DURAN GROUP

PRODURAN® valve stopcocks have formed part of the Duran Group product range for more than 15 years. Through continuous modification and product optimisa-tions, the DURAN Group PRODURAN® valve stopcocks have established themselves as the best in their class available on the market.
With a guaranteed leak-rate of 10-6 mbar x l / s and a temperature resistance of up to 200 °C the stopcocks are the perfect solution for metering and controlling gases and liquids in the high vacuum range.

The composite system of glass, metal and plastic permits grease-free working, the media flowing through the valve only come into contact with glass and PTFE. The valve design makes it convenient to use and easy to undo and remove.
The unscrew safety device prevents the valve shaft from being completely unscrewed. A fine-thread spindle permits extremely fine height adjustment of the valve opening. The adjustable valve shaft increases the stopcock service life.

The PRODURAN® valve product properties are regularly tested. For example, the Max-Planck Institute confirmed in its last measurement of the leak-rate using a helium leak detector that the actual leak rates are generally better than those guaranteed by us.

The DURAN Group PRODURAN® stopcocks are available as an angle or straight stopcock.