Zero Leakage and Zero Frictional Drag
Zero Leakage and Zero Frictional Drag

Zero-Leakage Transfer Valves Engineered for Power Generation & Turbine Systems

HYCOA® JR-33 Transfer Valves

National Filtration
HYCOA

In power generation, lubrication system reliability is mission-critical. Any leakage, pressure loss, or valve failure can result in forced outages, equipment damage, or safety incidents. HYCOA® JR-33 Transfer Valves are specifically engineered to meet the demands of turbine lube oil systems, API 614 skids, and auxiliary oil circuits, delivering true zero leakage, ultra-low pressure drop, and long-term reliability.

Designed for Critical Turbine & Lube Oil Service

The JR-33 Series is widely used in:

  • Steam and gas turbine lube oil systems
  • API 614 lubrication skids
  • Main and standby pump transfer
  • Cooler changeover circuits
  • Filter and header isolation
  • Large frame turbine installations up to 8″

These are applications where valve performance directly impacts turbine health and plant availability.

Patented Shoe Seal Technology – Zero Leakage You Can Trust

At the core of the JR-33 is HYCOA’s patented Shoe Seal Lockdown design, developed specifically to eliminate the leakage issues common with plug and ball valves in turbine oil service.

Power-generation advantages:

  • Zero internal bypass between active and standby circuits
  • No cross-contamination between pumps, coolers, or filters
  • Maintains oil pressure and flow stability
  • Protects bearings, seals, and rotating equipment

Once engaged, the Shoe Seal mechanically locks into position, ensuring sealing integrity even during pressure transients and thermal cycling.

No Frictional Drag During Transfer

JR-33 valves are designed with zero frictional drag when transitioning between flow paths.

Why this matters in turbine systems:

  • Smooth, predictable changeover between duty and standby equipment
  • Reduced wear on sealing surfaces
  • Consistent performance during frequent switching
  • Longer service intervals and fewer outages

This design ensures repeatable, reliable transfer when it matters most—during upset or emergency conditions.

Positive Mechanical Lockdown – No Springs to Fail

Unlike traditional valves that rely on springs to maintain sealing force, the JR-33 uses a positive mechanical lockdown.

Benefits for power plants:

  • No spring fatigue or loss of preload over time
  • Stable sealing force under high pressure and temperature
  • Reliable operation during continuous service and long dwell times

This design eliminates a common failure mode in conventional transfer valves.

Exceptionally Low Pressure Drop – Protects Oil System Performance

Pressure loss in turbine oil systems can lead to reduced bearing protection and increased pump energy consumption. The JR-33 valve is engineered for exceptionally low pressure drop, as validated by published flow curves.

Results include:

  • Improved lube oil delivery to critical bearings
  • Reduced pump horsepower requirements
  • More stable system pressures during transfer
  • Improved overall system efficiency

Heavy-Duty Fabricated Steel Construction for Plant Environments

JR-33 valve bodies are fabricated from heavy-wall steel and designed for:

  • Class 150 and Class 300 ANSI flanges
  • High vibration environments
  • Continuous elevated temperature operation
  • Long service life in turbine halls and skid installations

This construction ensures durability in base-load, cycling, and peaking plant operations.

Direct Retrofit Replacement for Plug Valves

HYCOA JR-33 valves are commonly used as drop-in replacements for legacy plug valves in power plants.

Retrofit advantages:

  • No piping modifications required
  • Minimal outage time
  • Immediate performance improvement
  • Eliminates chronic plug valve leakage issues

Many plants install JR-33 valves as part of reliability improvement and life-extension programs.

Stainless Steel Internal Trim for Lube Oil Compatibility

All critical internal trim and moving components are available in stainless steel, providing:

  • Excellent compatibility with turbine and hydraulic oils
  • Resistance to corrosion and varnish buildup
  • Long-term dimensional stability
  • Consistent sealing over years of service

Material options allow optimization for specific oil chemistries and operating temperatures.

Low Operating Torque – Safer, Faster Manual Operation

The JR-33 requires significantly less torque than traditional transfer valves.

Operational benefits:

  • Easy manual operation during routine and emergency transfers
  • No need for oversized handles or gear operators
  • Reduced operator fatigue
  • Improved safety during critical switching events

No External Lubrication Required

JR-33 valves are designed to operate without external lubrication systems, eliminating:

  • Additional maintenance tasks
  • Risk of lubricant contamination
  • Failure points associated with grease systems

This is especially valuable in clean turbine oil environments.

High Pressure Capability for Demanding Systems

With pressure ratings up to 1600 PSI, the JR-33 is suitable for:

  • High-pressure turbine auxiliary oil systems
  • Hydraulic and control oil circuits
  • OEM skid applications

Compact Design for Skid & Turbine Hall Installations

The compact, center-body design allows installation in tight spaces, making the JR-33 ideal for:

  • OEM skid packages
  • Retrofit installations
  • Congested turbine halls and pipe racks

Flexible Configurations for Power Plant Systems

JR-33 valves are available in multiple configurations to meet power-generation requirements:

  • 3-Way Transfer Valves
  • 6-Way Transfer Valves
  • Twin 3-Way (Dual Circuit) Designs
  • Same-side, opposite-side, or inline porting
  • Equalizing/fill lines using ball or globe valves

This flexibility allows precise matching to plant-specific lube oil architectures.

Proven in Power Generation Worldwide

HYCOA JR-33 Transfer Valves are installed in:

  • Steam turbine lube oil systems
  • Large frame gas turbines
  • Combined-cycle power plants
  • Power plant retrofits replacing plug valves
  • API 614 lubrication skids

They are selected by engineers who demand zero leakage, predictable transfer, and long-term reliability.

The Trusted Choice for Turbine Protection

When turbine uptime, equipment protection, and operator safety are non-negotiable, HYCOA JR-33 Transfer Valves deliver proven performance. Backed by patented technology and decades of power-generation experience, the JR-33 sets the standard for high-reliability transfer valves in critical turbine systems.