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We manufacture Flange by Pressure Class in India for export all around the world.
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Flange by Pressure Class
Flanges are normally manufactured in seven basic ratings according to ASME B16.5: 150 Lb, 300 Lb, 400 Lb, 600 Lb, 900 Lb, 1500 Lb and 2500 Lb, we can manufacture all pressure class flanges as per customer drawing in ASTM / ASME / ANSI / JIS standards.
The number and diameters (mm) of the bolt holes are:
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Materials: Stainless Steel, Carbon Steel, High Nickel Alloys.read more
Piping Class Ratings based on ASME B16.5 and corresponding PN rating: -
Flange Class
150
300
400
600
900
1500
2500
Flange Pressure Nominal, PN
20
50
68
100
150
250
420
Pressure-Temperature Ratings for ASTM Group 2-1.1 Materials
Temp.°C 150
300
400
600
900
1500
2500
-29 to 38
19.6
51.1
68.1
102.1
153.2
255.3
425.5
50
19.2
50.1
66.8
100.2
150.4
250.6
417.7
100
17.7
46.6
62.1
93.2
139.8
233
388.3
150
15.8
45.1
60.1
90.2
135.2
225.4
375.6
200
13.8
43.8
58.4
87.6
131.4
219
365
250
12.1
41.9
55.9
83.9
125.8
209.7
349.5
300
10.2
39.8
53.1
79.6
119.5
199.1
331.8
325
9.3
38.7
51.6
77.4
116.1
193.6
322.6
350
8.4
37.6
50.1
75.1
112.7
187.8
313
375
7.4
36.4
48.5
72.7
109.1
181.8
303.1
400
6.5
34.7
46.3
69.4
104.2
173.6
289.3
425
5.5
28.8
38.4
57.5
86.3
143.8
239.7
450
4.6
23
30.7
46
69
115
191.7
475
3.7
17.4
23.2
34.9
52.3
87.2
145.3
500
2.8
11.8
15.7
23.5
35.3
58.8
97.9
538
1.4
5.9
7.9
11.8
17.7
29.5
49.2
Pressure-Temperature Ratings for ASTM Group 2-2.3 Materials
Temp.°C 150
300
400
600
900
1500
2500
-29 to 38
15.9
41.4
55.2
82.7
124.1
206.8
344.7
50
15.3
40
53.4
80
120.1
200.1
333.5
100
13.3
34.8
46.4
69.6
104.4
173.9
289.9
150
12
31.4
41.9
62.8
94.2
157
261.6
200
11.2
29.2
38.9
58.3
87.5
145.8
243
250
10.5
27.5
36.6
54.9
82.4
137.3
228.9
300
10
26.1
34.8
52.1
78.2
130.3
217.2
325
9.3
25.5
34
51
76.4
127.4
212.3
350
8.4
25.1
33.4
50.1
75.2
125.4
208.9
375
7.4
24.8
33
49.5
74.3
123.8
206.3
400
6.5
24.3
32.4
48.6
72.9
121.5
202.5
425
5.5
23.9
31.8
47.7
71.6
119.3
198.8
450
4.6
23.4
31.2
46.8
70.2
117.1
195.1
SS 304 Welding Neck Flange SS 304 Slip On Flange SS 304 Socket Weld Flange SS 304 Lap Joint Flange SS 304 Threaded Flange SS 304 Blind Flange SS 304 Spectacle Blinds SS 304 Spades and Ring Spacers SS 304 Square Flange SS 304L Welding Neck Flange SS 304L Slip On Flange SS 304L Socket Weld Flange SS 304L Lap Joint Flange SS 304L Threaded Flange SS 304L Blind Flange SS 304L Spectacle Blinds SS 304L Spades and Ring Spacers SS 304L Square Flange SS 310 Welding Neck Flange SS 310 Slip On Flange SS 310 Socket Weld Flange SS 310 Lap Joint Flange SS 310 Threaded Flange SS 310 Blind Flange SS 310 Spectacle Blinds SS 310 Spades and Ring Spacers SS 310 Square Flange SS 310S Welding Neck Flange SS 310S Slip On Flange SS 310S Socket Weld Flange SS 310S Lap Joint Flange SS 310S Threaded Flange SS 310S Blind Flange SS 310S Spectacle Blinds SS 310S Spades and Ring Spacers SS 310S Square Flange SS 316 Welding