Durable Molded PTFE Tube for Process Instrumentation with Chemical Inertness

• After-sales Service: Free Replacement or Refund
• Warranty: 24months
• Material: PTFE
• Model NO.: Molded PTFE Tube
• Water Absorption: ＜0.01%
• Contraction Percentage: ＜0.4%
• Tensile Strength: 25-45MPa
• Dielectric Strength: >1400
• Dielectric Constant: 2.1
• Elongtion at Break: 200-350%
• Compresion Strength: 24MPa
• Density: 2.1--2.3G/M3
• Elongation at Break: 200-350%
• Compression Strength: 24MPa
• Working Temp.: -180~260℃
• Melting Point: 330℃
• Produce Max.Temp.: 390℃
• Fire Resistance: V-0
• Bittle Point Temperature: -268℃
• Transport Package: Standard Export Packing
• Specification: 30-310mm
• Trademark: CHUNHUAN
• Origin: China
• HS Code: 39209910
• Production Capacity: 50tons/Month
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

PTFE TUBE

1.Material:100% virgin PTFE,no recycle.
2.Certificate:ISO9001,MSDS,RoHs,REACH,FDA,Certificate of origin.
3.Own best performance,can be filled other material such as Bronze,Fiber glass,Carbon,Graphiteand so on.
4.Payment item:T/T,L/C,DP or others.
5.Price item: FOB,CIF,CFR and so on.
6.Delivery time: As your request,usually within 7days.

Free samples can be offered as your requirements.

SPECIFICATION

Item	Specification
	Outside diameter(mm)	Wall thickness (mm)	Length(mm)
Pressed Tube	1~25	0.1~2.5	As your requirement
Extruded Tube	12.4~213	1.5~15	As your requirement
Die Pressed Tube	30~2000	10~500	100~300

MAIN PROPERTIES

Item	Unit	Value
Gravity	g/cm3	2.10-2.30
Tensile Strength	MPa	>25
Elongation Break	%	>150

Our Service
1)Your inquiry will be replied within 2 hours during working time,Within 24hours when rest time.
2)Our working time is 7.30 AM --17:30 PM,Monday to Saturday.
3)General samples time can be arranged within 2--5days.
4)Orders will be produced exactly as request and approved samples.
5)When mass production,we send photos to show the production line.And confirm the estimate time again.
6)At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.
7)Before shipment,our QC will have inspection to make sure the quality.
8)We always try best to ensure every order to delivery in time.
 
Payment Terms
1)T/T,Cash,L/C.
2)30% deposit,70% balance before shipment.
3)Lead time: 15 days after received deposited for 2tons.
4)Delivery way: By sea,By air, By EMS,DHL,UPS,TNT,FedEx.
 
Packing & Delivery
For sample: By EMS,DHL,UPS,TNT,FedEx
                 around 5--7 working days to arrive
 
For Bulk order:
1.Qty of 2tons,within 15 days.
2.Via Sea
3.Delivery time:we will finish production in 15days for 2tons.
4.For 20 GP,may nee around 30days.
 

Product Application

Company Profile

Chunhuan Group (Zhenjiang Chunhuan Sealing Group Co., Ltd.), established in 1985, is a leading manufacturer of fluoroplastic products, chemical semiconductor linings, and new energy sealing gaskets. The company primarily focuses on the research, development, and production of fluoroplastic series sealing products (for hydrogen energy and nuclear power applications) and chemical semiconductor linings. With subsidiaries in South Korea and Shanghai, the group has also established a joint venture with South Korea's Houcheng Group for semiconductor lining equipment. Main  production: PTFE  products, metal  seals  series, steel  lining  anti-corrosion series, engineering plastics series,rubber products series,it is the leading enterprise in the national fluoroplastics industry. The  company  supplies  more  than  300  varieties  of  PTFE  composite modified  materials,ranging  from standard  composite modified  materials (bronze,glass fiber,carbon,graphite,etc.) to  customized  solutions  to  meet different  production  needs  of customers.The  company  provides  flexible  quantity  and  fast  delivery service. The engineers have 35 years working experience in the field of PTFE,serving customers in more than 30 countries.

