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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-10099-062

PTFE Stopcock Valve, Two Way, Ace Glass Incorporated

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

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
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

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
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
Product Image-89077-466

Universal Valve Tubing Connector, Ace Glass Incorporated

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 tubing.
Product Image-10853-270

Outlet Check Valves for Shimadzu HPLC Systems, Restek

Supplier: Restek

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-10853-584

Check Valve Cartridges for Waters HPLC Systems, Restek

Catalog Number: (10853-584)
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-10855-636

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-83008-432

OPTI-MAX® Check Valves and Replacement Cartridges, Optimize Technologies

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

Product Image-21001-206

Upchurch Scientific® Back Pressure Regulators, IDEX Health & Science

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

Product Image-89209-350

Drain Valves for Filter Reactors, Chemglass

Catalog Number: (89209-350)
Supplier: Chemglass
Description: These drain valves are suitable for filter reactors having volumes from 0 - 14 l.
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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.

-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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