High quality and field proven, the Druck PV411A pressure and vacuum hand pump delivers unprecedented functionality in a handheld pressure source. This remarkable 4-in-1 hand pump replaces four conventional hand pumps: hydraulic, pneumatic, vacuum, and low-pressure operation, eliminating the need for multiple tools for on-site pressure calibration and testing.

The PV411A is designed for hydraulic operation with distilled water (no alcohol) and mineral oil with a viscosity of up to 40 cSt (corrected from original erroneous "40 wt." specification). For combined hydraulic and pneumatic operations, it is recommended to use distilled water during hydraulic operation to avoid cross-contamination and ensure stable performance.

Its unique design eliminates the physical effort associated with conventional hand pumps: high pressure generation is achieved via a highly sensitive volume adjuster, with a built-in stroke adjuster to control the pressure/vacuum generated per stroke. The pump features a 240° swivel head for optimum viewing of reference indicators, and internal moving parts are PTFE (Teflon) coated and hard anodized for reduced friction, wear, and extended service life. It has an ergonomic, rugged and lightweight design with a comfortable hand grip, suitable for harsh field environments.

Features of the Druck PV411A Pressure and Vacuum Hand Pump

• Unique vacuum priming function removes trapped air during hydraulic operation, ensuring stable pressure generation
• Effortless high pressure generation via the volume adjuster, eliminating the heavy physical effort of conventional hand pumps
• Pressure/Vacuum selector valve with exceptional fine control pressure relief in both pneumatic and hydraulic modes
• Tamper-proof adjustable overpressure protection valve, settable to relieve pressures from 300 to 10,000 psi
• Removable hydraulic reservoir that can be disconnected from the pump without draining the fluid
• Reservoir safety feature: spring-loaded top cover vents if inadvertently pressurized above 8 psi
• Highly sensitive volume adjuster for hydraulic, pneumatic, vacuum, and low-pressure (inH2O range) operation
• Built-in stroke adjuster controls the pressure/vacuum generated per stroke for precise control
• 240° swivel head for optimum viewing of reference indicators in any working position
• PTFE (Teflon) coated and hard anodized internal moving parts for reduced friction and extended wear life
• Ergonomic, rugged and lightweight design with comfortable hand grip for all-day field use
• Hydraulic pressures up to 10,000 psi
• Pneumatic pressures up to 600 psi
• Vacuum down to 28.5 inHg
• Low pressure inH2O range generation capability