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OTC 4277 Hydraulic Flow Meter – 50 GPM for Industrial & Agricultural Machinery
OTC 4277 Hydraulic Flow Meter – 50 GPM for Industrial & Agricultural Machinery
Where to Buy
Verify compatibility with your vehicle or equipment before ordering. Prices and availability may vary.
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The OTC 4277 Hydraulic Flow Meter is a rugged, accurate diagnostic tool for testing hydraulic flow circuits in agricultural, industrial, and mobile machinery. It measures flow from 4 to 54 GPM with ±4% full-scale accuracy and handles pressures up to 6,000 PSI at temperatures up to 230°F. Engineered with a durable steel case, fluid-filled gauges, built-in loading valve, and integrated thermometer, the OTC 4277 lets you diagnose pump, valve, cylinder, and motor performance under real operating conditions.
Specifications
| Manufacturer | OTC Tools |
|---|---|
| Part Number | 4277 |
| Part Type | Hydraulic Flow Meter |
| Flow Range | 4 to 54 GPM |
| Flow Accuracy | ±4% of full scale |
| Pressure Range | Up to 6,000 PSI |
| Pressure Accuracy | ±1.6% of full scale |
| Max Temperature | 230°F |
| Port Size | 1-5/16"-12UN JIC Male |
| Case Material | Steel |
| Dimensions (L × W × H) | 12-1/4" × 4-1/8" × 4-7/8" |
| Bi-Directional Flow | Yes (reads in one direction) |
| Overpressure Protection | Inner pass system with extra burst discs |
| Batteries Required | No |
Applications
The OTC 4277 hydraulic flow meter is designed for diagnosing and commissioning hydraulic systems including:
- Agricultural tractors and implements
- Industrial hydraulic machinery
- Mobile equipment (skid steers, excavators, loaders)
- Hydraulic pump, valve, cylinder, and motor testing
Verify your hydraulic system port size and flow requirements before ordering to confirm compatibility.