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Reinforced graphite gaskets

Reinforced graphite gaskets

 

Graphite gaskets (YY-SG1008)

Graphite gaskets also known as enhanced or high-strength graphite gasket graphite gasket is a gasket by sprint metal tooth plate or metal plate and expanded graphite composite particles repression. It is usually from reinforced graphite sheet formed by stamping or cutting the gasket specialized cutting equipment. Reinforced graphite gasket inner reinforcing materials commonly used in ss304, ss316 or tinplate thickness 0.05 ~ 0.2mm, in the form of enhanced sprint board composite gasket, stencil reinforced composite gaskets, flat-reinforced composite gasket. Graphite gaskets can be made into a variety of complex geometric shapes round and gaskets such as water gauge gasket, head gasket, exhaust pipe gaskets, heat exchanger gaskets with ribs and other applications very extensive.

High-strength graphite gaskets as needed can be made with stainless steel edging graphite composite gaskets in several forms as follows:

1. Basic graphite gaskets

Edge graphite gaskets 

2. Package

3. package outside graphite gaskets

The inner and outer edge of graphite gaskets

Graphite gaskets used wrapping material 304 or 316L stainless steel.

Features: It has good corrosion resistance, high / low temperature, radiation-resistant, good compression resilient and high strength required preload than metal gaskets and spiral wound gasket is smaller flange less demanding side, is a more economical and practical gasket. If the form of edging to maintain the excellent performance of the original graphite gaskets, and easy installation and removal, easy to damage, but also prevent the media and the oxygen in the air outside of the gasket erosion, improved temperature and pressure performance.

Equipment: sealing parts of pipes, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerator and other flange can replace asbestos rubber gasket, ironclad pad tablets. Graphite gaskets Max size limit, special specifications or various non-standard products according to customer requirements to develop.

customers to choose different materials depending on the use of enhanced working conditions, there are special materials may be required.

Graphite gaskets technical standards:

Can provide any standard and non-standard sizes, including ASME, DIN, JIS, GB and other standards. Available round, square and other profiled shape, and provide reinforced bar and the inner and outer edges shaped corrugated metal gaskets as needed.

Domestic standards:

GB / T 19675.1-2005 | pipe flanges with metal punch tooth plate of flexible graphite gaskets size GB / T 19675.2-2005 | pipe flanges with metal punch tooth plate of flexible graphite gaskets technical conditions JB / T 6628-1993 | Flexible graphite composite reinforced (board) pad

JB / T 6628-2008 | flexible graphite composite reinforced (board) pad

HG 20608-1997 | steel pipe flanges with flexible graphite gaskets (European system) HG 20629-1997 | steel pipe flanges with flexible graphite gaskets (American System)

Increasing material

Pressure
N/MM2

Temperature

Compression ratio

%

Rebound Rate%

Non-oxidized state

Oxidized state

ST Carbon Sprints board

≥4.8

-10-450

-10-550

30-35

15-20

SS304,SS316 Sprints board

≥4.8

-240-450

-200-600

30-35

15-30

SS304,SS316 Flat panel

≥4.8

-240-450

-200-600

30-40

10-15

Ss304, Stencil bord

≥4.8

-240-450

-200-600

40-50

15-20

Reinforcements

Breathability (cm3/min)
(Thickness 1.5mm\)

Tightness
(Thickness 1.5mm)

Seal constant

N2 m1/hr

Bumming oil A 
m1/hr

"M" 
Factor

"Y" 
preload pressure ratio

ST Carbon Sprints board

<=0.8

30

<0.5

3.0

9000

SS304,SS316 Sprints board

<=0.8

60

<0.5

2.5

4000

SS304,SS316 Flat panel

<=0.4

35

<0.5

2.0

900

Ss304, Stencil bord

≥1.0

70

<0.5

3.0

5000

project 

Density Tolerance

Carbon contentC≥%

Tensile strength

Sulfur content

Chlorine content

Stress relaxation rate

Loss on Ignition

Industrial

±0.06g/cm

98

4 Mpa

<1000ppm

<50ppm

10%

2.0≤%

Nuclear

±0.05 g/cm

99.5

5 Mpa

<700ppm

<35ppm

10%

0.5≤%

  

Gasket factor 

m=2

Use a pressure washer

≤10MPa

Temperature Gasket

-196-650

The minimum preload pressure ratio

y=30MPa

 

Contact Us

Shanghai Yunyao Industrial Co., Ltd.

Hotline:400-775-0697
Email:18601789201@163.com
Address:Lane 119, Prosperity Road 128, Pudong New District, Shanghai
Fax:0086 21 20943090  
Mobile:18601789201

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