Core Purpose & Equipment Compatibility
This spare parts list is specifically compatible with mud pumps (NATIONAL 12P160, FB-1600, TRIPLEX PUMP, QYB42-125L), BRANDT DESANDER (SR-2, SE-16), Deublin rotary joints, and related drilling equipment. It caters to drilling operation teams, maintenance engineers, and procurement personnel who need standard-compliant, high-durability spare parts to minimize equipment downtime, ensure stable operation, and reduce maintenance costs in harsh oilfield and drilling scenarios.
Spare Parts Classification & Detailed Specifications
1. Pressure Gauges & Valves (Anti-Shock, Charging, Spring)
Pressure gauges and valves are critical for monitoring and regulating fluid pressure in drilling systems, preventing overpressure damage and ensuring safe operation. Suitable for high-pressure drilling scenarios, they offer anti-shock performance and precise control, reducing valve failure-related downtime.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | GAUGE PRESSURE ANTI-SHOCK PGE23.100-40MPa-II | / | PGE23.100-40MPa-II | Stainless Steel (Case) + Glass (Lens) + Copper Alloy (Sensing Element) | Internal sensing element damage from sudden pressure spikes (exceeding 40MPa) and lens cracking from mechanical impact on-site. | Install a pressure relief valve upstream to limit spikes; mount the gauge in a shielded location to avoid direct impact from tools or debris. |
2 | GAUGE, PRESSURE ANTI-SHOCK PGE23.100-40MPa-II | / | PGE23.100-40MPa-II | Stainless Steel (Case) + Glass (Lens) + Copper Alloy (Sensing Element) | Sensing element fatigue from frequent pressure fluctuations and lens fogging due to moisture ingress in humid drilling environments. | Calibrate the gauge every 3 months; use a moisture-resistant sealant around the lens edge to prevent humidity damage. |
3 | CHARGING VALVE AI-GT3-309 FOR 15 GAL ACCUMULATOR TYPE 15GAL 1600 | / | AI-GT3-309 | Alloy Steel (Body) + Nitrile Rubber (Seal) | Seal degradation from high-pressure fluid and valve seat wear caused by contaminated charging fluid. | Filter charging fluid to remove impurities; inspect the valve seal monthly and replace if leakage is detected. |
4 | SPRING VALVE FOR TRIPLEX PUMP 3GB-00-04 QB21-82 | / | 3GB-00-04 QB21-82 | Alloy Steel (Body + Spring) | Spring fatigue from repeated valve opening/closing cycles and corrosion from drilling mud seepage. | Inspect the spring for deformation every 500 operating hours; clean the valve body regularly to prevent mud buildup and corrosion. |
5 | INSERT, VALVE API 7 HIGH TEMPERATURE | NOV | 62400339 | High-Temperature Resistant Urethane | Thermal degradation from prolonged exposure to high-temperature drilling fluid (exceeding 180°C) and wear from fluid particle impact. | Monitor fluid temperature and avoid exceeding 180°C; use API 7-compliant filtration to reduce particle contamination. |
2. Mud Pump Liners & Wear Plates
Mud pump liners and wear plates are key wear-resistant components that withstand abrasive drilling mud and high pressure, protecting pump cylinders and extending overall pump service life. Compatible with NAT 12P160 and other models, they reduce maintenance frequency in heavy-duty drilling.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | 6-1/2″ STEEL LINER F/ NAT 12P160 | / | 1376G7 | High-Strength Alloy Steel | Abrasion from unfiltered, high-viscosity drilling mud and liner deformation due to improper installation torque. | Use dual-stage mud filtration; torque liner bolts to 580-620 FT-LB in compliance with API 8 standards. |
2 | PLATE : WEAR, LINER | Weatherford | 1231206 | Hardened Alloy Steel | Erosion from high-velocity mud flow and metal-to-metal contact if misaligned with the liner. | Align the wear plate precisely with the liner edge during installation; replace if wear exceeds 1.2mm in thickness. |
