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Pressure-Relief Valves

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A pressure relief valve is the primary protection to personnel and equipment involved with static and dynamic pressured systems. The pressure relief valve is used to control or limit the pressure in a system or vessel which can build as a result of a process upset, instrument or equipment failure, or fire. The relief valve is designed or set to open at a predetermined set pressure to protect pressure vessels and other equipment from pressure that exceed their design limits.


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Supplier:  Bel-Art Products
Description:   Simply squeeze the soft silicone body of the valve to permit flow, and release pressure to suspend the flow.
Supplier:  Ace Glass
Description:   The primary protection to personnel and equipment involved with static and dynamic pressured systems
Product available on GSA Advantage® Small Business Enterprise
Supplier:  DuPont
Description:   This test kit is designed for periodic air pressure testing on all Level A fully encapsulated suits.
Supplier:  DuPont
Description:   Valve adapters for testing Tychem® RESPONDER® CSM Suits.
Catalog Number: (89029-590)

Supplier:  Chemglass
Description:   Automatic, adjustable pressure relief valve is designed for use on an apparatus where internal pressure build-up is a concern
Small Business Enterprise
Supplier:  Cole-Parmer
Description:   Evaporation control and relief valves allow reversible configurations.
Supplier:  Huber
Description:   Manually adjustable bypass M24x1.5, for Unistats, incl. pressure gauge, Temperature range: -10 deg C-150 deg C, Scale 0-4bar, for Unistats with max 4bar pump, diameter 63mm, radial, thermally isolated, class 1, 6, ABS-housing
Supplier:  Glas-Col
Description:   Automatic venting of air pressure while shaking separatory funnels.
Small Business Enterprise
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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.
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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