Model D14STD-125 Liquid Pump

10HP Liquid Pump


Haskel Model D14STD-125 10HP Air-Driven Liquid Pump

Catalog literature: Liquid Pump Catalog.pdf Acrobat DC

With a nominal ratio of 125:1, the Haskel model D14STD-125 10HP air-driven liquid pump utilizes a single air head to boost liquid pressures to a maximum of 16,000 PSIG.

Features & Benefits:

  • Safe pneumatic operation – no heat, flame or spark risk
  • Infinitely variable cycling speed
  • Stall at pre-determined pressure to hold that pressure without consuming power
  • Problem-free stop/start applications
  • Easily automated – many modification and control options
  • Suitable for most liquids and liquefied gases
  • Alternative gas drive options available, such as sour gas, natural gas, boil ff gases, or nitrogen
  • Robust, reliable, compact and easy to maintain proven design
  • No need for air line lubrication – saves costs and prevents contamination
  • Unbalanced cycling spool provides immediate response to pressure changes
  • Can be manufactured to meet ATEX, CE and NACE requirements

Technical Data:

  • Power: 10HP
  • Air Head: single
  • Max Air Pressure: 125 PSIG
  • Max cycles: 40/min.
  • Nominal ratio (“dash number”): 125:1
  • Actual area ratio: 138:1
  • Max outlet pressure (continuous): 16,000 PSIG
  • Max outlet pressure (intermittent): 16,000 PSIG
  • Displacement / cycle: 8.80 cu. in.
  • Max flow: 704 cu. in./min.

Typical Performance Characteristics (@100 PSIG air supply pressure):

  • 488 in3/min @ 8,000 psig
  • 195 in3/min @ 12,000 psig

Materials of Construction:

  • Pump section: All SS & Bronze
  • Plunger: Hard chrome-plated 440C SS
  • Non-metallics: PTFE, Viton


  • Service Code 1: Petroleum-based oils, kerosene, ethylene glycol, water with 5% soluble oil.
  • Service Code 2: Plain water, diesel fuel
  • Service Code 3: Most phosphate ester-based fire-resistant hydraulic fluids (e.g. Pydraul, Lindol, Cellulube, Fyrquel and Houghtosafe 1120) and petroleum-based solvents compatible with UHMWPE (Ultra-high Molecular Weight Polyethylene) dynamic seals and Viton static seals.
  • Service Code 4: Petroleum-based solvents / aromatic hydrocarbons (e.g. benzene, toluene, xylene, hylene, etc.); chlorinated solvents (trichloroethylene, carbon tetrachloride, chlorobenzene, etc.); mercaptans; Dowtherm A; fluorinated solvents (fluorobenzene, fluorochloroethylene, etc.); Dowtherm E; plus all of Group 3 and some mildly corrosive acids compatible with wetted materials.
  • Service Code 5: Skydrol and Aerosafe hydraulic fluid; acetone and some alcohols (ethyl, methyl, and isopropyl).
  • Service Code 6: N/R


Repair kit information:

  • Fluid section seal kit P/N: 28349-2 (2 req’d)
  • Air drive seal kit P/N: 28426
  • Air valve seal kit P/N: 50881-2
  • Optional tools: 28584 (Sleeve removal tool)
  • Notes: Fluid section seal kits require 2 per pump. Pumps manufactured prior to May 1980 use air valve seal kit P/N 17821.
  • Installation documents: SKIS-001