3 | P/N 1292266, Plate, Wear for mud pump 12-P-160 | / | 1292266 | Hardened Alloy Steel | Abrasion from mud particles and corrosion from sulfur-containing drilling fluids in 12-P-160 pump operations. | Apply anti-corrosion lubricant to the plate surface after each shift; inspect monthly for wear or corrosion spots. |
3. Mud Pump Pistons & Piston Rods
Mud pump pistons and piston rods are essential for sealing pump cylinders and transmitting power, ensuring efficient mud delivery under high pressure. They feature wear-resistant materials and precise machining, reducing leakage and pump inefficiency in harsh drilling conditions.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | QDTYF-00-06 Piston | / | QDTYF-00-06 | Alloy Steel (Rod) + Urethane (Seal) | Seal wear from abrasive mud particles and delamination due to uneven pressure distribution. | Maintain stable pump pressure within rated limits; clean the piston seal surface before reinstallation. |
2 | ROD PISTON FOR TRIPLEX PUMP 226QMD-14 QYB42-125L | / | 226QMD-14 QYB42-125L | High-Strength Alloy Steel | Bending fatigue from uneven piston force and corrosion from mud seepage at the seal interface. | Check rod straightness quarterly; replace worn seals promptly to prevent mud ingress and corrosion. |
3 | PISTON ROD (WITH ELASTIC STOP NUT) (FOR CLAMP ONLY, USE 1286C) | SOUTHWEST | 1286-32 | Alloy Steel (Rod) + Alloy Steel (Elastic Stop Nut) | Thread wear from repeated clamp installation/removal and rod surface damage from tool scratches. | Use thread lubricant during clamp attachment; avoid using pliers or sharp tools directly on the rod surface. |
4 | PISTON ROD LSPE 107.29.110.23 | LSPE | 107.29.110.23 | High-Strength Alloy Steel | Fatigue failure from prolonged high-load operation and corrosion from humid on-site environments. | Limit continuous operation to 8-hour shifts; clean and coat the rod with anti-rust oil after each use. |
5 | PISTON: LEGACY, 6,500 BULL NOSE LIP | Weatherford | 1250207 | Alloy Steel (Rod) + Urethane (Bull Nose Lip) | Lip wear from liner friction and damage from foreign particles trapped between the piston and liner. | Inspect the liner inner wall for debris before piston installation; replace the piston if the bull nose lip is cracked or worn. |
6 | PISTON COMPLETE, SUPREME SIZE: 6″ | NAT / MIS | 12180394 / S6 H-B14/15 | Alloy Steel (Rod) + Dual-Duro Urethane (Seal) | Seal degradation from high-temperature mud and wear from uneven liner contact. | Monitor mud temperature and avoid exceeding 150°C; check liner roundness monthly to prevent eccentric wear. |
4. Mud Pump Seals, Gaskets & Packings
Seals, gaskets, and packings prevent mud, oil, and fluid leakage in mud pumps, protecting internal components from corrosion and ensuring system efficiency. They are compatible with various pump models and designed to withstand high pressure and harsh drilling fluids.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | QDTYF-00-16 Seal Ring, Supply | / | QDTYF-00-16 | Nitrile Rubber (NBR) | Abrasion from fluid flow and chemical degradation from harsh mud additives. | Use mud additives compatible with NBR; replace the seal ring every 600 operating hours or if leakage occurs. |
2 | Face Seal Kit Deublin 30182502 | Deublin | 30182502 | Carbon Graphite (Face) + Stainless Steel (Seat) | Face wear from misalignment of rotary joints and contamination from dirt or mud. | Align rotary joints precisely during installation; keep the seal area clean to prevent debris ingress. |
3 | O-Ring Kit Deublin 30182503 | Deublin | 30182503 | Fluororubber (FKM) | Hardening from high temperature and damage from improper installation (over-stretching). | Install O-rings without over-stretching; store spare kits in a cool, dry place (below 25°C). |
