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Octagonal Ring Joint Gasket
Item No:ZD-G1810

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.

StandardANSI B16.5-1973、JPI-75-15-70、GB 699、GB1220、JB755、HG20633-9

NoteThe 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.

 
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