Installation Specifications for Servo Valve Gasket TY9100B.1

1. Pre-installation Preparation

Preparation is the foundation of a successful seal.

• Component Selection: Ensure the use of the TY9100B.1 gasket, specifically designed for adjustable axial fans. This model features oil-resistant, high-performance sealing materials optimized for servo valve environments.

• Tooling & Hygiene: Prepare clean, specialized tools, lint-free cloths, and a lubricant/grease compatible with the system’s hydraulic oil.

• PPE: Use protective gloves and standard safety gear to prevent manual contamination of the hydraulic interface.

2. Shutdown, Depressurization, and Site Cleaning

• Power Down: Deactivate the power source for both the fan and the hydraulic system to ensure the equipment is at a complete standstill.

• Isolation: Close the upstream and downstream isolation valves to cut off the flow of hydraulic oil.

• Pressure Relief: Slowly open the bleed valve to release residual pressure within the pipelines and the servo valve body. This prevents accidental oil spray during disassembly.

• Environmental Control: Clean the installation area of all dust, grease, and debris. A pristine environment is critical to prevent "silent killers" (micro-particles) from entering the precision internals of the servo valve.

3. Key Installation Procedures

Strict adherence to these steps is mandatory:

• Step 1: Surface Preparation. After removing the old gasket, use a lint-free cloth to wipe the mounting seat and sealing cavity. Surfaces must be free of impurities, oil, scratches, or corrosion. If minor damage is found on the sealing surface, use fine-grit sandpaper to lightly buff it flat.

• Step 2: Gasket Inspection & Lubrication. Inspect the new TY9100B.1 gasket for cracks, deformation, or manufacturing defects. Apply a thin, uniform layer of compatible grease to the sealing surface. Caution: Do not over-apply grease, as excess lubricant can contaminate the hydraulic fluid.

• Step 3: Precise Positioning. Place the gasket steadily into the mounting groove. Ensure it is perfectly flush and centered. Misalignment or skewing will inevitably lead to sealing gaps and premature failure.

• Step 4: Torque-Controlled Fastening. Use a torque wrench to tighten the mounting bolts or end caps to the specified values.

  • Avoid Over-tightening: This can deform the gasket or crack the servo valve housing.

  • Avoid Under-tightening: This results in an insufficient seal.

4. Post-Installation Inspection and Commissioning

• Static Leak Test: Close the bleed valve and slowly open the isolation valves. Observe the gasket interface for any signs of seepage.

• Dynamic Monitoring: Start the hydraulic system and fan. Monitor the servo valve’s pressure and flow parameters for stability. Listen for abnormal noise and watch for leaks during operation.

• Corrective Action: If a leak is detected, immediately shut down and depressurize the system. Re-inspect the seating of the gasket and the integrity of the sealing surface before re-testing.

HKZX-2025-12-17