HGW Resources

HGW Blog

Practical guides for identifying hydraulic fittings, comparing connection styles, checking applications, reviewing materials, and finding relevant HGW product categories.

Materials

Aircraft Hydraulic Fluids: Fire Resistance, Temperature Range, and Compatibility

HGW Hydraulics on Jul 1st 2026

Aircraft hydraulic systems need fluids that can transmit power reliably across a wide temperature range while resisting fire risk and r
Maintenance

Three Common Hydraulic Hose Failure Causes: Heat, Abrasion, and Bend Stress

HGW Hydraulics on Jun 4th 2026

Hydraulic hoses move pressurized fluid through cranes, forklifts, jacks, industrial machines, mobile equipment, and many other systems.
Materials

Why Stainless Fitting Threads Gall: Material, Friction, and Installation Causes

HGW Hydraulics on May 27th 2026

Thread galling is a wear and seizing failure that can lock a fitting together during assembly. It is especially common in stainless ste
Connection Types

Thread Angle Mismatch in Hydraulic Fittings: Why a Temporary Seal Can Fail

HGW Hydraulics on May 21st 2026

Thread angle is the included angle between the thread flanks. Many common thread systems use a 60 degree form, but not every connection
Maintenance

Torque Charts, Thread Friction, Plating, and Lubricants in Hydraulic Connections

HGW Hydraulics on May 12th 2026

Torque specifications matter because they help create the clamp load a hydraulic connection needs without damaging the fitting, port, t
Materials

Stainless Steel Fitting Galling: Why Threads Seize and How to Prevent It

HGW Hydraulics on May 6th 2026

Stainless steel fittings are valued for corrosion resistance, strength, and service life, but stainless threads need careful installati
Maintenance

Thread Tightening and Hydraulic Leaks: Tapered vs Parallel Sealing

HGW Hydraulics on Apr 28th 2026

Hydraulic leaks often begin at the fitting. A connection can look tight from the outside and still leak if the threads, sealing surface
Maintenance

Torque and Hydraulic Sealing: How Tightening Affects NPT, JIC, ORB, and BSPP Connections

HGW Hydraulics on Apr 23rd 2026

Torque controls how a hydraulic connection seats. Too little tightening can leave sealing surfaces loose, while too much tightening can
Maintenance

Hydraulic Fluid Contamination Control: Testing, Filters, and Maintenance Practices

HGW Hydraulics on Apr 8th 2026

Hydraulic fluid lubricates moving parts, transfers power, and supports resistance in valves, cylinders, pumps, and actuators. When that
Fitting Guides

Custom Hydraulic Fittings and Specials for Reducing Leak Risk

HGW Hydraulics on Apr 2nd 2026

Hydraulic leaks create hard costs and soft costs. Lost oil, cleanup, maintenance labor, downtime, environmental exposure, fines, and jo