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General| Brand | MERCER |
|---|---|
| Model | 9100 Series |
| Category | Control Unit |
| Language | English |
Check for issues that may restrict valve operation, corrosion, damage, seal wire integrity, and external surface conditions.
Verify set pressure according to ASME BPVC and NB-18 standards using correct test fluid and procedures.
Verify disk and seat seal integrity using methods like API STD 527, ensuring zero bubbles for soft seats.
Testing the valve while installed, offering advantages but with reduced accessibility and potential inaccuracies.
Thorough testing in a shop environment with specialized equipment, though it may cause delays.
Portable testing units offering convenience but with limitations on valve types and sizes.
Using calibrated gauges with specified accuracy for set pressure and leak checking.
Measuring disk travel from closed to fully open position using specific apparatus.
List of tools required for disassembling and assembling valve components.
Recommended lubricants and thread retainers for valve assembly.
Step-by-step guide for disassembling the 1" body bottom entry pressure relief valve.
Step-by-step guide for disassembling the 2" body bottom entry pressure relief valve.
Step-by-step guide for disassembling the top entry pressure relief valve.
Instructions for removing the lift lever components for bottom entry valves.
Instructions for removing the lift lever components for top entry valves.
Guidelines for cleaning valve parts and applying appropriate lubricants.
Step-by-step guide for reassembling the 1" body bottom entry pressure relief valve.
Step-by-step guide for reassembling the 2" body bottom entry pressure relief valve.
Step-by-step guide for reassembling the top entry pressure relief valve.
Instructions for reassembling lift lever components for bottom entry valves.
Instructions for reassembling lift lever components for top entry valves.
Compensation for temperature and backpressure effects on set pressure.
Procedure for adjusting and verifying the set pressure according to ASME PTC 25.
Code system for identifying valve configurations based on materials and design.
Code system for identifying specific repair kits for pressure relief valves.
Diagram showing components of the 1" body bottom entry valve.
Diagram showing components of the 2" body bottom entry valve.
Diagram showing components of the top entry threaded bonnet valve.
Diagram showing components of the top entry bolted bonnet valve.
Cross-sectional view detailing the internal parts of the 1" body bottom entry valve.
Cross-sectional view detailing the internal parts of the 2" body bottom entry valve.
Cross-sectional view detailing the internal parts of the top entry threaded bonnet valve.
Cross-sectional view detailing the internal parts of the top entry bolted bonnet valve.
