Threaded Flange

Teshi Fittings, a premier manufacturer of pipe fittings, offers high-quality Threaded Flanges designed for various industries including Petroleum, Chemical, Hydraulic, Food, and more. Crafted with meticulous precision and adherence to international quality standards, our Threaded Flanges provide secure and versatile connections for piping systems. With a commitment to excellence and customer satisfaction, Teshi Fittings delivers superior performance and durability in every flange, offering tailored solutions to meet specific project requirements. Experience the difference with Teshi Fittings’ Threaded Flanges and trust in our expertise for all your piping needs.

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Specification
Material & Grades
Dimensions

Standard Specification of Threaded Flange

Standards / Dimensions	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605
Size	1/2″ (15 NB) to 48″ (1200NB)
Flange Face Types / Connection Type	Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
Dimensions	ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings
BS	BS4504 , BS4504, BS1560, BS10
Class / Pressure Rating	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Material & Grades of Threaded Flange

Stainless Steel	ASTM/ASME A/SA182:- F304, F304L, F316, F316L, ASTM/ASME A/SA351:- CF3, CF3M, CF8, CF8M, DIN 1.4306, DIN 1.4301, DIN 1.4404, DIN 1.4401, DIN 1.4408, DIN 1.4308, DIN 1.4306, DIN 1.4409
Duplex & Super Duplex Steel	S31803 / S32205 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 S32750 / S32760 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Carbon Steel	ASTM/ASME A/SA105 A/SA105N and A/SA216-WCB, DIN 1.0460, DIN 1.0402, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, CS High Yield ASTM A694 / A694 (F52, F56, F60, F65, F70, F80)
Low Temperature Carbon Steel	ASTM A350, LF2, LF3
Alloy Steel	ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Nickel Alloy	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), Titanium (Grade I & II)

Dimension of Threaded Flange

THREADED FLANGES 150 LBS DIMENSIONS :

						Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Height1 (H)	Nbr	Holes	Dia. (C)
1/2″	90	9.6	35.05	30	14	4	15.87	60.3
3/4″	100	11.2	42.92	38	14	4	15.87	69.9
1″	110	12.7	50.80	49	16	4	15.87	79.4
1 1/4″	115	14.3	63.50	59	19	4	15.87	88.9
1 1/2″	125	15.9	73.15	65	21	4	15.87	98.4
2″	150	17.5	91.94	78	24	4	19.05	120.7
2 1/2″	180	20.7	104.65	90	27	4	19.05	139.7
3″	190	22.3	127.00	108	29	4	19.05	152.4
3 1/2″	215	22.3	139.70	122	30	8	19.05	177.8
4″	230	22.3	157.22	135	32	8	19.05	190.5
5″	255	22.3	185.67	164	35	8	22.22	215.9
6″	280	23.9	215.90	192	38	8	22.22	241.3
8″	345	27.0	269.75	246	43	8	22.22	298.5
10″	405	28.6	323.85	305	48	12	25.40	362.0
12″	485	30.2	381.00	365	54	12	25.40	431.8
14″	535	33.4	412.75	400	56	12	28.57	476.3
16″	595	35.0	469.90	457	62	16	28.57	539.8
18″	635	38.1	533.40	505	67	16	31.75	577.9
20″	700	41.3	584.20	559	71	20	31.75	635.0
24″	815	46.1	692.15	663	81	20	34.92	749.3

The dimensions are in millimeters

THREADED FLANGES 300 LBS DIMENSIONS :

							Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Dia. (A)	Height1 (H)	Nbr	Holes	Dia. (C)
1/2″	95	12.7	35.05	38	23.6	21	4	15.87	66.7
3/4″	115	14.3	42.92	48	29.0	24	4	19.05	82.6
1″	125	15.9	50.80	54	35.8	25	4	19.05	88.9
1 1/4″	135	17.5	63.50	64	44.4	25	4	19.05	98.4
1 1/2″	155	19.1	73.15	70	50.3	29	8	22.22	114.3
2″	165	20.7	91.94	84	63.5	32	8	19.05	127.0
2 1/2″	190	23.9	104.65	100	76.2	37	8	22.22	149.2
3″	210	27.0	127.00	117	92.2	41	8	22.22	168.3
3 1/2″	230	28.6	139.70	133	104.9	43	8	22.22	184.2
4″	255	30.2	157.22	146	117.6	46	8	22.22	200.0
5″	280	33.4	185.67	178	144.4	49	8	22.22	235.0
6″	320	35.0	215.90	206	171.4	51	12	22.22	269.9
8″	380	39.7	269.75	260	222.2	60	12	25.40	330.2
10″	445	46.1	323.85	321	276.2	65	16	28.57	387.4
12″	520	49.3	381.00	375	328.6	71	16	31.75	450.8
14″	585	52.4	412.75	425	360.4	75	20	31.75	514.4
16″	650	55.6	469.90	483	411.2	81	20	34.92	571.5
18″	710	58.8	533.40	533	462.0	87	24	34.92	628.6
20″	775	62.0	584.20	587	512.8	94	24	34.92	685.8
24″	915	68.3	692.15	702	614.4	105	24	41.27	812.8

