Ring Joint Gasket manufacturer in India

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RTJ Gasket and Type R Ring Gaskets manufacturer in India

What is ring joint gasket?
The ring joint gasket is also known as API gasket or RTJ gasket. They are heavy duty gaskets that are used for high pressure applications, especially in large offshore and on-shore petrochemical industries. It is also used in oil-field drilling equipment, pipeworks/valve assemblies, and high-integrity pressure vessel joints.
Depending on the chemical compatibility of the media, it is very important to choose the right gasket material. The hardness of the flange should also be considered. Usually, the gasket material is around 30 brinell less than the flange material, and that ensures gasket deformation without any damages to the flange face.
The ring joint gasket can be described as a metallic ring which is suitable for various high temperature and/or high pressure applications. The ring joint gasket along with the RTJ flange helps to create a strong seal between the mating flanges.
There are three types of ring joint gasket:

  • Style R gasket- These are used for applications having pressure up to 5,000 PSI. There are oval shaped and octagonal shaped gaskets in this category.
  • Style RX gasket- hese are used for applications having pressure up to 50,000 PSI.
  • Style BX gasket- hese are used for applications having pressure up to 20,000 PSI.

What is the difference between a full face gasket and a ring gasket?
The difference between a full face gasket and a ring gasket is that a full face gasket covers the entire flange face whereas a ring gasket inside the securing bolts. A full face gasket has the same outer diameter as that of the flange. It also comes with the necessary cuts that help in securing the bolts. On the other hand, the ring gasket sits around the bore of the pipe, which might include the raised surface if a raised face flange is used. With full face gaskets, there are no chances of dirt getting in between the two bolting surfaces. Whereas, the ring gasket is used universally as the measurement of the inner and the outer of the raised surface are required.

Can you use a ring gasket on a full face flange?
The full face flange gasket can also be used for ring gasket application, but the material present outside the face would not contribute to sealing. However, the positioning becomes easier due to the presence of bolts. But a ring type gasket cannot be used on full face flange applications as that can cause cracks and there are also chances of bending.

How does a BX Type ring joint gaskets seal?
The BX Type ring joint gaskets are bigger than the ring grooves. Thus, when the flanges or the hubs are tightened, the gasket gets slightly compressed to the ring groove so as to seal the pressure.

Can you reuse RTJ gaskets?
Reusing the RTJ gasket is not recommended except for the large grooved metal gasket. They are not to be reused as metallic gaskets basically depend on deforming and coining into the surface of the flange. This helps in effective sealing. The coining deforms yield the gasket, and hence reusing the RTJ gasket will not give you the desired sealing.

Ring Joint Gasket manufacturer in India

Ring Joint Gasket manufacturer in India

Rubber coated Rtj Flange Gasket and R24/ R45/ R39/ R37/ R46 Oval Ring Gasket manufacturer in India

Table of Content


Material CAF,PTFE,Metal,Graphite
Color Natural
Thickness 0.2 to 10 mm
Size 1/2" to 16"
Shape Round
Diameter Provided By Manufacturer 1/2" to 16"
Temperature 250 Deg C

Leading RTJ Gasket importer, dealers, supplier, stockholders, wholesalers, exporters, stockists, distributor and Manufacturer in Mumbai.

Raised face flange gasket

NPS d1 d2
Class
150		 Class
300		 Class
400		 Class
600		 Class
900
1/2 21 48 54 54 54 64
3/4 27 57 67 67 67 70
1 33 67 73 73 73 79
1.1/4 42 76 83 83 83 89
1.1/2 48 86 95 95 95 98
2 60 105 111 111 111 143
2.1/2 73 124 130 130 130.2 165
3 89 137 149 149 149 168
3.1/2 102 162 165 162 162
4 114 175 181 178 194 206
5 141 197 216 213 241 248
6 168 222 251 248 267 289
8 219 279 308 305 321 359
10 273 340 362 359 400 435
12 324 410 422 419 457 498
14 356 451 486 483 492 521
16 406 514 540 537 565 575
18 457 549 597 594 613 638
20 508 606 654 648 683 699
24 610 718 775 768 791 838

RX, BX,R Type Octagonal Rtj Gasket and Bx 155 Ring Gasket manufacturer in Mumbai in Class 150 to 2500

