Nov Varco Drilling TDS Part Shot-Pin for Top Drive System

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: 30151875
• Manufacturing Process: Forging
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Brand: Nov, Varco, Tesco, Canrig, Tpec, Jh, Hh, Bpm
• Model: TDS11SA, TDS8SA, Dq70bq, Dq50bq, 1250, HMI
• Application: Top Drive System
• Fixing Form: Anti-Rotation Design
• Weight Range: 68-105kg(Depending on Model)
• Standard: API, ISO
• Lubrication: Oil Lubrication
• Hardness: HRC40-HRC45
• Torque Capacity: 37500 FT. Lb
• Temperature Resistance: 1600°c
• Fatigue Resistance: Passed Cyclic Loading Test
• Straightness Deviation: ≤0.02mm/M
• Cylindricity Tolerance: ±0.005mm-±0.01mm
• Surface Treat: Nitriding (to Improve Wear Resistance)
• Reduction Ratio: 10.5:1
• Transport Package: Wooden Box
• Specification: 80kg
• Trademark: VSP
• Origin: China
• HS Code: 8431431000
• Production Capacity: 100 Set Per Year
• Package Size: 90.00cm * 80.00cm * 80.00cm
• Package Gross Weight: 90.000kg

Product Description

In a Top Drive system, the shot pin assembly functions to precisely position and lock the Rotating Link Adapter (RLA) during drilling operations. It ensures the RLA, which is crucial for handling drill pipe, is securely locked in specific angular positions, preventing unwanted rotation during make-up or break-out of drill string connections.
The shot pin assembly in a top drive system typically consists of a shot pin, a sleeve, a seal piston, and a rod seal assembly. These components work together to engage and disengage the top drive's rotating head with the drill string, allowing for rotational and vertical movement during drilling operations.  

 

Product Name: TDS SHOT PIN ASSY
Brand: VARCO, TESCO, CANRIG, TPEC, JH, HH, BPM.
Applicable models: TDS4SA, TDS8SA, TDS9SA, TDS11SA
Part number: 117831,118563,30125099,30151875,
30151951,30151953,30151961,30156256,30171974,30173958,10852289-001,120852-503,10429
Price and delivery: Contact us for an exclusive quotation 
Function: Angular Positioning:
The shot pin assembly, driven by a hydraulic motor, allows the RLA to be rotated to a desired position. 
Locking Mechanism:
Once the RLA is in the correct position, the shot pin engages with a locking mechanism, effectively securing it in place. This prevents the RLA from rotating unintentionally, which is vital for safety and efficient drilling. 

Hydraulic Operation:
The shot pin assembly is typically hydraulically powered, with the hydraulic motor being controlled by an electric solenoid valve. 
Multiple Positions:
The RLA can be locked in multiple indexed positions, allowing for flexibility in handling different drilling operations and pipe sizes. 
Improved Design:
Due to wear and potential hydraulic leaks in older designs, manufacturers like NOV have implemented design improvements, such as longer shot pins and more durable seals, to increase the lifespan and reliability of the shot pin assembly. 


Here's a breakdown of the key components:
Shot Pin: The core component that physically engages and disengages the top drive from the drill string. 
Sleeve: A housing that guides and supports the shot pin, often made of brass. 
Seal Piston: A component that helps create a seal to prevent fluid leaks. 
Rod Seal Assembly: A crucial part for maintaining a reliable seal around the shot pin, preventing fluid leakage and ensuring proper hydraulic function. 


 

 

These components are designed to withstand the harsh conditions of drilling and are subject to wear and tear. NOV (National Oilwell Varco) has released product bulletins regarding improved shot pin assembly designs with longer pins and more durable seals. These improvements aim to address reported wear issues and extend the lifespan of the assembly.


Brand & Model:

NOV/VARCO : TDS4S ATDS-8SA, TDS-9SA, TDS-10SA, TDS-11SA
TESCO : HXI HCI HS ECI EMI EXI
CANRIG :1035 1050 1250 8050 6027

HH(HongHua) : DQ225DBZ DQ315DBZ DQ450DBZ DQ675DBZ DQ900DBZ DQ225Z DQ450Z DQ900DBZ DQ225Z DQ450Z
JH : DQ40B DQ50B DQ50BQI-JH DQ70BS
BPM:DQ40BC DQ50BC DQ70BSH DQ70BSC DQ70BSD DQ80BSC DQ9OBSC
TPEC:DQ40AIII-A DQ40LHTY-LA DQ501I-A DQ50III-A DQ70III-A DQ90I






Maintaining the shot pin assembly in a top drive system involves regular inspection and maintenance to ensure proper functionality and prevent failures. This includes checking for loose or broken parts, inspecting the shot pin and its housing for wear, ensuring proper lubrication, and verifying the function of the solenoid valve and relief valve. 

