Zero Leakage and Zero Frictional Drag
Northeast Controls Inc.
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HYCOA® 6-Way Transfer Valve

6-Way Transfer Valve Maintenance & Repair Instructions

Engineered for reliability, maintainability, and zero-leakage performance. The HYCOA 6-Way Transfer Valve is purpose-built for critical fluid systems where uptime, safety, and controlled transfer are non-negotiable.

Built for Efficient Maintenance in Demanding Environments

The HYCOA® 6-Way Transfer Valve is purpose-built for critical fluid systems where uptime, safety, and controlled transfer are non-negotiable. Its internal architecture is designed not only for zero-leakage operation, but also for efficient maintenance, repeatable sealing performance, and long service life — even in the most demanding power generation and industrial environments.

Every step in the maintenance process reflects a valve designed by engineers who understand plant realities. The result is shorter maintenance windows and higher confidence during reassembly.

Request Spare Parts 201-419-6111

The Bottom Line

The HYCOA® 6-Way Transfer Valve is not just designed to perform — it is designed to be maintained correctly, repeatedly, and efficiently, without compromising sealing integrity. This is a transfer valve engineered for long-term ownership value.

Zero-leakage performance
Precision sealing pad control
Modular, service-friendly internal design
Proven reliability in critical systems

Video Guide

Transfer Valve Rebuild — Step by Step

Watch a complete HYCOA Transfer Valve rebuild from disassembly through reassembly. This video covers internal stack removal, seal replacement, sealing pad indexing, and reassembly to zero-leakage performance.

Disassembly

Internal stack removal

Seal Replacement

Lip seals, O-rings & retainers

Pad Indexing

Precision sealing pad alignment

Reassembly

Return to zero-leakage spec

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Step-by-Step Guide

Changing Soft Parts & Shoe Assemblies

HYCOA / JR-33 6-Way Transfer Valve — based on the official JR33 IOM and 6-Way repair instructions. Follow each step in sequence for a safe, correct rebuild.

Step 1 of 10

Before You Start

Shut down the system, isolate the valve, and relieve ALL pressure before removing any parts.

Safety First

  1. 1Shut down the system.
  2. 2Isolate the valve from the process.
  3. 3Relieve all pressure.
  4. 4Drain the valve and connected piping as needed.
  5. 5Make sure the valve is safe to work on before removing any parts.

Recommended Tools

  • Pin punches
  • Wrenches / socket tools
  • Compatible lubricant for seals
  • Replacement soft parts kit
  • Replacement shoe / sealing pad assemblies if required
  • Clean workbench
  • Marker or notebook for recording shoe turns
ProgressStep 1 of 10

Quick Technician Checklist

0 / 14 complete

JR33 6-Way Transfer Valve

Installation & Operation Manual

The following procedures are drawn directly from the Northeast Controls JR33 Operation and Maintenance Manual. Follow all steps carefully and ensure the system is fully depressurized before beginning any work.

Section 1

Internal Stack Removal Procedure

Fully loosen the "T" Handle (counterclockwise) before beginning removal.

  1. 1.1Turn "T" handle counterclockwise to fully loosen.
  2. 1.2Push operating handle to the down position.
  3. 1.2.1Place operating handle in middle position.
  4. 1.3Remove socket head cap screws.
  5. 1.4Pull internal stack assembly out of valve.
  6. 1.4.1Do not allow sealing shoes to rotate about their mounting screws as the internal stack is removed.
  7. 1.4.2Exercise care when pulling dividing plate lip seal past edges of port openings.

Section 2

Internal Stack Disassembly and Seal Replacement

Disassembly Steps

  1. 2.1Fully loosen "T" handle (counterclockwise).
  2. 2.2Push ball handle to the full down position.
  3. 2.3Remove Roll Pin 1 with pin punch.
  4. 2.3.1For 1½", 2", & 3" valves use a 3/16" punch.
  5. 2.3.2For 4", 6", & 8" valves use a 1/4" punch.
  6. 2.4Remove ball handle.
  7. 2.5Slide bonnet with "T" handle off shaft.
  8. 2.5.1Allows access to upper shaft seal.
  9. 2.6Position shaft so that Roll Pin 2 is visible in hole.
  10. 2.6.1Remove pin with appropriate punch.
  11. 2.7Remove shoe/slide link assembly from sleeve.
  12. 2.8Slide upper sleeve off shaft.
  13. 2.8.1Allows access to lower shaft seal.
  14. 2.8.2There is normally no need to remove lower sleeve assembly.

2.9 — Replace O-Ring Seals and Rings

  1. 2.9.1Lubricate all O-rings/seals.
  2. 2.9.2Upper shaft seal O-ring lip faces down.
  3. 2.9.2.1Install Delrin seal retainer.
  4. 2.9.3Lower shaft seal O-ring lip faces up.
  5. 2.9.3.1Install Delrin seal retainer.
  6. 2.9.4Divider plate seal O-ring lip faces up.

2.10 — Remove and Replace Shoes if Necessary

  1. 2.10.1Turn counterclockwise to separate shoe from slide assembly.
  2. 2.10.2Refer to Section 3 for shoe adjustment.

2.11–2.12 — Reassembly

  1. 2.11Reassemble stack on stable surface to ensure proper roll pin replacement.
  2. 2.11.1Ensure there are no gaps between the sleeve assemblies and bonnet and divider plate.
  3. 2.11.2Insert Roll Pin 2 through sleeve/shaft/link assembly.
  4. 2.11.3Replace bonnet assembly and insert Roll Pin 1 through shaft and ball handle.
  5. 2.12Reinstall internal stack into valve body.
  6. 2.12.1Exercise care when pushing dividing plate seal past edges of port openings.

