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Metal Ring-Joint Gasket
Metal Ring Joint Gasket is a high integrity seal and predominantly used in high pressure / temperature oilfield applications and for petrochemical industry, such as valves, piping assemblies, and pressure vessels. Various materials and profiles are available for most-demanded design and operation conditions and conform to API 6A (oilfield use) and ASME B16.20 (general use) standards to fit ASME, BS and DIN flanges. Steel Oval and Octagonal ring joints are in stock and can be interchangeable on the modern flat bottom groove. We could deliver in the short period. Note: the hardness of metal ring joint gasket should lower 15~20 HB than the hardness of applied flange, as the material may harden to damage the flange and affect sealing properties, we DO not recommend to re-use the gasket.
Files
Desctipt
Metal Ring Joint Gasket is a high integrity seal and predominantly used in high pressure / temperature oilfield applications and for petrochemical industry, such as valves, piping assemblies, and pressure vessels. Various materials and profiles are available for most-demanded design and operation conditions and conform to API 6A (oilfield use) and ASME B16.20 (general use) standards to fit ASME, BS and DIN flanges. Steel Oval and Octagonal ring joints are in stock and can be interchangeable on the modern flat bottom groove. We could deliver in the short period.
 
Note: the hardness of metal ring joint gasket should lower 15~20 HB than the hardness of applied flange, as the material may harden to damage the flange and affect sealing properties, we DO not recommend to re-use the gasket.

●Style
Style & Profile Style No.
Oval ZW#5500-OV
Octagonal ZW#5500-OT
RX (High Pressure) ZW#5500-RX
BX (High Pressure) ZW#5500-BX
Delta ZW#5500-DT
Lens ZW#5500-LN

●Order Code

ZW#5500-OV-E means Oval Style 304SS metal ring joint gasket

Style
OV Oval
OT Octagonal
RX RX High Pressure
BX BX High Pressure
DT Delta
LN Lens

Materials
D Soft Iron M Monel 400
S Low Carbon Steel F 5Cr-0.5Mo
E 304SS N Nickel 200
L 304LSS Y Inconel 600/625
G 316SS Y1 Inconel X750
H 316LSS W Incoloy 800(H)/825
O 310SS T Titanium
P 316Ti SS X1 Hastelloy B2/B3
J 321SS X2 Hastelloy C276
K 347SS X3 Hastelloy C22
R 410SS A Aluminum
U 430SS C Copper
V 904L F11 1.25Cr-0.5Mo

● Material Properties
Material Code Max. Hardness Working Temperature(°C)
Category Description Brinell
BHN/HB
Rockwell B
HRB
Min. Max.
General Grade Carbon steel Low Carbon Steel S 120 68 -40 540
Soft Iron D 90 56 -40 500
5Cr-0.5Mo F 130 72 -29 650

Stainless steel
304SS E 160 83 -250 540
304LSS L 160 83 -250 540
316SS G 160 83 -200 815
316LSS H 160 83 -200 815
410SS R 170 86 -40 850
Non-ferrous metal Copper C 81 41 -100 315
Aluminum A 35 - -200 425
Special
Grade
Stainless steel 321SS J 160 83 -200 870
347SS K 160 83 -200 870
Inconel 600/625 Y 150 78 -100 1095
Incoloy 800(H)/825 W 150 78 -100 1095
Non-ferrous metal Monel 400 M 160 83 -100 760
Titanium T 160 83 -200 540
Nickel 200 N 120 68 -200 760
Hastelloy B2/B3 X1 230 98 -100 1095
Hastelloy C276/C22 X2/X3 210 96 -100 1095
※It is recommended that the Ring Joint Gaskets to be of a lesser hardness than that of the mating flanges.
※Ring joint gaskets of materials listed shall have a hardness equal to or less than that shown as above.

  Tolerance mm inch
  A , C (Width)  ± 0.20  ± 0.008
 B , H (Height)  +1.3 / -0.5  +0.05/-0.020
    P (Average pitch diameter of ring)  ± 0.18  ± 0.007
   23 deg (Angle)  ± 0 deg 30 min.
R1 (Radius in ring)  ± 0.5  ± 0.02
  ZEN WANG Co., Ltd.
‧Add:No. 20, Heye 2nd Rd., Daliao Dist.,
Kaohsiung City, Taiwan, R.O.C. Post Code: 83160.
‧Email:zenwang888@zenwang.com.tw │ Skype: zen_wang888@hotmail.com