VRT3-250PS6 | 3700 PSI 27M Unloader Valve with PS2 Control

Overview

• The VRT3-250PS6 unloader valve combines heavy-duty
  250 bar (≈3,625–3,700 PSI) pressure regulation with integrated safety
  monitoring in one compact assembly.
• Built on the proven VRT3 platform and equipped with a
  blue spring for higher-pressure regulation, it adds a
  PS6 pressure switch that can signal a controller or trigger an automatic
  shutdown if pressure approaches unsafe levels.
• During operation, the unloader automatically diverts flow to bypass whenever
  the trigger is released, limiting heat and preventing dangerous spikes.
• The result is stable working pressure, fewer leak points compared to
  separate components, and simplified compliance for facilities with strict
  safety protocols.

What This Means for Your Rig

• Ideal for builds that require interlocks, E-stops, or PLC supervisory control,
  combining regulation and monitoring in a single unit.
• The integrated PS6 pressure switch delivers a clean on/off signal for panels
  and shutdown circuits, supporting automated safety responses.
• The VRT3 unloader body provides the smooth bypass behavior contractors expect
  for consistent system performance.
• Shorter install times, tidier plumbing, and a
  consistent feel across multiple rigs and wash bays when you standardize on
  this model.

Performance Specs (Quick Reference)

• Max Pressure: 250 bar (≈3,625–3,700 PSI)
• Max Flow: up to 10.5 GPM (typical VRT3 capacity)
• Temperature: up to 194°F (90°C) typical; confirm seal set for hot-water or
  chemical use.
• Connections: 27M ports for robust, industry-standard mating.
• Control: Adjustable regulation with heavy-duty blue spring.
• Monitoring: Integrated PS6 pressure switch for signaling or
  shutdown (wiring to panel/controller required).
• Typical Use: Trapped-pressure unloader for commercial cold- or hot-water
  systems with safety interlocks.

Build & Materials (Made to Last)

• Reinforced VRT3 body built for long service life under vibration and heavy
  duty cycles.
• Precision valve stack delivers stable regulation and smooth transitions
  between spray and bypass.
• Metal threaded ports support repeatable torque and leak-resistant sealing
  in high-pressure plumbing.
• Integrating the PS6 switch into the assembly reduces external tees
  and joints, cutting potential leak paths and simplifying maintenance.
• Compact profile fits skids, enclosed carts, wall bays, and OEM panels where
  space and wiring access matter.

Benefits & Differentiators (Why Choose This Model)

• Dual function: Pressure regulation plus live pressure monitoring in
  one compact assembly.
• Safer operation: PS6 switch supports E-stop or PLC actions before conditions
  become hazardous.
• Clean plumbing: Fewer tees and joints mean fewer leak points and
  faster installs.
• Stable output: Blue spring holds set pressure across different tips,
  hose lengths, and working conditions.
• Fleet friendly: Standardized VRT3 wear parts and familiar service practices
  simplify stocking and training.
• Compliance ready: Supports documented safety procedures in
  code-compliant wash bays and industrial facilities.

Industries & Applications

• Industrial lines with E-stop or PLC control requirements.
• Code-compliant commercial wash bays and regulated facilities.
• High-throughput contractor systems and fleet wash trailers.
• Municipal and public works equipment washdown operations.
• Manufacturing, recycling, and material handling plants with intensive
  cleaning demands.
• Agriculture and food equipment washdown where chemical compatibility is
  verified.

Compatibility & Fit (Mounting, Plumbing, Nozzles)

• Plumbing & orientation:
  Install downstream of the pump and upstream of the hose or reel. Route bypass back to tank
  when your system requires recirculation. Use thread sealants approved for high-pressure water
  service and verify torque on metal fittings.
• Porting:
  Supplied with 27M connections for professional integration. If adapting to
  other thread standards, use rated fittings and confirm sealing surfaces and flow path.
• Electrical integration:
  Wire the PS6 pressure switch to your control panel or interlock per your
  schematic. Verify voltage and current ratings, fail-safe logic, and test shutdown behavior
  during commissioning.
• Power pairing:
  Ideal for triplex pumps delivering up to 10.5 GPM in the 3,600–3,700 PSI range
  on gas-engine or electric builds.
• Include thermal relief valve, inlet filtration, regulator and gauge, and
  burst-rated hose & wand assemblies in your system design for added protection.
• Nozzle & orifice guidance:
  • Select a spray tip orifice that matches pump GPM at target PSI; correct orifice is
    critical for stable pressure.
  • With water flowing (trigger open), adjust to reach working pressure, then secure the
    setting per your SOP.
  • Turbo nozzles can create pressure spikes; ensure every component, including the unloader,
    is rated at or above system pressure with margin.

Setup, Service & Reliability

• Startup: Prime with clean water, purge air, and confirm supply flow before
  first start.
• Adjustment: Adjust pressure only with the trigger pulled to avoid false
  readings and over-pressure conditions.
• Inspection: Inspect inlet screens regularly and monitor for chatter or
  creeping pressure as indicators of wear or contamination.
• PS6 verification: Test PS6 switch operation during commissioning and at
  scheduled intervals to ensure proper shutdown response.
• Service: Maintain on a preventive schedule using appropriate VRT3 wear
  parts to keep performance consistent.
• Operating limits: Keep temperature, chemical exposure, and water quality
  within manufacturer limits to maximize seal life and efficiency.

What Is Included

• VRT3-250PS6 unloader valve with heavy-duty blue spring.
• Integrated PS6 pressure switch (wiring by installer).
• 27M connections as supplied for professional integration.
• Basic installation and setup guidance for proper commissioning.