Detailed Maintenance Procedures:
1. Daily Inspections:
Check for Missing Parts: Inspect for missing lockwire and cotter pins. 
Check for Loose or Broken Parts: Ensure all parts are securely fastened and not damaged. 
Check Hoses and Fittings: Inspect hoses and fittings for damage. 
Check Tong Dies: Inspect tong dies for wear. 
Check Clamp Cylinder Leaks: Check the clamp cylinder for leaks. 
Check Hoses for Damage: Inspect hoses for wear or damage. 
Check Tool Joint Locks: Verify tool joint locks are tight. 
2. Weekly Inspections:
Check Upper and Lower IBOP Valves: Ensure proper operation. 
Check Link Tilt Clamps: Verify position and tightness. 
Check Stabbing Guide and Flippers: Inspect for damage. 
Check Clamp Cylinder Gate Hinge Pin: Inspect for wear. 
Check IBOP Actuator Cylinder Leaks: Check for leaks. 
3. Monthly Inspections:
Check Elevator Links Eyes: Inspect for wear. 
Check Link Tilt Bushings: Inspect for wear. 
Check Link Tilt Actuator Cylinder Leaks: Check for leaks. 
Check Link Tilt Actuator Cylinder Pin: Inspect for wear. 
4. Solenoid Valve (SV5) and Relief Valve Checks:
Functionality Test: Manually operate SV5 to see if the shot pin engages. If it doesn't, check for proper voltage and signal to the valve, or replace the valve. 
Relief Valve Pressure: Verify relief valve pressure (typically 400 psi). Refer to the shot pin circuit setup for adjustment. If faulty, replace the relief valve. 
5. Lubrication:
Refer to the maintenance manual for specific lubrication points and recommended lubricants (grease and gear oil). 
6. Additional Checks:
Check Mounting Bolts and Pins: Inspect mounting bolts and pins for tightness and wear, and consider staking the dowel pin holes to mechanically retain them. 
Inspect after Severe Operating Conditions: Inspect after severe operating conditions. 



 

SHANDONG VS PETROLEUM TECHNOLOGY CO., LTD (VSP), established in 2010, stands as a beacon of excellence in the realm of Manufacturing, Import & Export of petroleum equipment. With a dedicated focus on the oil & gas drilling logistics support and technical services, VSP adeptly caters to the burgeoning demands of both domestic and international petroleum industries. Pioneering innovation, VSP has independently developed the DQ series top drive, expertly designed for drilling operations spanning depths from 2000 to 7000 metres. Beyond this, we offer high-quality OEM parts and substitutes for top drive systems of renowned brands like VARCO, TE-SCO, CANRIG, TPEC, JH, BPM, and HongHua. With an impressive 16-year legacy in the top drive market, we have established a robust and complete OEM import channel across the United States, Canada, and the European Union. Our commitment to rigorous price and quality control has solidified our status as a long-term qualified supplier to industry giants such as CNPC, CNOOC, and COPE. At VSP, we are dedicated to forging enduring partnerships with our clients, built on the bedrock of consistent performance. This commitment is manifested through our unwavering focus on providing exceptional service, superior quality products, competitive pricing, and timely delivery. Customer satisfaction remains our utmost priority at VSP.

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Packaging & Shipping

1-Package and Transportation

Our warehouse spans 1,000 square meters and is managed by a proficient team of warehouse keepers and cost accountants. Adhering strictly to API quality system standards, we ensure meticulous acceptance, storage, and maintenance of raw materials, alongside diligent inventory and shipment management, all while adhering to rigorous safety protocols.



Here attached are additional Back-up Clamp part numbers for your reference:

 

