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

* Suitable for uneven load, easy relaxation of joint force, periodic change of temperature and pressure, impact or vibration.

* Is the valve, pump, heat exchanger, tower, manhole, hand hole and other flange connections of the static seal original,

* Widely used in petrochemical, machinery, power, metallurgy, shipbuilding, medicine, atomic energy and aerospace and other departments.



FILLED MATERIAL AND MAIN PROPERTIES





Filler


Temperature(℃ )


Max Pressure


Media


Compression(% )


Rebound(% )


Relaxation(%)




F.G.


-220--550


250 BAR


corrosive


18--30


≥17


≤18




ASB


-150--450


100 BAR


vulgaris air tightness


18--30


≥19


≤28




PTFE


-200-- 250


100 BAR


corrosive


18--30


≥15


≤13




NAF


-100--350


100 BAR


vulgaris air tightness


18--30


≥19


≤28




MICA


-150--800


100 BAR


H-TEMP


18--30


≥19


/




CER


-200--1090


100 BAR


Ultra-TEMP


18--40


≥19


/





 

MATERIALS FOR OD AND ID,MAIN PROPERTIES





Materials


Mark


Hardness(HB)


Temperature(°C)




Carbon steel


CS


120


-40~+540




SUS 304


304


130~180


-195~+550




SUS 316L


316L


130~180


-100~+550




SUS 321


321


130~190


-195~+760




HASTELLOR-B2


HASTB


215


-185~+1090




INCONEL-600


INC600


150


-100~+1090




MONEL-400


MON


150


-130~+820




Ti


T2


215


-195~+1090





 

STANDARD

·HG20610 /HG20631 / ·ASME B16.20/·DIN / BS 3381-1999

·JIS B2404-1999 JIS TS-1998

·GB/T4622.2 /·JB/T4719 /SH3407  and so on

 

CHARECTERISTIC

1.The applicable working condition range is wide. Can resist high temperature, high pressure, and adapt to the use condition of ultra-low temperature or vacuum. By changing the material combination of the gasket, the chemical corrosion problem of the various media to the gasket can be solved.

2.The stress compensation ability is strong. The sealing performance is stable and reliable at the station with frequent temperature and pressure fluctuation.

3.The sealing performance is excellent.

4.The surface accuracy requirement for flange sealing contact with the gasket is not high. 5.The installation is convenient, and the pre-tightening pressure of the gasket is low.

 

Our Services

 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.

Company Information

 

Zhenjiang Chunhuan Sealing Material Co., Ltd is one of the fluoroplastics processing enterprises taking the lead in passing the IS09001 quality system certification. And with the strength of PTFE products, which are superior quality with REACH,RoHS,MSDS certificate.
Our group mainly manufactures products: PTFE rod, PTFE film, pipes, sheets & mats, PTFE push rods & extrude rods, PTFE turning plates & teflon fi

Green PTFE gasket

Green Ptfe gasket is also called Filled ptfe gasket.

The modified ptfe gasket has the characteristics of corrosion resistance, aging resistance, low friction coefficient, non-stickiness, wide temperature range and good elasticity.

The working temperature is up to 250℃. Good mechanical toughness; Even if the temperature drops to -196℃, the elongation of 5% can be maintained




MAIN PROPERTIES





Properties


Unit


Result




Apparent density


g/cm 3


2.10~2.30




Tensile strength(min)


MPa


15.0




Crack elongation(min)


%


150




Dielectric strength(min)


Kv/mm


10





 

 

SPECIFICATION

  PTFE Envelope Gasket





               Outside Diameter


                  Inside Diameter


                  Thickness




1-7/8’’(48mm)


1/2’’(12.7mm)


 

 

0.04’’(1.02mm)       1/15’’(1.6mm)        3/16’’(4.8mm)        1/4’’(6.4mm)




2-1/4’’(57mm)


3/4’’(19mm)




2-5/8’’(67mm)


1’’(25.4mm)




3-3/8’’(86mm)


1-1/2’’(38mm)




4-1/8’’(105mm)


2’’(51mm)




5-3/8’’(136.5mm)


3’’(76mm)




6-7/8’’(175mm)


4’’(102mm)




8-3/4’’(222mm)


6’’(152mm)




11’’(279mm)


8’’(203mm)





Note:Thickness    Gasket slot width

 

 PTFE Flange Gasket





Code


Outside Diameter(mm)


Inside Diameter(mm)




                                                           RF  GASKET LIST




10A ~ 600A


53 ~ 700


18 ~ 615




                                                          FF GASKET LIST




10A ~ 600A


90 ~ 795


18 ~ 614





 

Different standards of different specifications gasket, according to customer drawings for processing

Packaging & Shipping

 

 Type 1

 

 

Type 2



 

Company Information 

 -> Our factory is located in Yongsheng Industrial Development Zone,Yangzhong City,Jiangsu, which has convenient transportation and elegant surrounding.  You are warmly welcome to visit our factory.

 

-> We are a Professional PTFE manufacturer for more than 30 years, and now being a leading company in China after the development..

 

-> We specialize in PTFE which include sheet, bar, tube, tape, film, gasket,  braided packing and all special type components. We can meet your special demand.

 

-> Pls feel free to contact me.I will try my best to answer your questions about our products.

 

 

OUR WORKSHOP

 

 

OUR  WAREHOUSE

Filled PTFE Gasket is made by cutting PTFE stick, pipe and sheet into flat shape,V shape gasket and valve annulus.

 

 Features


 Acid and alkali resistant ,Chemical resistant
 Has minimum friction coefficient of all know pure material
 Non-viscous, no aging 
Now molds can be made according to customers requirements.