Class 150 Flange

The nominal size is less than or equal to DN600, the nominal pressure is Class150, the sealing surface is flat, and the length and quality of the hexagon head bolts or studs used for steel pipe flange connection can refer to the regulations in Table A4 for selection. Our company can produce various specifications of stainless steel, alloy steel, carbon steel flange series products; Products after strict quality inspection, in the size and quality of continuous improvement, widely sold at home and abroad, and won the praise of domestic and foreign customers.

Flat welding flanges include flat welding flanges and flat welding flanges with necks.

Flat welded flange (PL)

Flat welded flanges are suitable for steel pipe connections with nominal pressure not exceeding 2.5MPa. The sealing surface of the flat welding flange can be made into three types: smooth type, concave-convex type and tongue and groove type. Smooth flat welded flanges are the most widely used. It is mostly used when the medium conditions are relatively moderate, such as low-pressure non-purified compressed air and low-pressure circulating water.

Flat welded flange with neck (SO)

The neck height of the flat welded flange with neck is low, and the stiffness and bearing capacity of the flange are improved. Compared with butt welding flange, the welding workload is large, the electrode consumption is high, and it cannot withstand high temperature and high pressure and repeated bending and temperature fluctuations, but the on-site installation is more convenient, and the process of welding seam kneading can be omitted, which is more popular.

(5) Butt welding with neck (WN)

Butt welding flange: Neck flange welding is often referred to as a "high hub" flange. Its purpose is to transfer pressure to the pipe, thereby reducing high stress concentrations in the flange. Neck flange welding is best designed to provide flanges for butt welding those due to their inherent structural value. However, the price is relatively high, because the production process of the product is complicated.

Threaded (threaded) flange: This threaded flange is connected by a wire buckle. However, the center of the product has a thread size corresponding to the tube. Its main advantage is that it can be assembled without welding.

In addition, there are sliding flanges and lap flanges.

Details Of The Resolution

Smooth Welding Surface: Emphasis On Detail, Easy Maintenance, Good Finish

Material Selection: Rich Experience, Forging Process, Quality Selection

Easy Installation: Good Texture, Standard Production, Easy Installation

Product Feature

1. Corrosion Resistance

2. Good Finish

3. Easy Maintenance 

4. Easy To Weld

5. Long Service Life

Product Parameter

Factory Display