Check Valve with Dual 3/8 inch Hose Connections
Check Valve with Dual 3/8 inch Hose Connections
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- All-glass check valve to prevent reverse flow
- Ground seat and glass ball
- Hose connections are 8 mm OD
- Borosilicate glass, heavy duty and reusable
- Warranty: StonyLab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
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Contact Us
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Shipping Worldwide
Shipping Worldwide
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2-Year Warranty
2-Year Warranty
Rest easy knowing that all web registered members receive a 1-Year Comprehensive Warranty and an additional 1-Year Limited Warranty on their purchases.
Price Adjustment
Price Adjustment
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Questions & Answers
Have a Question?
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Please could you provide the maximum rated negative pressure that this valve is safe for? I have an application where the vessel connected to the valve may be taken down to 0.1 atm or lower, so there would be a strong vacuum force acting on this valve and I want to check that it will be safe for this use.
Dear Customer,
The valve is safe to use at 0.1 atm, so it will be suitable for your application.
Thanks,
StonyLab Team
Used in several lab applications to prevent gas or liquid backflow. Response time can be improved by orienting the valve vertically, when positive pressure stops then gravity makes the glass "bead" fall and immediately seal from reverse flow. Works for air/gases and liquids; uses a standard hose barb. A small and often overlooked but essential item that greatly increases the safety of chemical experiments. Simply a must-have!
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