You Searched For: 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.

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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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.

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


Catalog Number: (89077-464)
Supplier: Ace Glass
Description: This eight-way tubing connector valve is used for applications where multiple channels are necessary for distributing reagents, solvents, or buffers t...

Product available on GSA Advantage® Small Business Enterprise


Supplier: Ace Glass
Description: Polypropylene connectors, two-way or three-way, with PTFE valve and serrated tubulations

Product available on GSA Advantage® Small Business Enterprise

Supplier: Ace Glass
Description: This PTFE valve is used with NPT fittings.

Small Business Enterprise

Catalog Number: (89097-278)
Supplier: Ace Glass
Description: Similar to the Variable Bore Tubing Connector (89077-438), except this Two-Way Tubing Connector Valve features a single Tefzel control valve rated at ...

Product available on GSA Advantage® Small Business Enterprise


Catalog Number: (89077-466)
Supplier: Ace Glass
Description: This universal tubing connector body includes an integral linear valve designed to provide flow control while connecting large O.D tubing to small O.D...

Product available on GSA Advantage® Small Business Enterprise


Catalog Number: (89077-462)
Supplier: Ace Glass
Description: This three-way tubing connector valve is used for applications where stream switching, reagent switching, sample removal, or sample injection is desir...

Product available on GSA Advantage® Small Business Enterprise


Supplier: Upchurch Scientific
Description: Upchurch Scientific® Back Pressure Regulators (BPRs) are designed to enhance system performance through outgassing prevention and improved pump check ...

Supplier: Upchurch Scientific
Description: Upchurch Scientific® Ultra-Low Volume Back Pressure Regulators (BPRs) were developed to minimize swept volume, which is especially important for multi...

Catalog Number: (10853-686)
Supplier: Restek
Description: PerformancePLUS Check Valve Housing, for HPLC Systems, Model No: 1515, 1525, 510, 515, 525, 600, 610


Supplier: Restek
Description: Parker's fittings are ideal for installing new equipment, modifying existing instrumentation, or replacing worn connections.

Supplier: Restek
Description: Parker's fittings are ideal for installing new equipment, modifying existing instrumentation, or replacing worn connections.

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

Catalog Number: (10853-426)
Supplier: Restek
Description: Outlet Check Valve for PE 200, 4, 250, 400, 410, 620, Similar to PE# 02540197


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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.
To process your orders without delay, please provide the required business documentation to purchase this product.

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

* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.

-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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