The Dwyer HP Hand Pump provides a dual source of pneumatic pressure and vacuum for verifying the calibration of pressure instrumentation. It delivers a rated operating range of -27" Hg (-910 mbar) vacuum up to 45 psi (3 bar), with a compact, lightweight design optimized for portability and single-hand operation in field and workshop environments.

The Dwyer HP features an integrated pressure relief valve for safe operation, and a precision fine adjustment mechanism that delivers control accuracy better than 0.0015 psi (0.1 mbar). The pump comes standard with two 39" (1 m) hoses terminating in 1/4" female NPT connections, and a product instruction manual.

Features

• Operating Output Range: -27" Hg to 45 psi (-910 mbar to 3 bar)
• Process Connection: 1/4" female NPT (quick fit)
• Fine Adjustment Accuracy: Better than 0.0015 psi (0.1 mbar)
• Construction Materials: Nickel plated brass and anodized aluminum
• Integrated pressure relief valve for safe, reliable operation
• Compact design for single-hand operation and easy portability
• Dual pneumatic pressure and vacuum generation capability
• Includes 2 x 39" (1 m) hoses with 1/4" female NPT connections and instruction manual