Ring type joint gasket

R no P-Pitch Dia A-Width B-Height Oval Ring
R-11 34.14 6.35 11.2
R-12 39.7 7.95 14.2
R-13 42.88 7.95 14.2
R-14 44.45 7.95 14.2
R-15 47.63 7.95 14.2
R-16 50.8 7.95 14.2
R-17 57.15 7.95 14.2
R-18 60.33 7.95 14.2
R-19 65.1 7.95 14.2
R-20 68.28 7.95 14.2
R-21 72.24 11.13 17.5
R-22 82.55 7.95 14.2
R-23 82.55 11.13 17.5
R-24 95.25 11.13 17.5
R-25 101.6 7.95 14.2
R-26 101.6 11.13 17.5
R-27 107.95 11.13 17.5
R-28 111.13 12.7 19.1
R-29 114.3 7.95 14.2
R-30 117.48 11.13 17.5
R-31 123.83 11.13 17.5
R-32 127 12.7 19.1
R-33 131.78 7.95 14.2
R-34 131.78 11.13 17.5
R-35 136.53 11.13 17.5
R-36 149.23 7.95 14.2
R-37 149.23 11.13 17.5
R-38 157.18 15.88 22.4
R-39 161.93 11.13 17.5
R-40 171.45 7.95 14.2
R-41 180.98 11.13 17.5
R-42 190.5 19.05 25.4
R-43 193.68 7.95 14.2
R-44 193.68 11.13 17.5
R-45 211.15 11.13 17.5
R-46 211.15 12.7 19.1
R-47 228.6 19.05 25.4
R-48 247.65 7.95 14.2
R-49 269.88 11.13 17.5
R-50 269.88 15.88 22.4
R-51 279.4 22.23 28.7
R-52 304.8 7.95 14.2
R-53 323.85 11.13 17.5
R-54 323.85 15.88 22.4
R-55 342.9 28.58 36.6
R-56 381 7.95 14.2
R-57 381 11.13 17.5
R-58 381 22.23 28.7
R-59 396.88 7.95 14.2
R-60 406.4 31.75 39.6
R-61 419.1 11.13 17.5
R-62 419.1 15.88 22.4
R-63 419.1 25.4 33.3
R-64 454.03 7.95 14.2
R-65 469.9 11.13 17.5
R-66 469.9 15.88 22.4
R-67 469.9 28.58 36.6
R-68 517.53 7.95 14.2
R-69 533.4 11.13 17.5
R-70 533.4 19.05 25.4
R-71 533.4 28.58 36.6
R-72 558.8 7.95 14.2
R-73 584.2 12.7 19.1
R-74 584.2 19.05 25.4
R-75 584.2 31.75 39.6
R-76 673.1 7.95 14.2
R-77 692.15 15.88 22.4
R-78 692.15 25.4 33.3
R-79 692.15 34.93 44.5
R-92 228.6 11.13 17.5
Ring Joint Gasket Price Per Piece in India RTJ Gasket Flanges Price in INR Type R Ring Gaskets Price in UAE Dirham Rubber coated Rtj Flange Gasket Price in USD
GASKET RING JOINT BX152 SS 316 Per Unit 346 UAE Dirham 17.10 $4.66
RING JOINT GASKET RX-49 Per Unit 3,074 UAE Dirham 151.91 $41.36
RING JOINT, GASKET -SPARES FOR PUMP Per PCS 12,353 UAE Dirham 610.48 $166.21
RING JOINT GASKET OCTAGONAL TYPE MAT:F51 Per PCS 849 UAE Dirham 41.96 $11.42

We are leading Ring Joint Gasket manufacturer in India, Compare Price list of Type R Ring Gaskets Before Buying. We are leading R Type Octagonal Rtj Gasket Manufacturers.