Neck Flange SS 316 Slip On Flange SS 316 Socket Weld Flange SS 316 Lap Joint Flange SS 316 Threaded Flange SS 316 Blind Flange SS 316 Spectacle Blinds SS 316 Spades and Ring Spacers SS 316 Square Flange SS 316L Welding Neck Flange SS 316L Slip On Flange SS 316L Socket Weld Flange SS 316L Lap Joint Flange SS 316L Threaded Flange SS 316L Blind Flange SS 316L Spectacle Blinds SS 316L Spades and Ring Spacers SS 316L Square Flange SS 317 Welding Neck Flange SS 317 Slip On Flange SS 317 Socket Weld Flange SS 317 Lap Joint Flange SS 317 Threaded Flange SS 317 Blind Flange SS 317 Spectacle Blinds SS 317 Spades and Ring Spacers SS 317 Square Flange SS 317L Welding Neck Flange SS 317L Slip On Flange SS 317L Socket Weld Flange SS 317L Lap Joint Flange SS 317L Threaded Flange SS 317L Blind Flange SS 317L Spectacle Blinds SS 317L Spades and Ring Spacers SS 317L Square Flange SS 321 Welding Neck Flange SS 321 Slip On Flange SS 321 Socket Weld Flange SS 321 Lap Joint Flange SS 321 Threaded Flange SS 321 Blind Flange SS 321 Spectacle Blinds SS 321 Spades and Ring Spacers SS 321 Square Flange SS 321H Welding Neck Flange SS 321H Slip On Flange SS 321H Socket Weld Flange SS 321H Lap Joint Flange SS 321H Threaded Flange SS 321H Blind Flange SS 321H Spectacle Blinds SS 321H Spades and Ring Spacers SS 321H Square Flange SS 347 Welding Neck Flange SS 347 Slip On Flange SS 347 Socket Weld Flange SS 347 Lap Joint Flange SS 347 Threaded Flange SS 347 Blind Flange SS 347 Spectacle Blinds SS 347 Spades and Ring Spacers SS 347 Square Flange SS 347H Welding Neck Flange SS 347H Slip On Flange SS 347H Socket Weld Flange SS 347H Lap Joint Flange SS 347H Threaded Flange SS 347H Blind Flange SS 347H Spectacle Blinds SS 347H Spades and Ring Spacers SS 347H Square Flange SS 446 Welding Neck Flange SS 446 Slip On Flange SS 446 Socket Weld Flange SS 446 Lap Joint Flange SS 446 Threaded Flange SS 446 Blind Flange SS 446 Spectacle Blinds SS 446 Spades and Ring Spacers SS 446 Square Flange Duplex 2205 Welding Neck Flange Duplex 2205 Slip On Flange Duplex 2205 Socket Weld Flange Duplex 2205 Lap Joint Flange Duplex 2205 Threaded Flange Duplex 2205 Blind Flange Duplex 2205 Spectacle Blinds Duplex 2205 Spades and Ring Spacers Duplex 2205 Square Flange Super Duplex 2507 Welding Neck Flange Super Duplex 2507 Slip On Flange Super Duplex 2507 Socket Weld Flange Super Duplex 2507 Lap Joint Flange Super Duplex 2507 Threaded Flange Super Duplex 2507 Blind Flange Super Duplex 2507 Spectacle Blinds Super Duplex 2507 Spades and Ring Spacers Super Duplex 2507 Square Flange
Nickel 200 Welding Neck Flange Nickel 200 Slip On Flange Nickel 200 Socket Weld Flange Nickel 200 Lap Joint Flange Nickel 200 Threaded Flange Nickel 200 Blind Flange Nickel 200 Spectacle Blinds Nickel 200 Spades and Ring Spacers Nickel 200 Square Flange Nickel 201 Welding Neck Flange Nickel 201 Slip On Flange Nickel 201 Socket Weld Flange Nickel 201 Lap Joint Flange Nickel 201 Threaded Flange Nickel 201 Blind Flange Nickel 201 Spectacle Blinds Nickel 201 Spades and Ring Spacers Nickel 201 Square