The dimensions are in millimeters

THREADED FLANGES 600 LBS DIMENSIONS :

							Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Dia. (A)	Height1 (H)	Nbr	Holes	Dia. (C)
1/2″	95	14.3	35.05	38	23.6	22	4	15.87	66.7
3/4″	115	15.9	42.92	48	29.0	25	4	19.05	82.6
1″	125	17.5	50.80	54	35.8	27	4	19.05	88.9
1 1/4″	135	20.7	63.50	64	44.4	29	4	19.05	98.4
1 1/2″	155	22.3	73.15	70	50.6	32	4	22.22	114.3
2″	165	25.4	91.94	84	63.5	37	8	19.05	127.0
2 1/2″	190	28.6	104.65	100	76.2	41	8	22.22	149.2
3″	210	31.8	127.00	117	92.2	46	8	22.22	168.3
3 1/2″	230	35.0	139.70	133	104.9	49	8	25.40	184.2
4″	275	38.1	157.22	152	117.6	54	8	25.40	215.9
5″	330	44.5	185.67	189	144.4	60	8	28.57	266.7
6″	355	47.7	215.90	222	171.4	67	12	31.75	292.1
8″	420	55.6	269.75	273	222.2	76	12	31.75	349.2
10″	510	63.5	323.85	343	276.2	86	16	34.92	431.8
12″	560	66.7	381.00	400	328.6	92	20	34.92	489.0
14″	605	69.9	412.75	432	360.4	94	20	38.10	527.0
16″	685	76.2	469.90	495	411.2	106	20	41.27	603.2
18″	745	82.6	533.40	546	462.0	117	20	44.45	654.0
20″	815	88.9	584.20	610	512.8	127	24	44.45	723.9
24″	940	101.6	692.15	718	614.4	140	24	47.62	838.2

The dimensions are in millimeters

Manufacturing process and features of Threaded Flange

Manufacturing Process:

Material Selection : Choose suitable materials such as stainless steel, carbon steel, or alloy steel based on the application requirements and environmental conditions.
Cutting : Cut the raw material into the required size using cutting machines or torches.
Forming the Flange : Forge or machine the raw material to form the basic shape of the flange, ensuring precise dimensions and smooth surfaces.
Threading : Cut internal threads into the flange bore using threading machines or tools. The threads are typically tapered (NPT – National Pipe Thread) or parallel (BSPT – British Standard Pipe Thread) to ensure a tight seal when connected to a threaded pipe.
Machining : Use CNC machines to machine the flange surface, bore, and bolt holes to precise dimensions according to standards such as ANSI B16.5 or customer specifications.
Heat Treatment : Apply heat treatment processes like annealing, normalizing, or quenching to improve mechanical properties and relieve internal stresses.
Surface Finishing : Perform surface treatments such as grinding, polishing, or coating to enhance corrosion resistance and improve aesthetics.
Inspection and Testing : Conduct rigorous inspection and testing, including dimensional checks and non-destructive testing (NDT) methods like ultrasonic or radiographic testing, to ensure quality and reliability.
Marking and Packaging : Mark the flange with relevant information such as material grade, size, pressure rating, and threading specifications. Carefully package the flanges to protect them during transportation.

Features of Threaded Flange :

Ease of Installation : Threaded flanges are easy to assemble and disassemble, making them suitable for applications where frequent maintenance or inspection is required.
Leak-Free Seal : The threaded connection provides a secure and tight seal, preventing leakage in piping systems.
Versatility : Suitable for a wide range of applications and industries due to availability in various sizes, materials, and pressure ratings.
Cost-Effectiveness : Generally more cost-effective than other flange types like Weld Neck flanges, both in terms of initial cost and installation.
Assembly Flexibility : Allows for easy alignment and adjustment during installation, accommodating slight misalignments.
Pressure Handling : Suitable for moderate-pressure applications where a strong and reliable connection is required.
Corrosion Resistance : Available in materials with excellent corrosion resistance properties, suitable for use in corrosive environments.
Weld-Free Connection : Eliminates the need for welding, reducing labor costs and time during installation.

Threaded Flanges are widely used in piping systems where ease of assembly, maintenance, and reliability are essential. Their manufacturing involves precision engineering and stringent quality control to ensure they meet industry standards and provide leak-free connections in various industrial applications.

