Flanged steel gate valve 31s45nzh Premium Pn 160

Gate valves 31s45nzh PN 160 are high-pressure steel shut-off valves designed for installation on pipelines for various purposes. The valves are designated ZKS Ru160 for small diameter pipelines (up to 40 mm) and ZKL Ru160 for medium diameter pipelines (up to 150 mm). They are intended for use with non-aggressive working liquids and gases.

Main construction elements of the 31s45nzh valves include the following components:

1. Body: Made of Carbon Steel WCB, providing strength and durability. The body serves as the base for all other elements and must withstand high pressures.
2. Bonnet: Also made of Carbon Steel WCB, it covers the body and ensures the valve's tightness.
3. Wedge: The main shut-off element that blocks the flow of the working medium. The wedge is also made of Carbon Steel WCB and has a shape that allows it to effectively seal the connection when the valve is closed.
4. Stem: Made of SS420 and serves to control the movement of the wedge. It transmits force from the handwheel to the wedge, allowing the valve to be opened or closed.
5. Stem nut: Made of brass, it provides a reliable connection for the stem and allows it to rotate freely.
6. Wheel: Made of Carbon Steel WCB, used for manual valve control. The wheel increases the torque required to open or close the valve.
7. Stem packing: The gland packing is used to seal the area where the stem exits the body, also helping to prevent leaks.

Main areas of application for the 31s45nzh valves:

1. Industrial pipelines: 31s45nzh valves are used for transporting water, steam, or gas in industrial systems. Their reliability and high tightness make them ideal for operation in challenging conditions.
2. Petroleum product supply systems: These valves are used in the oil and gas industry, where reliable shut-off of hydrocarbon flows is required.
3. Heat networks: In heating and hot water supply systems, the 31s45nzh valves control the flow of heat carriers, which is critical for the efficient functioning of heat networks.
4. Utility facilities: The valves are used in water supply and sewage systems, where reliable shut-off valves are needed to control the flow of water.

Gate valves 31s45nzh Premium feature improved build quality and extended service life. Unlike standard versions, these valves are equipped with a stem made of SS420 (20X13) stainless steel, which provides enhanced corrosion resistance and durability. In addition, upgraded brass bushings and sealing elements are used, ensuring tighter contact of the sealing surfaces and improved tightness. This reduces wear, minimizes the risk of leakage, and increases the overall lifespan of the valve.

These design improvements make this version more reliable compared to standard 31s45nzh gate valves.