4 | Mech Seal TUNG/TUNG 250 P25MS/TT | / | 250 P25MS/TT | Tungsten Carbide (Both Faces) | Face damage from dry running and corrosion from aggressive drilling fluids. | Ensure proper lubrication before starting the pump; avoid dry running the seal for more than 30 seconds. |
5 | GASKET, CROSSHEAD INSPECTION PLATE | GD | 200PZL715 | Compressed Fiber + Rubber Coating | Deformation from uneven inspection plate torque and moisture-induced degradation. | Torque inspection plate bolts evenly; replace the gasket every time the plate is removed. |
6 | RING, GASKET API R-44 | SW | R44D | API-Compliant Compressed Fiber | Wear from fluid pressure and damage from improper gasket alignment. | Align the gasket with the flange grooves precisely; torque flange bolts to API R-44 specified limits. |
7 | P/N 1540851, PACKING,CYLINDER HEAD (Seal , suction manifold) | / | 1540851 | Graphite-Impregnated Fiberglass | Packing wear from high-pressure fluid flow and hardening from prolonged exposure to high temperatures. | Adjust packing tension regularly to maintain a tight seal; replace every 800 operating hours. |
8 | DISCHARGE CONNECTOR / ADAPTOR PACKING F/ NAT 12P160 5K-6K PSI FE, 2976-1 | / | 2976-1 | Urethane | Erosion from high-velocity mud flow and deformation from connector misalignment. | Align the discharge connector properly with the adaptor; replace packing if pressure drops below 5K PSI. |
9 | DISCHARGE SPACER FLANGE SEAL F/ NAT 12P160 5K-6K PSI FE, 2976-3 | / | 2976-3 | Urethane | Wear from flange movement and chemical degradation from mud seepage. | Use flange sealant to prevent mud seepage; inspect the seal monthly for cracks or wear. |
5. Mud Pump Rods, Studs & Fasteners
Mud pump rods, studs, and fasteners (screws, locknuts, capscrews) transmit power and secure components, withstanding high mechanical loads and vibration. Made of high-strength materials, they ensure component stability and prevent loosening in harsh drilling conditions.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | QDTYF-00-04 Screw | / | QDTYF-00-04 | Alloy Steel | Thread wear from repeated installation/removal and corrosion from on-site moisture. | Use thread lubricant during installation; apply anti-rust spray to exposed threads after tightening. |
2 | LOCKNUT 226QMD-06 FOR TRIPLEX PUMP QYB42-125L | / | 226QMD-06 QYB42-125L | Alloy Steel | Thread wear from vibration and deformation from over-torquing. | Torque the locknut to the manufacturer’s specified limit; check tightness monthly to prevent vibration-induced loosening. |
3 | STUD, VALVE COVER SOUTHWEST | SW | 401554 | High-Strength Alloy Steel | Thread wear from repeated valve cover removal and corrosion from mud splashes. | Clean the stud threads before reinstallation; use thread sealant to prevent mud ingress and corrosion. |
4 | P/N 1292083, Rod , Intermediate for mud pump 12-P-160 | / | 1292083 | Alloy Steel | Bending fatigue from uneven load distribution and surface wear from baffle contact. | Check rod straightness quarterly; inspect baffle alignment to avoid excessive contact with the rod. |
5 | CAPSCREW, 4018-18 | / | 4018-18 | Alloy Steel | Head damage from improper tool use and thread wear from vibration. | Use the correct size socket wrench for installation; apply thread locker to prevent vibration-induced loosening. |
6 | P/N 7621016, Washer , 1/4″ Type “A” CAD Plate,for Baffel, Fluid (Baffel intermediate Rod ) 12-P-160 | / | 7621016 | Carbon Steel (CAD Plate Coated) | Corrosion from moisture and deformation from over-torquing the baffle fasteners. | Torque baffle fasteners to 40-45 FT-LB; replace washers if rust or deformation is visible. |
