BS 3293 Class 400 WELD NECK FLANGES

BS 3293 Class 400 Weld Neck Flanges | BS 3293 #400 Sch 40 Weld Neck Flange | BS #400 WNRF Flange | WNFF BS 3293 Class 400 | BS 3293 400 Weldneck Flange | BS 400 Weldneck Flange | BS 3293 Class #400 Weldneck Dimensions | BS 3293 400 weldneck flange schedule chart

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BS 3293 Class 400 Weld Neck Flanges are generally used in high pressure applications, where hot or cold temperatures exist. These steel BS 3293 weld neck flanges are circumferentially welded into the system at its neck which means that the integrity of the butt welded area can be easily examined by radiography. These Class 400 weld neck flanges reduce the turbulence and erosion inside the pipeline because the bores of both pipe and flange match. This also reduces high stress concentration at the base of the hub of the BS 3293 Class 400 weld neck pipe flange. Such weld neck are favoured in critical applications. The inside diameter of a BS 3293 weld neck flange is machined to match the inside diameter of the pipe. Tesco Steel & Engineering manufacture a wide range of high quality BS 3293 Class 400 Weld Neck Flanges in India.

BS 3293 Class 400 Flange Dimensions

NPS	O	C	Y2	A	X	R	NBH	DBH	D
26	971.5	88.9	193.7	668.3	727.1	749.3	28	47.6	876.3
28	1035.0	95.2	206.4	719.1	782.6	800.1	28	50.8	939.8
30	1092.2	101.6	219.1	769.6	836.6	857.2	28	54.0	996.9
32	1149.3	107.9	231.8	822.3	889.0	914.4	28	54.0	1054.1
34	1206.5	111.1	241.3	873.1	944.6	965.2	28	54.0	1104.9
36	1270.0	114.3	250.8	925.5	1012.9	1022.3	32	54.0	1168.4

General note..

All dimensions above are in millimeters unless otherwise indicated.

Indications..

NPS = Nominal Pipe Size
O = Outside Diameter of Flange
B1 = Flange Bore Slip-On
C = Thickness of Flange Min
Y2 = Weld Neck Overall Length
A = Weld Neck Diameter at Weld Bevel
X = Weld Neck Hub Diameter
R = Raised Face (O.D.) Outside Diameter
NBH = Number of Bolt Holes
DBH = Diameter of Bolt Holes
D = Diameter of Bolt Circle
B2 = To be specified by purchaser
Rf = Class 150-300 Rf height 1.6mm
Class 400-600 Rf height 6.35mm

Weights of Class 400 Weld-Neck flanges

NPS	Weld Neck kg
26	340
28	399
30	454
32	522
34	590
36	669

Advantages of using BS 3293 Class 400 Weldneck Flanges

Weldneck flanges offer several advantages over other types of flanges, such as slip-on flanges. Here are some of the benefits of using weldneck flanges:

Superior Strength
Weldneck flanges have a long tapered hub that provides additional strength to the connection between the pipe and the flange. The welding process creates a permanent and durable bond that can withstand high pressure and extreme temperatures.

Versatility in Accommodating Different Pipe Sizes
Weldneck flanges are available in various sizes, making them suitable for use with pipes of different diameters. The flanges can also be used with pipes of different materials, such as stainless steel, carbon steel, and alloy steel.

Secure and Leak-Free Connection
The welding process creates a strong and leak-free connection between the pipe and the flange. This ensures that the piping system is safe and efficient, reducing the risk of leaks and other safety hazards.

Easy to Install and Maintain
Weldneck flanges are relatively easy to install, and the welding process can be completed quickly. The flanges are also easy to maintain, requiring only periodic inspection and maintenance to ensure that they are in good working condition.

Applications of BS 3293 Class 400 Weldneck Flange

Weldneck flanges are used in various industrial piping applications, including:

Oil and Gas Industry
Weldneck flanges are commonly used in oil and gas piping systems, where they are used to transport crude oil, natural gas, and other petroleum products.

Chemical Processing Industry
Weldneck flanges are used in chemical processing plants to transport various chemicals and materials.

Water Treatment Industry
Weldneck flanges are used in water treatment plants to transport water and other fluids.

Power Generation Industry
Weldneck flanges are used in power generation plants to transport steam, gas, and other fluids.

Price List of Weldneck Flanges

Prices for BS 3293 Class 400 Weldneck Flanges are very affordable.

Please click on the "Ask for Quote" button or click here to request the updated price list and ready stock information along with your requirement.
TESCO STEEL & ENGINEERING maintains a stock of all standard items and can export them at the best price.

WELD NECK FLANGE BS 3293

BS 3293 Class 150 Weld Neck Flange

BS 3293 Class 300 Weld Neck Flange

BS 3293 Class 400 Weld Neck Flange

BS 3293 Class 600 Weld Neck Flange

Countries we export to: Manufacturers / Suppliers / Stockist of BS 3293 Class 400 Weld Neck Flanges in Kuwait, in UAE, in Germany,Saudi Arabia, West Africa, Dubai, Iraq, Congo, Mexico, Bahrain, Canada, Philippines, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Muscat, Russia, Vietnam, Angola, Indonesia, UK, Nigeria, Yemen, Italy, United States, Venezuela, Kazakhstan, Algeria, Jordan, Colombia, Libya, Chine, Peru, Iran, South Africa, Bangkok, Jiddah, Afghanistan, Israel, Zambia, Tanzania, Somalia, Pakistan.

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