RTJ flange gasket

R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 11 34.14 6.35 11.2 9.7 4.32 1.5 1/2
300 600
R 12 39.7 7.95 14.2 12.7 5.23 1.5 1/2
900 1500
R 13 42.88 7.95 14.2 12.7 5.23 1.5 3/4
300 600
1/2
2500
R 14 44.45 7.95 14.2 12.7 5.23 1.5 3/4
900 1500
R 15 47.63 7.95 14.2 12.7 5.23 1.5 1
150
R 16 50.8 7.95 14.2 12.7 5.23 1.5 1
300 1500
3/4
2500
R 17 57.15 7.95 14.2 12.7 5.23 1.5 1.1/4
150
R 18 60.33 7.95 14.2 12.7 5.23 1.5 1.1/4
300 1500
1
2500
R 19 65.1 7.95 14.2 12.7 5.23 1.5 1.1/2
150
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 20 68.28 7.95 14.2 12.7 5.23 1.5 1.1/2
300 1500
R 21 72.24 11.13 17.5 16 7.75 1.5 1.1/4
2500
R 22 82.55 7.95 14.2 12.7 5.23 1.5 2
150
R 23 82.55 11.13 17.5 16 7.75 1.5 2
300 600
1.1/2
2500
R 24 95.25 11.13 17.5 16 7.75 1.5 2
900 1500
R 25 101.6 7.95 14.2 12.7 5.23 1.5 2.1/2
150
R 26 101.6 11.13 17.5 16 7.75 1.5 2.1/2
300 600
2
2500
R 27 107.95 11.13 17.5 16 7.75 1.5 2.1/2
900 1500
R 28 111.13 12.7 19.1 17.5 8.66 1.5 2.1/2
2500
R 29 114.3 7.95 14.2 12.7 5.23 1.5 3
150
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 30
*		 117.48 11.13 17.5 16 7.75 1.5 3
300 600
R 31 123.83 11.13 17.5 16 7.75 1.5 3
300 900
R 32 127 12.7 19.1 17.5 8.66 1.5 3
2500
R 33 131.78 7.95 14.2 12.7 5.23 1.5 3.1/2
150
R 34 131.78 11.13 17.5 16 7.75 1.5 3.1/2
300 600
R 35 136.53 11.13 17.5 16 7.75 1.5 3
1500
R 36 149.23 7.95 14.2 12.7 5.23 1.5 4
150
R 37 149.23 11.13 17.5 16 7.75 1.5 4
300 900
R 38 157.18 15.88 22.4 20.6 10.49 1.5 4
2500
R 39 161.93 11.13 17.5 16 7.75 1.5 4
1500
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 40 171.45 7.95 14.2 12.7 5.23 1.5 5
150
R 41 180.98 11.13 17.5 16 7.75 1.5 5
300 900
R 42 190.5 19.05 25.4 23.9 12.32 1.5 5
2500
R 43 193.68 7.95 14.2 12.7 5.23 1.5 6
150
R 44 193.68 11.13 17.5 16 7.75 1.5 5
1500
R 45 211.15 11.13 17.5 16 7.75 1.5 6
300 900
R 46 211.15 12.7 19.1 17.5 8.66 1.5 6
1500
R 47 228.6 19.05 25.4 23.9 12.32 1.5 6
2500
R 48 247.65 7.95 14.2 12.7 5.23 1.5 8
150
R 49 269.88 11.13 17.5 16 7.75 1.5 8
300 900
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 50 269.88 15.88 22.4 20.6 10.49 1.5 8
1500
R 51 279.4 22.23 28.7 26.9 14.81 1.5 8
2500
R 52 304.8 7.95 14.2 12.7 5.23 1.5 10
150
R 53 323.85 11.13 17.5 16 7.75 1.5 10
300 900
R 54 323.85 15.88 22.4 20.6 10.49 1.5 10
1500
R 55 342.9 28.58 36.6 35.1 19.81 2.3 10
2500
R 56 381 7.95 14.2 12.7 5.23 1.5 12
150
R 57 381 11.13 17.5 16 7.75 1.5 12
300 900
R 58 381 22.23 28.7 26.9 14.81 1.5 12
1500
R 59 396.88 7.95 14.2 12.7 5.23 1.5 14
150
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 60 406.4 31.75 39.6 38.1 22.33 2.3 12
2500
R 61 419.1 11.13 17.5 16 7.75 1.5 14
300 600
R 62 419.1 15.88 22.4 20.6 10.49 1.5 14
900
R 63 419.1 25.4 33.3 31.8 17.3 2.3 14
1500
R 64 454.03 7.95 14.2 12.7 5.23 1.5 16
150
R 65 469.9 11.13 17.5 16 7.75 1.5 16
300 600
R 66 469.9 15.88 22.4 20.6 10.49 1.5 16
900
R 67 469.9 28.58 36.6 35.1 19.81 2.3 16
1500
R 68 517.53 7.95 14.2 12.7 5.23 1.5 18
150
R 69 533.4 11.13 17.5 16 7.75 1.5 18
300 600
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
R 70 533.4 19.05 25.4 23.9 12.32 1.5 18
900
R 71 533.4 28.58 36.6 35.1 19.81 2.3 18
1500
R 72 558.8 7.95 14.2 12.7 5.23 1.5 20
150
R 73 584.2 12.7 19.1 17.5 8.66 1.5 20
300 600
R 74 584.2 19.05 25.4 23.9 12.32 1.5 20
900
R 75 584.2 31.75 39.6 38.1 22.33 2.3 20
1500
R 76 673.1 7.95 14.2 12.7 5.23 1.5 24
150
R 77 692.15 15.88 22.4 20.6 10.49 1.5 24
300 600
R 78 692.15 25.4 33.3 31.8 17.3 2.3 24
900
R 79 692.15 34.93 44.5 41.4 24.82 2.3 24
1500
R
No		 Dia
P		 Width
A		 Height Oct
C		 Oct
R1		 NPS
CL
Oval
B		 Oct
H
Exporter of R & RX Series Oval Ring Joint Gasket and Bx 154/ 156/ 169/ 160/ 152/ 159 Ring Gasket suitable for ASME B16.47 series A flanges
GASKET MATERIALS BRINELL HARDNESS NUMBER (max) ROCKWELL B SCALE(max) TEMPERATURE LIMIT

