Stainless Steel Ring Type Joint Flanges Ring Type Joint (RTJ) flanges are specialized types of flanges used in high-pressure and high-temperature applications, particularly in oil and gas industries, petrochemical plants, and offshore drilling operations. These flanges are designed to provide a strong, leak-proof seal in demanding conditions.
Ring Type Joint flanges provide a robust sealing solution for extreme conditions, ensuring leak-free performance and enhancing the safety and reliability of high-pressure piping systems.
RTJ flanges have grooves cut into their faces where a metallic ring gasket is placed. The sealing surface of the flange features a raised circular ridge or "ring" into which the ring gasket rests. The gasket is compressed between the mating flanges, creating a tight seal when under pressure.
| ASME B16.5 RTJ Flange Size Chart | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
|---|---|
| class 300 rtj flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| ring type joint blind flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 ring type joint weld neck flange |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K ring type joint blind flange |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar class 300 rtj flange |
| ring type joint weld neck flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ring type joint orifice flange |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar class 900 rtj flange |
| Most common types of Ring Type Joint Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Special design |
As per your drawing AS, ANSI, BS, DIN and JIS |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Production technique |
|
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized RTJ Flange |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Manufacturer of |
ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE
etc.
|
| Origin | Indian / West Europe / Japan / USA / Korean |
| class 300 rtj flange Uses & application |
|
| Export to | Indonesia, Ukraine, India, Ireland, Singapore, Saudi Arabia, Spain, Dubai, Peru, Thailand, Korea, Iran, Canada, USA, Brazil, Egypt, Oman, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
|
Nominal Pipe Size |
Pitch Diam. of Ring and Groove |
Widthrong>of Ring |
HEIGHT OF RING |
Widthlat on Octagonal Rings |
Widthroove |
Depth of Groove |
Diameter of Raised Face for Ring Joint or Lapped |
Ring Number |
Approximate Distande Between Flange of Ring Joints When Ring is Compressed |
|
|
OVal |
Octagonal |
|||||||||
|
P |
A |
B |
H |
C |
F |
E(L*) |
K(Min) |
|||
|
1 |
47.6 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
63.5 |
R15 |
4.1 |
|
1 1/4 |
57.2 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
73.2 |
R17 |
4.1 |
|
1 1/2 |
65.1 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
82.6 |
R19 |
4.1 |
|
2 |
82.6 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
101.6 |
R22 |
4.1 |
|
2 1/2 |
101.6 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
120.7 |
R25 |
4.1 |
|
3 |
114.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
133.4 |
R29 |
4.1 |
|
3 1/2 |
131.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
153.9 |
R33 |
4.1 |
|
4 |
149.2 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
171.5 |
R36 |
4.1 |
|
5 |
171.5 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
193.5 |
R40 |
4.1 |
|
6 |
193.7 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
218.9 |
R43 |
4.1 |
|
8 |
247.7 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
273.1 |
R48 |
4.1 |
|
10 |
304.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
330.2 |
R52 |
4.1 |
|
12 |
381.0 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
406.4 |
R56 |
4.1 |
|
14 |
396.9 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
425.5 |
R59 |
3.0 |
|
16 |
454.0 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
482.6 |
R64 |
3.0 |
|
18 |
517.5 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
546.1 |
R68 |
3.0 |
|
20 |
558.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
596.9 |
R72 |
3.0 |
|
24 |
673.1 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
711.2 |
R76 |
3.0 |
|
Nominal Pipe Size |
Pitch Diam. of Ring and Groove |
Widthrong>of Ring |
HEIGHT OF RING |
Widthlat on Octagonal Rings |
Widthroove |
Depth of Groove |
Diameter of Raised Face for Ring Joint or Lapped |
Ring Number |
Approximate Distande Between Flange of Ring Joints When Ring is Compressed |
|||
|
OVal |
Octagonal |
|||||||||||
|
P |
A |
B |
H |
C |
F |
E(L*) |
K(Min) |
Class 300 |
Class 400 |
Class 600 |
