What payment terms are accepted?

LC, T/T, PayPal, Western Union.

What are the available steel grades?

J55, N80, L80, P110, and customized options.

2-3/8" L80 EU Special Clearance Tubing Coupling

Name: 2-3/8" L80 EU Special Clearance Tubing Coupling
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2126928742

Tianjin, ChinaTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.

US$150.00

1 Piece

Product specifications

3-1/2

Sample price:US$7.00/piece.Request sample

Product profile

After-sales Service

Replacement Within Warranty

Warranty

Three Months

Certification

ISO 9001:2000, ISO 9001:2008

Power Source

Manual

Operation Pressure

High Pressure

Applicable Medium

Crude Oil

Structure

Coupling Type

Material

L80 Steel

Transport Package

Wooden Case

Specification

2-3/8" EU L80 Special Clearance Coupling, OD 106.1

Trademark

DFL

Origin

China

HS Code

7307210000

Production Capacity

5000000 Pieces/Year

Key features

High-Strength Material: Manufactured from L80 alloy steel with precision threading and heat treatment.

Special Clearance Design: Offers improved fit and enhanced reliability under demanding well conditions.

Anti-Corrosion Coating: Features anti-rust coating and black coating for excellent corrosion resistance.

Certified Quality: ISO 9001:2000/2008 certified and API 5CT authorized supplier.

Versatile Applications: Ideal for oilfield tubing connections, offshore platforms, and high-pressure systems.

Customization Options: Supports custom steel grades, thread types, and customer logos.

Reliable Sealing: Precision-machined threads ensure reliable sealing performance.

Global Export: Products exported to 31 countries including USA, Russia, and UAE.

Company profile

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Tianjin, China

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.