GH3101-27.00 KB-75 Surge Damper for Sichuan Honghua Mud Pump HHF-1000

1

GH3101-27.03.00

Air bag

Fluororubber (FKM) with nylon fiber reinforcement (pressure-resistant up to 30MPa)

1. Aging and cracking from long-term exposure to high-pressure fluid and high temperature; 2. Damage from sharp impurities in the fluid; 3. Over-inflation leading to structural fatigue.

1. Maintain inflation pressure within 0.3~0.5MPa (below system working pressure); 2. Filter fluid to remove sharp impurities; 3. Replace every 18 months or if surface cracks exceed 1mm.

1

GH3101-27.01

Ring gasket：R39

Graphite-reinforced polytetrafluoroethylene (PTFE) (high-temperature and high-pressure resistant)

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

1. Clean sealing surfaces before installation to avoid debris; 2. Avoid over-tightening to prevent deformation; 3. Replace every 12 months or if seal gaps exceed 0.2mm.

2

GH3101-27.02

Base plug

Stainless steel 304 (quenched and tempered for high-pressure resistance)

1. Thread wear from repeated disassembly; 2. Corrosion from chemical components in the mud; 3. Impact damage from construction debris.

1. Apply high-pressure thread sealant before installation; 2. Use specialized wrenches to avoid thread slipping; 3. Inspect for corrosion monthly and touch up with anti-rust coating if needed.

3

GH3101-27.04.00

Shell assembly

Carbon steel Q355B (surface sandblasting + epoxy anti-corrosion coating)

1. Impact deformation from falling debris; 2. Coating peeling leading to rust and corrosion; 3. Stress cracking from uneven pressure.

1. Install a protective shield to avoid impact; 2. Inspect coating integrity quarterly and reapply if peeling; 3. Ensure uniform pressure distribution when assembling.

4

GH3101-27.05

Cover

Carbon steel Q355B (surface anti-rust paint + oil-resistant coating)

1. Wear at the sealing interface; 2. Corrosion from humid air and mud splashes; 3. Deformation from improper tightening.

1. Tighten fasteners evenly to ensure sealing; 2. Clean surface mud regularly; 3. Replace if deformation causes poor sealing.

5

GH3101-27.10

Washer

Spring steel 65Mn (heat-treated for pressure resistance)

1. Deformation under high pressure; 2. Rusting leading to reduced load-bearing capacity; 3. Wear from friction with components.

1. Match washer size with fastener specifications; 2. Replace if deformation exceeds 0.1mm; 3. Store in a dry environment to avoid rust.

1

GH3101-27.06

T-joint：NPT1/4

Stainless steel 304

1. Eddy current erosion at the joint from high-velocity fluid; 2. Thread wear from repeated assembly; 3. Stress concentration from pipeline misalignment.

1. Ensure pipeline alignment during installation; 2. Apply PTFE thread sealant for enhanced sealing; 3. Inspect for erosion pits every 6 months.

2

GH3101-27.07

Connector：NPT1/4

Stainless steel 304

1. Corrosion from acidic/alkaline mud components; 2. Thread damage from over-tightening; 3. Seal failure from contamination.

1. Avoid contact with strong corrosive media; 2. Torque to 25-30N·m (compliant with NPT 1/4 standards); 3. Clean threads before installation.

3

GH3101-27.09.00

Bleeder valve

Stainless steel 316 (valve core: PTFE)

1. Valve core wear from repeated opening/closing; 2. Clogging from fluid impurities; 3. Corrosion leading to seal failure.

1. Open/close the valve slowly to reduce wear; 2. Flush regularly to remove impurities; 3. Inspect valve core seal annually and replace if needed.

4

JZR3-L8

Check valve

Stainless steel 316 (valve disc: wear-resistant alloy)

1. Valve disc wear from fluid impact; 2. Clogging from impurities leading to backflow; 3. Spring fatigue reducing closing force.

1. Maintain fluid cleanliness to avoid clogging; 2. Inspect valve disc and spring every 8 months; 3. Replace spring if closing force decreases by 20%.

5

GH3101-27.11.00

Charging Hose of Damper

Synthetic rubber (inner layer: nitrile rubber; reinforcement: steel wire braid)

1. Aging and cracking from high pressure and temperature; 2. Wear from contact with other components; 3. Fatigue from repeated bending.

1. Avoid bending beyond the minimum radius (≥8×hose diameter); 2. Do not exceed working pressure (25MPa); 3. Replace every 12 months or if surface cracks appear.

1

GH3101-27.08.00

Guard, pressure gauge

Carbon steel Q235B (surface galvanized for anti-corrosion)

1. Impact damage from construction debris; 2. Rusting in humid environments; 3. Deformation from improper handling.

1. Ensure the guard is firmly installed before operation; 2. Inspect for rust monthly and touch up galvanizing if needed; 3. Avoid collision with heavy objects.

2

Y-60

Pressure gauge：0～25MPa（0～3630psi）

Brass case; glass lens; stainless steel pressure tube

1. Lens damage from impact; 2. Internal component failure from pressure spikes; 3. Corrosion leading to inaccurate readings.

1. Keep the pressure gauge guard intact; 2. Avoid sudden pressure spikes exceeding 25MPa; 3. Calibrate every 6 months to ensure reading accuracy (compliant with GB/T 1226-2017).

1

Are these parts compatible with other surge damper models or mud pumps?

No. All parts are custom-designed for the GH3101-27.00 KB-75 surge damper and Sichuan Honghua HHF-1000 mud pump. Dimensions, pressure resistance, and thread specifications (NPT1/4) are exclusive to this match, so misuse may cause equipment failure.

2

How often should the air bag and pressure gauge be maintained or replaced?

Replace the air bag every 18 months; calibrate the pressure gauge every 6 months and replace if it fails calibration (per GB/T 1226-2017). For harsh working conditions with frequent pressure spikes, shorten the cycle by 30%.

3

What precautions should be taken when installing NPT1/4 connectors and joints?

Use NPT-standard wrenches to avoid thread damage, apply PTFE thread sealant for high-pressure sealing, and torque to 25-30N·m. Ensure pipeline alignment to reduce stress concentration, preventing leakage and erosion.