What certifications does the manufacturer hold?

We hold ISO9001, ISO14001, ISO45001, HSE, and API 5CT certificates, along with BV France quality supplier assessment.

What packaging options are available?

Products are packaged on wooden pallets, tightly wrapped, or in W paper cartons.

API 5CT Pup Joint 2-3/8 API 5CT with Coupling

Name: API 5CT Pup Joint 2-3/8 API 5CT with Coupling
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2142241022

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

US$12.69

500 Pieces

Product profile

Name

API 5CT Pup Joint 2-3/8 API 5CT with Coupling

Thread

Nu EU

Grade

K55 J55 L80-1 N80q P110

Usage

Oil Pipe

Transport Package

Wooden Box

Specification

2-3/8 2-7/8 3-1/2

Trademark

EASTLONG

Origin

Puyang Henan

Production Capacity

5000 PCS One Day

Key features

API 5CT Certified Quality: Products meet API 5CT/5B standards with ISO9001 and API 5CT certificates.

Wide Grade Selection: Available in J55, K55, N80, L80, and P110 grades for various applications.

EUE and NUE Options: Offers both External Upset End (EUE) and Non-Upset End (NUE) coupling types.

100% Joint Efficiency: EUE joints provide tension and pressure strength greater than the pipe body.

Comprehensive Testing: Includes tensile, impact, chemical, and sulfide stress cracking tests.

Established Manufacturer: National high-tech enterprise with over 20 years of experience since 1999.

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

Flexible Payment Terms: Accepts LC, T/T, PayPal, and Western Union for convenient transactions.

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.

Product Q&A

Q:What grades are available for API 5CT Pup Joints?

We offer J55, K55, N80, L80, and P110 grades to suit different operational requirements.

Q:What is the difference between EUE and NUE couplings?

EUE couplings have a larger outer diameter and higher joint strength (100% efficient), while NUE has a smaller diameter and lower strength but offers advantages in tight clearance spaces.

Q:What standards do your tubing couplings meet?

All our couplings are designed and manufactured in accordance with API 5CT and API 5B specifications.

Q:What is the average lead time for orders?

The average lead time is within 15 workdays for both peak and off-peak seasons.

Q:What payment methods do you accept?

We accept LC, T/T, PayPal, and Western Union for payments.