Overview
The Universal Silencer 81-1234 air filter restriction gauge is a critical monitoring tool for compressed air systems. Universal’s Filter Restriction Gauge provides a convenient, accurate means of monitoring filter pressure drop as the filter element becomes increasingly loaded with dirt. The restriction gauge is equipped with a 1/8″ male NPT and may be threaded directly into a 1/8″ female NPT fitting.
Key Features
- 1/8″ male NPT threaded connection for direct mounting
- Easy-to-read dial format for quick pressure drop assessment
- Maximum restriction recommended across Universal Silencer’s filter elements is 20 inches of water
- Cartridge filters and filter-silencers are standard with threaded connections for direct mounting of the gauge
- Suitable for industrial and commercial pneumatic applications
Technical Specifications
- Connection: 1/8″ Male NPT
- Measurement Units: Inches of water
- Maximum Recommended Restriction: 20 inches of water
- Installation: Direct threaded mount or via 1/4″ x 1/8″ NPT adapter
- Manufacturer: Universal Silencer (Durr)
Typical Applications
The 81-1234 restriction gauge is commonly used in:
- Compressed air filter systems for pressure drop monitoring
- Industrial pneumatic equipment maintenance
- Reciprocating engine intake silencers and filters
- Rotary positive displacement blower silencers
- Vacuum service inline air filters
- Preventative maintenance programs to optimize filter element lifespan
Compatibility & Replacements
Compatible With
- Universal Silencer cartridge filter housings with NPT ports
- Universal Silencer compressor silencers and filters
- Filter housings with 1/8″ female NPT connections
- Filter housings with 1/4″ female NPT connections (with adapter)
- Industrial compressed air systems manufactured by Universal
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 81-1234 is a direct replacement for worn or damaged Universal air filter restriction gauges in equivalent configurations.
Works With
- Universal Silencer ILF series inline air filters
- Universal Silencer ILFV series vacuum service inline filters
- Universal reciprocating engine silencers (catalog 246-A)
- Universal rotary positive blower silencers (catalog 244-D)
- Universal compressor silencers and filter housings
