You Searched For: Non Return Valves


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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


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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


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

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


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: Optimize
Description: Each ball and seat set is individually matched to ensure a lock-and-key fit. This guarantees three bubbles/minute or less in the industry standard nit...

Supplier: Optimize
Description: Preassembled check valve cartridges conveniently insert into a reusable housing and function in either the inlet or outlet position

Supplier: Upchurch Scientific
Description: Prevent system over-pressurization with Upchurch Scientific® Pressure Relief Valves

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.

Catalog Number: (10853-752)
Supplier: Restek
Description: Prime/Purge Valve Repair Kit for Prime/Purge Valve, Includes: soft seal (2), PTFE O-ring (2), 7/32 hex key


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

Supplier: Upchurch Scientific
Description: Upchurch Scientific® cartridge-style Inline Check Valves are designed to limit flow in one direction

Supplier: Avantor
Description: Our valves have low internal volumes and are rated to 15,000 psi (103,421 kPa).

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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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