High Pressure Flanges

High pressure flanges

High-pressure flange: A flange used for the connection of pipes or equipment with a pressure higher than 10MPa. It mainly includes traditional high-pressure flanges and high-pressure self-tightening flanges.

Product Overview

Traditional high-pressure flange: It is a part that uses the plastic deformation of the sealing gasket (oval gasket, octagonal gasket, lens gasket, etc.) to achieve the sealing effect, is connected to the pipe end, and the pipe is connected with each other.

Product Introduction

Traditionally, it consists of a pair of flanges, a spacer, and a number of bolts and nuts. The gasket is installed on the sealing surface of the two flanges

After tightening the nut, the specific pressure on the surface of the gasket reaches a certain value, so that the connection is tight and does not leak. This form can be used in flammable, explosive, toxic media and high pressure occasions but the sealing reliability is poor.

Features:

1. The sealing principle belongs to plastic deformation

2. Bolt connection

3. The bolt should bear tensile force, temperature difference stress, and many external stresses such as bending moment and torque

4. The volume is huge, the weight is bulky, and the installation and positioning are very difficult.

5. The sealing performance is unstable, especially in the harsh case (high temperature, high pressure, and highly toxic medium), which is easy to leak, causing serious consequences.

Application characteristics

The high-pressure flange is mainly used in the installation of pipelines, and the high-pressure flange connection is an important connection mode for pipeline construction, which mainly connects the connection between pipes and plays an important role and value. The high-pressure flange connection is to fix two pipes, pipe fittings or equipment on a flange plate first, and between the two flanges, add flange pads, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment already have their own flanges, which are also flange connections. [1] High Pressure Flange Product Performance:

1. Wear resistance: the content of Al2O3 in the ceramic layer lined with ceramic composite steel pipe is greater than 95%, and the microhardness is HV1000-1500, so it has extremely high wear resistance, and its wear resistance is more than ten times higher than that of quenched medium carbon steel, which is better than tungsten drilling cemented carbide.

2. Corrosion-resistant ceramics are neutral materials, with stable chemical properties, excellent corrosion resistance and acid resistance, and can resist various inorganic acids, organic acids, organic solvents, etc., and its corrosion resistance is more than ten times that of stainless steel.

Material

Carbon Steel: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70

Stainess Steel: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;

Alloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo,

Imported material: [1] (nickel steel), WC5 (1.25% chromium 0.5% molybdenum steel), WC9 (2.25% chromium), C5 (5% chromium % molybdenum

High-pressure flanges generally refer to flanges used to connect pipes and equipment, and their main features and advantages include:

Withstand high pressure: The high-pressure flange design is able to withstand high pressure, ensuring that the piping system operates reliably under high pressure conditions.

Strong corrosion resistance: high-pressure flanges are usually made of high-strength alloy steel or stainless steel, which have good corrosion resistance and are suitable for the transportation of corrosive media.

Good sealing: The connection structure design of the high-pressure flange makes it have good sealing performance, which can effectively prevent the leakage of the medium and ensure the safe operation of the pipeline system.

Easy installation and maintenance: The high-pressure flange is bolted, which is convenient and quick to install and disassemble, and easy to maintain and replace.

Wide range of application: high-pressure flanges are suitable for high-pressure pipeline systems in various industrial fields, such as petrochemical, electric power, papermaking, metallurgy and other industries.

In general, high-pressure flanges have an important role and application in high-pressure pipeline systems due to their advantages of high strength, corrosion resistance, good sealing and convenient installation.