Octagonal Ring Joint Gasket

Octagonal Ring Joint Gasket

Ring type joint was initially developed for high pressure and temperature applications found in the petroleum industry and is primarily used in the oil field on drilling and completion equipments

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Product Details

Octagonal metal ring gasket installed inside a ladder type ring groove on the surface of the flange, when screw down the connecting bolt, the axial compression and up and down the ladder type slot 1, produce plastic deformation, forming a ring seal belt, establish the initial seal.After booster, under the action of medium pressure, make the ring gasket radial expansion.Gasket with trapezoidal groove cant post more tightly, self-tightening effect.Medium pressure increases, however, also can make the flange and the connecting bolt deformation, caused by a relative separation between the sealing surface, gasket seal than relative decline, thus, ring gasket can be thought of as a half since the tight closure.


Octagonal metal ring gasket mainly match with flange groove is surface contact, compared with the oval ring gasket though with flange groove or not easily, but it can be used again, and because of the cross section is made up of straight line easy processing.At the same time choose octagonal metal ring gasket material should be lower than the flange surface hardness 15 ~ 20 hb.

Note: When octagonal type is chosen, the material hardness of the pad should be 15~20HB lower than that of the flange face. It is recommended the pad

is not recycled.

Applicable standards:
ANSI B16.5-1973 、 JPI-75-15-70 、 GB 699 、 GB1220 、 JB755 、 HG20633-97


Metal ring gasket main structural forms:

OVAL AND OCTAGONAL Ring gasket.jpg


Main materials parameters:

Material

Maximum hardness BRINELL

Temperature( ℃ )

Abbreviations
marker

Brucellosis

Rockwell

Soft Iron

90

56

-60 500

D

Low Carbon Steel

120

68

-40~540

S

304SS

160

83

-250 540

304

304LSS

160

83

-250 540

304L

316SS

160

83

-200 815

316

316LSS

160

83

-200 815

316

321SS

160

83

-200 870

321

347SS

160

83

-200 870

347

410SS

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



Why Choose US

1. Professional

We provide OEM, ODM of Ring joint gaskets for our customers worldwide, highly praised by our customers


2. High quality guarantee.

We strictly carry out ISO quality management system for all production process and raw material incoming.


3. High Quality Material Quarantee

All of our products are high quality material according ASTM


4.After service

24 Hours x 7 days after service


5. Factory Price with Small MOQ
We promise factory low price with small MOQ.


6.Timely Delivery

For prototype tooling sample lead time 3~7 days

For production tooling lead time 10-15 days

For order 7-15 days according to quantity

With professional octagonal ring joint gasket factory, KAXITE is one of the leading China Ring Joint Gaskets manufacturers and suppliers.

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