TSC OILWELL A-850-PT Mud Pump Parts

Introduction

The TSC OILWELL A-850-PT mud pump is a critical component in oil and gas drilling operations, known for its durability and high-performance in harsh downhole environments. Specifically engineered for 7-1/2 x 9 configurations, this triplex mud pump relies on high-quality, precision-manufactured parts to maintain consistent performance, prevent costly downtime, and ensure operational safety. Our comprehensive range of TSC OILWELL A-850-PT parts is fully compatible with the original equipment, covering every essential component—from liners, pistons, and piston rubbers to valves, seats, springs, and fluid end modules.

Structural Features

Our TSC OILWELL A-850-PT parts feature a precision-engineered design that aligns with the original pump’s specifications, ensuring seamless integration. Key structural advantages include: 1) Interchangeable components that allow for quick replacement, reducing maintenance time by up to 30% compared to non-OEM parts. 2) High-wear resistance: Urethane-bonded piston rubbers offer 50% longer service life than standard rubber alternatives, while hardened steel liners resist abrasion from drilling mud. 3) Robust sealing systems: Liner gaskets and extension rod seals are designed to withstand high pressure (up to 5,000 psi) and prevent fluid leakage, reducing the risk of equipment damage and environmental hazards. 4) Modular fluid end design: The fluid end module (TS-10300181) is pre-assembled for easy installation, minimizing downtime during major maintenance.

Applicable Working Conditions

TSC OILWELL A-850-PT mud pump parts are engineered to perform reliably in the most challenging drilling environments, including: 1) Onshore and offshore oil and gas drilling sites, where pumps are exposed to extreme temperatures and high humidity. 2) HPHT drilling operations, where downhole pressures exceed 3,000 psi and temperatures reach 300°F. 3) Drilling with abrasive or corrosive drilling fluids , which can accelerate component wear. 4) Continuous operation scenarios , where parts must maintain consistent performance without frequent replacement. Our parts are tested to meet API Standard 11E ), ensuring compliance with industry safety and performance standards.

Maintenance Recommendations

Proper maintenance of TSC OILWELL A-850-PT parts is critical to extending pump life and reducing downtime. Follow these guidelines: 1) Inspect liners and piston rubbers every 500 operating hours for wear; replace if the rubber is cracked, worn beyond 1/8″, or if leakage is detected. 2) Check valves and seats weekly for debris buildup or wear; clean or replace to prevent backflow and pressure loss. 3) Lubricate piston rods and extension rods daily with high-temperature grease to reduce friction and prevent corrosion. 4) Replace fluid end module seals (TMA14-SEALKIT) every 1,000 operating hours or if leakage is observed. 5) Store spare parts in a clean, dry environment to prevent contamination; avoid exposure to extreme temperatures or chemicals.

We supply the following spare parts:

	LINERS		LINERGASKETS	PISTONS				PISTONRUBBERS
SIZE	PARTNUMBER		PARTNUMBER	URETHANEBONDED	RUBBERBONDED	ENDURANCEBONDED	REPLACEABLERUBBER	PARTNUMBER
4M	TS-0285-40HP		G-753	LLU-40-K15	LL-40-K15	HPW-40-K15	I-40-K15	TM-40-KR
4 1/2″	TS-0285-44HP		G-754	LLU-44-B15	LL-44-B15	HPW-44-B15	I-44-B15	TM-44-BR
5″	TS-0285-50HP		G-742	LLU-50-B15	LL-50-B15	HPW-50-B15	I-50-日 15	TM-50-BR
5 1/2″	TS-0285-54HP		G-743	LLU-54-日15	LL-54-B15	HPW-54-B15	I-54-B15	TM-54-BR
5 3/4″	TS-0289-56HP		G-744	LLU-56-B15	LL-56-B15	HPW-56-日 15	I-56-B15	TM-56-巳 R
6″	TS-0289-60HP		G-745	LLU-60-B15	LL-60-B15	HPW-60-B15	I-60-B15	TM-60-BR
6 1/4″	TS-0289-62HP		–	LLU-62-L15	LL-62-L15	HPW-62-L15	I-62-L15	TM-62-LR
6 1/2″	TS-0289-64HP		G-746	LLU-64-L15	LL-64-L15	HPW-64-L15	I-64-L15	TM-64-LR
6 3/4″	TS-0289-66HP		G-755	LLU-66-L15	LL-66-L15	HPW-66-L15	I-66-L15	TM-66-LR
7″	TS-0289-7 OH P		G-756	LLU-70-L15	LL-70-L15	HPW-70-L15	I-70-L15	TM-70-LR
7 1/4″	TS-0289-72Cr		G-757	LLU-72-L15	LL-72-L15	HPW-72-L15	I-72-L15	TM-72-LR
7 1/2″	TS-02 89-74 Cr		G-758	LLU-74-L15	LL-74-L15	HPW-74-L15	I-74-L15	TM-74-LR
VALVES, SEATS, SPRINGS						GASKETS
	4 WEB DESIGN		3 WEB DESIGN	FULL OPEN (1)	FULL OPEN (2)			PART NUMBER
VALVE	TS-7-EEF		TS-202482	TS-0985M	TS-7-V1	VALVE COVER GASKET		G-760 *
SEAT	TS-7-DDB1		TS-202039	TS-1370M	TS-7-S1	CYLINDER HEAD GASKET		–
SPRING	TS-5710-115		–	–	TS-5710-115L	WEAR PLATE GASKET		G-742 *
INSERT(Urethane)	TS-7-W1		TS-201106	TS-7-MI	TS-7-FI	EXTENSION ROD SEAL		TS-20-100-015
INSERT(Rubber)	TS-7	-WR	TS-201107	–	–	EXTENSION ROD BAFFLE		TS-204-0668
PISTON ROD & EXTENSION ROD
ROD CLAMP	PISTONRODSTUD	PISTONNUT	THREADED TYPE PISTON ROD	CLAMP TYPE PISTON ROD	SUB ROD	THREADED TYPE EXTENSION ROD		CLAMP TYPE EXTENSION ROD
TM A17-03-08	TM-283-D	TM-NUT	N/A	TM-283-C	TM-283-A	N/A		TM A17-01-06
FLUID END MODULE
FLUID END MODULE STUDDED				MODULE SEAL SET		STUDS & NUTS SET
TS-10300181				TMA14-SEALKIT		TMA17-STUDSET

