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:
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
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.
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 |
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.
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 |
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
Ring Joint Flange Gasket
Octagonal Gasket Rtj
Ring Joint Gasket
Rx Ring Gasket
Bx 153 Ring Gasket
Bx 159 Ring Gasket
Bx 151 Ring Gasket
Rtj Ring Gasket
R24 Ring Gasket
Bx 160 Ring Gasket
Bx 156 Ring Gasket
R37 Ring Gasket
Bx 155 Ring Gasket
Ring Gasket Bx 155
Octagonal Rtj Gasket
RTJ Gasket
Oval Ring Joint Gasket
Rtj To Rf Conversion Gasket
R39 Ring Gasket
Type R Ring Gaskets
R45 Ring Gasket
Bx152 Ring Gasket
Bx 154 Ring Gasket
Joint Gasket
Oval Ring Gasket
Rubber Ring Joints
BX Type Ring Joint Gaskets
Api Ring Gasket
Bx169 Ring Gasket
Rtj Flange Gasket
Bx Ring 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 |
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
Disadvantages
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:
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 |
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 |
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 |
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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