||
|
1/2 |
34.1 |
6.4 |
11.1 |
9.5 |
4.3 |
7.1 |
5.6 |
50.8 |
R11 |
3.0 |
– |
3.0 |
|
3/4 |
42.9 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
63.5 |
R13 |
4.1 |
– |
4.1 |
|
1 |
50.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
69.9 |
R16 |
4.1 |
– |
4.1 |
|
1 1/4 |
60.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
79.5 |
R18 |
4.1 |
– |
4.1 |
|
1 1/2 |
68.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
90.4 |
R20 |
4.1 |
– |
4.1 |
|
2 |
82.6 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
108.0 |
R23 |
5.6 |
– |
4.8 |
|
2 1/2 |
101.6 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
127.0 |
R26 |
5.6 |
– |
4.8 |
|
3 |
123.8 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
146.1 |
R31 |
5.6 |
– |
4.8 |
|
3 1/2 |
131.8 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
158.8 |
R34 |
5.6 |
– |
4.8 |
|
4 |
149.2 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
174.8 |
R37 |
5.6 |
5.6 |
4.8 |
|
5 |
181.0 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
209.6 |
R41 |
5.6 |
5.6 |
4.8 |
|
6 |
211.2 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
241.3 |
R45 |
5.6 |
5.6 |
4.8 |
|
8 |
269.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
301.8 |
R49 |
5.6 |
5.6 |
4.8 |
|
10 |
323.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
355.6 |
R53 |
5.6 |
5.6 |
4.8 |
|
12 |
381.0 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
412.8 |
R57 |
5.6 |
5.6 |
4.8 |
|
14 |
419.1 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
457.2 |
R61 |
5.6 |
5.6 |
4.8 |
|
16 |
469.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
508.0 |
R65 |
5.6 |
5.6 |
4.8 |
|
18 |
533.4 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
574.8 |
R69 |
5.6 |
5.6 |
4.8 |
|
20 |
584.2 |
12.7 |
19.1 |
17.5 |
8.7 |
13.5 |
9.5 |
635.0 |
R73 |
5.6 |
5.6 |
4.8 |
|
24 |
692.2 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
749.3 |
R77 |
6.4 |
6.4 |
5.6 |
|
Nominal Pipe Size |
Pitch Diam. of Ring and Groove |
Widthrong>of Ring |
HEIGHT OF RING |
Widthlat on Octagonal Rings |
Widthroove |
Depth of Groove |
Diameter of Raised Face for Ring Joint or Lapped |
Ring Number |
Approximate Distande Between Flange of Ring Joints When Ring is Compressed |
|
|
OVal |
Octagonal |
|||||||||
|
P |
A |
B |
H |
C |
F |
E(L*) |
K(Min) |
|||
|
3 |
123.8 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
155.4 |
R31 |
4.1 |
|
4 |
149.2 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
180.8 |
R37 |
4.1 |
|
5 |
181.0 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
215.9 |
R41 |
4.1 |
|
6 |
211.2 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
241.3 |
R45 |
4.1 |
|
8 |
269.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
307.8 |
R49 |
4.1 |
|
10 |
323.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
362.0 |
R53 |
4.1 |
|
12 |
381.0 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
419.1 |
R57 |
4.1 |
|
14 |
419.1 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
466.9 |
R62 |
4.1 |
|
16 |
469.9 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
523.7 |
R66 |
4.1 |
|
18 |
533.4 |
19.1 |
25.4 |
23.8 |
11.1 |
19.8 |
12.7 |
593.9 |
R70 |
4.8 |
|
20 |
584.2 |
19.1 |
25.4 |
23.8 |
12.3 |
19.8 |
12.7 |
647.7 |
R74 |
4.8 |
|
24 |
692.2 |
25.4 |
33.4 |
31.8 |
17.3 |
27.0 |
15.9 |
771.7 |
R78 |
5.6 |
|
Nominal Pipe Size |
Pitch Diam. of Ring and Groove |
Widthrong>of Ring |
HEIGHT OF RING |
Widthlat on Octagonal Rings |
Widthroove |
Depth of Groove |
Diameter of Raised Face for Ring Joint or Lapped |
Ring Number |
Approximate Distande Between Flange of Ring Joints When Ring is Compressed |
|
|
OVal |
Octagonal |
|||||||||
|
P |
A |
B |
H |
C |
F |
E(L*) |
K(Min) |
|||
|
1/2 |
39.7 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
60.5 |
R12 |
4.1 |
|
3/4 |
44.5 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
66.8 |
R14 |
4.1 |
|
1 |
50.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
71.4 |
R16 |
4.1 |
|
1 1/4 |
60.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
81.0 |
R18 |
4.1 |
|
1 1/2 |
68.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
92.2 |
R20 |
4.1 |
|
2 |
95.3 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
124.0 |
R24 |
3.0 |
|
2 1/2 |
108.0 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
136.7 |
R27 |
3.0 |
|
3 |
136.5 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
168.4 |
R35 |
3.0 |
|
4 |
161.9 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
193.8 |
R39 |
3.0 |
|
5 |
193.7 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
228.6 |
R44 |
3.0 |
|
6 |
211.2 |
