Flanges

We are renowned manufacturers of flanges and pipe flanges. We utilize the latest technology & stringent quality control policy to ensure production of flanges of International standards.

Silver tube is a biggest leading company manufacturer and supplier of different kind flanges. A flange is used for connecting pipes, pumps, valves and other equipment to make a piping system. In the competitive market, the silver tube is the biggest manufacturer of flanges. We are supplier, exporter, and stockier of high-quality flanges. Pipe flanges are manufactured in different material like stainless steel, bronze, plastic, cast iron, aluminum, etc. we made all sizes of flanges and different dimensional.

Different types of flanges:
• Slip-on flanges: the raised and flat face slip-on flanges are used in quickly assembly or also used in less strict requirement in terms of length of the pipe section. We design a wide range of slip-on flanges as per the international standard.
• Weld neck flanges: we used international standard and quality for manufacturing the weld neck flanges. It is in high demand on the domestic market or export. We manufacture in a different class of flanges.
• Lap joint flanges: this flanges used in quick assembly and disassembly of pipeline section with limited working pressure we provide a wide range of this flange and used all test or standard before manufacturing.
• Blind flanges: these flanges are black flanges and no bore. It is used in quick assembly to save the cost. We also do the mill test for manufacture the blind flange.

Uses of flanges are- boiler equipment, seawater equipment, condenser, pulp, and paper industry, etc. we provide longer serviceability of flanges, and also provide deep galvanization and epoxy coating. All flanges bear high temperature and pressure.

Types of flanges:

• Slip on flanges (SORF/SOFF)
• Weld Neck Flanges (WNRF)
• Blind Flanges (BLRF)
• Threaded Flanges (THRF)
• Screwed Flanges
• Plate Flanges
• Lap Joint Flanges
• Long Weld Neck Flanges
• Customized Flanges
• Puddle Flanges are also available as per required Size.

Slip On Flanges

Slip on raised face flange (SORF) and Slip on Flat Face Flange (SOFF) are used in quick assembly to save the cost. Slip on flanges are used in less strict requirements in terms of length of pipe section. We provide wide range of Slip on flanges that are designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B
Size: ½” to 48” Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Weld Neck Flanges:

Weld Neck flanges are in high demand in export as well as domestic market and are manufactured by our unit with international quality and standards. We provide wide range of Weld Neck flanges that are designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Lap joint Flanges

Lap Joint flanges are used primarily when quick assembly & dissembly of pipe line section is required under limited working pressure. We provide wide range of Lap Joint flanges that are designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204/3.1B

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Blind Flanges (BLRF):

Blind Flanges are used in quick assembly to save the cost. These are blank flanges and have no bore. We provide wide range of Blind flanges that are designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Threaded Flanges:

Threaded flanges are used in special requirements to work under high temperature and pressure ensuring no welding point in the assembly. We provide wide range of Threaded flanges that are designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Long weld Neck flange:

We offer long neck weld flanges in various types to meet the demands of several engineering and process industries. These flanges are in accordance with the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE, and are offered along with mill test certificate as per EN 10204 / 3.1B.

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Orifice Flange:

We provide wide range of orifice flanges that is designed as per the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B.

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Plate Flange:

We provide wide range of quality approved range of plate flanges that is used for connection between pipes and tubes in several industry verticals. Offered to our clients in several types like spectacle blind, slip on (SORF), blind (BLRF), lap joint, reducing, ring joint and large dia ring. These flanges are hot dip galvanized and epoxy coating for compliance with international standards like ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. We also provide these flanges with mill test certificate as per EN 10204 / 3.1B.
Size: ½” to 48&rdquo
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#Grades:
Stainless steel plate flange
Stainless steel plate flange

• 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H and 904L

Copper alloy plate flange

• C 70600 (CU -NI- 90/10) - Cupro Nickel Plate Flanges
• C 71500 (CU -NI- 70/30) - Cupro Nickel Plate Flanges
• UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200

Duplex steel plate flange

• S 31803
• S 32205

Alloy steel plate flange

• ASTM SA 387 Grade 1/5/9/11/22/91

Carbon steel plate flange

• ASTM A 36, IS 2062

Low temperature carbon steel plate flange

• A 516 GR.70

Reducing Flange:

We are offering our clients with a precision engineered range of reducing flanges. Available in various types, these reducing flanges are in accordance with the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE. To ensure longer serviceability of these flanges, we provide them with hot dip galvanization and epoxy coating. For maximum satisfaction of our clients, we provide these flanges with mill test certificate as per EN 10204 / 3.1B.

Size: ½” to 48”
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Material of Construction	Standard	Grades
Stainless Steel reducing flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel reducing flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel reducing flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloys reducing flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys reducing flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel reducing flanges	ASTM A350	LF2 , LF3
Duplex Steel reducing flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61




Socket weld flanges:

Our customers can avail from us, an extensive range of SWRF - socket weld raised face flanges that is available in several types and material grades. Our flanges are in line with the standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE, and are provided with a mill test certificate as per EN 10204 / 3.1B for the same.

Material of Construction	Standard	Grades
Stainless Steel Socket weld flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Socket weld flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Socket weld flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloys Socket weld flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Socket weld flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Socket weld flanges	ASTM A350	LF2 , LF3
Duplex Steel Socket weld flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61




DIN Flanges

Our quality inspected Flanges comply with DIN (Deutsches Institute for Normung) standards for manufacturing of flanges. These din flanges, din pipe flanges, stainless steel din flanges are made up of qualitative metals that provide extra-strength to the flanges. These flanges are available in accurate standard sizes; our range of DIN Flanges can be customized as per the requirements of the clients.

Material of Construction	Grades
Stainless Steel	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel	Gr. F42,46,52,56,60,65,70
Alloy Steel	F1,F5,F9,F11,F22,F91
Nickel Alloys	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel	LF2 , LF3
Duplex Steel	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61