Product Details
The working of ring joint gaskets (RTJ Gasket) can be explained by
the axial compressive load causing them to deform and flow to
irregularities in the flange grooves that it seals. As load bearing
area of ring joint gaskets (RTJ Gasket) are small high surface
stresses are produced between the sealing face and the groove,
making it poor in recovery characteristics and unfit for reuse.
Surface finish of the Style R Ring Type Joint sealing faces
(radiused ends of an Oval and the 23° angled faces of an Octagonal
shape) shall not be greater than 1.6 μm Ra /63 μin RMS. Flexitallic
Style R Ring Type Joints can bemanufactured in accordance with all
relevant standardsto suit the following flange designations:
API 6A
ASME16.20
R Oval & Octagonal gasket ring Can be used for ASME B16.5 flange class 150 to 2500 and
API 6B to Class 5000
»Soft iron and carbon steel gaskets are zinc plated to prevent
corrosion
» All rings are marked with the ring number, material and the
date of manufacture and API designation.
Common Materials |
Material | Brinell Hardness | Temperature Limitations | Identification |
Soft Iron | 90 | -60 to +400 °C | D |
Low carbon steel | 120 | -40 to +500°C | S |
4%-6% Cr ½% Mo:F5 | 130 | -125 to +500°C | F5 |
Stainless steel 304/304L | 160 | -250 to +650°C | S304 or 304L |
Stainless steel 316/316L | 160 | -196 to +800°C | S316 or 316L |
Stainless steel 321 | 160 | -250 to +870°C | S321 |
Stainless steel 347 | 160 | -250 to +870°C | S347 |
Stainless steel 410 | 170 | -20 to +500°C | S410 |
Inconel 625 | – | 1000°C | 625 |
Incoloy 825 | – | 1000°C | 825 |
Hastelloy C-276 | – | 1000°C | C-276 |
Duplex | – | 800°C | S31803 |
Titanium | – | 540°C | TI |
Company Profile
Wenzhou Jingwei Seals Technology Co., Ltd. is a manufacturer and
supplier of threaded products, gaskets & seals, and precision
machined components. Jingwei manufactures Ring Joint Gaskets are
suitable for high pressure and high temperature applications. The
Gaskets are available in R, RX, BX styles and in oval/octagonal
profiles. we manufactures gaskets in accordance with specific
tolerances on CNC machines and the they are fully comply with the
ASME B16.20 standardand the API spec 6A requirements .
We have worked with many different national and international
companies, in a variety of sectors and industries. Our industry
experience ranges from advising on product design and development
on sealing applications, to shipping large product volume to our
customers production lines. Our gaskets and seals have been used
in well known oil & gas industry as well as the industrial,
marine, power generation, and transportation industries.
We know how materials act in different conditions and
environments.We work with our customers to advise on product design
and development. We can provide custom prototypes and samples in
different materials, to help you decide on how best to specify your
product or design.