Section 3

Shoe Adjustment Procedure

  1. 3.1Turn new shoe clockwise (tighten) until shoe is tight against the slide. Then turn the shoe counterclockwise to the vertical position (minimal partial turn).
  2. 3.2Turn shoe counterclockwise per the table below to properly align the shaft/shoe assembly.
Valve SizeCounterclockwise Turns
1-1/2"1.5 turns
2"1.5 turns
3"5 turns
4"5 turns
6"5 turns
8"5 turns

JR33 6-Way Valve

Changeover Operating Instructions

  1. 1.0Open Equalizing Valve

    1.1 — Allow pressure to equalize.

    1.2 — Due to capacitance effect, larger vessels may require several minutes to balance.

    1.3 — After the off-line vessel or piping is filled, ensure all vents, bleeds, or drain lines are closed so pressure will equalize.

  2. 2.0Loosen T Handle

    Turn the T Handle counterclockwise approximately 6–7 turns.

    DO NOT FORCE PAST STOP
  3. 3.0Unseat Sealing Shoes

    Push ball handle downward to unseat sealing shoes.

  4. 4.0Rotate Ball Handle

    Rotate ball handle 180°.

    4.1 — Red arrow points to OPEN ports.

  5. 5.0Seat Sealing Shoes

    Release the ball handle and turn the T Handle clockwise until sealing shoes are seated.

    HAND TIGHTEN ONLY — 20 IN-LB MAX
  6. 6.0Close Equalizing Valve

    Close equalizing valve.

Cap Screw Torque Specifications

Valve SizeCap ScrewTorque
2" and 3"1/2"-1375 ft-lbs
4" and 6"5/8"-11150 ft-lbs

Maintenance-Focused Design Features

Designed for Complete Internal Serviceability

Unlike conventional transfer valves that require extensive disassembly or complete valve removal, the HYCOA 6-Way Transfer Valve features a modular internal stack design.

  • Internal components are removed as a single assembly
  • Valve bodies remain installed in the line
  • Reduced outage time during inspections or seal replacement
  • Lower labor costs and safer maintenance procedures

Positive Sealing Control During Maintenance

The valve's dual-handle actuation system — including the T-Handle and Ball Handle — provides precise control of sealing pad position during operation and maintenance.

  • Sealing pads can be fully retracted before disassembly
  • Mechanical stops prevent over-travel and component damage
  • Controlled positioning protects sealing surfaces during service
  • Reduces risk of maintenance-induced failures and extends seal life

Precision-Engineered Internal Stack Assembly

At the heart of the valve is the Internal Stack, which integrates upper and lower sealing pads, slide/link assemblies, sleeves, separator plate, operating shaft, and multiple sealing elements.

  • Upper and lower sealing pads
  • Slide/link assemblies
  • Sleeves, separator plate, and operating shaft
  • Multiple sealing elements — lip seals, O-rings, retainers

Repeatable Sealing Pad Alignment for Zero Leakage

A critical feature of the HYCOA 6-Way Transfer Valve is its adjustable sealing pad system. Sealing pads are indexed and recorded during disassembly, then reinstalled to the exact original position.

  • Pads indexed and recorded during disassembly
  • Reinstalled to exact original position
  • Ensures consistent sealing geometry after maintenance
  • Eliminates guesswork — valve returns to factory-level sealing performance

Robust Sealing System Designed for Long Life

The valve incorporates multiple lip seals, O-rings, and seal retainers, each positioned to isolate pressure zones and prevent leakage between flow paths.

  • Superior pressure containment
  • Protection against internal bypass
  • Long seal life when properly lubricated with compatible fluids
  • Excellent performance in oil and hydraulic services

Heavy-Duty Mechanical Construction

Internal components such as the operating shaft, sleeves, and slide/link assemblies are designed for high mechanical strength, resistance to wear during frequent cycling, and stable alignment under pressure and temperature variation.

  • High mechanical strength throughout
  • Resistance to wear during frequent cycling
  • Stable alignment under pressure and temperature variation
  • Roll pins and linkages sized to prevent binding

Maintenance Designed for the Real World

Every step in the maintenance process reflects a valve designed by engineers who understand plant realities.

  • Roll pins are sized to prevent protrusion and binding
  • Seals are easily accessible and replaceable
  • Lubrication requirements are clearly defined
  • Components are modular and intuitive

Supports Reliability-Centered Maintenance

The HYCOA 6-Way Transfer Valve is ideal for facilities practicing reliability-centered maintenance.

  • Predictable service procedures
  • Minimal disturbance to piping systems
  • Clear inspection points
  • Consistent post-maintenance performance

Designed for Power Generation & Critical Oil Systems

These are applications where internal leakage or maintenance errors cannot be tolerated.

  • Turbine lube oil transfer systems
  • API 614 lubrication skids
  • Main/standby pump changeover circuits
  • Cooler and filter transfer applications
  • High-reliability oil and hydraulic systems

Related Products

6-Way Inline Porting6-Way Same Side Porting3-Way Transfer ValvePower Generation & Turbine Systems

Need Spare Parts or Technical Support?

Our team can provide replacement seal kits, internal stack assemblies, and technical guidance for HYCOA 6-Way Transfer Valve maintenance.

Request Spare Parts 201-419-6111

HYCOA® JR-33

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