Motorized Valve – Electric Gate Valve

Description

Multi-Turn Motorized Valve: Multi-turn actuator is specially designed for all multi-turn valve applications (linear motion valves), such as globe valves, gate valves, etc.

What is Motorized Valve:

A motorized valve is a valve type that uses an electric motor to open or close its mechanism. This type of valve is ideally suited to very large valve types or remote fluid control applications such as aircraft deicing, agricultural irrigation, and automated fire suppression. Most valve types are suited for motorized applications with some commonly used types being a gate, ball, and butterfly. The motorized valve is also well suited to remote flow control applications where system inputs involve incremental valve operation. The internal fluid control mechanisms of motorized valves are generally identical to their manual counterparts; valve actuation inputs are the only difference between the two.

ZECO electric gate valve is named according to the driving mode,  motorized gate valve as the name suggests is driven by an electric actuated gate valve. The electric gate valve designed by ZECO is in line with the SIL 3 Safety and Integrity Level for Automated Valves. ZECO Valve Group uses modern machinery and the latemolduld to produce the latest advanced manufacturing facilities, to provide users with the highest quality flow control products, and a very competitive price. All cast parts, especially body and bonnet, have heavy sections to ensure strength, durability, and reliable and safe use in a wide range of service environments. Steel alloys for body and bonnet are carefully selected for good casting quality, structural stability, mechanical strain,gth, and safe weldability. Castings are cast under strict and critical metallurgical and laboratory supervision. They are heat-treated, thoroughly cleaned by standing spray and carefully checked to ensure that they are free from defects. All castings of these valves are by appropriate ASTM standards.

How does a Motorized Valve work?

Motorized Valve is a power supply to drive the motor rotation, thus opening or closing the valve of a device, and withstanding voltage shocks. The rotating range of the electric valve is adjustable. The rotating range can be adjusted by inputting the specified current and voltage signals. The general control signals are: current signal (4 ~ 20mA, 0 ~ 10mA) or voltage signal (0 ~ 5V, 1 ~ 5V).

Application of Motorized Valves

Motorized valves typically feature an electric motor that drives an advanced mechanism through a gear train to open or close them. The particular advanced mechanism depends on the type of valve. Vertical travel valves such as gate or sluice valves usually use a lead screw mechanism that lifts or drops the gate plate and are usually found in larger systems such as water mains. Globe valves also use a screw advance mechanism to position the tapered plug which controls the fluid flow in high precision metering applications.

Features of Motorized Valves:

• ZECO electric gate valve can be operated remotely and the user can operate and check the valve status in the control room. It reduces the waste of personnel needed to run to the site to close gate valves without electric actuators and also reduces the situation that valves cannot be closed in dangerous situations;
• ZECO electric gate valve can be customized asbestos-free packing or graphite packing;
• ZECO electric gate valve will fix the electric actuator in the transportation process to prevent the damage to the electric actuator caused by the bump in the transportation process;
• Low torque of ZECO electric gate valve can reduce the cost of the electric actuator.

Material of Electric Gate Valve:

No	Part	Material
1	Body	ASTM A351 CF8
2	Seat Ring	ASTM A182 F304 + 13Cr
3	Wedge	ASTM A351 CF8 + 13Cr
4	Stem	ASTM A182 304
5	Bonnet Gasket	Graphite + SS304
6	Bonnet Bolt	ASTM A193 B8
7	Bonnet Nut	ASTM A194 8
8	Bonnet	ASTM A351 CF8
9	Backseat	ASTM A182 304
10	Stem Packing	Reinforced Graphite
11	Motorized Actuator	ASTM A351 CF8