oC

 IDENTIFICATION
Soft iron 90 56 -60 to +400 D
Low carbon steel 120 68 -40 to +500 S
4-6% Chrome 1/2% molybdenum 130 72 -125 to +500 F5
410 Stainless Steel 170 86 -20 to +500 S410
304 Stainless Steel 160 83 -250 to +650 S304
316 Stainless Steel 160 83 -196 to +800 S316
347 Stainless Steel 160 83 -250 to +870 S347
R46 Ring Gasket

R46 Ring Gasket

Ring Joint Flange Gasket

Ring Joint Flange Gasket

Octagonal Gasket Rtj

Octagonal Gasket Rtj

Ring Joint Gasket

Ring Joint Gasket

Rx Ring Gasket

Rx Ring Gasket

Bx 153 Ring Gasket

Bx 153 Ring Gasket

Bx 159 Ring Gasket

Bx 159 Ring Gasket

Bx 151 Ring Gasket

Bx 151 Ring Gasket

Rtj Ring Gasket

Rtj Ring Gasket

R24 Ring Gasket

R24 Ring Gasket

Bx 160 Ring Gasket

Bx 160 Ring Gasket

Bx 156 Ring Gasket

Bx 156 Ring Gasket

R37 Ring Gasket

R37 Ring Gasket

Bx 155 Ring Gasket

Bx 155 Ring Gasket

Ring Gasket Bx 155

Ring Gasket Bx 155

Octagonal Rtj Gasket

Octagonal Rtj Gasket

RTJ Gasket

RTJ Gasket

Oval Ring Joint Gasket

Oval Ring Joint Gasket

Rtj To Rf Conversion Gasket

Rtj To Rf Conversion Gasket

R39 Ring Gasket

R39 Ring Gasket

Type R Ring Gaskets

Type R Ring Gaskets

R45 Ring Gasket

R45 Ring Gasket

Bx152 Ring Gasket

Bx152 Ring Gasket

Bx 154 Ring Gasket

Bx 154 Ring Gasket

Joint Gasket

Joint Gasket

Oval Ring Gasket

Oval Ring Gasket

Rubber Ring Joints

Rubber Ring Joints

BX Type Ring Joint Gaskets

BX Type Ring Joint Gaskets

Api Ring Gasket

Api Ring Gasket

Bx169 Ring Gasket

Bx169 Ring Gasket

Rtj Flange Gasket

Rtj Flange Gasket

Bx Ring Gasket

Bx Ring Gasket

API Ring Joint Gasket

API Ring Joint Gasket

RTJ GASKET MATERIAL RING ID ASTM GRADE DIN GRADE WKSTOFF NUMBER AISI
GRADE		 BS
GRADE		 OTHER SPECS
Soft Iron D 1.1003 / 1.0335 Aramco / StW24
LCS S 1.1003 / 1.0335 Aramco / StW24
CS360 LT CS360LT A516 Gr70
4140 4140 UNS G41400 42CrMo4 1.7225 4140
F5 F5 UNS K42544 12CrMo195 1.7362 5Cr 1/2Mo
SS304 S304 S30400 X5CrNi 18 9 1.4301 304 304S15
SS304L S304L S30403 X2CrNi 18 9 1.4306 304L 304SS12
SS309 S309 S30900 X15CrNiSi2012 1.4828 309 309S24
SS310 S310 S31008 XX15CrNiSi2520 1.4841 310 310S24
SS316 S316 S31600 X5CrNiMo18 10 1.4401 316 316S16
SS316L S316L S31603 X2CrNiMo18 10 1.4404 316L 316S11/316S12
SS316L UREA S316UG S31603 X2CrNiMo 18 14 3 1.4435
SS316Ti S316Ti S31635 X10CrNiMoTi1810 1.4571 316Ti 320S31/320S17
SS321 S321 S32100 X10CrNiTi18 9 1.4541 321 321S12
SS347 S347 S34700 X10CrNiNb 18 9 1.455 347 347S51
SS410 S410 S41000 X10Cr13 1.4006 410 410S21
Monel 400 Monel400 N04400 NiCu30Fe 2.436
Inconel 600 INC600 N06600 NiCr15Fe 2.4816
