Overview
The Ross 1969A4001 Hoze-Fuze surge flow silencer valve is a critical safety component in fluid power systems. The 1969A4001 model is engineered to automatically close when downstream hose rupture causes sudden, dangerous surge flow. This spring-operated valve remains open during normal operation when upstream and downstream pressures are balanced, then snaps closed if excessive flow is detected—preventing system failure, equipment damage, and worker safety hazards.
Key Features
- Spring-operated, normally open design ensures reliable operation without external power
- 260 PSI pressure rating suitable for industrial hydraulic and pneumatic systems
- NPT threaded ports for direct installation into standard fluid power circuits
- Aluminum and brass construction for durability and corrosion resistance
- Compact in-line configuration for seamless hose integration
- Made in the USA with proven reliability across industrial applications
Technical Specifications
- Maximum Pressure Rating: 260 PSI
- Valve Type: Spring-operated, in-line surge flow silencer
- Port Threads: NPT (standard); BSPP available as D1969A4001
- Operating Principle: Normally open; closes on downstream pressure surge
- Housing Material: Aluminum body with brass internals
- Spring Material: Stainless steel
- Operating Temperature Range: 35°F to 175°F (2°C to 80°C)
- Manufacturer: Ross Controls
- Country of Origin: United States
Typical Applications
- Industrial hydraulic systems requiring burst protection
- Pneumatic tool circuits with high-speed actuation
- Manufacturing equipment with critical downtime costs
- Automotive assembly lines and metal forming operations
- Packaging machinery and production conveyor systems
- Any application where sudden hose failure could cause safety or equipment damage
Compatibility & Replacements
Compatible With
- ISO standard hydraulic and pneumatic hose systems
- Fixed air/fluid lines with NPT threads
- Industrial fluid power circuits rated up to 260 PSI
- Single-hose installations on valves, cylinders, and actuators
Replaces / Drop-In Replacement For
- Other Ross Hoze-Fuze models in similar pressure and port configurations
- Verify compatibility with your system integrator before ordering
Works With
- Pneumatic valve control systems
- Hydraulic circuit manifolds and subplates
- Hose assemblies with matching NPT port sizes
- Industrial automation and machine control circuits
