VHP31/250-170 | 2465 PSI Compact High-Pressure Unloader Valve

VHP31/250-170 – Unloader Valve – 2465 PSI

The Annovi Reverberi VHP31/250-170 is a high-volume industrial-grade unloader valve engineered for continuous-duty cleaning systems operating up to 2,465 PSI (≈170 BAR). Built with oversized 1″ inlet and outlet ports, this model supports large flow capacities with minimal restriction, making it ideal for high-demand environments where reliability and pump protection are essential. Its gray spring assembly ensures stable, consistent pressure regulation during fluctuating loads and extended operation.

Heavy-Duty Performance for High-Flow Systems

Designed for large-scale wash operations, the VHP31/250-170 provides smooth, dependable pressure control across long cleaning cycles. Its automatic bypass system activates the moment the spray trigger is released, helping protect pumps and downstream components.

• Prevents dangerous overpressure and thermal buildup
• Reduces vibration and system strain
• Ensures stable output for commercial and industrial wash systems
• Supports high-throughput systems without restriction

Built for Reliability and Longevity

The rugged housing and precision-machined internals are engineered for long-term durability under continuous heavy-duty use. The gray spring assembly provides consistent regulation throughout the full pressure range.

• Extended pump life through reduced component strain
• Stable regulation under fluctuating system loads
• Lower maintenance costs and improved operational uptime

Service-Friendly Design

The VHP31/250-170 is engineered for easy installation and maintenance, ideal for systems that cannot afford downtime.

• Oversized 1″ ports for effortless plumbing into high-flow systems
• Simple integration and replacement
• Accessible layout reduces service time and complexity

Applications

• Industrial facilities – factory wash bays, heavy equipment cleaning, chemical plant washing
• Agriculture – machinery cleaning, irrigation flushing, livestock sanitation
• Contractor wash systems – fleet washing, construction equipment cleaning, high-output portable rigs
• Large commercial operations – municipal garages, distribution centers, and facilities with heavy daily cleaning needs

Why Choose the VHP31/250-170?

• Rated at 2,465 PSI (≈170 BAR) for industrial-grade performance
• Oversized 1″ ports maximize efficiency in high-volume systems
• Gray spring ensures stable, consistent pressure regulation
• Automatic bypass protects pumps and components from overpressure and overheating
• Rugged construction supports continuous heavy-duty use
• Service-friendly design minimizes downtime

Key Features & Applications

• Pressure Rating: 2,465 PSI (≈170 BAR)
• Connections: Oversized 1″ inlet/outlet ports
• Spring: Gray spring for consistent regulation
• Function: Automatic bypass for pump safety
• Build: Rugged housing with precision internals
• Applications: Industrial, agricultural, contractor, and large-scale commercial wash systems