Inconel 625 INC625 N06625 NiCr22Mo9Nb 2.4856
Inconel 718 INC718 N07718
Incoloy 800 INC800 N08800 X5NiCrAlTi31-20 1.4958
Incoloy 800H INC800H N08810 1.4958
Incoloy 825 INC825 N08825 NiCr21Mo 2.4858
904L 904L N08904 X1NiCrMoCu25-20-5 1.4539
F51 F51 S31803 X2CrNiMoN22-5-3 1.4462 2205 /Duplex
F53 F53 S32750 X2CrNiMoN25-7-4 1.441
F55 F55 S32760 X2CrNiMoCuWN 25 7 4 1.4501 Zeron 100
F60 F60 S32205 Duplex
Titanium Ti R 50400 3.7035
17-4PH 17-4PH S17400 1.4542 630
S254 S254 S31254 X1CrNiMoCuN20-18-7 1.4547 F44 / 6Mo
C276 C276 N10276 NiMo16Cr15W 2.4819 Hastelloy
Alloy 28 Alloy28 N08028 X1 NiCrMoCuN 31 27 4 1.4563 SANICRO 28
Manufacturer of API Ring Joint Gasket and Rubber Ring Joints according to API 6A, ASTM B16.20, and ASME B16.5/B16.20
RING GROOVE SIZE FLANGE SIZE PRESSURE RATING LOW CARBON STEEL PART # 316 SS PART #
BX-150* 1 11/16" 10,000/15,000 RG801150 RG802150
BX-151 1 13/16" 10,000/15,000/20,000 RG801151 RG802151
BX-152 2 1/16" 10,000/15,000/20,000 RG801152 RG802152
BX-153 2 9/16" 10,000/15,000/20,000 RG801153 RG802153
BX-154 3 1/16" 10,000/15,000/20,000 RG801154 RG802154
BX-155 4 1/16" 10,000/15,000/20,000 RG801155 RG802155
BX-156 7 1/16" 10,000/15,000/20,000 RG801156 RG802156
BX-157 9" 10,000/15,000/20,000 RG801157 RG802157
BX-158 11" 10,000/15,000/20,000 RG801158 RG802158
BX-159 13 5/8" 10,000/15,000/20,000 RG801159 RG802159
BX-160 13 5/8" 5,000 RG801160 RG802160
BX-162 16 3/4" 5,000/10,000 RG801162 RG802162
BX-163 18 3/4" 5,000 RG801163 RG802163
BX-164 18 3/4" 10,000/15,000 RG801164 RG802164
BX-165 21 1/4" 5,000 RG801165 RG802165
BX-169** 5 1/8" 10,000 RG801169 RG802169
BX-171 8 9/16" 10,000/15,000 RG801171 RG802171
Flange
NPS		 No of
Bolts		 Bolt
size		 Bolt Stress
(MPa)		 Torque N-m
μ=0.09
Copperslip		 Torque N-m
μ=0.14
Chesterton
Nickel		 Torque N-m
μ=0.225
Unlubricated
½'' 4 ¾ 276 139 203 313
¾'' 4 ¾ 276 139 203 313
1'' 4 ⅞ 276 221 325 502
1¼'' 4 ⅞ 276 221 325 502
1½'' 4 1 276 330 485 748
2'' 8 ⅞ 276 221 325 502
2½'' 8 1 276 330 485 748
3'' 8 ⅞ 310 249 366 565
4'' 8 1 ⅛ 310 539 797 1235
5'' 8 1 ¼ 310 752 1116 1736
6'' 12 1 ⅛ 310 539 797 1235
8'' 12 1 ⅜ 310 1014 1511 2356
12'' 20 1 ⅜ 310 1014 1511 2356
14'' 20 1 ½ 345 1477 2209 3453
16'' 20 1 ⅝ 345 1893 2839 4447
18'' 20 1 ⅞ 345 2951 4444 6984
20'' 20 2 345 3599 5430 8545
24'' 20 2 ½ 310 6410 9728 15369

Advantages

  • Ring type joints are utilised for high pressure sealing up to 20,000 psi.
  • To meet the process application and flange grade, RTJ Gaskets can be manufactured from a range of materials.
  • RTJs are exceptionally dependable and durable seals.

