The Model ConST132 Portable Hydraulic Pump is a dual pressure source with the ability to easily adjust and stabilize. This hand pump possesses both 90% vacuum and positive pressure 10000 psi; uses oil or deionized water as the media, and can adjust the pressure easily and stably. In order to avoid the enhance pressure seal ability, the ConST132 didn’t use the check valve (non-return valve) but use the helicoidal pump, that makes the ConST132 is very easy for pressurizing and is much better than other pliers hand pumps. The adjusting resolution is up to 100 Pa (1 mbar). These features make the CONST132 ideal for calibrating pressure transducers, precision pressure gages, and other pressure instruments.
Features
Can test big-cavity pressure gauges
Using helicoidal-pump to easy pressurize Easy operated,
much better than other pliers hand pumps.

welcome to enquiry!