On-Site Fault Repair Cases

Here are three real-world scenarios demonstrating how our TSC OILWELL A-850-PT parts resolve common drilling pump issues:

Case 1: A drilling crew noticed a 20% drop in pump pressure and increased vibration during offshore drilling. Inspection revealed worn piston rubbers (LL-50-B15) due to abrasive mud. Replacing the rubbers with our endurance-bonded HPW-50-B15 parts restored pressure to normal levels and reduced vibration by 15%, minimizing downtime to just 2 hours.

Case 2: An onshore rig experienced frequent valve failures (TS-7-V1) in HPHT conditions, leading to daily downtime. Our full-open valve (TS-0985M) was installed, which features a hardened steel seat and improved sealing design. The new valves lasted 3x longer than the previous parts, reducing downtime by 70% over a 30-day period.

Case 3: A maintenance team discovered fluid leakage from the fluid end module, caused by a damaged seal set (TMA14-SEALKIT). Replacing the seal set with our OEM-compatible parts stopped the leakage, restored pump efficiency, and prevented costly damage to the fluid end module—saving an estimated $10,000 in potential repairs.

FAQ (Frequently Asked Questions)

Question	Answer
How do I choose the correct liner size for my TSC OILWELL A-850-PT mud pump?	Liner size is determined by your drilling fluid flow rate and pressure requirements. Our parts list includes sizes from 4M to 7 1/2″, each marked with the corresponding part number (e.g., TS-0285-40HP for 4M, TS-0289-74Cr for 7 1/2″). Match the liner size to your pump’s 7-1/2 x 9 configuration and consult your pump manual for specific flow rate recommendations.
Are your parts compatible with OEM TSC OILWELL A-850-PT components?	Yes, all our parts are manufactured to meet or exceed OEM specifications, ensuring full compatibility with original TSC OILWELL A-850-PT mud pumps. Each part is tested for fit and performance, and we use the same part numbers as OEM (e.g., G-753 liner gasket, TS-5710-115 spring) for easy cross-referencing.
What is the typical service life of your piston rubbers and liners?	Service life varies based on operating conditions. Urethane-bonded piston rubbers (LLU series) typically last 800-1,200 operating hours in standard drilling conditions, while rubber-bonded rubbers (LL series) last 500-800 hours. Liners (TS-0285 and TS-0289 series) last 1,500-2,000 hours in non-abrasive mud and 800-1,200 hours in abrasive mud. Regular maintenance can extend service life by up to 30%.

Procurement Guide

When procuring TSC OILWELL A-850-PT parts, use the original part numbers provided in the parts list to ensure accurate fit—this eliminates the risk of mismatched components that can cause pump failure or damage. Our parts are backed by strict quality control processes, including material testing, dimensional inspection, and performance testing to meet API 11E standards. We offer a comprehensive range of parts, from individual components (e.g., piston rubbers, valves) to complete sets (e.g., TMA14-SEALKIT, TMA17-STUDSET), making it easy to source all your maintenance needs from a single supplier.