Disadvantages

  • Because of the plastic flow of the ring joint in the flange faces to create the seal, ring-type gaskets are unsuitable for reuse.
  • When compared to other types of gaskets, it is highly pricey.
  • Skilled labour is necessary for successful installation.

Ring joint gaskets are made with a limited amount of positive interference to guarantee that the ring type joint seats appropriately into the groove when compressed. Their re-use is not advised for two reasons:

  • The gasket's initial seating will be hampered.
  • Work hardening of the exterior metal surface happens when the gasket is plastically deformed. This could cause lasting damage to the groove.
Flange
NPS		 No of
Bolts		 Bolt
size		 Bolt Stress
(MPa)		 Torque N-m
μ=0.09
Copperslip		 Torque N-m
μ=0.14
Chesterton
Nickel		 Torque N-m
μ=0.225
Unlubricated
½'' 4 ½ 276 40 59 90
¾'' 4 ½ 276 40 59 90
1'' 4 ½ 276 40 59 90
1¼'' 4 ½ 276 40 59 90
1½'' 4 ½ 276 40 56 90
2'' 4 ⅝ 276 79 116 178
2½'' 4 ⅝ 276 79 116 178
3'' 4 ⅝ 276 79 116 178
4'' 8 ⅝ 276 79 116 178
5'' 8 ¾ 276 139 203 313
6'' 8 ¾ 276 139 203 313
8'' 8 ¾ 276 139 203 313
10'' 12 ⅞ 276 221 325 502
12'' 12 ⅞ 276 221 325 502
14'' 12 1 276 330 485 748
16'' 16 1 276 330 485 748
18'' 16 1 ⅛ 276 479 708 1098
20'' 20 1 ⅛ 276 479 708 1098
24'' 20 1 ¼ 276 668 992 1543
  • P = average pitch diameter of ring ±0.18
  • A = width of ring ±0.20
  • B & H = height of ring +1.3. -0.5
  • Variation in height throughout the entire circumference of any given ring shall not exceed 0.5 within these tolerances
  • C = width of flat on octagonal ring ±0.20
  • R1 = radius in ring ±0.5
  • 23 ° = angle ±0 ° 30 min
  • *R-30 = for lapped joint only

Maximum Hardness of RTJ Gaskets

RTJ Gasket Material

 Brinell HRB ID

Soft Iron-S

 90 56 D

Low Carbon Steel

 120 68 S

4 - 6% Chrome
1/2% Moly

 130 72 F5

SS 304 Stainless Steel

 160 83 S304

SS 316 Stainless Steel

 160 83 S316

SS 347 Stainless Steel

 160 83 S347

SS 410 Stainless Steel

 170 96 S410

The axial compressive load (from bolt tightening) acts on the Ring type joint (RTJ) gasket, causing it to distort and flow into flange groove imperfections. As a result, metal-to-metal contact has established between the gasket and the flange, forming a seal.

The ring-type joints are extremely tight and resistant to temperature and pressure changes. When installing a ring-type joint gasket, pay particular attention to the bolting up to ensure uniform load operating on the gasket. Also, ensure that the RTJ gasket and groove faces are free of flaws and debris.

Material Maximum hardness
HB HRB
Soft lron 90 56
LowCS 120 68
F5 130 72
SS304 160 83
SS304L 160 83
SS309 160 83
SS316 160 83
SS316L 160 83
SS316Ti 160 83
SS321 160 83
SS347 160 83
SS410 140 86
Nickel 200 110 62
Monei 400 150 80
Inconel 600 150 80
Inconel 625 160 83
Inconel 800/800H 180 89
Inconel 825 160 80
Hastelloy C276 190 83
Type 904 160 83
N07718 190 91
F51 230 98
F53 230 98
F55 240 100
  • Oil and gas industry
  • Flange connections
  • Pipe connections
  • Heat exchangers
  • Petrochemical industry
  • Power plant technology

The surface finish of Style R and RX gaskets must be no rougher than 1.6m (63in.) roughness. The surface finish of Style BX gaskets must be no rougher than 0.8m (32in.) roughness.

