The pressure and temperature depend on the combination of materials
Chemical resistance:The corrosion resistance depends on the
selected ring material.
Standards and approvals
All RTJ gaskets are manufactured to API standards, guaranteeing
- Oil & gas industry
- Petrochemical industry
- Flange connections
- Pipe connections
RTJ gaskets are available as standard in soft metal and in 304, 316
and stainless steels. Versions in other materials on request.
Style R ring type joints are manufactured on oval (2962/R) and
octagonal profiles (2961/R).
Both styles are interchangeable in the modern flat bottomed groove.
Octagonal profile joints are interchangeable on flat bottomes
groove flanges which have a 23 degree angle groove wall
- Metal-to-metal contact creates a reliable seal
- Suitable for extreme pressure and temperature requirements
- Certified quality (including surface hardness)
we supplies ring joint gaskets (RTJ Gasket) with the hardness
numbers as follows:
BRINELL HARDNESS NUMBER (max)
ROCKWELL HARDNESS NUMBER (max)
|Low carbon steel||120||68||S|
|4-6% Chrome 1/2% molybdenum||130||72||F5|
|304 Stainless Steel||160||83||S304|
|316 Stainless Steel||160||83||S316|
|347 Stainless Steel||160||83||S347|
|Material||HB 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|
We specializes in ring joint gasket, including ring gasket in R,
RX, BX, IX types, lens gasket, weld ring gasket and bonnet
gasket(according to client's drawing). The metal gasket designed
for use in high pressure, high temperature application necessitated
the need for a high integrity seal. Our products are widely used in
flat gate valve, Christmas tree, pipeline fittings, flange, high
pressure vessel, oil &gas industry, wellhead assembly,
petrochemical industry and the like.
We can offer more than 30 kinds of materials, such as 321SS, 347SS,
316SS, 304SS, Inconel 625, Monel 400, INCOLY 825, Nickel 200,
Duplex F44, soft iron, low carbon steel and so on. We could produce
the maximum outside diameter is 2500mm. We have over 10 years
experience in export business. Our products are sold to Southeast
Asia, Middle East, Europe and America and well appreciated by our
Programming interface ring Joint gaskets come in two fundamental
sorts, an oval cross segment and an octagonal cross segment. These
essential shapes are utilized in pressures up to 10,000 Rubber
Seals and Gasket. The measurements are institutionalized and
require uniquely notched spines. The octagonal cross segment has a
higher fixing proficiency than the oval and would be the favored
gasket. Be that as it may, just the oval cross segment can be
utilized in the old sort round base notch. The more up to date
level base furrow configuration will acknowledge either the oval or
the octagonal cross segment. The fixing surfaces on the ring joint
sections must be easily completed to 63 smaller scale inches and to
be liberated from shocking edges, apparatus or babble marks. They
seal by an underlying line contact or an edging activity as the
compressive powers are applied.
Q: Are you trading company or manufacturer ?
A: We are a professional production enterprise
Q: How long is your delivery time?
A: Generally it is 7-15 days for stock delivery, and 15-30 days for
manufacturing goods , but it depands on the quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we can provide you sample, but you need to pay for the
sample and freight firstly.We will return the fee after you make an
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
Q:How can we trust you to make a guaranteed deal?
A:We can trade through alibaba credit guarantee orders, which will
fully guarantee the effective rights and interests of buyers and
A:For inner box and master carton are made as per international
standards,and we can make special designed for you if need.
If you have another question, pls feel free to contact us.