Riddhi Siddhi Metal Impex is one of the leading Screwed/Threaded Flanges Manufacturers in Mumbai, India. The Stainless Steel MSS SP44 has been designed under national and international industry rules using high-grade raw materials and advanced technology. Our ANSI B16.5 Screwed/Threaded Flanges and other products are subjected to various quality checks, and then goes for packaging. We have a ready stock of Screwed/Threaded Flanges of different sizes and shapes per the customers’ requirements. These metals are used in Industrial Sectors like Building & Construction Industry, petrochemical, Oil & Gas Industry, and chemical industries. Moreover, Screwed/Threaded Flanges can be tailored per our client’s requirements.

Screwed/Threaded Flanges are machined with solid forgings. We are also known as one of the Largest Suppliers of high-quality Stainless Steel Threaded Flanges, Alloy Steel Screwed Flanges, Nickel Alloy Screwed Flanges, and Duplex Steel Threaded Flanges, and many more. Screwed/Threaded Flanges are defined as one of the essential parts of the Pipe Fitting Industry. We are also known as one of the Largest Suppliers of Long Weld Neck Flanges.
| ASME B16.5 Threaded Flange/ Screwed Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Threaded Flange/ Screwed Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Threaded Flange/ Screwed Flange, ASME Threaded Flange/ Screwed Flange, BS Threaded Flange/ Screwed Flange, DIN Threaded Flange/ Screwed Flange, EN Threaded Flange/ Screwed Flange, 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 |
| Threaded Flange/ Screwed Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Threaded Flange/ Screwed Flange |
| Threaded Flange/ Screwed Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Threaded Flange/ Screwed Flange |
| JIS threaded Flanges pn16 | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Threaded Flange/ Screwed Flange |
| UNI threaded reducing Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Threaded Flange/ Screwed Flange |
| EN npt threaded Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Threaded Flange/ Screwed Flange |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Threaded Flange/ Screwed Flange |
| Most common types of Threaded Flange/ Screwed Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third-Party Inspection Report, etc |
| Production technique |
|
| 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 |
| Special design threaded flange din 2566 | As per your drawingAS, ANSI,
BS, DIN, and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI ultrasonic flaw detector, Magnetic particle detector |
| Equipment weld on threaded flange | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine, etc |
| Origin Of reducing threaded flange | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS,
AS2129, AWWA, EN, SABS, NFE
etc. Threaded Flange/ Screwed Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
|
| Threaded Flange/ Screwed Flange Uses & application |
|
| Export to A105 threaded flange | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| ASME B16.5 NPT Threaded Flanges Manufacturer In India | |
Riddhi Siddhi Metal Impex is India’s most trusted Screwed/Threaded Flanges Supplier. Our High-quality, sensible customer service, and in-house processing capabilities have made us one of the best emerging and leading suppliers in India. We are an ISO 9001:2009 certified company that has been in existence since 2003. ASTM | ASME | ANSI Screwed/Threaded Flanges at Riddhi Siddhi Metal Impex In bears toughness and hardness check before provision it to our purchasers.
