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Zero-Leakage Transfer Valves Engineered for Power Generation & Turbine Systems
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 applications where valve performance directly impacts turbine health and plant availability. These are high-stakes environments where conventional valves routinely fail to deliver the reliability required.
Proven in Power Generation Worldwide
HYCOA JR-33 Transfer Valves are installed in facilities worldwide, selected by engineers who demand zero leakage, predictable transfer, and long-term reliability.
Key Engineering Advantages
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. Once engaged, the Shoe Seal mechanically locks into position, ensuring sealing integrity even during pressure transients and thermal cycling.
- 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
No Frictional Drag During Transfer
JR-33 valves are designed with zero frictional drag when transitioning between flow paths. This ensures repeatable, reliable transfer when it matters most — during upset or emergency conditions.
- Smooth, predictable changeover between duty and standby equipment
- Reduced wear on sealing surfaces
- Consistent performance during frequent switching
- Longer service intervals and fewer outages
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. This eliminates a common failure mode in conventional transfer valves.
- 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
Direct Retrofit Replacement for Plug Valves
HYCOA JR-33 valves are commonly used as drop-in replacements for legacy plug valves in power plants. Many plants install JR-33 valves as part of reliability improvement and life-extension programs.
- No piping modifications required
- Minimal outage time
- Immediate performance improvement
- Eliminates chronic plug valve leakage issues
Additional Performance Features
Exceptionally Low Pressure Drop
Engineered for minimal pressure loss, protecting lube oil delivery to critical bearings, reducing pump horsepower requirements, and improving overall system efficiency.
Heavy-Duty Fabricated Steel Construction
Fabricated from heavy-wall steel for Class 150 and Class 300 ANSI flanges. Designed for high vibration environments and continuous elevated temperature operation in base-load, cycling, and peaking plants.
Stainless Steel Internal Trim
All critical internal trim and moving components available in stainless steel, providing excellent compatibility with turbine and hydraulic oils, resistance to corrosion and varnish buildup, and long-term dimensional stability.
Low Operating Torque
Requires significantly less torque than traditional transfer valves — no oversized handles or gear operators needed. Improves safety during critical switching events and reduces operator fatigue.
No External Lubrication Required
Designed to operate without external lubrication systems, eliminating additional maintenance tasks, risk of lubricant contamination, and failure points associated with grease systems.
High Pressure Capability
Pressure ratings up to 1,600 PSI — suitable for high-pressure turbine auxiliary oil systems, hydraulic and control oil circuits, and OEM skid applications.
Flexible Configurations for Power Plant Systems
JR-33 valves are available in multiple configurations to meet power-generation requirements, with same-side, opposite-side, or inline porting and equalizing/fill lines using ball or globe valves.
Frequently Asked Questions
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.
HYCOA® JR-33
Select a Valve
- JR3
3-Way Transfer Valve
Single flow path switching
- TP
3-Way Twin-Pak
Inlet + outlet in one body
- 6SS
6-Way Same-Side
Most popular duplex config
- 6IL
6-Way Inline
Straight-through piping
- 6OS
6-Way Opposite Side
Opposing supply & return lines
- HIC
HICORP Transfer Valves
2″ – 12″ large-bore service
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