HAND PUMP The 919A High Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 2,000psi (140bar). With a long lever, it just takes 30 seconds to reach 2,000 psi (140 bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 0.001 psi (10 Pa , 0.1 mbar). A specially designed shut-off valve makes the pressure as stable as possible during calibration. A built-in gas-liquid isolator protects the pump from moisture and dirt to reduce the need for maintenance. The residual liquid in the pump introduced from the devices under test will be collected and then pushed out during pressure release. Two hand-tight quick connectors installed on the pump allow easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches. The 919A is an ideal comparison test pump for pressure instruments calibration. Features: High Efficiency:Generate 2,000 psi (140 bar) in 30 seconds. Adjustment Resolution: 0.001 psi  (10 Pa , 0.1 mbar). High-quality screw press for fine pressure adjustment. Great Stability: A specially designed shut-off valve makes the pressure as stable as possible during calibration. Durable and Minimal Maintenance: Built-in gas-liquid isolator protects the pump from moisture and dirt. The residual liquid in the pump introduced from devices under test will be collected and then pushed out and collected during pressure release. Anticorrosive and wear resistant material are used to improve the reliability further. Hand-tight Quick Connectors: Allows easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches. Includes: Additel ADT919A-B Pneumatic High Pressure Test Pump, 1/4 Inch BSP Female O-ring Manual