| Pipe Size(NPS) | Outside Diameter of FlangeA | Diameter of Raised FaceB | Thickness of FlangeC | Diameter of Hub at BaseJ | Length of HubL | Minimum Thread LengthN | Number of Bolt Holes | Approx. Weight(Lbs.) |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 3 1/2 | 1 3/8 | 7/16 | 1 3/16 | 5/8 | 5/8 | 4 | 2 |
| 3/4 | 3 7/8 | 1 11/16 | 1/2 | 1 1/2 | 5/8 | 5/8 | 4 | 2 |
| 1 | 4 1/4 | 2 | 9/16 | 1 15/16 | 11/16 | 11/16 | 4 | 2 |
| 1 1/4 | 4 5/8 | 2 1/2 | 5/8 | 2 5/16 | 13/16 | 13/16 | 4 | 3 |
| 1 1/2 | 5 | 2 7/8 | 11/16 | 2 9/16 | 7/8 | 7/8 | 4 | 3 |
| 2 | 6 | 3 5/8 | 3/4 | 3 7/16 | 1 | 1 | 4 | 5 |
| 2 1/2 | 7 | 4 1/8 | 7/8 | 3 9/16 | 1 1/8 | 1 1/8 | 4 | 7 |
| 3 | 7 1/2 | 5 | 15/16 | 4 1/4 | 1 3/16 | 1 3/16 | 4 | 8 |
| 3 1/2 | 8 1/2 | 5 1/2 | 15/16 | 4 13/16 | 1 1/4 | 1 1/4 | 8 | 11 |
| 4 | 9 | 6 3/16 | 15/16 | 5 5/16 | 1 5/16 | 1 5/16 | 8 | 13 |
| 5 | 10 | 7 5/16 | 15/16 | 6 7/16 | 1 7/16 | 1 7/16 | 8 | 15 |
| 6 | 11 | 8 1/2 | 1 | 7 9/16 | 1 9/16 | 1 9/16 | 8 | 19 |
| 8 | 13 1/2 | 10 5/8 | 1 1/8 | 9 11/16 | 1 3/4 | 1 3/4 | 8 | 30 |
| 10 | 16 | 12 3/4 | 1 3/16 | 12 | 1 15/16 | 1 15/16 | 12 | 43 |
| 12 | 19 | 15 | 1 1/4 | 14 3/8 | 2 3/16 | 2 3/16 | 12 | 64 |
| 14 | 21 | 16 1/4 | 1 3/8 | 15 3/4 | 2 1/4 | 2 1/4 | 12 | 85 |
| 16 | 23 1/2 | 18 1/2 | 1 7/16 | 18 | 2 1/2 | 2 1/2 | 16 | 93 |
| 18 | 25 | 21 | 1 9/16 | 19 7/8 | 2 11/16 | 2 11/16 | 16 | 120 |
| 20 | 27 1/2 | 23 | 1 11/16 | 22 | 2 7/8 | 2 7/8 | 20 | 155 |
| 22 | 29 1/2 | 25 1/4 | 1 13/16 | 24 | 3 1/8 | 3 1/8 | 20 | 159 |
| 24 | 32 | 27 1/4 | 1 7/8 | 26 1/8 | 3 1/4 | 3 1/4 | 20 | 210 |
|
Pipe Normal Diam.
|
O.D. Flange
|
Thk. Of Flange Min
|
Diam.
of Hub |
Diameter of Raised Face
|
Length Hub.Y
|
Thread Length
|
Diam.
of Bolt Circle |
Diam.
of Bolt Holes |
Number
of Bolts |
Diam. of
Bolts (inch) |
KG
|
LB
|
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
inch
|
dn
|
O
|
C
|
X
|
G
|
Y
|
T
|
BC
|
BH
|
BN
|
BD
|
||
|
1/2″
|
15
|
89.00
|
11.20
|
30.20
|
35.10
|
15.70
|
15.70
|
60.50
|
15.80
|
4
|
1/2″
|
0.4
|
0.9
|
|
3/4″
|
20
|
98.50
|
12.70
|
38.10
|
42.90
|
15.70
|
15.70
|
69.90
|
15.80
|
4
|
1/2″
|
0.7
|
1.5
|
|
1″
|
25
|
108.00
|
14.20
|
49.30
|
50.80
|
17.50
|
17.50
|
79.30
|
15.80
|
4
|
1/2″
|
0.8
|
1.8
|
|
1-1/4″
|
32
|
117.50
|
15.70
|
58.70
|
63.50
|
20.60
|
20.60
|
88.90
|
15.80
|
4
|
1/2″
|
1.2
|
2.6
|
|
1-1/2″
|
40
|
127.00
|
17.50
|
65.00
|
73.20
|
22.40
|
22.40
|
98.60
|
15.80
|
4
|
1/2″
|
1.5
|
3.3
|
|
2″
|
50
|
152.50
|
19.10
|
77.70
|
91.90
|
25.40
|
25.40
|
120.70
|
19.10
|
4
|
5/8″
|
2.3
|
5.1
|
|
2-1/2″
|
65
|
178.00
|
22.40
|
90.40
|
104.60
|
28.40
|
28.40
|
139.70
|
19.10
|
4
|
5/8″
|
3.7
|
8.1
|
|
3″
|
80
|
190.50
|
23.90
|
108.00
|
127.00
|
30.20
|
30.20
|
152.40
|
19.10
|
4
|
5/8″
|
4.1
|
9
|
|
3-1/2″
|
90
|
216.00
|
23.90
|
122.20
|
139.70
|
31.80
|
31.80
|
177.80
|
19.10
|
8
|
5/8″
|
5.1
|
11.2
|
|
4″
|
100
|
228.50
|
23.90
|
134.90
|
157.20
|
33.30
|
33.30
|
190.50
|
19.10
|
8
|
5/8″
|
5.9
|
13
|
|
5″
|
125
|
254.00
|
23.90
|
163.60
|
185.70
|
36.60
|
36.60
|
215.90
|
22.40
|
8
|
3/4″
|
7
|
15.4
|
|
6″
|
150
|
279.50
|
25.40
|
192.00
|
215.90
|
39.60
|
39.60
|
241.30
|
22.40
|
8
|
3/4″
|
8.4
|
18.5
|
|
8″
