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Ningbo Techo Sealing Gasket Co.,Ltd

Add:No.345 Qiaotou Road, Qiaotou Town, Cixi, Ningbo China

Contact us:QianJin Yao

Tel:+86-574-66376117

Fax:+86-574-63555206

Mobile(whatsapp) :+86-13567800866

E-mail:sales@gasketcn.com

Pure PTFE Fiber Packing

Pure PTFE Fiber Packing

I. Definition: it is a kind of braided packing by PTFE fiber, without soaking in PTFE emulsion, or treatment by lubricating oil, therefore it has no other supplements, it is widely used in chemical industry (other than Fluorine gas and alkali metals), pharmacy, food, papermaking, chemical fiber...

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Product Details

I. Definition:
 it is a kind of braided packing by PTFE fiber, without soaking in PTFE emulsion, or treatment by lubricating oil, therefore it has no other supplements, it is widely used in chemical industry (other than Fluorine gas and alkali metals), pharmacy, food, papermaking, chemical fiber and other industries. It has stable chemical property, well heat resistance, low coefficient of friction, and good wear resistance and so on. But it has some disadvantages as well: it has worse heat conductivity, which will lead to packing leakage because of burning, its thermal expansion coefficient is larger, and therefore, it is easy to creep under certain temperature and pressure, or it may lead to cold-flow and reduce the sealing effect.

Actual application comparison of PTFE and other packing

Liquid
     device

Axle diameter
     mm

Revolution
     r/min

Liquid

Temperature
   ℃

Pressure
     Mpa

Service life

PTFE packing

Other seal packing


       
     Centrifugal pump

32

3600

Caustic soda

100

9.0

60 days

Oil-impregnated asbestos seal packing for 7 days

32

3600

Urea

130

--

34 days

Oil-impregnated asbestos seal packing for 2~5 days

50

1750

Dibutyl ester

100

2.0

14 days

PTFE-impregnated asbestos seal packing for 1~5 days

34

1750

Nitric acid

Room temperature

--

210 days

Blue asbestos seal packing for  14~21days

34

1740

Methyl amine

Room temperature

7.0

96 days

Blue asbestos seal packing for 14 days

30

1700

45% sulphuric acid

77

--

46 days

PTFE-impregnated blue asbestos seal packing for 7 days

30

1740

Chromate

Room temperature

4.5

60 days

Blue asbestos seal packing for 30 days

25

1750

Hydrochloric acid

Room temperature

4.0

10 days

Blue asbestos seal packing for 7 days

Pluger pump

64

60/min

Phenol

149

20.0

60 days

Oil-impregnated asbestos seal packing for 14 days

Pluger pump

50

60 /min

Methanal

Room temperature

50.0

80 days

Oil-impregnated asbestos seal packing for 14 days

Valve

18

--

50% sulphuric acid

77

--

210 days

Blue asbestos seal packing for 14~21 days

Valve

18

--

sulphuric acid

--

--

150 days

Asbestos seal packing for 10days

Autoclave

88

400

Ethylenediamine

200

4.0

720 days

Babbit gasket for 360days

Autoclave

32

275

60% sulphuric acid

200

50.0

60 days

PTFE raw material strand for 14days


TECHNIQUE DATA

Centrifugal  separator

Reciprocating pump

Valve

PH VALUE

0--14

LINEAR Vg(M/S)

4

2

2

PRESSURE(Bar)

20

100

200

WORKING TEMPERATURE

-200CENTIGRADE ~ 260 CENTIGRADE

DENSITY:g/cm3

1.4~1.6


P-315-1 PTFE (silica gel cored) packing

INCH ″

1/8

3/16

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1

MM

3

5

6

8

10

11

12

16

20

22

25

KG/M

0.08

0.16

0.25

0.38

0.53

0.73

0.93

1.42

1.97

2.66

3.59

TECHO is one of the leading manufacturers and suppliers of various sealing products in China. We have skillful and experienced workers in our factory. Now take action to wholesale quality pure ptfe fiber packing made in China with us.

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