What raw materials can Ruitu bromine extraction systems process?

Our bromine extraction systems are designed for seawater, bitter brine, salt lake brine, oilfield water, bromine-bearing industrial wastewater and concentrated brine from desalination plants. The process route is selected only after we review a laboratory analysis of your feed.

Do you supply single machines or complete plants?

Both. We supply individual machines such as salt washers, roller crushers, dryers, vibrating screens, belt conveyors and hot air furnaces, and we also deliver complete turnkey lines under an EPC contract.

What is included in your EPC service?

Water quality testing, site selection support, process design, project launch preparation, equipment manufacturing and procurement, packing and shipping, installation and commissioning, operator training, finished product production guidance, and output buy-back or decommissioning support where agreed.

Can your salt washing equipment produce food-grade salt?

Our salt washing machinery is used for both food-grade and chemical-grade salt. The achievable grade depends on the crude salt composition and the standard that applies in your market, so we design the washing, crushing, drying and screening stages around your target specification.

How do you support overseas installation?

Our engineers can be dispatched to site for installation and commissioning, train your operators, and stay involved until the line produces finished product at the designed daily capacity.

How do I start a project with Ruitu?

Send us your raw material analysis, target daily capacity, product specification and site information by email or phone. Our technicians will prepare a preliminary budget estimate and an economic benefit analysis based on your budget and expected output.

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China PTFE Lined Pipe Products, Service

Brand: Ruitu Automation

Product origin: China

Type: Straight pipe product with an outer metal layer and PTFE lining.

Application: Serves as the basic straight pipe component for conveying corrosive media and is a core part of the piping system.

Advantages: Combines the corrosion resistance of PTFE with the structural strength of metal, enabling long-term stable conveyance of highly corrosive media. The flanged connections offer high adaptability and facilitate connection with other pipe fittings.

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Product Description

Core Overview

PTFE-lined pipe is a high-performance composite pipeline integrating the structural robustness of carbon steel/stainless steel with the exceptional chemical inertness of polytetrafluoroethylene (PTFE). Engineered to safely transport aggressive media like strong acids, alkalis, and oxidants, it is a staple in petroleum, chemical, pharmaceutical, and food processing industries. Its seamless bonding of metal and PTFE ensures reliable operation across extreme temperature and pressure ranges, eliminating contamination risks and extending service life.

Basic Specifications

Item	Details
Product Name	PTFE (Polytetrafluoroethylene) Lined Pipe
Executive Standards	HG/T 21562, ASME B16.5, GB/T 12224
Nominal Diameter	DN15 – DN300 (1/2" – 12")
Pressure Rating	PN10, PN16, PN25, PN40 / Class 150, Class 300
Pipe Type	Straight seamless lined pipe
Shell Material	Carbon Steel (Q235B, 20#), Stainless Steel (304, 316L)
Lining Material	Polytetrafluoroethylene (PTFE)
Lining Thickness	2.0–6.0 mm (Standard: 3.0–4.0 mm)
Connection Type	Flanged Connection (RF Raised Face)
Standard Length	1000mm / 2000mm (Custom length available)
Operating Temperature	-20℃ to +180℃
Applicable Medium	Strong acids, strong alkalis, oxidants, organic solvents and other highly corrosive media
Factory Inspection	Hydrostatic pressure test, Spark pinhole leakage test (5kV)
Main Applications	Chemical, petrochemical, pharmaceutical, metallurgy, environmental protection, fluorine chemical industry

Typical Dimensions Table

Nominal Diameter DN	Steel Pipe Outer Diameter (mm)	Standard Pipe Length (mm)	Flange Outer Diameter (mm)	Bolt Circle Diameter (mm)	Lining Thickness (mm)
15	21.3	1000/2000	90	60	3.0
20	26.9	1000/2000	100	70	3.0
25	33.7	1000/2000	115	80	3.5
32	42.4	1000/2000	140	100	3.5
40	48.3	1000/2000	150	110	3.5
50	60.3	1000/2000	165	125	4.0
65	76.1	1000/2000	185	145	4.0
80	88.9	1000/2000	200	160	4.0
100	114.3	1000/2000	220	180	4.5
125	139.7	1000/2000	250	210	4.5
150	168.3	1000/2000	285	240	5.0
200	219.1	1000/2000	340	295	5.5
250	273.0	1000/2000	405	355	6.0
300	323.9	1000/2000	460	410	6.0

Core Advantages

Advantage Category	Key Benefits
Extreme Corrosion Resistance	Inert to 99% of industrial chemicals, preventing pipeline degradation and media contamination.
Wide Temperature Tolerance	Operates stably from -100°C to 250°C, suitable for cryogenic to high-temperature processes.
Low-Friction Hydraulics	Ultra-smooth inner surface reduces flow resistance by 30% vs. standard pipes, preventing scaling.
Pressure & Vacuum Stability	Withstands up to 3.0MPa positive pressure and -0.96MPa vacuum, adapting to diverse industrial systems.
Long-Term Durability	Minimal maintenance required, with a 50+ year lifespan under standard operating conditions.

Frequently Asked Questions (FAQ)

What makes PTFE-lined pipe superior to traditional metallic pipelines?

PTFE-lined pipes combine the structural strength of carbon or stainless steel with the chemical inertness of PTFE. This makes them virtually impervious to attacks from strong acids, alkalis, and oxidants, preventing corrosion and avoiding medium contamination.

What is the standard operating temperature range?

Standard PTFE-lined piping systems operate continuously and reliably from -20℃ up to +180℃, with certain custom configurations tolerating extreme environments from -100°C to +250°C.

How is the quality and integrity of the PTFE lining verified before delivery?

Every section undergoes strict non-destructive quality tests before dispatch, including a hydrostatic pressure test to confirm casing strength and a high-voltage spark pinhole test (typically 5kV) to ensure a completely leak-proof liner.

Can PTFE-lined pipes handle full vacuum conditions?

Yes, high-grade PTFE-lined piping is engineered to maintain vacuum stability down to -0.96MPa alongside positive pressure operations up to 3.0MPa, preventing lining collapse under negative pressure.

Are custom lengths and sizes available?

While standard pipe lengths are manufactured in 1000mm and 2000mm configurations with nominal diameters ranging from DN15 to DN300, tailored spool pieces and custom dimensions can be fabricated to match specific process piping layouts.