12.7 |
19.1 |
17.5 |
8.7 |
13.5 |
9.5 |
247.7 |
R46 |
3.0 |
|
8 |
269.9 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
317.5 |
R50 |
4.1 |
|
10 |
323.9 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
371.6 |
R54 |
4.1 |
|
12 |
381.0 |
22.2 |
28.6 |
27.0 |
14.8 |
23.0 |
14.3 |
438.2 |
R58 |
4.8 |
|
14 |
419.1 |
25.4 |
33.4 |
31.8 |
17.3 |
27.0 |
15.9 |
489.0 |
R64 |
5.6 |
|
16 |
469.9 |
28.6 |
36.5 |
34.9 |
19.8 |
30.2 |
17.5 |
546.1 |
R67 |
7.9 |
|
18 |
533.4 |
28.6 |
36.5 |
34.9 |
19.8 |
30.2 |
17.5 |
612.9 |
R71 |
7.9 |
|
20 |
584.2 |
31.8 |
39.7 |
38.1 |
22.3 |
33.4 |
17.5 |
673.1 |
R75 |
9.7 |
|
24 |
692.2 |
34.9 |
44.5 |
41.3 |
24.8 |
36.5 |
20.6 |
793.8 |
R79 |
11.2 |
|
Nominal Pipe Size |
Pitch Diam. of Ring and Groove |
Widthrong>of Ring |
HEIGHT OF RING |
Widthlat on Octagonal Rings |
Widthroove |
Depth of Groove |
Diameter of Raised Face for Ring Joint or Lapped |
Ring Number |
Approximate Distande Between Flange of Ring Joints When Ring is Compressed |
|
|
OVal |
Octagonal |
|||||||||
|
P |
A |
B |
H |
C |
F |
E(L*) |
K(Min) |
|||
|
1/2 |
42.9 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
65.0 |
R13 |
4.1 |
|
3/4 |
50.8 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
73.2 |
R16 |
4.1 |
|
1 |
60.3 |
8.0 |
14.3 |
12.7 |
5.2 |
8.7 |
6.4 |
82.6 |
R18 |
4.1 |
|
1 1/4 |
72.2 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
101.6 |
R21 |
3.0 |
|
1 1/2 |
82.6 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
114.3 |
R23 |
3.0 |
|
2 |
101.6 |
11.1 |
17.5 |
15.9 |
7.7 |
11.9 |
7.9 |
133.4 |
R26 |
3.0 |
|
2 1/2 |
111.1 |
12.7 |
19.1 |
17.5 |
8.7 |
13.5 |
9.5 |
149.4 |
R28 |
3.0 |
|
3 |
127.0 |
12.7 |
19.1 |
17.5 |
8.7 |
13.5 |
9.5 |
168.4 |
R32 |
3.0 |
|
4 |
157.2 |
15.9 |
22.2 |
20.7 |
10.5 |
16.7 |
11.1 |
203.2 |
R38 |
4.1 |
|
5 |
190.5 |
19.1 |
25.4 |
23.8 |
12.3 |
19.8 |
12.7 |
241.3 |
R42 |
4.1 |
|
6 |
228.6 |
19.1 |
25.4 |
23.8 |
12.3 |
19.8 |
12.7 |
279.4 |
R47 |
4.1 |
|
8 |
279.4 |
22.2 |
28.6 |
27.0 |
14.8 |
23.0 |
14.3 |
339.9 |
R51 |
4.8 |
|
10 |
342.9 |
28.6 |
36.5 |
34.9 |
19.8 |
30.2 |
17.5 |
425.5 |
R55 |
6.4 |
|
12 |
406.4 |
31.8 |
39.7 |
38.1 |
22.3 |
33.4 |
17.5 |
495.3 |
R60 |
7.9 |
| Flanges pressure rating
in
psig for RTJ Ring Type Joint Flange ASME |
|||||||
| Temperature (F°) | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
| -20 to 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
| 200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
| 300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
| 400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
| 500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
| 600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
| 650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
| 700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
| 750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
| 800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
| 850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
| 900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
| 950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
| 1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| Ring Type Joint Flanges (RTJ) | Flat Faced Ring Type Joint Flanges |
| ASME B16.5 RTJ Flanges | ASTM A182 SS Ring Type Joint Flange |
| ASME B16.5 RTJ Flanges | Ring Type Joint Weld Flange |
| Ring Type Joint Raised Face Flanges | ANSI B16.5 Class 150 Ring Type Joint Flanges |
| Stainless Steel Ring Type Joint Flanges | Raised Faced Ring Type Joint Flanges |
| ANSI B16.5 Ring Type Joint Flanges | ASME B16.47 Series A and B RTJ Flanges |
| Ring Type Joint Forged Flanges | ASTM A182 SS Ring Type Joint Flange |
| Ring Type Joint Flange | Alloy Steel Ring Type Joint Plate Flanges |
| Octagonal Ring Type Joint Flange | RTJ Flange Adapter |
| RTJ Flange B16.5 | RTJ Flange Class 1500 |
| Nickel Alloy 200 RTJ Flange | Carbon Steel Ring Type Joint Flange |
| MSS SP-44 Ring Type Joint Flanges | Duplex Steel RTJ Flanges |
| Hastelloy C22 Ring Type Joint Flange | Class 300 Ring Type Joint Flanges |
| Flange RTJ Class 5000 | RTJ End Flange |
| RTJ Flange Finish | RTJ Flange Material |
| RTJ Flange Class 600 | RTJ Flange Class 900 |
| RTJ Reducing Flange | Flange RTJ 900 |
| Hastelloy C22 Ring Type Joint Flange | Alloy 20 Ring Type Joint Flanges |
| Inconel Ring Type Joint Flanges | DIN86029 PN10 Ring Type Joint Flange |
| Copper Nickel RTJ Flanges | Alloy 20 Ring Type Joint Flanges |
| SS RTJ Flange | Stainless Steel RTJ Flanges |
| Ring Type Joint Flange | Asme Ring Type Joint Flange |