Application Of Threaded Flange

Plumbing and Water Supply	Threaded flanges are extensively used in plumbing systems for connecting pipes carrying water, sewage, and other fluids. They provide a convenient and leak-free connection that facilitates easy installation and maintenance.
Chemical Processing	Found in chemical plants where threaded connections are needed for pipelines handling corrosive chemicals and fluids. Threaded flanges ensure a tight seal and facilitate quick assembly and disassembly for maintenance purposes.
Oil and Gas Industry	Utilized in both upstream and downstream operations of the oil and gas industry. Threaded flanges are suitable for connecting pipelines, valves, and equipment where frequent disassembly and reassembly are required, such as pump stations and distribution facilities.
Food and Beverage Processing	Used in food processing plants for connecting sanitary pipelines that transport beverages, dairy products, and other consumables. Threaded flanges provide a hygienic connection and ease of cleaning during production line maintenance.
HVAC Systems	Employed in heating, ventilation, and air conditioning systems for connecting pipes that carry refrigerants, water, or air. Threaded flanges allow for quick installation and adjustment in HVAC installations in residential, commercial, and industrial buildings.
Fire Protection Systems	Found in fire sprinkler systems where threaded connections are used for pipes distributing water or fire suppression agents. Threaded flanges provide a reliable seal and facilitate the installation of emergency fire protection equipment.
Mining and Mineral Processing	Used in mining operations for connecting pipelines that transport ores, minerals, and slurry. Threaded flanges withstand abrasive materials and facilitate the installation and maintenance of piping systems in mining facilities.
Marine Applications	Found on ships and offshore platforms where threaded connections are required for piping systems that transport water, fuel, and other fluids. Threaded flanges provide a secure connection suitable for marine environments.
Construction and Infrastructure	Used in construction projects for connecting pipes in building services such as water supply, drainage systems, and utility distribution networks. Threaded flanges are preferred for their ease of installation and reliability in diverse construction applications.

Threaded Flange Available Types

Threaded Flange	Screwed Flanges
ANSI B16.5 Threaded Flanges	Threaded Flange Dimensions
ASME B16.5 Screwed Flanges Stockists	ANSI B16.5 Class 150 Threaded Flanges
Stainless Steel Threaded Flanges Suppliers	SS Threaded Flange
Threaded Plate Flanges Exporter	ASME B16.47 Series A and B Screwed Flanges
ANSI B16.5 class 150 Screwed Flange Stockholder	ANSI 150 Threaded Flange Manufacturers
Carbon Steel Threaded Flange	High Quality Screwed Flanges Manufacturer
ASTM A182 Stainless Steel Screwed Flange	Duplex Steel Threaded Flange
Super Duplex Steel Threaded Forged Flange	Copper Nickel Threaded Pipe Flanges
High Nickel Alloy Screwed Flanges	Hastelloy Flat Faced Threaded Flanges
Titanium ASME B16.47 Series A and B Screwed Flanges	Inconel Threaded Flanges

Others Products

Frequently Asked Questions

Most frequent questions and answers

A threaded flange is a type of flange designed with internal threads that allow it to be screwed onto a pipe or fitting. Unlike welded or slip-on flanges, threaded flanges do not require welding for installation, making them ideal for applications where welding is not feasible or practical.

Threaded flanges come in a variety of sizes to accommodate different pipe diameters and pressure ratings. Standard sizes are available, and custom sizes can be manufactured to meet specific requirements.

Threaded flanges are installed by screwing the flange onto the threaded end of a pipe or fitting. A gasket is typically placed between the flange and the pipe to ensure a leak-proof seal. Proper tightening of the flange is necessary to secure the connection and prevent leaks.

Yes, we offer custom manufacturing solutions for threaded flanges to meet specific requirements. Please contact us with your detailed specifications, and we will work with you to produce flanges tailored to your needs.

The lead time for threaded flanges depends on the complexity and volume of the order. After reviewing your specifications, we will provide an estimated lead time. We are committed to delivering all projects on schedule while maintaining the highest quality standards.

Yes, threaded flanges can be used for both liquid and gas applications, provided they are made from appropriate materials and installed correctly to handle the specific conditions of the system, including pressure and temperature.

Threaded flanges are commonly made from materials such as carbon steel, stainless steel, alloy steel, and other metals. The material selection depends on the specific application requirements, including the type of fluid or gas, temperature, pressure, and environmental conditions.

Threaded flanges are used in a wide range of applications, particularly where welding is not practical or desired. They are commonly used in low-pressure systems, maintenance operations, and areas where disassembly and reassembly are frequently required. Industries such as water treatment, chemical processing, and oil and gas often use threaded flanges.

Threaded flanges are manufactured to comply with various industry standards, such as ASME B16.5 and ANSI standards. These standards define the dimensions, tolerances, and material requirements to ensure compatibility and reliability in piping systems.

Threaded flanges offer several advantages, including:

Ease of installation: Allows for quick and easy installation without the need for welding.
Disassembly: Facilitates easy disassembly and reassembly for maintenance or modifications.
Cost-effectiveness: Generally less expensive than welded or slip-on flanges.
Versatility: Suitable for a range of applications and pipe sizes.
No welding required: Ideal for applications where welding is not possible or desired.

Regular inspection of threaded flanges involves checking for leaks and ensuring that the threads are intact. It is important to inspect for any signs of corrosion, wear, or damage that could affect the integrity of the connection.