Electric Globe Shut-Off Valve for High-Pressure and High-Temperature Applications

1. Product Overview

The Electric Globe Shut-Off Valve is designed for reliable flow isolation and control in high-temperature and high-pressure industrial piping systems. Featuring a welded connection structure, it is suitable for water, steam, oil, and other compatible industrial media.

The valve consists primarily of a globe valve body and an electric actuator. Powered by a 380V AC supply, the actuator enables remote opening and closing operations, making the valve suitable for automated industrial control systems.

The valve features excellent sealing performance, a compact structure, reliable operation, and convenient maintenance. Its sealing surfaces are designed to resist wear and scratches, helping extend service life under demanding operating conditions.

The valve is suitable for pressure ratings from PN20 to PN320 (depending on configuration) and operating temperatures up to 540°C. Certain high-temperature configurations can withstand temperatures up to 570°C.

It is widely used in petroleum, chemical processing, thermal power generation, and other industrial facilities where reliable pipeline isolation is required.

2. Design and Operating Principle

The Electric Globe Shut-Off Valve features a low-inlet, high-outlet flow configuration designed to reduce flow resistance and minimize the force required to open the valve.

When the valve is closed, the sealing surfaces between the valve disc and seat are protected from prolonged exposure to operating pressure and temperature, helping reduce wear and extend service life.

The valve design also allows the packing to be inspected or replaced while the valve is in the fully open position under specified operating conditions, provided the backseat is properly engaged. This feature facilitates maintenance and can reduce system downtime.

3. Key Features

1. Robust Construction: Manufactured using carefully selected materials in accordance with applicable industrial standards. The valve features a reliable structural design suitable for demanding industrial applications.

2. Wear-Resistant Sealing Surfaces: The valve disc and seat sealing surfaces are reinforced with cobalt-based or other hard alloy overlays, providing excellent wear resistance, high-temperature performance, corrosion resistance, and anti-galling properties.

3. Corrosion-Resistant Valve Stem: The valve stem undergoes quenching, tempering, and surface nitriding treatments to improve corrosion resistance and wear resistance.

4. Multiple Connection Options: Available with various pipe flange standards and flange sealing surface configurations to meet different engineering and installation requirements.

5. Flexible Material Selection: Valve body materials, packing, and gaskets can be selected according to actual operating pressures, temperatures, media characteristics, and application requirements.

6. Reliable Backseat Design: The backseat features a threaded connection or an integrally welded austenitic stainless steel structure to provide dependable sealing. Under approved operating conditions, this design facilitates packing replacement without interrupting system operation.

7. Electric Actuation and Remote Control: Equipped with a compact, lightweight, multifunctional multi-turn electric actuator. The valve can be integrated with remote control systems and industrial automation equipment. Different actuator configurations are available according to application requirements.

4. Technical Specifications