Flange Monel 400 Welding Neck Flange Monel 400 Slip On Flange Monel 400 Socket Weld Flange Monel 400 Lap Joint Flange Monel 400 Threaded Flange Monel 400 Blind Flange Monel 400 Spectacle Blinds Monel 400 Spades and Ring Spacers Monel 400 Square Flange Monel K500 Welding Neck Flange Monel K500 Slip On Flange Monel K500 Socket Weld Flange Monel K500 Lap Joint Flange Monel K500 Threaded Flange Monel K500 Blind Flange Monel K500 Spectacle Blinds Monel K500 Spades and Ring Spacers Monel K500 Square Flange Inconel 600 Welding Neck Flange Inconel 600 Slip On Flange Inconel 600 Socket Weld Flange Inconel 600 Lap Joint Flange Inconel 600 Threaded Flange Inconel 600 Blind Flange Inconel 600 Spectacle Blinds Inconel 600 Spades and Ring Spacers Inconel 600 Square Flange Inconel 601 Welding Neck Flange Inconel 601 Slip On Flange Inconel 601 Socket Weld Flange Inconel 601 Lap Joint Flange Inconel 601 Threaded Flange Inconel 601 Blind Flange Inconel 601 Spectacle Blinds Inconel 601 Spades and Ring Spacers Inconel 601 Square Flange Inconel 625 Welding Neck Flange Inconel 625 Slip On Flange Inconel 625 Socket Weld Flange Inconel 625 Lap Joint Flange Inconel 625 Threaded Flange Inconel 625 Blind Flange Inconel 625 Spectacle Blinds Inconel 625 Spades and Ring Spacers Inconel 625 Square Flange Inconel 718 Welding Neck Flange Inconel 718 Slip On Flange Inconel 718 Socket Weld Flange Inconel 718 Lap Joint Flange Inconel 718 Threaded Flange Inconel 718 Blind Flange Inconel 718 Spectacle Blinds Inconel 718 Spades and Ring Spacers Inconel 718 Square Flange Incoloy 800 Welding Neck Flange Incoloy 800 Slip On Flange Incoloy 800 Socket Weld Flange Incoloy 800 Lap Joint Flange Incoloy 800 Threaded Flange Incoloy 800 Blind Flange Incoloy 800 Spectacle Blinds Incoloy 800 Spades and Ring Spacers Incoloy 800 Square Flange Incoloy 800H Welding Neck Flange Incoloy 800H Slip On Flange Incoloy 800H Socket Weld Flange Incoloy 800H Lap Joint Flange Incoloy 800H Threaded Flange Incoloy 800H Blind Flange Incoloy 800H Spectacle Blinds Incoloy 800H Spades and Ring Spacers Incoloy 800H Square Flange Incoloy 800HT Welding Neck Flange Incoloy 800HT Slip On Flange Incoloy 800HT Socket Weld Flange Incoloy 800HT Lap Joint Flange Incoloy 800HT Threaded Flange Incoloy 800HT Blind Flange Incoloy 800HT Spectacle Blinds Incoloy 800HT Spades and Ring Spacers Incoloy 800HT Square Flange Incoloy 825 Welding Neck Flange Incoloy 825 Slip On Flange Incoloy 825 Socket Weld Flange Incoloy 825 Lap Joint Flange Incoloy 825 Threaded Flange Incoloy 825 Blind Flange Incoloy 825 Spectacle Blinds Incoloy 825 Spades and Ring Spacers Incoloy 825 Square Flange Hastelloy C276 Welding Neck Flange Hastelloy C276 Slip On Flange Hastelloy C276 Socket Weld Flange Hastelloy C276 Lap Joint Flange Hastelloy C276 Threaded Flange Hastelloy C276 Blind Flange Hastelloy C276 Spectacle Blinds Hastelloy C276 Spades and Ring Spacers Hastelloy C276 Square Flange Hastelloy B2 Welding Neck Flange Hastelloy B2 Slip On Flange Hastelloy B2 Socket Weld Flange Hastelloy B2 Lap Joint Flange Hastelloy B2 Threaded Flange Hastelloy B2 Blind Flange Hastelloy B2 Spectacle Blinds Hastelloy B2 Spades and Ring Spacers Hastelloy B2 Square Flange Alloy 20 Welding Neck Flange Alloy 20 Slip On Flange Alloy 20 Socket Weld Flange Alloy 20 Lap Joint Flange Alloy 20 Threaded Flange Alloy 20 Blind Flange Alloy 20 Spectacle Blinds Alloy 20 Spades and Ring Spacers Alloy 20 Square Flange
