
Supplier:  Upchurch Scientific
Description:   Injection molded PEEK™ valves hold to 1000psi (to 500psi with gas) and turns at a much lower torque. Two Tefzel® ferrules and two PEEK™ flangeless nut...
Supplier:  Optimize
Description:   Preassembled check valve cartridges conveniently insert into a reusable housing and function in either the inlet or outlet position. The two-piece Fre...
Catalog Number: (21511-232)
Supplier:  Upchurch Scientific
Description:   For 1/8 inch OD tubing 1/4-28 threads, Tefzel* (ETFE), .040 inch thru-hole, blue
Supplier:  Restek
Description:   PerformancePLUS Check Valve Cartridge, for HPLC Systems, Model Number: 1515, 1525, 2690, 2695, 2795, 510, 515, 600, 610
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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.
In order to process your orders without delay, we request that you provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • State issued document with your organization's Federal Tax ID Number
  • State issued document with your organization's Resale Tax ID Number
  • City or County issued Business License
  • State Department of Health Services License
  • Any other ID issued by the State that includes the business name and address

* Please note if your account is within the State of California two of these pieces of identification will be required.
VWR will not lift restrictions for residential shipping addresses.

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This product has been blocked by your organization.
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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