Product Overview

The HYTEK HG1-125-50-01R-VPC-D-36-1 is a high-performance internal gear pump engineered for demanding industrial hydraulic systems. Manufactured by HYTEK, this fixed-displacement pump operates on the proven internal gear principle, utilizing a precision-machined outer ring gear and a smaller pinion gear to create a sealed, rotating displacement chamber. As the gears mesh and rotate, hydraulic fluid is drawn from the inlet port, pressurized between the gear teeth and the crescent seal, and discharged at a stable, continuous flow rate. The HG1 series is renowned for its exceptionally low noise signature, minimal pressure pulsation, and high volumetric efficiency, making it an ideal choice for applications requiring smooth, reliable hydraulic power delivery. The model designation HG1-125-50-01R-VPC-D-36-1 indicates a nominal displacement of 125 cm³/rev, a 50 mm inlet port configuration, and a right-hand (clockwise) rotation orientation with a standard 36-tooth spline drive shaft.

Technical Specifications

Parameter	Specification / Feature
Component Type	Internal Gear Pump (Hydraulic Gear Pump)
Model Designation	HG1-125-50-01R-VPC-D-36-1
Nominal Displacement	125 cm³/rev
Operating Pressure	Standard Industrial Grade (Up to 250 bar continuous / 280 bar peak)
Speed Range	Up to 2,500 rpm (dependent on fluid viscosity and pressure)
Rotation Direction	Right-Hand (Clockwise) — denoted by “R” in model code
Mounting & Connection	Standard ISO 4-bolt flange / SAE spline drive (36-tooth)
Inlet Port Size	50 mm (denoted by “50” in model code)
Seal Type	VPC — Viton / PTFE composite shaft seal for high-temperature and high-pressure service
Body Material	High-tensile cast iron / aluminum alloy casing

Engineering Features & Advantages

Precision Internal Gear Design: The crescent-sealed internal gear set delivers smooth, low-pulsation flow with exceptional volumetric efficiency, minimizing energy loss and heat generation in the hydraulic circuit.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
Direct Fit Replacement: Precision-manufactured to original HYTEK specifications for direct replacement, minimising downtime and eliminating fitment issues.

Typical Industrial Applications

The HG1 series is renowned for its exceptionally low noise signature, minimal pressure pulsation, and high volumetric efficiency, making it an ideal choice for applications requiring smooth, reliable hydraulic power delivery.

PRODUCT IMAGES

HYTEK HG1-125-50-01R-VPC-D-36-1 Internal Gear Pump

⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:

Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
Peace of Mind: Covered by our 12-Month Replacement Warranty.

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