Flanged steel gate valve 30s15nzh Pn 40

Steel gate valves 30s15nzh with an outside screw stem PN 40 are used for completely shutting off the flow of working media, such as water, steam, oil, natural gas and other non-aggressive liquids or gases.

Marking

• 30 – indicates the type of product (gate valve).
• s – indicates the material of the body (steel).
• 15 – model code according to the nomenclature.
• nzh – means the seal is made of stainless steel.

Structural features and main elements

Body: Made by casting carbon steel. The cast body ensures sufficient mechanical strength and resistance to corrosion when used with non-aggressive working media.

Shut-off element: The shut-off element is a double-disc wedge that moves up or down the stem when the gate valve is opened or closed. This allows for effective shut-off or opening of the working medium flow.

Stem: The stem is made of corrosion-resistant steel and has an outside screw construction, which increases the building height of the gate valve in the open position by the amount of the shutter stroke. It is operated manually with the help of a handwheel.

Connection to pipeline: The gate valve is installed on pipelines using a flange connection.

Main applications of 30s15nzh gate valves include:

1. Industrial pipelines: The gate valve is used on pipelines with diameters from 50 to 300 mm and working pressure up to 40 kg/cm². This makes it suitable for transporting liquids and gases in industrial systems.
2. Gas pipelines and oil pipelines: Due to its design and materials, the 30s15nzh gate valve can be effectively used in gas and oil systems where reliable flow shut-off is required.
3. Water supply and sewage systems: Water systems can also use the 30s15nzh gate valve to control water or wastewater flows.