Overview
The LDI Industries PRV103-1 relief/filler vent plug is a dual-purpose breather engineered for critical applications in gearbox housings, bearings, and sealed reservoirs. This bulk package of 100 units delivers reliable ventilation and pressure relief without the need for individual ordering. Built from brass and plated steel, these plugs offer corrosion resistance and durability in demanding industrial environments.
Key Features
- Dual-Purpose Design — Functions as both relief vent and filler breather in a single unit
- Automatic Reset — Continuous duty operation without manual intervention
- 20 Micron Filtration — Protects internal systems from contaminant ingress
- Brass & Plated Steel Construction — Resists corrosion and extends service life
- 1–5 PSI Relief Range — Maintains optimal operating pressure in sealed systems
- Bulk Quantity (100 Units) — Cost-effective supply for fleets, maintenance departments, and OEMs
Technical Specifications
- Thread Size: 3/8-18 NPT
- Height: 1.19 inches
- Overall Length: 1 3/16 inches
- Top Cap Diameter: 3/4 inch
- Hex Flats Diameter: 11/16 inch
- Relief Pressure Range: 1–5 PSI
- Filter Rating: 20 Micron
- Material: Brass and Plated Steel
- Quantity per Package: 100 units
- Manufacturer: LDI Industries
Typical Applications
- Automotive and industrial gearbox housings
- Bearing reservoirs and sealed assemblies
- Hydraulic and lubrication system breathers
- Fluid reservoirs requiring pressure and vacuum relief
- Heavy equipment and machinery maintenance
- OEM assembly and retrofit applications
Compatibility & Replacements
Compatible With
- Any sealed gearbox or bearing system with 3/8-18 NPT female threads
- Hydraulic and lubrication reservoirs operating at 1–5 PSI relief pressure
- Industrial machinery requiring dual-purpose relief/filler vents
- Automotive OEM and aftermarket applications
Replaces / Drop-In Replacement For
- LDI Industries PRV103-2 (same specifications, interchangeable)
- Other 3/8-18 NPT relief/filler vent plugs with similar pressure ratings
Works With
- All standard 3/8-18 NPT threaded ports on sealed systems
- Systems requiring 20 micron air filtration
- Automotive, industrial, and hydraulic equipment using brass or steel vents