RTJ GASKET RING NUMBER 720-960 2900# 3000# 5000# OD HEIGHT WIDTH GASKET Wt. ( kg )
RX20 1 ½ - 1 ½ 1 ½ 76.2 19.05 8.74 0.24
RX23 2, 2 1/16 - 93.27 25.4 11.91 0.52
RX24 - - 2, 2 1/16 2, 2 1/16 105.97 25.4 11.91 0.6
RX25 - - - 3 1/8 109.55 19.05 8.74 0.5
RX26 2 ½ , 2 9/16 - - - 111.91 25.4 11.91 0.64
RX27 - - 2 ½, 2 9/16 2 ½, 2 9/16 118.26 25.4 11.91 0.68
RX31 3 , 3 1/8 - 3, 3 1/8 134.54 25.4 11.91 0.78
RX35 - - - 3, 3 1/8 147.24 25.4 11.91 0.86
RX37 4 , 4 1/16 - 4, 4 1/16 - 159.94 25.4 11.91 0.95
RX39 - - - 4, 4 1/16 172.64 25.4 11.91 1.03
RX41 5, 5 1/8 - 5, 5 1/8 - 191.69 25.4 11.91 1.15
RX44 - - - 5, 5 1/8 204.39 25.4 11.91 1.23
RX45 6, 7 1/16 - 6, 7 1/16 - 221.84 25.4 11.91 1.34
RX46 - - - 6, 7 1/16 222.25 28.58 13.49 1.66
RX47 - - - 8 245.26 41.28 19.84 3.88
RX49 8, 9 - 8, 9 280.59 25.4 11.91 1.72
RX50 - - - 8, 9 283.36 31.75 16.66 2.43
RX53 10, 11 - 10, 11 334.57 25.4 11.91 2.06
RX54 - - - 10, 11 337.34 31.75 16.66 2.92
RX57 12, 13 5/8 - 12, 13 5/8 391.72 25.4 11.91 2.42
RX63 - - 14 441.73 50.8 27 11.96
RX65 16, 16 3/4 - - - 480.62 25.4 11.91 3
RX66 - - 16, 16 3/4 - 457.99 31.75 16.66 4.25
RX69 18 - 544.12 25.4 11.91 3.41
RX70 - - 18 - 550.06 41.28 19.84 9.12
RX73 20, 21 1/4 - - - 596.11 31.75 13.49 5.27
RX74 - - 20, 20 3/4 - 600.86 41.28 19.84 10.01
RX82 - 1 - - 67.87 25.4 11.91 0.36
RX84 - 1 ½ - - 74.22 25.4 11.91 0.4
RX85 - 2 - - 90.09 25.4 13.49 0.4
RX86 - 2 ½ - - 103.58 28.58 15.09 0.81
RX87 - 3 - - 113.11 28.58 15.09 0.9
RX88 - 4 - - 139.29 31.75 17.48 1.46
RX89 - 3 ½ - - 129.77 31.75 18.26 3.09
RX90 - 5 - - 174.63 44.45 19.84 7.75
RX91 - 10 - - 286.94 45.24 30.18 1.5
RX99 8 - 8 - 245.67 25.4 11.91 2.2
RX201 - - - 1 3/8 51.46 11.3 5.74 0.1
RX205 - - - 1 13/16 62.31 11.1 5.56 0.13
RX210 - - - 2 9/16 97.64 19.05 9.53 0.35
RX215 - - - 4 1/16 140.89 25.4 11.91 0.8
RTJ GASKET RING NUMBER 2000# 3000# 5000# 10000# 15000# 20000# OUTSIDE DIA HEIGHT
OF THE RING		 WIDTH
OF THE RING		 RTJ GASKET
WEIGHT KG
BX 150 - - - 1 11/16 1 11/16 - 72.19 9.3 9.3 0.13
BX 151 - - - 1 13/16 1 13/16 1 13/16 76.4 9.63 9.63 0.15
BX 152 - - - 2 1/16 2 1/16 2 1/16 84.68 10.24 10.24 0.19
BX 153 - - - 2 9/16 2 9/16 2 9/16 100.94 11.38 11.38 0.29
BX 154 - - - 3 1/16 3 1/16 3 1/16 116.84 12.4 12.4 0.4
BX 155 - - - 4 1/16 4 1/16 4 1/16 147.96 14.22 14.22 0.55
BX 156 - - - 7 1/16 7 1/16 7 1/16 237.92 18.62 18.62 1.87
BX 157 - - - 9 9 9 294.46 20.98 20.98 2.97
