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Medical Grade Seals

When looking at your options for gaskets and seals, you’ll see that some products are marked as medical grade. These seals offer a range of extra benefits and features when compared to your typical seals, and they are required for many different types of processes....

O Ring Face Seals

While you may be familiar with O-rings, these come in various types, which offer benefits to a range of manufacturing applications. Sometimes called a toric joint, O-rings work to seal the area between two different joined parts. This means that even when working at...

Straight Thread Tube Fitting O-Rings

When looking at the types of O-rings on offer for your manufacturing processes, you might be wondering which would be the best solution for your unique needs. Today we’re going to take a deeper look into what straight thread tube fitting O-rings are and how we can...

Can You Use Corrugated Gaskets Instead of Spiral Wound Gaskets?

If you’ve always relied on spiral wound gaskets in the past, you might be wondering if there is an alternative option on offer. Corrugated gaskets offer many benefits over spiral wound gaskets, which is why so many companies are opting to switch between these two...

What is a Wiper Seal?

An important component that’s often overlooked by businesses and manufacturers is the wiper seal. If you are wondering what a wiper seal is, today we’re going to discover why you need to use them and how they can support your work. Go to the homepage for more...

How to Choose the Right Seal for Electric Motors

When choosing a seal for your electric motors, there are many options on the market. Finding the right electric motor shaft seal is critical to ensure your customers are happy and that your vehicles fit their needs. Keep reading to discover how to choose the right...

Why Should You Invest in Quality Seals?

While industrial seals might seem like something you could save a little money on, this is one part that we don’t recommend cutting costs on. A quality seal will offer many benefits to your business and operations, so it’s worth taking the time to find a solution...

All you need to know about Neoprene O rings

Popular in the refrigeration industry, neoprene o rings are also growing in popularity across a wide range of other sectors due to their incredible resistance to hazardous materials. Also known as chloroquine o rings, these o rings provide excellent resistance to...

Why all sealants are not the same

It's important to understand just how critical it is to use the correct type of sealant. It's especially the case when working with heavy machinery or any industrial situation. You don't want to have to worry about whether your sealing products are working correctly...

How to understand O-rings and their design

O-Rings are a critical component for the proper sealing of specific pipes. They have to sit within a specified groove, which can vary based on the hardware used. That's why it's important to note the various types of o-ring groove design to understand better what kind...

Quality Ring Type Joints (RTJs)

Ring Type Joint (RTJ) Gaskets are precision machined, from a wide range of materials, determined by service conditions, and are suitable for high temperature and high pressure applications. 

General Market Sector Industry’s  include; 

Oil and Gas, Petrochemical, Petroleum Oil Field Drilling Equipment and Offshore Sub-Sea applications 

They come in a variety of shapes and sizes and are labelled as ‘Styles’.  Type R  – Oval, Type R – Octagonal, Type RX and Type BX complete the standard range of ‘Styles’ and are manufactured in accordance to API 6A, API 17D, ASME B16.20 or to customer specific requirements 

Quality Ring Type Joints (RTJs)

STYLE R

These are manufactured in accordance with API  6A for heavy duty use in the Petroleum industry  particularly in oil field drilling equipment. Both types are interchangeable on octagonal type grooved flanges 

Ring Type Joints Style R Oval
Ring Type Joints Style R Octagonal
RX Ring Type Joint Drawing

STYLE RX

Suitable for ASME B16.5 Flanges up to 2500 LBS and API 6A type 6B Flanges can withstand pressures up to 5,000 psi. The RX Style is based upon the standard Style R, and will fit the same groove, but becomes energised when the assembly is pressurised thus improving the efficiency of the seal. 

STYLE BX 

BX Gaskets are manufactured in accordance with ASME B16.20, API 6A and API  17D, a variant specifically for subsea applications. They are machined in a symmetrical shape ensuring flange face to face contact on both the inner and outer diameters and incorporate a pressure hole to give energized sealing up to 20,000 psi.

BX Ring Type Joint Drawing
Ring Type Joint

The gasket material should be selected and determined to suit the service conditions. It is always recommended that the gasket material should be approximately 30 Brinell softer than the mating flange material to ensure sufficient deformation of the gasket, thus providing subsequent sealing force. 