116146	TUBE,SHOT-PIN,ASSY,TDS9S
118155	BASE,SHOT-PIN
118173	PIN,ASSY,SHOT
30118157	CAP,SHOT-PIN
30151875	SHOT PIN ASSY
30151953	HOUSING, SHOT PIN (MACHINING)
30173958	SHOT PIN,PH-100
30151875-504	ASSY,HYD DRIVE,SHOTPIN,40 X 25 TDS-11S
30173958-LT	PIN:  SHOT  1.48  X  6.48  MS59
M614003825-ASM-001	ASSY,HYD DRIVE,SHOTPIN,TDS10SH
10429	GEAR,PINION,SHOT PIN,PH-100
112621	PIN,SHOT,TDS9S
116146	TUBE,SHOT-PIN,ASSY,TDS9S
117831	SHOT PIN,PH-100
118155	BASE,SHOT-PIN
118173	PIN,ASSY,SHOT
118563	SLEEVE,SHOT PIN
30112625	SLEEVE,SHOT-PIN,TDS9S
30118157	CAP,SHOT-PIN
30125099	TUBE, ASSY SHOT PIN
30125101	TUBE ASSY, MANIFOLD/SHOTPIN
30125102	ASSY, TUBE, MANIFOLD D/SHOT-PIN
30151875	SHOT PIN ASSY
30151951	SLEEVE,SHOT PIN,PH-100
30151953	HOUSING, SHOT PIN (MACHINING)
30151961	FLANGE BUSHING,SHOT PIN,PH-100
30156256	GEAR,PINION,SHOT PIN,PH-100
30171974	TUBE ASSY,MANIFOLD/SHOT PIN
30171975	ASSY TUBE, MANIFOLD/SHOT-PIN
30173958	SHOT PIN,PH-100
10852289-001	Sleeve Shot Pin
120852-503	SHOT PIN, ASSY-TD8S
30151875-504	ASSY,HYD DRIVE,SHOTPIN,40 X 25 TDS-11S
30173958-LT	PIN:  SHOT  1.48  X  6.48  MS59
M614003825-ASM-001	ASSY,HYD DRIVE,SHOTPIN,TDS10SH
10429	GEAR,PINION,SHOT PIN,PH-100
30179368	Hydraulic Drive/Shot pin Assembly
30179368-DWG	Drawing, Hyd Drive/Shot Pin Assy
16624957-ASM	Hyd Drive/Shotpin Assembly
M614000597	HYD DRIVE/SHOTPIN ASSY
50151875-504	ASSEMBLY, HYD DRIVE/SHOT PIN, STAINLESS STEEL
M614002682	HOUSING,HYD DRIVE/SHOTPIN
10854484-006	HYD   DRIVE/SHOTPIN   ASSY
10852292-001	HOUSING,HYD DRIVE/SHOTPIN
78002	PLATE,CLAMP,SERVICE LOOP
116868	BRACKET,SERVICE LOOP,WELDMENT/MACHINING
116868-500	BRACKET,SERVICE LOOP,WELDMENT/MACHINING
126498-200-25-3-B	SERVICE LOOP: ELECT CONTROL LOOP
30155510-FP-50-BLK	POWER SERVICE LOOP CONNECTOR
30175018-86-4-3-B	SERVICE LOOP ASSY, POWER (EEX) 777MCM
30175019-86-200	KIT,SERVICE LOOP,777 MCM W/QDS
30175130-200-25-8-B	ASSY,SERVICE LOOP,POWER 313MCM TYPE VFD
30175883-101-4-3-B	ASSY,SERVICE LOOP POWER,646MCM,VFD (replaces 116779-101-4-3-B)
30175883-86-4-3-B	ASSY,SERVICE LOOP POWER,646MCM,VFD
30183959-200-25-4-B	CABLE ASSY SERVICE LOOP 18 COND.
M614000129-200-25-3-B	SERVICE LOOP
30175021-86-200	SERVICE LOOP 30175021-86-200 Varco TDS-11SA
30175019-86- 200	SERVICE LOOP KIT, 777 MCM (TDS to mid rig)            System Electrical:   UL                              Installation Type:   Portable       Service Loop Length:   86 ft                          Aux. Loop Length:   200 ft
730780	Service Loop,225-ft lg,250-EMI-400
730817	Kit,Hoses,Hyd,Service Loop,225-ft lg,EMI 400
730846	Cable Set,69m,Service Loop,EMI 400
111169-8	SERVICE LOOP BRACKET ASSY,3 POSITION
16500015-999	ASSEMBLY INSTRUCTIONS,SERVICE LOOP
120997	BRACKET, SERVICE LOOP
30173225	Electrical Service Loop Kit, TDS
109600	Service Loop, Fluid
10109545-005	SERVICE LOOP KIT, ELECTRICAL:                                 92 feet, Non-Retract
10112082-002	SERVICE LOOP, FLUIDS:                                              92 feet, Non-Retract
120997-1	BRACKET , SERVICE LOOP
30175021-65-200	65FT EEx POWER SERVICE LOOP AND  200 FT EEx CONTROL LOOPS WITH 3 FT TOOL-END PIGTAILS TO FIT EEx TDS-11SA. PIGTAILS TO FIT EEx TDS-11SA.
30175021-101-215	101FT EEx POWER SERVICE LOOP AND 215 FT  EEx CONTROL LOOPS WITH 3 FT TOOL-END
30175021-DWG	DRAWING,KIT, SERVICE LOOP (W/ 777 MCM POWER)
30172697	JACKET,SERVICE LOOP
30173225-DWG	Drawing, Service Loop Kit, Electrical
30170945-92-30-30	Service Loop, Controls
140966-20-20	Service Loop, Power (2 each)
30156378-92-30-20-20	Service Loop, Auxiliary Power
30172697-1	JACKET,SERVICE LOOP,NARROW
10471048-001	ELECTRIC KIT, IDS-350PE        System Electrical:
125989-133D-S339SN-N	COMPOSITE SERVICE LOOP TOOL INST J-BOX  CONNECTOR - TOP DRIVE END
M611004371-133C2-S371SN-D	I.S. SERVICE LOOP TOOL INST JBOX CONNECTOR - TOP DRIVE END
M614002553	DOOR,SERVICE LOOP CONNECTORS
M614000888	GUIDE PLATE,SERVICE LOOP
M614000884	SERVICE LOOP BRACKET
10662160-001	LOCK PLATE,SERVICE LOOP
10652735-500	LOCK PLATE,SERVICE LOOP
10652706-00l	GUIDE PLATE,SERVICE LOOP