Introduction
GB 12236-89 is a general-purpose steel rotary check valve. It is a valve primarily used to cut off, divert, or throttle the flow of water, oil,and other liquids,and is also used to stop the flow and prevent backflow in piping systems. It has simple structure with small structure weight, easy installation and maintenance. It is widely used in production safeguard systems, petrochemical plants, hydraulic transmission, fuel and gas systems, etc.
Working principle
The GB 12236-89 valve has a simple and robust design, with a 2-part valve body and a rotating disc that is connected to a stem or handle. The stem is turned 90 degrees to open and close the valve. When the valve is open, the disc is rotated so that the flow is allowed to pass without restriction through the disc. When the valve is closed, the disc is rotated so that it prevents flow movment when the disc is rotated 90 degrees against the flow direction.
Structure
The GB 12236-89 valve consists mainly of a valve body, a disc, a stem, a nut, and a hand wheel. The disc is an integral part of the valve body, attached to a rounded shaft. The hand wheel is used to control the movement of the disc, either opening or closing the valve. The flow of the valve is controlled by the size of the disc orifice, and in some cases, by the disc shape or other design features.
Material
The GB 12236-89 valve is made of corrosion-resistant steel and is manufactured to strict technical standards. It is corrosion-resistant and is composed of high-grade stainless steel and alloy steel, which have excellent mechanical properties and wear resistance. It is designed to be durable and has the ability to withstand extreme temperatures and pressures.
Features
The GB 12236-89 is designed with a low flow resistance and minimum pressure drop. It is designed to be easy to install and maintain. It is also designed for long service life, as well as for maximum operational performance. It has a large flow capacity and tight shut-off capability. The valve also has a wide range of operating temperature and pressure ranges.
Installation
The GB 12236-89 valve is easy to install. It is important to ensure that the valve is installed in the correct direction of flow. The hand wheel should be in the open position and the stem should be turned to the full open position before installation. The valve should be mounted on a stable, level surface. It is important to use the correct fittings for the installation and ensure that all connections are tight.
Conclusion
In conclusion, the GB 12236-89 valve is a versatile steel rotary check valve. It is designed to be easy to install and maintain and its corrosion-resistant body material make it suitable for use in a variety of applications. It has a low flow resistance, a large flow capacity, and excellent shut-off capability. With a wide range of operating temperature and pressure ranges, the GB 12236-89 is a reliable and versatile valve solution.
