Customizable Copper Core Gate Valve DN20-DN80 Flanged/Threaded Connection Factory Price

Product Description

The copper core gate valve is a type of gate valve with copper alloy as the core component (such as the gate, stem or sealing surface). With the excellent properties of copper, it is widely used in the field of low-pressure fluid control. The following is an introduction from the core characteristics, applicable scenarios and other aspects:

Core structure and material
Main body material
Valve body: mostly cast iron, ductile iron or brass (small valves), with anti-corrosion treatment (such as painting, electroplating) on the outer layer.
Core components (copper core): usually made of brass (such as H59, H62) or bronze (such as tin bronze), including gate, stem, sealing seat, etc., using copper's corrosion resistance, good processability and sealing to improve valve performance.

Structural features
The gate lift structure is adopted, and the valve stem is driven by rotating the handwheel to make the gate move vertically to realize pipeline opening and closing.
Sealing method: mostly soft seal (such as with rubber sealing ring) or copper-copper hard seal to ensure sealing reliability under low pressure.

Corrosion resistance: The copper core has good corrosion resistance to water, air, weak acid and alkali, and is especially suitable for clean fluids such as tap water and drinking water.
Good sealing: The copper surface is smooth, fits tightly with the seal, is not easy to leak, and is suitable for low-pressure (usually PN10-PN16) working conditions.
Excellent thermal conductivity: Copper has strong thermal conductivity, which can reduce the impact of medium temperature changes on valve sealing performance, and is suitable for normal temperature or medium and low temperature scenes.
Convenient installation and maintenance: Small size (mostly small diameter DN15-DN100), light weight, easy disassembly and maintenance.

A gate valve operates by using a flat gate or disc to control the flow of fluids within a pipeline. Here's a step-by-step explanation of how it works:
Valve Closed Position: In the closed position, the flat gate rests perpendicular to the flow of the fluid, effectively blocking the passage of the fluid through the valve. The gate is held in place by the valve body and is in contact with the valve seats on either side to provide a tight seal.
Valve Opening: To open the valve, an operator or automated system applies force to the gate, moving it along its path of travel away from the valve seats. As the gate moves, the fluid is allowed to flow through the valve, following the open pathway created by the gate.
Fluid Flow: With the gate in the open position, fluid flows freely through the valve with minimal obstruction. The full bore design of many flat gate valves ensures that the internal diameter of the valve matches that of the pipeline, minimizing pressure drop and maximizing flow capacity.
Valve Closing: To close the valve, the gate is moved back into its perpendicular position, effectively blocking the flow of fluid through the valve. The gate returns to its closed position by the force of gravity or through the use of external mechanisms such as actuators or hand-operated mechanisms.

Pressure level: Applicable to low-pressure systems (generally ≤1.6MPa), high-pressure scenarios should be used with caution.
Medium compatibility: Avoid using highly corrosive (such as strong acid, strong alkali) or high-temperature (usually ≤120ºC) media to prevent the copper core from being corroded or aged.
Specification matching: Select according to the nominal diameter (DN) of the pipe and the connection method (internal thread, flange), the common caliber is DN15-DN100.

 

 

Manufacture Standard Of Gate Valve	API 600 ASME B16.34 / KS B2361 / GB/T 12234 / DIN 3352
Valve Connection	Flanged
Connection Type	ANSI, JIS, DIN, GB
Valve Material	CF8, CF8M, WCB
Power Supply	General: 3-phase 380VAC Special: 3-phase AC660V, AC440V, AC415V Special: 1-phase AC220V, AC110V Special: DC12V, DC24V, DC48V
Torque Range	50Nm to 10,000Nm
Protection Class	IP65
Insulation Class	F Class
Ambient Temperature	-4°F to 140°F