What standards do these pipes comply with?

The pipes comply with major standards including GB/T 23257-2017 (Chinese National Standard), ISO 21809-1 (International Standard), and DIN 30670.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 set, allowing for flexible purchasing options for various project scales.

Does the manufacturer offer OEM or ODM services?

Yes, the company provides OEM and ODM customization services, allowing clients to have products manufactured according to their specific samples or designs.

Large Diameter DN 30-4000 Pipe System 3lpe for Long-Term Water Supply Pipe

Name: Large Diameter DN 30-4000 Pipe System 3lpe for Long-Term Water Supply Pipe
Brand: Tianjin Fuxiang Steel Pipe Manufacturing Co., Ltd.
SKU: 2001357731

Tianjin, ChinaTianjin Fuxiang Steel Pipe Manufacturing Co., Ltd.

US$500.00

10 Pieces

Product specifications

Type

Product profile

Customization

Available

Application

Construction Industry, Oil and Gas Industry, Water Treatment Plants

certification

ISO9001

Model NO.

DN 30-4000

Length

Custom Length

Outer Diameter

Surface Finish

3LPE Coating

Wall Thickness

Schedule 80

Coating Structure

3lpe Three-Layer

Material Grade

X42/X52/X60/X70/X80

Corrosion Resistance

Underground 30+ Years

Application Scenario

Oil/Gas Pipeline

Specification

Customizable

Trademark

Origin

China

HS Code

7305110000

Production Capacity

50000

Key features

Superior Corrosion Resistance: 3LPE coating ensures underground service life over 30 years with excellent chemical erosion resistance.

Large Diameter Range: Available in outer diameters from 40mm to 4000mm for diverse pipeline applications.

Customizable Specifications: Offers custom length, material grade (X42-X80), and coating structure to meet specific project needs.

Multi-Layer Protection: Three-layer structure combines FBE epoxy, adhesive, and PE for strong adhesion and mechanical protection.

Flexible Design Life: Designed to last over 50 years under standard conditions, suitable for long-term water supply.

Smooth Inner Wall: Reduces fluid friction, improving flow efficiency for oil, gas, and water transmission.

OEM/ODM Services: Professional source factory providing customized manufacturing and branding services.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryQuality Assurance

Tianjin Fuxiang Steel Pipe Manufacturing Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 1year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.28h

AI-Powered supplier vetting

SummaryThe supplier is a manufacturer specializing in anti-corrosion pipes and steel products, with three production lines and stated 3LPE output capacity. It provides customization from samples, ODM services, and OEM services for popular brands. Quality-related strengths include ISO 9001:2015 and ISO 45001:2018 management-system certifications, quality assurance in quality-control processes, and an environmental impact assessment report. However, the evidence also shows gaps: no written procedures or records for corrective/preventive actions, complaint handling, or finished-product inspection records; no valid manufacturing-capacity contract with an affiliated subcontractor; no SDK, overseas warehouse, overseas showroom, overseas agents or branches, or offline trade-show participation. Financial information supplied for 2024 and 2025 reports zero operating revenue, cost, gross profit, and operating profit, which creates uncertainty regarding financial credibility. No cooperation with Fortune 500 companies is...

Supplier typeThe company is explicitly described as a professional manufacturer specializing in the research, development, production, and sales of anti-corrosion pipes and various steel products. This supports classification as a manufacturing supplier rather than only a trading or service intermediary.

CertificationsThe supplier reports ISO 9001:2015 and ISO 45001:2018 management-system certificates, plus other product-compliance and sustainability certifications. It also has a factory environmental impact assessment report, although the specific standards covered by the unspecified certifications are not provided.

After-Sales capabilityThe supplier has not provided written procedures or records for corrective and preventive actions or effective customer-complaint handling. It also lacks overseas warehouses, showrooms, agents, and branches, although it can offer several quotation terms and has in-stock service capability; the documented service-system weaknesses are explicit.

Financial creditThe supplied financial data for 2025 reports zero operating revenue, operating cost, gross profit, and operating profit, while the two-year information also reports zero operating revenue. These stated figures do not establish positive operating performance and create a material concern regarding financial credibility.

R&D capabilityThe supplier reports no available SDK and no new products during the past year. ODM service is available, but the evidence does not demonstrate recent product innovation or software-development capability.

Production capacityThe supplier operates three production lines, including shot blasting, heating, 3PE coating, cooling, and pipe-processing equipment, and reports 3LPE output of 100,000,000 square meters. It also states a one-month peak-season fulfillment time and has inventory capability; however, no valid contract exists between the factory and an affiliated subcontractor, which is a documented capacity-management deficiency.

Customization capabilityThe supplier explicitly offers customization from samples and provides ODM services, indicating the ability to develop or manufacture customized products. Its OEM service for popular brands further supports this capability.

Client casesThe supplier reports no cooperation with Fortune 500 companies, so no major-brand customer case is evidenced by the provided information. A repeat-buyer preference of 50%–80% is reported, but it does not identify specific customers or independently establish documented customer cases.

Product Q&A

Q:What is the structure of the 3LPE anti-corrosion coating?

The 3LPE coating consists of three layers: an inner FBE epoxy powder layer for adhesion, an adhesive intermediate layer, and an outer polyethylene (PE) layer for mechanical protection and waterproofing.

Q:What is the expected service life of these pipes?

The pipes are designed for a long-term service life, typically over 50 years under standard conditions, with corrosion resistance lasting more than 30 years underground.

Q:What are the available outer diameter and wall thickness ranges?

The outer diameter ranges from 40mm to 4000mm, and the wall thickness ranges from 4mm to 20mm, with options for Schedule 80 and other custom specifications.

Q:Can the pipe length be customized?

Yes, the standard lengths are 6m or 12m, but custom lengths are available to meet specific project requirements.

Q:What materials are used for the steel pipe substrate?

The substrate is made of carbon steel, including grades such as Q235B, L245, L360, Q345B, and high-grade steels like X42, X52, X60, X70, and X80.