Price range: $11,262.00 through $12,332.00
The Additel 959AW is a state-of-the-art hydraulic ultra-high pressure test pump designed to generate precise pressures up to an impressive 40,000 psi (2,800 bar). This benchtop pressure pump is an essential tool for professionals requiring high-accuracy pressure calibration in industries such as aerospace, energy, and manufacturing.
Engineered with precision, the Additel 959AW is designed to meet the highest industry standards. Its innovative isolation valve prevents common check valve leakage issues, enhancing measurement stability and reducing maintenance needs. The pump’s 420ml reservoir capacity and 1.5ml piston volume ensure efficient performance across a range of applications. The use of high-quality Buna-N, PTFE, and copper alloy seals further enhances its longevity and reliability.
Ideal for calibration professionals, the Additel 959AW is compatible with a wide range of pressure measurement instruments such as test gauges, indicators, and transducers. Whether used in the lab or in the field, this pump delivers exceptional performance, efficiency, and accuracy.





AV-TEK / Houston Office
4123 Hollister, Suite G
Houston, TX, 77080
AV-TEK / San Marcos Office
900 Barnes Dr. Suite 200
San Marcos, TX, 78666