The more common materials used are as stated in the table below  

Material Reference Table
MATERIAL IDENTIFICATION MAXIMUM HARDNESS (BHN)
Soft Iron D 90
Low Carbon Steel S 120
F5 (4-6% Chrome – 1/2% Moly) F5 130
SS 304 S304 160
SS 316 S316 160
SS 321 S321 160
SS 347 S347 160
SS 410 S410 170
Alloy 600 N06600 200
Alloy 625 N06625 200
Alloy 800 N08800 200
Alloy 825 N08825 200
Hastelloy C-276 N10276 200
Duplex 31254 S31254 180
Duplex 31803 S31803 250
Monel 400 N04400 200
Titanium R50400 215
Type R Oval and Octagonal Ring Type Joint Gasket Dimensions In Accordance to ASME B16.20 / API 6A
ASME B16.5 FLANGES / ASME B16.20 API 6B FLANGES / API 6A (psi) PCD WIDTH RING HEIGHT
Ring No. 150 3/600 900 1500 2500 2000 3000 5000 (mm) (mm) OVAL (mm) OCT (mm)
R11 ½” 34.14 6.35 11.2 9.7
R12 ½” ½” 39.7 7.95 14.2 12.7
R13 ¾” ½” 42.88 7.95 14.2 12.7
R14 ¾” ¾” 44.45 7.95 14.2 12.7
R15 1” 47.63 7.95 14.2 12.7
R16 1” 1” 1” 34” 1” 1” 1” 50.8 7.95 14.2 12.7
R17 1.1/4” 57.15 7.95 14.2 12.7
R18 1.1/4” 1.1/4” 1.1/4” 1” 1.1/4” 1.1/4” 1.1/4” 60.33 7.95 14.2 12.7
R19 1.1/2” 65.1 7.95 14.2 12.7
R20 1.1/2” 1.1/2” 1.1/2” 1.1/2” 1.1/2” 68.28 7.95 14.2 12.7
R21 1.1/4” 72.24 11.13 17.5 16
R22 2” 82.55 7.95 14.2 12.7
R23 2” 1.1/2” 2.1/16” 82.55 11.13 17.5 16
R24 2” 2” 2.1/16” 2.1/16” 95.25 11.13 17.5 16
R25 2.1/2” 101.6 7.95 14.2 12.7
R26 2.1/2” 2” 2.9/16” 101.6 11.13 17.5 16
R27 2.1/2” 2.1/2” 2.9/16” 2.9/16” 107.95 11.13 17.5 16
R28 2.1//2” 111.13 12.7 19.1 17.5
R29 3” 114.3 7.95 14.2 12.7
R30 3” 117.48 11.13 17.5 16
R31 3” 3” 3.1/8” 3.1/8” 123.83 11.13 17.5 16
R32 3” 127 12.7 19.1 17.5
R33 3.1/2” 131.78 7.95 14.2 12.7
R34 3.1/2” 131.78 11.13 17.5 16
R35 3” 3.1/8” 136.53 11.13 17.5 16
R36 4” 149.23 7.95 14.2 12.7
R37 4” 4” 4.1/16” 4.1/16” 3.1/2” 149.23 11.13 17.5 16
R38 4” 157.18 15.88 22.4 20.6
R39 4” 4.1/16” 161.93 11.13 17.5 16
R40 5” 171.45 7.95 14.2 12.7
R41 5” 5” 5.1/8” 5.1/8” 180.98 11.13 17.5 16
R42 5” 190.5 19.05 25.4 23.9
R43 6” 193.68 7.95 14.3 12.7
R44 5” 5.1/8” 193.68 11.13 17.5 16
R45 6” 6” 7.1/16” 7.1/16” 211.15 11.13 17.5 16
R46 6” 7.1/16” 211.15 12.7 19.05 17.5
R47 6” 228.6 19.05 25.4 23.9
R48 8” 247.65 7.95 14.3 12.7
R49 8” 8” 9” 9” 269.88 11.13 17.5 16
R50 8” 9” 269.88 15.88 22.22 20.6
R51 8” 279.4 22.23 28.6 26.9
R52 10” 304.8 7.95 14.3 12.7
R53 10” 10” 11” 11” 323.85 11.13 17.5 16
R54 10” 11” 323.85 15.88 22.22 20.6
R55 10” 342.9 28.58 36.51 35.1
R56 12” 381 7.95 14.3 12.7
R57 12” 12” 13.5/8” 13.5/8” 381 11.13 17.5 16
R58 12” 381 22.23 28.6 26.9
R59 14” 396.88 7.95 14.5 12.7
R60 12” 406.4 31.75 39.7 38.1
R61 14” 14” 14” 419.1 11.13 17.5 16
R62 14” 419.1 15.88 22.22 20.6
R63 14” 419.1 25.4 33.33 31.8
R64 16” 454.03 7.95 14.2 12.7
R65 16” 16.3/4” 16.3/4” 469.9 11.13 17.5 16
R66 16” 469.9 15.88 22.4 20.6
R67 16” 469.90 28.58 36.60 35.10
R68 18” 517.53 7.95 14.20 12.70
R69 18” 18” 533.40 11.13. 17.50 16.00
R70 18” 18” 533.40 19.05 25.40 23.90
R71 18” 533.40 28.58 36.60 35.10
R72 20” 558.80 7.95 14.20 12.70
R73 20” 20.3/4” 584.20 12.70 19.10 17.50
R74 20” 20.3/4” 584.20 19.05 25.40 23.90
R75 20” 584.20 31.75 39.60 38.10
