Overview
The Crosby 961101FA pressure relief valve is a J-Series direct spring relief valve designed for industrial pressure protection. This unit carries model designation JMBL61CA and is rated for 300 PSIG maximum inlet pressure. The UVNB designation indicates compatibility with ammonia and other specialized service media, making it suitable for refrigeration systems, chemical processing, and other demanding industrial applications requiring reliable overpressure protection.
Key Features
- Direct spring pressure relief design for dependable pop-type discharge
- Rated for 300 PSIG maximum inlet pressure
- Ammonia-compatible materials and construction (UVNB service designation)
- J-Series Crosby valve—proven industrial standard for safety and reliability
- Threaded inlet/outlet connections for flexible installation
- Used condition, tested and fully functional
Technical Specifications
- Manufacturer: Crosby Valve & Gage Co.
- Model/Part Number: 961101FA / JMBL61CA
- Maximum Pressure Rating: 300 PSIG
- Valve Type: Direct Spring Pressure Relief
- Service Media: Ammonia (UVNB rated)
- Design Standard: Crosby J-Series
- Cap Type: Screwed (Type J standard)
- Condition: Used, tested and functional
Typical Applications
- Refrigeration systems requiring ammonia service relief
- Chemical processing equipment protection
- Industrial hydraulic and pneumatic systems
- Pressure vessel overpressure protection
- OEM equipment replacement and retrofits
Compatibility & Replacements
Compatible With
- Industrial refrigeration systems rated for ammonia service
- Pressure vessels and accumulators up to 300 PSIG
- Standard 1/2″ to 3/4″ threaded piping systems
- Systems requiring ASME Section VIII compliance
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Crosby 961101FA valves are direct replacements for identical model numbers in compatible applications.
Works With
- ASME Section VIII pressure vessel designs
- Ammonia refrigeration system networks
- Industrial process control and safety systems
- Crosby J-Series valve ecosystems and assemblies
