Large Diameter Gate Valves

Hanno Valve a famous factory in China，producing Large Diameter Gate Valves are engineered to handle substantial flow rates and are essential components in various industrial applications, including water treatment, oil and gas, chemical processing, and power generation. Their robust design ensures reliable operation and tight sealing in demanding environments.

Among various types of valves, gate valves are widely used.

Gate valve refers to a valve whose closing element (gate) moves vertically along the channel axis, mainly used for cutting off the medium in pipelines, that is, fully open or fully closed. Generally, gate valves cannot be used to regulate flow. It can be used for low temperature and low pressure, as well as high temperature and high pressure, and can be used for various media according to the different materials of the valve. But gate valves are generally not used in pipelines for transporting mud and other media.

Gate valves have the following advantages

1. The fluid resistance is low, and the sealing surface is less susceptible to erosion and erosion by the medium.

2. Opening and closing are relatively effortless. The required torque for opening and closing is relatively small;

3. It can be used on ring network pipelines where the medium flows in both directions, meaning that the flow direction of the medium is not restricted;

4. Simple form, short structural length, good manufacturing processability, and wide applicability. When fully open, the sealing surface is less eroded by the working medium than the globe valve;

5. The structural length is relatively short.

Nominal pressure or pressure level:

PN1.0-16.0MPa、ANSI CLASS 150-300LB、JIS10-20K

Nominal diameter or caliber:

DN10～1000、NPS 1/2 ～36"

Driving mode:

Manual, bevel gear transmission, pneumatic, electric, hydraulic, gas-liquid linkage, electro-hydraulic linkage

Valve body material:

WCB、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、CF8(304)、CF3(304L)、CF8M(316)、CF3M(316L)、Ti。 By selecting different materials, it can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc.

Due to its many advantages, gate valves have a wide range of applications. Usually, gate valves are used as devices for cutting off media in pipelines with DN ≥ 50mm, and even in some small-diameter pipelines (such as DN15-40mm), some gate valves are still retained.

Materials