Haskel Model AW-B32 — 2 HP Air-Driven Liquid Pump

Haskel Model AW-B32 — 2 HP Air-Driven Liquid Pump

The Haskel Model AW-B32 is a high-performance, air-driven liquid pump designed to deliver powerful and reliable pressure generation for demanding industrial applications. Equipped with a double air head and a nominal pressure ratio of 32:1, this pump efficiently boosts liquid pressure up to 4800 PSIG, providing exceptional capability for systems requiring high output pressure and stable operational control.

Leveraging Haskel’s proven pneumatic drive technology, the AW-B32 ensures safe and spark-free operation, making it suitable for environments where heat or electrification poses a risk. Its infinitely variable cycling speed and ability to stall at a preset pressure without consuming power provide efficient and cost-effective performance. The unit’s unbalanced cycling spool ensures rapid responsiveness to system pressure changes, while its robust, compact construction enhances reliability and simplifies maintenance.

Designed for compatibility with most liquids and liquefied gases, the AW-B32 also offers flexibility with optional drive gases—including sour gas, natural gas, boil-off gas, or nitrogen. This model can be manufactured to meet ATEX, CE, and NACE compliance requirements, enabling safe use in hazardous and corrosive environments.

Technical Specifications

Performance

• Power Rating: 2 HP

• Air Head Configuration: Double

• Nominal Pressure Ratio: 32:1

• Actual Area Ratio: 34:1

• Maximum Air Supply Pressure: 150 PSIG

• Maximum Outlet Pressure (Continuous/Intermittent): 4800 PSIG

• Maximum Cycling Rate: 80 cycles/min

• Displacement per Cycle: 2.70 cu. in.

• Maximum Flow: 810 cu. in./min

Typical Performance @ 100 PSIG Air Supply

• 500 in³/min at 700 PSIG

• 152 in³/min at 3000 PSIG

Construction Materials

• Pump Section: Nickel-plated steel & stainless steel

• Plunger: 440C stainless steel

• Non-Metallic Components: Urethane, Buna-N, PTFE

Operational Features

• Safe pneumatic operation — no heat, flame, or spark hazard

• Infinitely adjustable cycling speed

• Ability to stall at preset pressure with zero energy consumption

• Reliable stop/start functionality

• Easy integration into automated systems with available control options

• Compatible with most liquids and liquefied gases

• Optional alternative gas drives (sour gas, natural gas, nitrogen, boil-off gas)

• No air-line lubrication required — reduces cost and eliminates contamination risk

• Unbalanced cycling spool for quick response to pressure changes

• Optional ATEX, CE, and NACE certification

Application Compatibility (Service Codes)

• Service Code 1: Petroleum-based oils, kerosene, ethylene glycol, water with 5% soluble oil

• Service Codes 2–6: Not Recommended (N/R)