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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...

The importance of gasket thickness

Choosing the right gasket material for specific applications is vital. However, gasket thickness is also a feature that must not be overlooked in the decision-making process. Choosing the right gasket thickness can help when you’re experiencing challenges with...

How Temperature Impacts Gasket Performance

When using a spiral wound gasket, there are many things you need to keep in mind. The most common issue we hear people discuss regarding gasket performance issues at high temperatures. If you are using a gasket for the first time at a new temperature and notice it...

How Thick Should Gasket Paper Be?

When creating gaskets, one of the most common questions we receive is regarding gasket paper thickness. You’ll find there are various options on the market, which come in different sizes and thicknesses. Today we’re going to discover what gasket paper is and how you...

O-Rings for the Beer Industry

O-rings offer a wide range of applications, and many people aren’t aware of just how versatile an o-ring can be. When working with o-ring suppliers in the UK, you’ll soon find out that we supply these to a range of businesses, including to breweries. Today we’re going...

Gasket Safety

Gaskets and seals are vital components for applications requiring a solid seal, helping prevent leaks and stop gases and other chemicals from escaping.  However, over time, and due to the fluctuating temperatures, compression sets, and exposure to chemicals, seals do...

Is fluorosilicone rubber o rings a sustainable choice?

Fluorosilicone rubber, also known as FVQM or MFQ, contains 23-28% fluorine and has nearly the same physical and mechanical properties as standard silicone rubber as matches on par with their flexibility at low temperatures.  However, due to its fluorine...

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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