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Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antarctica
Antigua And Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaijan
Bahamas, The
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bosnia and Herzegovina
Botswana
Bouvet Island
Brazil
British Indian Ocean
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
Cayman Islands
Central African Republic
Chad
Chile
China
China (Hong Kong S.A.R.)
China (Macau S.A.R.)
Christmas Islands (CX)
Cocos (Keeling) Islands
Colombia
Comoros
Congo
Congo Democractic Republic
Cook Islands
Costa Rica
Cote D'Ivoire (Ivory Coast)
Croatia (Hrvatska)
Cuba
Cyprus
Czech Republic
Denmark
Djibouti
Dominica
Dominican Republic
East Timor
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Ethiopia
Falkland Islands
Faroe Islands
Fiji Islands
Finland
France
French Guiana
French Polynesia
French Southern Territories
Gabon
Gambia, The
Georgia
Germany
Ghana
Gibraltar
Greece
Greenland
Grenada
Guadeloupe
Guam
Guatemala
Guinea
Guinea-Bissau
Guyana
Haiti
Heard and McDonald Islands
Honduras
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Jamaica
Japan
Jordan
Kazakhstan
Kenya
Kiribati
Korea
Korea, North
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macedonia
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
Marshall Islands
Martinique
Mauritania
Mauritius
Mayotte
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montserrat
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands Antilles
Netherlands, The
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
Northern Mariana Islands
Norway
Oman
Pakistan
Palau
Panama
Papua new Guinea
Paraguay
Peru
Philippines
Pitcairn Island
Poland
Portugal
Puerto Rico
Qatar
Reunion
Romania
Russia
Rwanda
Saint Helena
Saint Kitts And Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent / Grenadin
Samoa
San Marino
Sao Tome and Principe
Saudi Arabia
Senegal
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Georgia
Spain
Sri Lanka
Sudan
Suriname
Svalbard / Jan Mayen Island
Swaziland
Sweden
Switzerland
Syria
Taiwan
Tajikistan
Tanzania
Thailand
Togo
Tokelau
Tonga
Trinidad And Tobago
Tunisia
Turkey
Turkmenistan
Turks And Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom
United States
United States Minor Outlying
Uruguay
Uzbekistan
Vanuatu
Vatican City State (Holy See)
Venezuela
Vietnam
Virgin Islands (British)
Virgin Islands (US)
Wallis And Futuna Islands
Western Sahara
Yemen
Yugoslavia
Zambia
Zimbabwe
Products 
150Lbs / 150#
300Lbs / 300#
400Lbs / 400#
600Lbs / 600# 
900Lbs / 900#
1500Lbs / 1500# 
2500Lbs / 2500#
ASME / ANSI B16.5 / ASME B16.47 Flange- Download PDF
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