7 | WASHER PLAIN FOR TRIPLEX PUMP 3GB-00-12 QB 21-82 | / | 3GB-00-12 QB 21-82 | Carbon Steel | Deformation from uneven pressure and corrosion from mud contact. | Ensure the washer is properly seated before tightening; clean the washer surface to remove mud or debris. |
6. Mud Pump Structural & Functional Components
This category includes flanges, flow plates, springs, and supporting discs that form the structural and functional core of mud pumps. They ensure proper fluid flow, component alignment, and pressure regulation, reducing system failure in heavy-duty drilling operations.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | SDTYF-00-19 Flange, Lower | / | SDTYF-00-19 | Alloy Steel | Flange face wear from fluid flow and corrosion from mud seepage at gasket interfaces. | Use high-quality gaskets to prevent mud seepage; inspect the flange face monthly for scratches or corrosion. |
2 | SDTYF-00-13 Flow Plate, Supply | / | SDTYF-00-13 | Alloy Steel | Erosion from high-velocity fluid flow and clogging from sediment buildup in flow channels. | Clean the flow plate weekly to remove sediment; inspect flow channels for erosion and replace if damaged. |
3 | QDTYF-00-07 Pressing Plate | / | QDTYF-00-07 | Alloy Steel | Deformation from uneven pressure and wear from component contact. | Apply even pressure during installation; check plate flatness monthly and replace if warped. |
4 | SDTYF-00-14 Flange, Blind | / | SDTYF-00-14 | Alloy Steel | Corrosion from mud splashes and gasket-induced wear on the flange face. | Coat the flange exterior with anti-rust paint annually; replace the gasket every time the blind flange is removed. |
5 | SDTYF-00-24 Wave Spring | / | SDTYF-00-24 | Alloy Steel | Fatigue failure from repeated compression cycles and corrosion from moisture. | Inspect the spring for deformation every 400 operating hours; store spare springs in a dry environment. |
6 | QDTYF-00-03 Supporting disc | / | QDTYF-00-03 | Alloy Steel | Wear from component contact and deformation from excessive load. | Ensure proper component alignment to reduce contact wear; replace the disc if load-bearing surfaces show signs of damage. |
7 | SDTYF-00-26 Flange,Vent | / | SDTYF-00-26 | Alloy Steel | Clogging from mud debris and corrosion from vented moisture-laden air. | Clean the vent flange weekly to remove debris; install a small filter to prevent mud ingress. |
8 | SDTYF-00-10 Flange. Outlet(1″NPT) | / | SDTYF-00-10 | Alloy Steel | Thread wear from repeated pipe connection/removal and erosion from outlet fluid flow. | Use thread sealant during pipe connection; avoid over-tightening to prevent thread damage. |
9 | QDTYF-00-05 Spring | / | QDTYF-00-05 | Alloy Steel | Fatigue failure from frequent expansion/contraction and corrosion from mud contact. | Clean the spring regularly to remove mud buildup; replace if signs of rust or deformation are present. |
10 | QDTYF-00-15 Spring | / | QDTYF-00-15 | Alloy Steel | Same as QDTYF-00-05: fatigue from repeated cycles and corrosion from mud. | Same as QDTYF-00-05: regular cleaning and replacement at signs of damage. |
11 | BUSHING, VALVE GUIDE FOR SOUTHWEST VALVE COVERS | SW | 4700I | Bronze Alloy | Wear from valve stem movement and contamination from mud or dirt. | Lubricate the bushing with high-temperature grease monthly; clean the valve guide area to prevent debris ingress. |
12 | VALVE SEAT M-FZ79X110X30 CODE DRAWING REFERENCE PFF078077 | / | M-FZ79X110X30 (PFF078077) | Alloy Steel | Seat wear from valve contact and corrosion from aggressive drilling fluids. | Inspect the seat for scratches monthly; replace if the sealing surface damage exceeds 0.3mm. |
13 | BALL STEEL QB308-64 FOR TRIPLEX PUMP | / | QB308-64 | High-Carbon Steel | Surface wear from contact with valve seats and damage from foreign particles. | Filter drilling mud to remove large particles; inspect the ball for surface damage every 3 months. |
