GH3161-22.00B Elbow Assembly for Sichuan Honghua Mud Pump HHF-1000

1

GH3161-22.01.00A

Seat, pressure gauge

Stainless steel 304 (precision machined for pressure gauge fit, pressure-resistant up to 30MPa)

1. Thread wear from repeated pressure gauge installation/disassembly; 2. Corrosion from chemical components in mud; 3. Seal failure from impurity contamination.

1. Apply high-pressure thread sealant before installing the pressure gauge; 2. Use specialized wrenches to avoid thread slipping; 3. Inspect thread integrity quarterly.

2

GH3161-22.02.00B

Safety valve seat

Stainless steel 316 (quenched and tempered for high strength, compatible with standard safety valves)

1. Internal erosion from high-velocity fluid during overpressure relief; 2. Wear from safety valve contact; 3. Corrosion leading to poor sealing.

1. Ensure precise alignment with the safety valve during installation; 2. Inspect internal surfaces annually for erosion pits; 3. Clean thoroughly before reassembly.

3

GH3161-22.03.00A

Discharging cross

Carbon steel Q355B (surface anti-corrosion epoxy coating, thickened wall for high pressure)

1. Stress cracking from uneven fluid pressure; 2. Corrosion from mud and humid air; 3. Impact damage from construction debris.

1. Avoid sudden fluid pressure fluctuations; 2. Inspect coating integrity quarterly and reapply if peeling; 3. Install a protective shield in debris-prone areas.

1

GH3161-22.04

Bolt：1 1/16-8UN-2A×170

Alloy steel 40Cr (quenched and tempered, surface zinc-plated for corrosion resistance)

1. Fatigue fracture from long-term vibration; 2. Thread wear from repeated assembly/disassembly; 3. Corrosion leading to seized threads.

1. Torque to 95-105N·m (compliant with UN 2A thread standards); 2. Tighten in diagonal order for uniform force; 3. Apply anti-rust thread lubricant.

2

GH3161-22.05

Nut：1 1/16-8UN-2B（SPL）

Carbon steel 10B21 (heat-treated, surface zinc-plated)

1. Thread stripping from over-tightening; 2. Loosening due to vibration; 3. Corrosion reducing clamping force.

1. Use torque wrenches to avoid over-force; 2. Pair with lock washers for anti-loosening; 3. Inspect and retighten monthly to compensate for vibration.

1

GH3161-22.06

Ring gasket：R27

Graphite-reinforced PTFE (high-temperature and high-pressure resistant, oil-proof)

1. Wear from repeated assembly/disassembly; 2. Deformation under high pressure; 3. Contamination leading to seal gaps.

1. Clean sealing surfaces before installation to remove debris; 2. Avoid over-tightening to prevent deformation; 3. Replace every 12 months or if seal failure occurs.

3

277

Sealant：277

High-pressure anaerobic sealant (temperature-resistant -50℃~150℃, compatible with metal surfaces)

1. Deterioration from high temperature and oil contact; 2. Poor adhesion due to contaminated surfaces; 3. Expiration of service life.

1. Use before expiration and store in a cool, dry environment; 2. Clean and dry surfaces before application; 3. Allow sufficient curing time (24 hours at room temperature) before pressurizing.

1

Are these parts compatible with other elbow assemblies or mud pumps?

No. All parts are custom-designed for the GH3161-22.00B elbow assembly and Sichuan Honghua HHF-1000 mud pump. Thread specifications (1 1/16-8UN) and dimensions are exclusive to this match, so misuse may cause leakage or structural failure.

2

How often should sealing components and sealant be replaced?

Replace R27 ring gaskets every 12 months; reapply 277 sealant during each disassembly and assembly. For harsh environments with frequent pressure fluctuations, shorten the gasket replacement cycle to 8 months to ensure sealing reliability.

3

What precautions should be taken when installing the bolts and nuts?

Use UN-standard wrenches to avoid thread damage, torque bolts to 95-105N·m (compliant with UN 2A standards), and tighten in diagonal order for uniform force. Pair nuts with lock washers to prevent vibration-induced loosening, and inspect monthly.