R76 24” 673.10 7.95 14.2 12.7
R77 24” 692.15 15.88 22.4 20.6
R78 24” 692.15 25.40 33.30 31.80
R79 24” 692.15 34.93 44.50 41.40
R80 22” 615.95 7.95 14.29 12.70
R81 22” 635.00 14.30 20.64 19.10
R93 26” 749.30 19.05 25.40 23.90
R94 28” 800.10 19.05 25.40 23.90
R95 30” 857.25 19.05 25.40 23.90
R96 32” 914.40 22.23 28.58 26.90
R97 34” 965.20 22.23 28.58 26.90
R98 36” 1022.35 22.23 28.58 26.90
R99 8” 8” 234.95 11.13 17.46 16.00
R100 26” 749.30 28.58 36.51 35.10
R101 28” 800.10 31.75 39.68 38.10
R102 30” 857.25 31.75 39.68 38.10
R103 32” 914.40 31.75 39.68 38.10
R104 34” 965.20 34.93 44.45 41.40
R105 36” 1022.35 34.93 44.45 41.40
RX Ring Type Joint Gasket Dimensions In accordance to ASME B16.20 / API 6A
API 6B FLANGES / API 6A (psi) OD HEIGHT WIDTH
RING NO 2000 3000 5000 (mm) (mm) (mm)
RX20 1.1/2” 1.1/2” 1.1/2” 76.20 19.05 8.40
RX23 2” 93.27 25.40 11.91
RX24 2” 2” 105.97 25.40 11.91
RX25 3.1/8” 109.55 19.05 8.74
RX26 2.1/2” 111.91 25.40 11.91
RX27 2.1/2” 2.1/2” 118.26 25.40 11.91
RX31 3” 3” 134.54 25.40 11.91
RX35 3” 147.24 25.40 11.91
RX37 4” 4” 159.94 25.40 11.91
RX39 4” 172.64 25.40 11.91
RX41 5” 5” 191.69 25.40 11.91
RX44 5” 204.39 25.40 11.91
RX45 6” 6” 221.84 25.40 11.91
RX46 6” 222.25 28.58 13.49
RX47 8” 246.26 41.28 19.84
RX49 8” 8” 280.59 25.40 11.91
RX50 8” 293.36 31.75 16.66
RX53 10” 10” 334.57 25.40 11.91
RX54 10” 337.34 31.75 16.66
RX57 12” 12” 391.72 25.40 11.91
RX63 14” 441.73 50.80 27.00
RX65 16” 480.62 25.40 11.91
RX66 16” 457.99 31.75 16.66
RX69 18” 544.12 25.40 11.91
RX70 18” 550.06 41.28 19.84
RX73 20” 596.11 31.75 13.49
RX74 20” 600.86 41.28 19.84
RX99 8” 8” 245.67 25.40 11.91
RX201 1.3/8” 51.46 11.30 5.74
RX205 1.13/16” 62.31 11.10 5.56
RX210 2.9/16” 97.64 19.05 9.53
RX215 4.1/16” 140.89 25.40 11.91
BX Ring Type Joint Gasket Dimensions In accordance to ASME B16.20 / API 6A
API 6B FLANGES / API 6A (psi) OD HEIGHT WIDTH HOLE SIZE
RING NO 2000 3000 5000 10000 15000 20000 (mm) (mm) (mm) (mm)
BX150 1.11/16” 1.11/16” 72.19 9.30 9.30 1.5
BX151 1.13/16” 1.13/16” 1.13/16” 76.40 9.63 9.63 1.5
BX152 2.1/16” 2.1/16” 2.1/16” 84.68 10.24 10.24 1.5
BX153 2.9/16” 2.9/16” 2.9/16” 100.94 11.38 11.38 1.5
BX154 3.1/16” 3.1/16” 3.1/16” 116.84 12.40 12.40 1.5
BX155 4.1/16” 4.1/16” 4.1/16” 147.96 14.22 14.22 1.5
BX156 7.1/16” 7.1/16” 7.1/16” 237.92 18.62 18.62 3.0
BX157 9” 9” 9” 294.46 20.98 20.98 3.0
BX158 11” 11” 11” 352.04 23.14 23.14 3.0
BX159 13.5/8” 13.5/8” 13.5/8” 426.72 25.70 25.70 3.0
BX160 13.5/8” 402.59 23.83 13.74 3.0
BX161 16.3/4” 491.41 28.07 16.21 3.0
BX162 16.3/4” 16.3/4” 475.49 14.22 14.22 1.5
BX163 18.3/4” 556.16 30.10 17.37 3.0
BX164 18.3/4” 18.3/4” 570.56 30.10 24.59 3.0
BX165 21.1/4” 624.71 32.03 18.49 3.0
BX166 21.1/4” 640.03 32.03 26.14 3.0
BX167 26.3/4” 759.36 35.86 13.11 1.5
BX168 26.3/4” 765.25 35.86 16.05 1.5
BX169 5.1/8” 173.51 15.85 12.93 1.5
BX170 6.5/8” 6.5/8” 218.03 14.22 14.22 1.5
BX171 8.9/16” 8.9/16” 267.44 14.22 14.22 1.5
BX172 11.5/32” 11.5/32” 333.07 14.22 14.22 1.5
BX303 30” 30” 852.75 37.95 16.97 1.5
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