R series gaskets can be manufactured in accordance with all relevant standards to suit the following flange designations: API-6A, ASME/ANSI B16.5, MSS SP44 (ASME B16.47 SERIES A) & BS 1560.
Oval Ring Joing Gasket available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges.
Tolerance: (mm):
Width of Ring --- +/- 0.20;
Height of Ring --- +/- 0.50;
Pitch Diameter --- +/-0.18;
(Octagonal) Angle of 23o --- +/- 0.5o
|
Gasket type |
Gasket cross section |
Ring joint gasket standard |
Flange standard |
|
Oval |
|
ASME B 16.20 API 6A |
ANSI B 16.5ASME B16.47, series A |
|
Octagonal |
|
ASME B 16.20 API 6A |
ANSI B 16.5 ASME B16.47, seriesA |
|
RX |
|
ASME B 16.20 API 6A |
API 6 B |
|
BX |
|
API 6A |
API 6 BX |
Available material
|
Material |
Maximum Hardness (BRINELL) |
T( ° C) |
|
Soft Iron |
90 |
530 |
|
Low Carbon Steel |
120 |
530 |
|
4C6% Chrome 1/2% Mol(F5) |
130 |
500 |
|
304 Stainless Steel |
160 |
750 |
|
316 Stainless Stee |
160 |
750 |
|
321 Stainless Stee |
160 |
750 |
|
347 Stainless Steel |
160 |
750 |
|
410 Stainless Steel |
170 |
500 |
|
31254 Stainless Steel |
160 |
650 |
|
Monel |
140 |
600 |
|
Inconel 825 |
160 |
1000 |
|
Inconel625 |
180 |
1100 |
Wenzhou Yiyu Sealing Material Co., Ltd. is a manufacturer specialized in oilfield, fluid sealing products. Our products including ring joint RTJ gasket, Spiral wound gasket, Reinforced Graphite Gasket, Kammprofile gasket, PTFE gasket, Metal jacketed gaskets, packing, Expanded PTFE Tape etc. Our workshop covers an area of 20, 000 square meters and there are thirty skilled technicians and eight engineers.
For many years, our factory has always been implementing the tenet of "quality first, user first, service first and credit first". We have won the bid successively in major projects both at home and abroad and our products have enjoyed deep trust and a good reputation among users of these projects.
Moreover, our factory has passed the evaluations of ISO9001: 2000 and API 6A and Manufacture License Of Special Equipment Peoples"s Republic Of China.