|
200
|
343.00
|
28.40
|
246.10
|
269.70
|
44.50
|
44.50
|
298.50
|
22.40
|
8
|
3/4″
|
13
|
28.6
|
|
10″
|
250
|
406.50
|
30.20
|
304.80
|
323.90
|
49.30
|
49.30
|
362.00
|
25.40
|
12
|
7/8″
|
18
|
39.5
|
|
12″
|
300
|
482.50
|
31.80
|
365.30
|
381.00
|
55.60
|
55.60
|
431.80
|
25.40
|
12
|
7/8″
|
29
|
64
|
|
14″
|
350
|
533.50
|
35.10
|
400.10
|
412.80
|
57.20
|
57.20
|
476.30
|
28.50
|
12
|
1″
|
39
|
86
|
|
16″
|
400
|
597.00
|
36.60
|
457.20
|
469.90
|
63.50
|
63.50
|
539.80
|
28.50
|
16
|
1″
|
47
|
103
|
|
18″
|
450
|
635.00
|
39.60
|
505.00
|
533.40
|
68.30
|
68.30
|
577.90
|
31.80
|
16
|
1 1/8″
|
57
|
126
|
|
20″
|
500
|
698.50
|
42.90
|
558.80
|
584.20
|
73.20
|
73.20
|
635.00
|
31.80
|
20
|
1 1/8″
|
76
|
167
|
|
24″
|
600
|
813.00
|
47.80
|
663.40
|
692.20
|
82.60
|
82.60
|
749.30
|
35.10
|
20
|
1 1/4″
|
97
|
214
|
We regularly supply this product to different cities in India. We have a huge clientele covering more than 55 cities in India and 33 countries worldwide. We are known for Socket Weld Flange Supplier and Exporters.
| Product supplied | City |
| Screwed/Threaded Flanges for Automobile Industry | Mumbai, Maharashtra |
| ARAMCO Flanges supply | Hyderabad, Telangana |
| Stainless Steel Flanges supply for Water Supply System | Banglore, Karnataka |
| Flanges for the Chemical industry | Surat, Gujarat |
Screwed/Threaded Flanges’ dependability and performance have created Riddhi Siddhi Metal Impex leading suppliers, dealers, manufacturers, and exporters of Stainless Steel Screwed/Threaded Flanges in India. Each month we tend to supply/export Screwed/Threaded Flanges to Indian port around fifty-two containers to completely different customers. We are a Screwed/Threaded Flanges Supplier in Mumbai, Chennai, Surat, New Delhi, Bangalore, and more than 80+ other cities.
| The city we supply Types of Screwed/Threaded Flanges: | |||||
|---|---|---|---|---|---|
| Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
| New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
| Bhubaneswar | Vijaywada | Firozabad | Bokaro Steel City | Rajkot | Bharuch |
| Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
| Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Bareilly |
| Varanasi | Haldia | Rourkela | Bangalore | Moradabad | Indore |
| Visakhapatnam | Trivandrum | Pithampur | Dibrugarh | Angul | Gwalior |
| Coimbatore | Kannur | Nagpur | Vadodara | Rudrapur | Noida |
| Agra | Bhagalpur | Jamshedpur | Bhilai | Lucknow | Kanpur |
| Thane | Bhopal | Sri City | Bareilly | Hosdurg | Pithampur |
Riddhi Siddhi Metal Impex exports Screwed/Threaded Flanges to UAE, European countries, Africa, Asian countries, and other continents. We have shipments going to various countries every month. With the increasing clientele, we export 3 containers of Screwed/Threaded Flanges to new locations and ports Each month. We are India’s top Manufacturers and have been leading the market for the past few decades.
| Countries we supply and export Types of Screwed/Threaded Flanges worldwide: | ||||
|---|---|---|---|---|
| Saudi Arabia | Oman | Kuwait | Netherlands | Iran |
| Bahrain | Qatar | UAE | Africa | China |
| Nigeria | Mexico | Canada | Venezuela | United Kingdom |
| United States | South Africa | Malaysia | Bangladesh | Turkey |
| Singapore | Sri Lanka | Australia | Brazil | Germany |
| France | Italy | South Korea | Poland | Belgium |