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PTFE CUSTOMER PART

Steel-Flined PTFE Insertion Pipe Product Introduction

Product Overview

The Steel-Flined PTFE Insertion Pipe is a high-performance composite pipe made by combining a carbon steel/stainless steel outer shell with a Polytetrafluoroethylene (PTFE) inner liner. It perfectly integrates the mechanical strength of metal materials with the exceptional corrosion resistance of fluoroplastics, making it an ideal solution for conveying highly corrosive media.

Core Advantages

· Superior Corrosion Resistance: Withstands all strong acids and alkalis, including aqua regia and hydrofluoric acid.

· Dual Protection Structure: 2-5mm thick PTFE lining provides comprehensive corrosion protection; metal shell ensures mechanical strength.

· Broad Temperature Range: Long-term stable use from -40°C to 180°C, short-term up to 200°C.

· Excellent Fluid Properties: Smooth inner wall (Ra ≤ 0.8μm), low resistance, anti-scaling.

Product Specifications

· Diameter Range: DN10 - DN800 (Standard: DN15 - DN500)

· Working Pressure: 0.6 - 1.6 MPa (Reinforced type up to 2.5 MPa)

· Connection Methods: Flange, Thread, Welding, Quick-connect, and more.

· Service Life: Over 10 years (in corrosive environments)

Typical Applications

· Chemical Industry: Pipelines for strong acids and alkalis.

· Environmental Engineering: Connection pipes for wastewater and exhaust gas treatment equipment.

· Power & Metallurgy: Flue gas desulfurization, electrolyte transport pipelines.

· Pharmaceutical & Food: High-purity media transport (FDA certified version available).

Quality Assurance

· Strict Testing: 100% spark test + 1.5 times pressure test.

· International Certifications: Certified by TSG D0001 pressure pipeline standards, FDA, etc.

· Process Guarantee: Compression molding and sintering process ensures seamless lining.

With its excellent corrosion resistance and reliable structural strength, the Steel-Flined PTFE Insertion Pipe has become the preferred pipeline product in fields such as chemical industry and environmental protection. We can provide optimized anti-corrosion transport solutions based on your specific working condition requirements.

The Steel-Flined PTFE Insertion Pipe solves the durability problem of pipelines in highly corrosive conditions through its innovative composite structure. We provide full-process services from selection and design to installation guidance, ensuring the safe and reliable operation of the pipeline system.

Core Characteristics

Characteristic	Parameter/Performance	Application Advantage
Corrosion Resistance	Resists all strong acids & alkalis (incl. aqua regia, HF)	Solves corrosive media transport challenges
Operating Temperature	-40°C ~ +180°C (short-term 200°C)	Stable use across a wide temperature range
Mechanical Strength	Compressive ≥6MPa, Tensile ≥50MPa	Meets high-pressure pipeline requirements
Fluid Properties	Smooth inner wall (Ra ≤ 0.8μm)	Reduces fluid resistance, prevents scaling
Service Life	Over 10 years (corrosive environment)	Significantly reduces replacement frequency

Structural Parameters

Parameter	Standard Specification	Customization Range
Nominal Diameter (DN）	15-500	10-800
Single Length (m)	1-6	0.5-12
Shell Material	Q235B/304/316L	Carbon Steel/Stainless Steel options
Connection Method	Flange(GB/T 9119)	Thread/Welding/Quick-connect

Chemical Resistance Performance

Chemical Medium	Concentration (%)	Withstand Temp. (°C)	Resistance Rating
Sulfuric Acid	98	150	Excellent
Hydrochloric Acid	37	120	Excellent
Sodium Hydroxide	50	120	Excellent
Hydrofluoric Acid	40	60	Good
Organic Solvents	100	80	Excellent

Product Type Comparison

Model	Structural Features	Applicable Media	Special Process
STD	Standard Flange Connection	General Corrosive Media	Compression Molding
HP	High-Pressure Reinforced Structure	High-Pressure Systems	With Reinforcing Rings
FP	Food Grade Polished Inner Wall	Pharmaceutical/Food	Electropolishing
EX	Anti-static Treatment	Flammable & Explosive Environments	Carbon Filled

Installation Technical Parameters

Parameter	Standard Requirement	Precautions
Support Spacing (m)	≤1.5 (DN≤50)	Prevent sagging
	≤2.0 (DN50-100)
	≤3.0 (DN>100)
Flange Bolt Torque (N·m)	Per GB/T 9124	Tighten diagonally
Thermal Compensation	Compensator every 30m	Required when ΔT>50°C
Pressure Test Standard	1.5 x Working Pressure	Hold for 30 minutes

Industry Certifications

Certification Type	Standard Number	Applicable Scope
Pressure Pipeline	TSG D0001	Industrial Piping
Explosion Protection	ATEX 94/9/EC	Explosive Atmospheres
Food Grade	FDA 21 CFR 177	Food & Pharmaceutical
Environmental Protection	RoHS 2.0	General

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Publisher：Hansa seal Pubtime：2022-05-17 16:24:00 Close