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


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Product Image-46600-040

VWR® Non-Return Valves

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.

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Product Image-76399-160

Avantor® Hichrom, Back Pressure Regulator

Catalog Number: (76399-160)
Supplier: HICHROM LIMITED
Product Image-89077-464

Eight-Way Tubing Connector Valve, Ace Glass Incorporated

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 to chromatography columns

Small Business Enterprise Product available on GSA Advantage®


Product Image-89097-278

Two-Way Tubing Connector Valve, Ace Glass Incorporated

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 500psi

Small Business Enterprise Product available on GSA Advantage®


Product Image-71000-288

Connectors, with PTFE Plug Valve, Ace Glass Incorporated

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

Small Business Enterprise Product available on GSA Advantage®

Product Image-89077-462

Three-Way Tubing Connector Valve, Ace Glass Incorporated

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 desirable

Small Business Enterprise Product available on GSA Advantage®


Product Image-10099-048

PTFE Stopcock Valve, Two Way, Ace Glass Incorporated

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

Small Business Enterprise Product available on GSA Advantage®

Product Image-10853-702

Outlet Check Valves for Shimadzu HPLC Systems, Restek

Supplier: Restek

Image Unavailable-21511-232

Shut-Off Valves, Upchurch Scientific®

Catalog Number: (21511-232)
Supplier: Upchurch Scientific
Description: Stop a flow stream quickly with these shut-off valves. The bodies are manufactured from either PEEK or ETFE and both versions feature a PCTFE rotor, making them highly resistant to chemicals. The blue colorant used in some valve configurations has proven not to leach out with common HPLC solvents.
Product Image-10853-686

PerformancePLUS Check Valve Housing for Waters HPLC Systems, Restek

Catalog Number: (10853-686)
Supplier: Restek
Description: PerformancePLUS Check Valve Housing, for HPLC Systems, Model No: 1515, 1525, 510, 515, 525, 600, 610
Product Image-10855-718

Ball Valve, Parker Balston® Shut-Off Gas Valve, Restek

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

Product Image-10853-584

Check Valve Cartridges for Waters HPLC Systems, Restek

Catalog Number: (10853-584)
Supplier: Restek
Product Image-10853-476

Inlet Check Valve for PerkinElmer HPLC Systems, Restek

Catalog Number: (10853-476)
Supplier: Restek
Description: Inlet Check Valve for HPLC Systems, Model Number: Int. 4000, 1, 10, 2, 200 Series, 250, 3, 3B, 4, 400, 410, 620, Series 200 Micropump
Product Image-10853-426

Outlet Check Valve for PerkinElmer HPLC Systems, Restek

Catalog Number: (10853-426)
Supplier: Restek
Product Image-10853-752

Prime/Purge Valve Repair Kit for Prime/Purge Valve, Restek

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
Product Image-77100-286

OPTI-MAX® Replacement Check Valves

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 nitrogen bubble test; common acceptable standards are 12 bubbles or less. We have also minimized the ball travel distance within the check valve; less travel distance equals quicker seating and more accurate pump metering. Simply put, tighter specifications make a better valve.

Inquire for Price
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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