Description:Octagonal
ring joint gasket is machined from solid metals in a variety of
shapes.Octagonal ring joint gasket are designed for high pressure, high
temperature or highly corrosive applications.ZD-G1810 ring
joint gasket octagonal type is also called RTJ octagonal type. Similar
to ZD-G1800, Ring Joint Gasket octagonal type is made from solid metal,
but becomes octagonal shape. It is mechanically made from integral
metal. The available materials include soft iron, SS304, SS316, carbon
steel, SS321.
Application:Octagonal
ring joint gasket is mainly used in the joint part of high-temperature,
high-pressure pipeline, tower, groove and heat exchanger, suitable for
steam industry, petroleum industry and petrochemistry.
Note：The
material of the oval ring jont gasket must be 15~20HB
lower than the hardness of flange,and this kind of
gaskets is non-recyclable.
The cross section
Mark
Tolerance(mm)
P
±0.177
W
±0.203
T
±0.39
A
±0.203
θ
23°±0.5°
Γ1
±0.203
Available Material:
Material
Maximum
Hardness
Temperature（ ℃ ）
Abbreviations
Brinell
Rockwell“B”Grade
Soft Iron
90
56
-60～500
D
Low Carbon Steel
120
68
-40～540
S
SS304
160
83
-250～540
304
SS304L
160
83
-250～540
304L
SS316
160
83
-200～815
316
SS316L
160
83
-200～815
316L
SS321
160
83
-200～870
321
SS347
160
83
-200～870
347
SS410
170
86
-40～850
410
5Cr-0.5Mo
130
-29～650
Copper
80
-100～315
Aluminum
35
-200～425
Inconel 600
150
-100～1095
Incoloy 825
150
-100～1095
Monel 400
150
-100～760
Titanium
215
-200～540
Nickel 200 -
110
200～760
Hastelloy B2
230
-100～1095
Hastelloy C276
210
-100～1095
Warning: Gasket
materials should never be recommended when both the
temperature and the pressure are at the maximums
listed. Properties and applications shown are typical.
No application should be undertaken by anyone without
independent study and evaluation for suitability. Never
use more than one gasket in one flange joint, and never
reuse a gasket. Improper use or gasket selection could
cause property damage and/or serious personal injury.
The data reported is a compilation of field testing,
field service reports and/or in-house testing. While
the utmost care has gone into publishing the information
contained herein, we assume no responsibility for
errors. The information and specifications contained
in this website are subject to change without notice.
This revision cancels and obsoletes all previous
editions.
