Use to slowly or quickly bleed pressure from a line after a calibration is complete
- Easily connect between the end of a Quick-test hose and the process connection
- Keep fluid or contaminates out of the hand pump, calibrator or nitrogen control device
![In-line Vent Valves](https://ralstoninst-cms.imgix.net/landing/QTHA-TVLB-HC_IN_USE-banner-image.jpg?auto=compress%2Cformat&crop=focalpoint&domain=ralstoninst-cms.imgix.net&fit=crop&fp-x=0.5&fp-y=0.5&h=72&ixlib=php-3.3.1&w=150&s=49b3cd39ccf26ddbe30ae51b441b41d2)
In-line Vent Valves
In-line Vent Valves come in a variety of different configurations. Choose which is right for your application
![](https://ralstoninst-cms.imgix.net/general/ralston-quick-test-logo.png?auto=compress%2Cformat&crop=focalpoint&domain=ralstoninst-cms.imgix.net&fit=crop&fp-x=0.5&fp-y=0.5&h=32&ixlib=php-3.3.1&w=150&s=0006e612f5fe880762a57b3fcfca8a6b)
Part of the Ralston Quick-test™ System of safe, stable, leak-free connections without a wrench.
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