Overview
The anti-siphon pressure relief valve assembly provides essential flow control and pressure protection in fluid power systems. This two-unit assembly combines anti-siphon functionality with pressure relief capability, making it suitable for applications where gravity-induced siphoning or overpressure conditions pose operational risks. Each valve is independently adjustable and operates as a fail-safe device, closing bubble-tight when pump pressure drops or system conditions favor unwanted backflow.
Key Features
- Dual-unit package (qty 2) for installation flexibility or redundant protection
- Bubble-tight shutoff prevents siphoning when pump is offline or pressure drops
- Adjustable pressure relief setting for system overpressure protection
- Diaphragm-based design for sensitive operation and minimal pressure drop under flow
- Universal compatibility with hydraulic, pneumatic, and plumbing system configurations
- Rugged construction suitable for industrial and commercial environments
Technical Specifications
- Quantity: 2 valves per assembly
- Valve Type: Anti-siphon / Pressure relief (dual function)
- Operation: Spring-loaded diaphragm mechanism
- Pressure Range: Adjustable (typical 5–150 psi industrial standard)
- Function: Prevents system overpressure and siphon-induced tank drainage
- Outlet: Tank return or atmosphere (application-dependent)
- Condition: New
Typical Applications
- Hydraulic pump discharge lines requiring anti-siphon protection
- Pneumatic systems with gravity-induced backflow risk
- Metering pump installations in chemical processing and fluid transfer
- Water treatment and plumbing systems preventing backflow and overpressure
- Tank and reservoir protection from siphon-induced drainage
Compatibility & Replacements
Compatible With
- Hydraulic systems (pump discharge)
- Pneumatic control circuits
- Metering and centrifugal pump installations
- Closed-loop and open-tank fluid systems
- Industrial plumbing and water transfer applications
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering, as specific interchangeability depends on port sizes, pressure ratings, and connection types of your existing installation.
Works With
- Standard NPT (National Pipe Thread) connections
- Socket and flange connections (verify port configuration)
- Diaphragm or spring-loaded pressure adjustment mechanisms
- Both positive and low-pressure industrial fluid systems
