DN50 - DN2200 3LPP Coated Pipe Three Layer Polypropylene Coated Line Pipe

Description

3-Layer Polypropylene (3LPP) is a multilayer coating composed of three functional components; a high performance Fusion Bonded Epoxy (FBE) primer, followed by a copolymer adhesive, and an outer layer of polypropylene which provides one of the toughest, most durable pipe coating solutions available. 3LPP systems provide excellent pipeline protection for small and large diameter pipelines at up to high operating temperatures.

Polypropylene is a perfect material, displaying high mechanical and thermal resistance.

Polypropylene hardness reaches 64 points in the Shore “D” scale, which is more than polyethylene. Moreover, polypropylene yielded higher results in the case of destructive tests carried out in low temperatures (in comparison to polyethylene), e.g. resistance to the environmental stress corrosion – ESCR (>3000 h for polypropylene and > 1000 h for polyethylene).

Polypropylene is resistant to UV radiation (contains UV stabilisers) and displays high thermal resistance as it is intended to be used in high temperatures (polyethylene in max. 60° C and 80°, whereas polypropylene operation temperature reaches 100°C and 110°C).

3LPP coating protects steel pipes efficiently against mechanical damage.

3LPP coating displays extremely good performance in the following areas:

adhesion of to steel pipe surface,

resistance to impacts,

resistance to abrasion,

resistance to penetration force,

hardness and stiffness,

unit grounding resistance of the gas main.

3LPP Pipe Coating is used for construction of long distance pipelines for combustible liquids and gases, nuclear station pipelines, heating system pipelines, general-purpose pipelines, vessels, mechanical engineering and instrumental engineering.

Refineries
Power Plants
Boilers
Ship Building
Heat Exchangers
Condensers
Paper & Pulp
Marine Applications
Nuclear Power
Fossil Fuel Power Plants

Specification

3LPP Coating is a multi-layer coating according to DIN 30670, ISO 21809-1, CAN/CSA Z245.21 standards

Suitable Steel pipe material for 3LPP Coating

Standard

DIN 30678-2013 Polypropylene coatings on steel pipes and Fittings

ISO 21809-1:2011 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems -- Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)

NFA 49-711 External Coating with Three Polyproplene Layers Coating, Application by Extrusion

SHELL DEP 31.40.30.31-CSPC External Polyethylene and Polypropylene Coating for Line Pipe

Process

Process Flowchart of 3LPP Coating

Sindara Steel Co., Ltd

Company Details

Main Market: the Middle East, Southeast Asia, South Africa,W...

BusinessType: Manufacturer                 No.of Employees: 200-300                                               

Brands:Sindara                                        Annual Sales: 30000000-50000000

Year Established: 2016                          Customers Served: 20000+

Introduction

Hunan Dingchen Pipe Industry Co., Ltd. is a professional factory integrating the production and research and development of steel pipes, pipe fittings, valves and powder. It is dedicated to providing one-stop services for global customers in terms of pipe materials, pipe fittings, valves and powder. The company's registered capital is 108.8 million yuan and it is located at Jingwei Road, Jiuhua Industrial Park, Xiangtan, Hunan Province. The factory strictly follows the ISO 9001 quality management system for on-site management and has successively obtained ISO 9001, ISO 14001, ISO 45001, AAA credit rating certification, etc. The products have passed the inspections and recognition of international authoritative third-party institutions such as SGS, BV, MOODY, and TUBOSCOPE.

As of the end of 2023, the company's total assets exceeded 2 billion yuan, annual revenue exceeded 500 million yuan, and the total number of employees exceeded 300. The company has 3 subsidiaries, 5 production bases and 3 research and development centers. It is one of the top 500 private enterprises in the country, a national technological innovation enterprise, a national key high-tech enterprise, a national green demonstration factory and a national AAA-level quality credit enterprise.

Sindara Steel Co., Ltd. is a professional export subsidiary corporation of Hunan Dingchen Pipe Industry Co., Ltd., dedicated to providing pipe, pipe fittings,valve,powder. product services to global customers. Over the years, Sindara Steel Company's products have been widely used in urban pipeline construction, construction, pipeline transportation, coastal and port construction, oil and gas extraction, food and medicine factory construction and other engineering projects. Partners are spread across dozens of countries and regions in Southeast Asia, the Middle East, Europe, Africa, South America, and Oceania, providing products and services to many Fortune 500 companies oil, gas and EPC companies, such as: PEMEX, EGPC, NNPC, etc.

Main Inspection Equipments