Powered by Made-in-China.com

Oil Pipeline Fittings, Pin Type Oil Drain, Drilling and Production Tools
US$40.00
10-99 Pieces
US$39.00
100+ Pieces
Sample price:US$39.00/piece.Request sample
Product profile
Transport Package
Wooden BoxSpecification
2-7/8"Trademark
EASTLONGOrigin
Henan, ChinaHS Code
7307990000Production Capacity
20000/YearKey features
Efficient Oil Leakage: Pin-cut groove enables rapid sealing and leakage conversion, reducing operation time.
Safe and Reliable Design: Larger piston diameter prevents accidental triggering, ensuring sealed status during normal pumping.
Simple Structure: Composed of drain body, pin, and gasket; easy to install and maintain, lowering usage costs.
Environmental Protection: Effectively reduces residual oil pollution and prevents resource waste from improper disposal.
API and ISO Certified: Company holds API and ISO certifications for over 17 years, ensuring strict quality standards.
Customizable Packaging: Free packaging options include wooden crates, pallets, and iron pallets; custom options available.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP
AI-Powered supplier vetting
SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.
Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.
CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.
R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.
Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.
Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.
Product Q&A
Q:What is the main function of the pin type oil drain?
A:
It drains residual oil from the tubing into the casing during pump startup, preventing environmental pollution and simplifying operations.
Q:How does the pin type oil drain work?
A:
The sucker rod impacts the pin, breaking it at a control groove to open the drain hole, allowing liquid to leak into the well.
Q:What are the key features of this product?
A:
Features include efficient leakage via pin-cut grooves, safety through larger piston diameter, simple structure, and environmental protection.
Q:Where is the company located and when was it established?
A:
Based in Tianjin, China, the company started in 1999 and has over 20 years of history in petroleum machinery.
Q:How does the company guarantee product quality?
A:
We always provide a pre-production sample before mass production and conduct a final inspection before shipment.
Send Inquiry
*To:
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Oil Drilling and Production Pipeline Plug Drilling and Production Tools
US$9.50-10.00
10 Pieces(MOQ)
Apl Oil Drilling and Production Flange Pipeline Fittings Hardware Tools
US$59.00-60.00
10 Pieces(MOQ)
Top and Hole Clamping Turning Tools
Negotiable
1 Piece(MOQ)
API Oil Tubing Reducer 5-1/2"*3-1/2" Drilling and Production Tool Oil Casing Reducer
US$18.00-19.00
20 Pieces(MOQ)
Oil Drilling and Production Tools, Downhole Tools, Packers, Oil Sealers, Tubing Accessories
US$19.00-20.00
10 Pieces(MOQ)
Indexable Hole-Machining Drilling Tools with Carbide Inserts for Wholesale
US$63.58-109.00
1 Piece(MOQ)
Handing Glass Sucker and Vacuum Glass Lifter Tools for Glass Work
US$11.00
10 Pieces(MOQ)
Durable Pipeline Leak Repair Tool for Effective Solutions
US$1,090.00-1,100.00
2 Pieces(MOQ)
Jfn009 Glass Circle and Ovalhand Cutting Machine Tool
US$110.00
1 Piece(MOQ)
Industrial Grade Multi-Purpose Metal Scraper Knife Heavy Duty Oil Stain Cleaning Shovel Tool
US$0.20-1.50
1 Piece(MOQ)
Pipe Cutter Refrigeration and Air Conditioner Tool in High Quality
US$12.00-26.00
50 Pieces(MOQ)
Heavy Duty Stainless Steel Multi Tool Scraper with Hammer End and Rubber Grip Handle
US$0.20-1.50
1 Piece(MOQ)
2-in-1 Adjustable Rotavator, Garden Tool for Weeding, Loosening Soil and Turning Soil
US$11.00
10 Pieces(MOQ)
Best Quality Meat Cutting Tools Slicing Cheese Bacon Sausage and Other Meats
US$1.55-2.85
1 Piece(MOQ)



















