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Gasket Materials and Contact Facings Effective Gasket Width The case sign of PP Product No.
Special type spiral wound metal gasket Heat exchanger spiral wound metal gasket
설계 및 사용시의 주의사항
 

Gasket Factors (m) for Operating Conditions Minmum Design Seating Stress (y)
Gasket Factors(m) Gasket
Facotrs
(m)
Minmum
Design
Seating
Stress
(kgf/mm³)
Sketches Use
Factors
Surface

Use
Colum

Flange
Surface
finish(㎛)
Refer to table (1-a)
Rubber Sheet
Below 75A shore durometer
0.50 0.00 (1a),(1b)
(1c),(1d)
(4),(5)
B 500
~
750
75A of higher Shore durometer
1.00 0.14
Asbestos with suitable
binder for opperating
Conditons.
3.2 mm thickness
2.00 1.12
1.6 mm thickness
2.75 2.60
0.8 mm thickness
3.50 4.57
Elastomer with Cotton fabric insertion
1.25 0.28
Elastomer with
Asbestor fabric
Insertion
(withh or without wire
Reinforcement)
3 ply
2.25 1.55
1 ply
2.50 2.04
1 ply
2.75 2.60
Vegetable Fiber
1.75 0.77
Spiral wound
Gasket
Asbestos filled
3.00 7.00 (1a),(1b) 125
~250
*3
Graphite & Teflon filled
3.00 7.00
Non-Asbestos filled
3.00 7.00
Ceramic & Mica filled
3.00 7.00
Corrugated
Metal Jacketed
Gasket
Soft Aluminium
2.50 2.04 63~80
Soft Copper of Brass
2.75 2.60
Soft Iron of Soft Steel
3.00 3.16
Moonel or 4%~6% Chrome
3.25 3.87
Stinless steel or Alloy steel
3.50 4.57
Corrugated
Metal Gasket
Soft Alumium
2.75 2.60 (1a),(1b)
(1c),(1d)
~63
Soft Copper of Brass
3.00 3.16
Soft Iron of Soft Steel
3.25 3.87
Moonel or 4%~6% Chrome
3.50 4.52
Stainless Steel or Alloy steel
3.75 5.34
Flat Metal
Jacketd Gasket
Soft Aluminium
3.25 3.87 (1a),(1b)
(1c)²,(1d)²
63~100
Soft Copper of Brass
3.50 4.57
Soft Iron of Soft Steel
3.75 5.34
Monel
3.50 5.62
4%~6% Chrome
3.75 6.33
Stinless steel or Alloy steel
3.75 6.33
Serrated Metal
Gasket
Soft Aluminium
3.25 3.87 (1a),(1b)
(1c),(1d)
(2),(3)
H ~ 63
Soft Copper of Brass
3.50 4.57
Soft Iron of Soft Steel
3.75 5.34
Moonel or 4%~6% Chrome
3.75 6.33
Stainless Steel or Alloy steel
4.25 7.10
Flat Metal
Gasket
Soft Aluminium
4.00 6.19 (1a),(1b)
(1c),(1d)
(2),(3)
(4),(5)
A ~63
Soft Copper of Brass
4.75 9.14
Soft Iron of Soft Steel
5.50 12.66
Moonel or 4%~6% Chrome
6.00 15.33
Stinless steel or Alloy steel
6.0 18.28
Ring Type Joint
Soft Iron of Soft Steel
5.50 12.66 (6) ~63
Moonel or 4%~6% Chrome
6.00 15.33
Stinless steel or Alloy steel
6.50 18.28

1.


2.
3.
This table gives a list of many commonly used gasket materials and contact facings with suggested design values of "m" and
"y" tha have generally Proved satisfactory in actual serivice wiehn using effective gasket seating with "b" given in the table on
the nest page. THe design values and toehr details given in thsi table are suggested only and are net mandatory.
The surface of a gasket having a lap having a lap should not be against the nubbin.
Flange survace finish : 1) Tongue and groove, small male and female : 125uin for flange side
2) Other face flange : 125~250uin for lange side.
3) Hot hydrogen hazardous materials and hard to hold fluids : 125uin for flange side.

   




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