Register for an upcoming training seminar or event at JHF.

Explore the upcoming John Henry Foster events and training seminars to secure your spot online and expand your industrial knowledge. Browse future events below.

Upcoming Training & Events (1)
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2-Day JHF Hydraulic Training Seminar

Date October 29-30, 2025
Time 8:30am - 4:30pm
  • Location John Henry Foster Company of St. Louis

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Day one (October 29th) lays the groundwork with a solid foundation in hydraulic principles, schematics, and contamination control. Day two (October 30th) builds on that knowledge, diving into pumps, valves, transmissions, and advanced hydraulic components.

This two-day hydraulics training is designed for maintenance technicians, operators, engineers, supervisors, and anyone responsible for working with or maintaining hydraulic systems. Attendees will gain practical knowledge to better understand, troubleshoot, and maintain equipment—helping reduce downtime and improve efficiency.

Ideal for both new hires and experienced personnel, this seminar equips participants with the skills and confidence to apply hydraulic concepts directly in their workplace. Each day runs from 8:30 AM – 4:30 PM and includes breakfast donuts and lunch.

 

ARO® Pumps & FRLs — Sales, Service & Maintenance | John Henry Foster
John Henry Foster × ARO®

ARO® Pumps, Lubrication & FRLs — Sales, Service & Maintenance

As an authorized distributor, John Henry Foster helps you spec, supply, and maintain ARO® fluid handling equipment—air‑operated & electric diaphragm pumps, piston pumps, lubrication systems, and ARO‑Flo FRLs—for reliable, efficient production.

ARO pump hero

Products

What we sell & support

ARO AODD Pump

Air‑Operated Diaphragm Pumps (AODD)

Proven, stall‑resistant pumps for light‑to‑medium viscosity fluids—even with solids. Available in metallic and non‑metallic builds, with ATEX options.

ARO EVO Electric Pump

Electric Diaphragm Pumps (EVO Series™)

Energy‑efficient, sealless positive‑displacement technology for continuous duty and precise control—ideal when air is limited or energy costs matter.

ARO Piston Pump

Piston Pumps & Packages

Hydraulic and pneumatic piston pumps for transfer and extrusion—handling viscosities up to 1,000,000 cP for coatings, sealants, and adhesives.

ARO Lubrication Equipment

Lubrication Equipment

Oil and grease pumps in ratios from 3:1 to 100:1 for shop service through heavy equipment lube systems—plus meters, handles, and reels.

ARO-Flo FRLs

ARO‑Flo FRLs

Modular filters, regulators, and lubricators to protect your pneumatics and keep devices running at peak performance with precise oil feed control.

ARO Repair Kits

OEM Parts & Repair Kits

Genuine air & fluid section kits, diaphragms, checks, and seals to restore factory performance and protect warranties.

© John Henry Foster Company of St. Louis. ARO® is a trademark of Ingersoll Rand and used here for reference only.