wwaterjet 
Table 12-4 High Pressure Piping 20497330 | |||
Item | Part Number | Description | Quantity |
2 | 20498314 | Attenuator Assembly, .96L | 1 |
3 | 49830581 | Coupling, HP Bulkhead, .56 x .38 | 1 |
4 | 10094704 | HP Tube, .38 x 3.0 | 1 |
5 | 10078715 | HP Collar .38 | 4 |
6 | 10078129 | HP Gland, .38 | 4 |
7 | 20427739 | Pneumatic Valve/Actuator Assembly | 1 |
8 | 20498577 | HP Tube, Bent, .38 | 1 |
9 | 10078426 | HP Collar, .25 | 1 |
10 | 10078459 | HP Gland, .25 | 1 |
11 | 20498652 | HP Tube, Bent, .25 | 1 |
12 | 10079531 | Coupling, HP/HP, .56 x .38 | 2 |
13 | 20498280 | U-Bolt, 3.50 | 2 |
14 | 49883499 | Lock Washer, M12 | 4 |
15 | 49898729 | Flat Washer, M12 | 4 |
16 | 10078780 | Elbow, HP, .38 x .38 | 1 |
17 | 20498585 | HP Tube, Bent, .38 | 2 |
18 | 20499594 | Socket Head Screw, M14 x 2 x 20MM | 3 |
19 | 20499610 | Lock Washer, M14 | 3 |
20 | 05045497 | Pressure Gauge, 0-5000 psi | 1 |
21 | 20498610 | HP Tube, .38 | 1 |
22 | 20498618 | HP Tube, Bent, .38 | 1 |
23 | 10078590 | Tee, HP, .38 | 1 |
High-pressure piping in a waterjet system is a critical component that channels the pressurized water from the pump to the cutting head.
The integrity and proper installation of this piping are essential for maintaining the system's safety and efficiency, as it typically operates
under extremely high pressures, often exceeding 60,000 psi.
Key Components of High-Pressure Piping in a Waterjet System
1. High-Pressure Tubing: Usually made from stainless steel or other high-strength alloys to withstand the intense pressure. Commonly used materials include
316 stainless steel and high-strength alloys like Inconel.
2. Fittings and Connectors: Designed to provide secure and leak-proof connections between different sections of the piping and between the piping and other
components such as the pump and cutting head.
3. Pressure Relief Valves: These safety devices are crucial for preventing overpressure situations that could damage the system or pose a safety hazard.
4. Flow Control Valves: Regulate the flow and pressure of the water within the system, allowing for precise control of the cutting process.
5. Flexible Hoses: Used in certain sections to allow for movement and flexibility, especially near the cutting head. These hoses are reinforced to handle high pressures.
6. Support Brackets and Clamps: Ensure the piping is securely mounted and aligned, minimizing vibrations and potential stress points that could lead to failures.
Maintenance and Safety Tips
Regular Inspection: Check for any signs of wear, corrosion, or damage in the pipes, fittings, and connectors. Look for leaks or bulging sections that might indicate weakening.
Pressure Testing: Periodically test the system at operational pressure to ensure it can handle the load without any leaks or failures.
Proper Assembly: Ensure all fittings and connectors are tightened according to manufacturer specifications to prevent leaks. Use appropriate torque settings.
Cleanliness: Keep the piping and surrounding area clean to prevent debris from causing damage or blockages.
Replacement Schedule: Follow a regular replacement schedule for critical components like seals, gaskets, and hoses, even if no obvious wear is present, as these parts can
degrade over time under high pressure.
Troubleshooting Common Issues
Leaks: Can often be traced back to worn seals or improperly tightened fittings. Replace seals and ensure all connections are secure.
Pressure Drops: Could indicate a leak or blockage in the system. Inspect the entire piping network and clean or replace any obstructed sections.
Vibration and Noise: Excessive vibration can lead to premature wear and failure. Ensure all support brackets and clamps are secure and that the system is properly aligned.
Conclusion
High-pressure piping in a waterjet system is a critical element that requires careful installation, regular maintenance, and thorough inspection to ensure safe and efficient operation.
Adhering to best practices for maintenance and promptly addressing any issues that arise will help maintain the integrity and performance of the waterjet system.
