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The Haskel DTV-4 is a compact yet powerful 1.5 HP pneumatic liquid pump, engineered with a distance-piece design and a single air head. It features a nominal 4:1 ratio (actual 4.6:1), capable of producing hydraulic pressures up to 690 psi continuous, with intermittent spikes up to 1,200 psi. The pump boasts stall-and-hold capability locking in pressure without consuming air, ideal for testing, fluid transfer, and calibration. Constructed from commercial-grade stainless steel, reinforced Teflon dynamic seals, and Viton O-rings, it ensures durability in industrial environments. Adjustable cycle speed and multiple control options make it versatile for automated and manual processes.
- Generates up to 690 psi continuous hydraulic pressure and 1,200 psi intermittent
- Air-driven, with no electricity safe for classified and hazardous zones
- Stall-and-hold/distance-piece design holds set pressure without air use
- Reinforced Teflon dynamic and Viton static seals ensure chemical resistance
- Variable cycle speed (~80 cpm) and optional control modifications available
| Model / Part No. | DTV-4 |
| Power | 1.5 HP pneumatic |
| Nominal / Actual Ratio | 4 : 1 / 4.6 : 1 |
| Max Pressure | Continuous: 690 psi (48 bar); Intermittent: 1,200 psi (83 bar) |
| Displacement per Cycle | 20 in (328 mL) |
| Max Flow Rate | ~3,200 in /min (~52 L/min) |
| Max Cycle Rate | ~80 cpm |
| Air Drive Pressure | 3 150 psi (0.2 10 bar) |
| Seal Materials | Reinforced Teflon (dynamic); Viton O-ring (static) |
| Body Material | Stainless steel |
| Weight | ~35 lb (16 kg) |