BX 158 - - - 11 11 11 352.04 23.14 23.14 4.35
BX 159 - - - 13 5/8 - - 426.72 25.7 25.7 6.53
BX 160 - - 13 5/8 - - - 402.59 23.83 13.74 3.06
BX 161 - - 16 ¾ - - - 491.41 28.07 16.21 5.35
BX 162 - - 16 3/4 16 3/4 16 3/4 - 475.49 14.22 14.22 1.94
BX 163 - - 18 3/4 - - - 556.16 30.1 17.37 6.9
BX 164 - - - 18 3/4 18 3/4 - 570.56 30.1 24.59 5.86
BX 165 - - 21 ¼ - - - 624.71 32.03 18.49 8.76
BX 166 - - - 21 ¼ - - 640.03 32.03 26.14 12.82
BX 167 26 3/4 - - - - - 759.36 35.86 13.11 8.53
BX 168 - 26 3/4 - - - - 765.25 35.86 16.05 10.54
BX 169 - - - 5 1/8 - - 173.51 15.85 12.93 0.73
BX 170 - - - 6 5/8 6 5/8 - 218.03 14.22 14.22 1.03
BX 171 - - - 8 9/16 8 9/16 - 267.44 14.22 14.22 1.24
BX 172 - - - 11 5/32 11 5/32 - 333.07 14.22 14.22 1.56
BX 303 30 30 - - - - 852.75 37.95 16.97 -
NOMINAL PIPE SIZE PRESSURE CLASSES
ASME B16.5 API 6B ASME B16.47 Series A
150# 300# - 600# 900# 1500# 2500# 720# - 960# (1) 2000# 3000# 5000# 10000# 150# 300# - 600# 900#
1/2” - R-11 R-12 R-12 R-13 - - - - - - - -
3/4” - R-13 R-14 R-14 R-16 - - - - - - - -
1” R-15 R-16 R-16 R-16 R-18 R-16 R-16 R-16 R-16 R-82 - - -
1 1/4” R-17 R-18 R-18 R-18 R-21 R-18 R-18 R-18 R-18 - - - -
1 1/2” R-19 R-20 R-20 R-20 R-23 R-20 R-20 R-20 R-20 R-84 - - -
2” R-22 R-23 R-24 R-24 R-26 R-23 R-23 R-23 R-24 R-85 - - -
2 1/2” R-25 R-26 R-27 R-27 R-28 R-26 R-26 R-26 R-27 R-86 - - -
3” R-29 R-31 R-31 R-35 R-32 R-31 R-31 R-31 R-35 R-87 - - -
3 1/2” R-33 R-34 - - - - - - R-37 R-89 - - -
4” R-36 R-37 R-37 R-39 R-38 R-37 R-37 R-37 R-39 R-88 - - -
5” R-40 R-41 R-41 R-44 R-42 R-41 R-41 R-41 R-44 R-90 - - -
6” R-43 R-45 R-45 R-46 R-47 R-45 R-45 R-45 R-46 - - - -
8” R-48 R-49 R-49 R-50 R-51 R-49 R-49 R-49 R-50 - - - -
10” R-52 R-53 R-53 R-54 R-55 R-53 R-53 R-53 R-54 R-91 - - -
12” R-56 R-57 R-57 R-58 R-60 R-57 R-57 R-57 - - - R-57 R-57
14” R-59 R-61 R-62 R-63 - R-61 R-61 R-61 - - - R-61 R-62
16” R-64 R-65 R-66 R-67 - R-65 R-65 R-65 - - - R-65 R-66
18” R-68 R-69 R-70 R-71 - R-69 R-69 R-69 - - - R-69 R-70
20” R-72 R-73 R-74 R-75 - R-73 R-73 R-73 - - - R-73 R-74
22” - - - - - - - - - - R-80 R-81 -
24” R-76 R-77 R-78 R-79 - - - - - - - R-77 R-78
26” - - - - - - - - - - - R-93 R-100
28” - - - - - - - - - - - R-94 R-101
30” - - - - - - - - - - - R-95 R-102
32” - - - - - - - - - - - R-96 R-103
34” - - - - - - - - - - - R-97 R-104
36” - - - - - - - - - - - R-98 R-105

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