7. Desander & Desilter Components
Desander and desilter components (cones, apexes, bushings, nuts) are critical for removing sand and fine particles from drilling mud, ensuring clean fluid circulation and protecting downstream drilling equipment from abrasive damage.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | Cone body 26AG for BRANDT DESANDER SR-2 | / | 26AG | Ceramic-Coated Alloy Steel | Abrasion from sand particles in drilling mud and cone cracking from thermal shock. | Control mud flow rate to avoid excessive particle impact; preheat the cone before introducing hot mud. |
2 | Cone Apex 26AH for BRANDT DESANDER SR-2 | / | 26AH | Hardened Alloy Steel | Wear from high-velocity sand-laden mud and damage from improper cone alignment. | Align the apex precisely with the cone body; replace if wear exceeds 0.8mm in thickness. |
3 | NUT 26AI for BRANDT DESANDER SR-2 | / | 26AI | Alloy Steel | Thread wear from repeated cone removal and corrosion from mud splashes. | Use thread lubricant during installation; clean the nut threads after each cone removal. |
4 | Desilter cone Assy Complete 26AW | / | 26AW | Ceramic (Cone) + Alloy Steel (Assembly) | Ceramic cone wear from fine particle abrasion and assembly loosening from vibration. | Inspect the cone interior monthly for wear; check assembly bolts tightness weekly. |
5 | Desilter bushing BRANDT SE-16 DESILTER 26AA | / | 26AA | Bronze Alloy | Wear from desilter cone movement and corrosion from chemical mud additives. | Lubricate the bushing with compatible grease monthly; replace if excessive play is detected. |
8. Drill Pipe Wipers
Drill pipe wipers remove mud, debris, and moisture from drill pipe surfaces, preventing contamination of drilling equipment and ensuring safe, efficient pipe handling. They are compatible with various drill pipe sizes and designed for rugged on-site use.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | 19″ OD Double Split Pipe Wiper for Drill Pipe 5 1/2″ 252192155 | / | 252192155 | Urethane (Wiper Blade) + Alloy Steel (Frame) | Blade wear from drill pipe friction and damage from sharp debris on pipe surfaces. | Inspect drill pipe surfaces for sharp debris before wiping; replace the wiper blade if wear exceeds 1mm. |
2 | 19″ OD Double split pipe wiper DP size 3-1/2″ 252192135 | / | 252192135 | Urethane (Wiper Blade) + Alloy Steel (Frame) | Blade tearing from excessive pressure during wiping and frame corrosion from outdoor exposure. | Apply moderate, even pressure during use; coat the frame with anti-rust oil monthly. |
9. Mud Pump Suction Modules
Mud pump suction modules ensure stable, debris-free mud suction, maintaining consistent pump performance and preventing cavitation. Rated for heavy-duty use, they are compatible with FB-1600 and other mud pump models, reducing suction-related downtime.
No. | Product Name & Specification | MFG | P/N | Material | Main Wear Reason | Damage Prevention Note |
1 | MODULE, SUCTION STUDDED FOR FB-1600 | SW | 84902 / TS84902S | Alloy Steel | Seal leakage from stud loosening and corrosion from mud contact at flange connections. | Torque studs to 650 FT-LB quarterly; use flange sealant compatible with drilling mud to prevent seepage. |
On-Site Fault Maintenance Cases
Case 1: Mud Pump Pressure Gauge Failure in 12P160 Pump
A drilling team noticed inaccurate pressure readings from the PGE23.100-40MPa-II anti-shock gauge, leading to improper pump operation. Inspection revealed moisture ingress and a damaged sensing element. Root cause: No moisture sealant on the lens, allowing humidity to enter. Solution: Replaced the gauge, applied moisture-resistant sealant, and mounted it in a shielded location. Post-repair, the gauge provided accurate readings for 6+ months.
