The Prisma PMP-40 pneumatic pressure test pump is a hand-operated pressure pump designed with a reversing valve generating pressures ranging from 95% of the vacuum up to 40 Bar. A resolution of 1 mbar is obtained thanks to its exceptionally high-quality fine adjustment valve. Its shut-off valve has been especially designed to generating stable the pressure throughout the calibration. Built with an integrated filter in order to protect the pump by isolating all impurities, it also avoids any maintenance and consequently it increases its lifespan. The two connectors allow an easy connecting /disconnecting by hand to the the measurement instruments, making the calibration work efficient and pleasant The PMP-40 comparison pump is your essential tool for calibrating your pressure instruments.