PTFE Lined Flange– high-density polyethylene pipe lining

Maitrk PTFE Lining is a reputable producer of PTFE, FEP, and PFA-lined flanges in Indonesia, providing high-performance solutions for corrosive fluid handling systems. Our state-of-the-art lining process involves comprehensive surface treatment, fusion bonding, and accurate molding processes to produce a smooth, leak-free finish. With the use of high-quality fluoropolymers such as PTFE, FEP, and PFA, our products provide superior chemical resistance, low friction, and thermal stability. These materials also have very good flexibility, impact resistance, and anti-stick characteristics, which make them suitable for challenging industrial applications.

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What is PTFE Lined Flanges?

PTFE-lined flanges are industrial pipe flanges with a lining of Polytetrafluoroethylene (PTFE), a high-performance fluoropolymer. Due to its high chemical resistance, non-stick characteristics and thermal stability, PTFE acts as a protective coating between corrosive fluids and the metal flange. This avoids corrosion, contamination and leakage, providing durability and safety during use. Found commonly in industries including chemical processing, pharmaceutical, food and beverage and oil and gas PTFE-lined flanges form part of corrosive and poisonous chemical treatment processes for joining pipes and equipment. Provided in many different types, including slip-on, weld neck, blind and lap joint flanges, they can even be designed specially according to specifications. Their tough design and stability render them crucial for safe and efficient fluid transfer.

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PTFE Lined Pipe Specification

Size : 25 NB to 1000 NB
Outer body : ASTM A 395 Gr 60-40-18
Flange Connection : ANSI B 16.5
Face to Face : ANSI B 16.10
Spark Test : 15 KVA
Hydro Test : at 29.8 kg/cm2
FEP- Max Temp : 180° C
PP Max Temp : 100° C
PFA Max Temp : 200° C

Largest PTFE Lined Flanges Supplier in Jakarta, Indonesia

Maitrk PTFE Lining is a leading supplier of PTFE Lined Flanges in Jakarta, Indonesia, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.

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Why Choose Maitrk PTFE Lining for PTFE Lined Flanges?

Types of PTFE Lined Flanges We Offer

Dimension Chart of PTFE Lined Flanges

NB-1	NB-2	TH
20	15	35
25	15	35
25	20	35
40	25	35
50	25	35
50	40	35
80	25	45
80	40	45
80	50	45
100	25	45
100	40	45
100	50	45
100	80	45

NB-1	NB-2	TH
150	25	50
150	40	50
150	50	50
150	80	50
150	100	50
200	80	50
200	100	50
200	150	50
250	100	50
250	150	50
250	200	50
300	150	50
300	200	50
350	300	50

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Quality Control Facilities at Maitrk PTFE Lining

Benefits of PTFE Lined Flanges

Superior Corrosion Resistance
Ideal for handling aggressive chemicals and corrosive media
Leak-Proof Performance
Ensures tight sealing and prevents fluid leakage
Custom Fabrication Options
Available in various flange types and sizes to fit specific applications
Low Maintenance
Minimizes downtime and reduces overall maintenance costs

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Applications of PTFE Lined Flanges

Frequently Asked Questions (FAQ)

What is a lined flange?

A lined flange is a metal flange that has a corrosion-resistant plastic lining (PTFE, FEP, or PFA) to protect against chemical attack and ensure clean flow.

What's the difference between PTFE, FEP, and PFA?

PTFE: Best chemical resistance, slightly less flexible.
FEP: Good clarity, more flexible than PTFE.
PFA: Combines PTFE’s resistance with FEP’s flexibility, and allows for welded linings.

When should I use a lined flange?

Use lined flanges in piping systems that carry corrosive, high-purity, or reactive chemicals.

Are lined flanges pressure and temperature rated?

Yes, they have pressure/temperature ratings based on the liner and base metal, typically up to 150 psi and 200°C (392°F).

How do I install a lined flange?

Installation is similar to standard flanges, but care must be taken not to damage the liner. Use torque-controlled tightening and compatible gaskets.