Graphite/PTFE Filler Metal Spiral Wound Gasket for Flange Valve Pipe Sealing

Product Description

Product Description

Description of Products:

Metal spiral wound gasket is widely used as a sealing gasket at present. It is the best elastic gasket in semi-metal sealing gasket. It is made of V-shaped or W-shaped thin steel belt and various fillers alternately wound and can withstand The use of high temperature, high pressure and conditions suitable for ultra-low temperature or vacuum conditions can solve the problem of chemical corrosion of various gaskets by changing the material combination of the gasket. The structural density can be made according to the different locking force requirements to strengthen The main body and accurate positioning, winding gasket with metal inner ring and outer ring, using internal and external steel ring to control the maximum compression, the gasket surface contact surface of the flange sealing surface requirements are not high.
 

Application:
The pipelines, valves, pressure vessels, condensers, heat exchangers, towers, manholes, hand holes, and other flanges of petroleum, chemical, metallurgy, electric power, shipbuilding, and machinery industries are sealed at the flange joints.

Filled Material

Filler	Steel Belt	Inner	Outside
Asbestos spiral wound	SUS,304	carbon steel	carbon steel
Graphite Spiral Wound	SUS,316	SUS,304	SUS,304
PTFE Spiral Wound	SUS,316L	SUS,316	SUS,316

Main Properties

Filler	Temperature (°C)	Max Pressure (kg/cm2)
Graphite Spiral Wound	-200~550	250
Asbestos spiral wound	-150~450	100
PTFE Spiral Wound	240~260	100

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.
 

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 engineering plastic materials do you mainly produce?
A: We specialize in high-performance engineering plastic products such as PTFE (Polytetrafluoroethylene), PEEK (Polyetheretherketone), Nylon, and UHMW-PE (Ultra-High Molecular Weight Polyethylene).

2. Q: What are the key advantages of PTFE material?
A: PTFE offers excellent chemical resistance, high and low temperature stability (-200°C to +260°C), an extremely low friction coefficient, and outstanding insulation properties.

3. Q: Can you provide customized sealing components?
A: Yes, we support customization of seals (e.g., O-rings, gaskets, sealing rings) in various shapes, sizes, and materials based on customer drawings or technical requirements.

4. Q: Which industries are your products suitable for?
A: Our products are widely used in industries such as chemical processing, semiconductors, automotive, medical, food machinery, aerospace, and power equipment.

5. Q: Do you comply with international certification standards?
A: Our production follows the ISO 9001 quality management system, and some products are certified by FDA, RoHS, REACH, etc., meeting diverse market requirements.

6. Q: What is the minimum order quantity (MOQ)?
A: MOQ for standard products is relatively low, while custom parts depend on specifications. We strive to accommodate trial orders and small-batch requests.

7. Q: What is the lead time for delivery?
A: Standard products typically take 7-15 days, while custom parts require 2-4 weeks depending on complexity (subject to confirmation after order placement).

8. Q: How do you ensure the pressure and temperature resistance of seals?
A: We optimize material selection, conduct simulation tests, and implement strict production process controls (e.g., sintering, machining) to ensure performance compliance.

9. Q: Do you offer technical support and samples?
A: Yes, we provide free technical consultation and can send samples based on project needs (some samples may incur a nominal cost fee).

10. Q: How are products packaged and shipped?
A: We use dust-proof and moisture-proof packaging, with options for vacuum bags or wooden cases. Global logistics (air/sea/express) are supported.