Our Advantages

Certifications

Packaging & Shipping

FAQ

1. Q: What outer diameter, inner diameter, and wall thickness ranges are available for these molded tubes? Is there a standard size list?
A: We offer highly flexible custom sizing. The outer diameter typically ranges from 20 mm to 800 mm, with wall thickness starting from 3 mm and fully customizable. Length is generally limited to within 300 mm due to the compression molding process. Since molded tubes are usually made to customer specifications, we do not maintain a standard size list. Instead, we can quickly provide a solution based on your drawings or application requirements.

 

2. Q: What are the performance differences between compression molded tubes and extruded PTFE tubes? How do I choose?
A: Compression molding is ideal for producing rigid tubes with thick walls and large diameters. The resulting products have more uniform density, low internal stress, and excellent dimensional stability, making them well suited for precision machined parts. Extruded tubes are better for thin-walled, long tubes with higher production efficiency but have limited size ranges. If your application requires thick walls, high strength, or large diameters, molded tubes are the more reliable choice.

 

3. Q: What is the maximum temperature resistance of virgin PTFE tubes? Will they deform under high heat?
A: Virgin PTFE has a continuous service temperature range of -180°C to 260°C. Within this range, it maintains excellent chemical inertness and mechanical properties. However, PTFE does soften at elevated temperatures and its load-bearing capacity decreases. If your application involves structural use at high temperatures, please share the specific conditions so we can recommend filler-reinforced options (e.g., glass fiber, carbon fiber) to improve high-temperature rigidity.

 

4. Q: What tolerances can be achieved for the inner and outer diameters? Can they meet precision fit requirements?
A: As-molded PTFE tubes typically come with machining allowance, with outer diameter tolerances around ±0.5 mm to ±1.0 mm and inner diameter tolerances around ±0.5 mm. If high precision is required (e.g., bearing liners, seal components), we recommend machining the finished part from a molded blank. We can also provide precision machining services, achieving tolerances within ±0.05 mm.

 

5. Q: Will there be voids or delamination inside the tube? How is purity ensured for virgin PTFE?
A: Our mature compression molding and sintering process uses strictly controlled heating and pressure profiles, resulting in void free and delamination free products. We use only virgin suspension PTFE resin from premium sources, with no recycled material or impurities added. This meets the stringent purity requirements of industries such as semiconductors and pharmaceuticals.

 

6. Q: What are the typical applications for this rigid PTFE tube? Can it handle highly corrosive media?
A: PTFE offers exceptional corrosion resistance against almost all strong acids, alkalis, and organic solvents. Compression molded tubes are widely used as chemical pipeline liners, anti corrosion sleeves, insulating jackets, mechanical seals, piston rings, and bearing retainers. The material's self lubricating properties also make it suitable for oil free sliding components.

 

7. Q: What is the minimum order quantity? Can you produce a single custom tube?
A: We support small batch customization, and single piece production is also available-ideal for R&D prototyping or equipment repair replacements. The MOQ is mainly affected by tooling and process costs. Standard sizes or common wall thicknesses have no MOQ restrictions; for very large sizes or special wall thicknesses, tooling costs may need to be shared. You can provide a drawing, and we will evaluate the optimal solution.

 

8. Q: What is the typical lead time for molded tubes? Can you ensure stable supply for bulk orders?
A: For standard size blanks, lead time is typically 7 to 15 working days after drawing confirmation. For bulk orders, we can reserve dedicated production slots to ensure consistent monthly supply. We maintain ample raw material inventory and have multiple molding presses to handle urgent orders flexibly.

 

9. Q: Can you machine features like threads, flange holes, or stepped geometries directly onto the molded tube?
A: Yes. Molded tubes are generally produced as cylindrical blanks, which can then be machined (turning, milling, etc.) to add threads, steps, seal grooves, flanged ends, and other features. We can provide semi finished or fully finished parts to save you the trouble of outsourcing secondary operations. Since PTFE is relatively soft, specialized cutting tools are required to maintain dimensional accuracy during machining.

 

10. Q: Is virgin PTFE suitable if my application demands higher strength or wear resistance?
A: Virgin PTFE offers moderate strength and good wear resistance. If higher compressive strength, wear resistance, or thermal conductivity is required, we recommend using filled PTFE compounds during molding-for example, with glass fiber, carbon fiber, graphite, or molybdenum disulfide. Based on your operating pressure, speed, and media conditions, we can suggest the most suitable filler formulation while still leveraging the advantages of compression molding for large size components.