Case 2: Desander Cone Wear in BRANDT SR-2
The BRANDT SR-2 desander showed reduced sand removal efficiency, causing abrasive damage to downstream equipment. Inspection found severe wear on the 26AG cone body and 26AH apex. Root cause: Excessive mud flow rate increasing particle impact. Solution: Replaced the cone body and apex, adjusted mud flow rate to the manufacturer’s specification, and implemented weekly cone inspections. Sand removal efficiency restored to 98%.
FAQ (Frequently Asked Questions)
No. | Question | Answer |
1 | How to select the correct piston for my mud pump model? | First, confirm your mud pump model (e.g., NAT 12P160, TRIPLEX PUMP QYB42-125L). Then match the pump model with the piston specifications in the "Mud Pump Pistons & Piston Rods" section. For example, use QDTYF-00-06 Piston for general models, 226QMD-14 QYB42-125L Piston Rod for TRIPLEX PUMP QYB42-125L, and 1250207 Legacy Piston (Weatherford) for models requiring 6,500 Bull Nose Lip design. Ensure the piston material (alloy steel rod + urethane seal/dual-duro urethane) matches your drilling mud’s abrasiveness and temperature. |
2 | What is the recommended replacement cycle for mud pump liners? | The replacement cycle depends on mud abrasiveness and operating hours. For NAT 12P160 pump 6-1/2″ Steel Liner (P/N 1376G7), the recommended cycle is 800-1000 operating hours under normal dual-stage mud filtration. If using unfiltered high-viscosity mud, shorten the cycle to 500-600 hours. Replace immediately if liner deformation, excessive wear (thickness reduction over 1.5mm), or leakage is detected. |
3 | Can I use non-API compliant gaskets for mud pump flanges? | It is not recommended. Non-API compliant gaskets (e.g., non-API R-44 gaskets) cannot withstand high pressure (5K-6K PSI for NAT 12P160) and harsh drilling mud, leading to frequent leakage, flange corrosion, and equipment downtime. Use API-compliant gaskets such as API R-44 Gasket (P/N R44D) to ensure sealing performance and component protection. |
4 | How to prevent desander cone cracking in BRANDT SR-2? | To prevent cracking of the 26AG cone body (BRANDT SR-2), follow two key steps: 1) Avoid thermal shock by preheating the cone to 40-60℃ before introducing hot drilling mud (exceeding 80℃). 2) Control mud flow rate within the manufacturer’s limit (not exceeding 15 m³/h per cone) to reduce sand particle impact. Additionally, install a pre-filter to remove large particles (over 1mm) before mud enters the desander. |
5 | What should I do if the mud pump seal ring leaks? | First, stop the pump and identify the seal ring model (e.g., QDTYF-00-16 NBR Seal Ring). Check for root causes: 1) Abrasion from mud particles (replace with new seal and enhance mud filtration). 2) Chemical incompatibility (use NBR/FKM seal compatible with mud additives). 3) Improper installation (reinstall without over-stretching). Replace the seal ring and apply compatible sealant; for Deublin face seals (P/N 30182502), ensure rotary joint alignment before reinstallation. |
6 | How to maintain mud pump studs and fasteners to prevent loosening?
| Regular maintenance includes: 1) Apply thread lubricant/locker during installation to reduce wear. 2) Torque to specified limits (e.g., 580-620 FT-LB for liner bolts, 650 FT-LB for suction module studs). 3) Check tightness monthly (especially for locknuts 226QMD-06) to prevent vibration-induced loosening. 4) Clean exposed threads and apply anti-rust spray to avoid corrosion from mud and moisture. |
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