Mud Pump Parts Supply Guide for PZ Series

1

64A27, 64AA9, 64A5

High-chromium alloy steel (base), nickel plating (anti-corrosion coating)

1. Abrasive drilling mud eroding surface; 2. High pressure causing metal fatigue; 3. Chemical corrosion from acidic mud.

1. Filter drilling mud to remove large debris; 2. Monitor pump pressure to stay within API 7K limits; 3. Apply anti-corrosion grease after cleaning.

2

79A238, 79A6

Tungsten carbide (wear-resistant layer), carbon steel (base)

1. Extreme abrasion from heavy solids in mud; 2. Thermal stress from rapid temperature changes; 3. Misalignment causing uneven wear.

1. Maintain mud solids content below 15%; 2. Avoid rapid pump startup/shutdown; 3. Align parts per manufacturer’s torque specifications.

3

75A20, 75A196, 75A57, 75A18, 75A4, 75A221, 75A195, 75A1

Alloy steel (base), ceramic coating (wear-resistant)

1. Abrasive wear from long-term mud flow; 2. Coating peeling due to improper cleaning; 3. Cavitation damage from low suction pressure.

1. Inspect coating for cracks monthly; 2. Clean parts with non-abrasive tools; 3. Ensure adequate suction line flow to prevent cavitation.

1

50B5 (2 units), 50B34

Nitrile rubber (seal), carbon steel (valve core), zinc plating (anti-corrosion)

1. Mud particle intrusion damaging seal surfaces; 2. High pressure deforming seal lips; 3. Moisture causing valve core rust.

1. Use high-efficiency mud filters; 2. Replace seals when pump pressure exceeds 15,000 psi; 3. Dry parts thoroughly after disassembly.

2

50V44

Fluorine rubber (seal), stainless steel (valve body)

1. Chemical corrosion from alkaline mud; 2. High temperature (over 120℃) aging seals; 3. Valve seat wear from repeated cycling.

1. Verify mud pH compatibility (6-8 ideal); 2. Cool pump housing to maintain operating temp; 3. Inspect valve seats quarterly for wear.

1

200PZGO01A, 200PZGO06, 200PZG052, 200PZG053, 200PZG247, 200PZG309, 200PZG315, 200PZG165, 200PZG715

High-strength alloy steel (body), anti-corrosion coating

1. Structural fatigue from high-frequency vibration; 2. Corrosion from drilling fluid; 3. Misalignment causing uneven stress.

1. Use anti-vibration mounts; 2. Clean parts with neutral detergent after use; 3. Align with pump shaft per calibration guidelines.

2

201PZG253, 201PZG715, 201PZG315, 201PZG052

Titanium alloy (lightweight models), carbon steel (heavy-duty models)

1. Impact damage from pump cavitation; 2. Thermal stress from extreme operating temps; 3. Fastener loosening from vibration.

1. Maintain steady suction pressure; 2. Install temperature sensors; 3. Retorque fasteners weekly per API 7K specs.

3

202PZG052, 203PZG052, 206PZL052, 200PZL122

Alloy steel (body), ceramic inserts (wear zones)

1. Abrasive wear from mud flow; 2. Insert detachment due to thermal cycling; 3. Corrosion in saltwater drilling environments.

1. Limit exposure to saltwater; 2. Avoid rapid temperature changes; 3. Inspect inserts for detachment monthly.

1

PZ715, 25C1788, 25C1818, 25C1839, 35C19, 5C24, 25F13

Stainless steel (hardware), brass (fittings), plastic (inserts)

1. Corrosion from harsh drilling fluids; 2. Mechanical wear from repeated assembly; 3. UV degradation (outdoor storage).

1. Apply industrial anti-corrosion spray; 2. Use torque wrenches for assembly; 3. Store in sealed containers away from sunlight.

2

4P0237202FXT052, KXG842, 2012526, 40L17, 27H11, 64E2, 64E3, 64E5, 75LM6, 60DD35

Alloy steel (fasteners), bronze (bushings), rubber (gaskets)

1. Fatigue from high vibration; 2. Bushing wear from misalignment; 3. Gasket aging from chemical exposure.

1. Replace fasteners every 6 months; 2. Lubricate bushings with lithium-based grease; 3. Match gaskets to mud chemical composition.

3

75A43 (None), 200PZL122 (None), 201PZG052 (None), 202PZG052 (None), 203PZG052 (None), 200PZG165 (None), 64E5 (None)

Matching OEM materials (alloy steel, rubber, stainless steel)

1. Incompatible replacement parts causing stress; 2. Improper installation damaging mating components; 3. Lack of maintenance leading to buildup.

1. Use only OEM-compatible parts; 2. Follow installation manuals; 3. Clean mating surfaces before assembly.

Are these parts compatible with all PZ series mud pumps?

Yes, parts are tailored for PZ7, PZ8, PZ9, PZ10, PZ-PXL, and 200/201/202/203/206 compatible models. Each part meets OEM dimensions and API 7K/ISO 13628 standards for seamless fit.

How to determine when to replace A-series wear parts?

Replace when wear exceeds 0.5mm (per API 7K specs), or if you notice reduced pump efficiency, increased vibration, or fluid leakage. For heavy use, schedule quarterly inspections to prevent failure.

Do these parts work in saltwater drilling environments?

Yes, most parts have anti-corrosion coatings (nickel, ceramic) or are made of stainless steel/titanium alloy, suitable for saltwater. We recommend bi-annual anti-corrosion treatments for extended life.