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Globe Valves Usage, Advantages, Disadvatages
Blog, Valves Study,

Globe Valves Usage, Advantages, Disadvatages

Uasges of globe valves:  The globe valve is different from the ball valve, it is a valve used to adjust the flow in the pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally spherical body. Globe valves are named for their spherical body shape with the two […]

Oct.29.2020
Pneumatic Control Valve Usage and Application
Blog, Valves Study,

Pneumatic Control Valve Usage and Application

Pneumatic control valve usage introduction: Pneumatic control valve is one of industrial process control instruments widely used in petroleum, chemical, electric power, metallurgy and other industrial enterprises. According to the working principle of the pneumatic control valve, compressed air is used as the power source, the cylinder is the actuator, and the valve is driven […]

Oct.28.2020
Gate Valves Structure Features
Blog, Valves Study,

Gate Valves Structure Features

Gate valves features: Low fluid resistance, Widely applicable pressure and temperature range, etc. Small external force required for opening and closing. Medium flow direction is not restricted. Simple body shape, and high performance casting It is one of the most commonly used cut-off valves, used to cut off or connect the medium in the pipeline. […]

Oct.27.2020
How to Protect Electric Actuators from Corrosion
Blog, Valves Study,

How to Protect Electric Actuators from Corrosion

COVNA, as a professional electric actuators manufacturer over 20 years, including: Modulating electric actuators: Adjust open/close angle from 0 to 90 degree. AC/DC power supply, signal control and manual override. High torque up to 4000Nm. On/off type electric actuators: 0 degree rotation. AC/DC power supply, signal control and manual override. High torque up to 4000Nm. Intelligence electric […]

Oct.26.2020
Electric Actuator Introduction
Blog, Valves Study,

Electric Actuator Introduction

Electric actuators and pneumatic actuators, are an important part of the control system. It receives the 4-20mA or 0-10mA DC current signal from the controller, and converts it into the corresponding angular displacement or linear displacement, to manipulate the valve, baffle and other control mechanisms to achieve automatic control.     Electric actuators are available […]

Oct.23.2020
Selection Of Pneumatic Actuator
Blog, Valves Study,

Selection Of Pneumatic Actuator

1. How to select pneumatic actuator? In modern working conditions, the use of pneumatic actuated on-off valves instead of manual valves can greatly improve the production efficiency of its products and the safety of production equipment. Regarding the selection of pneumatic actuated valves in the production of polyethylene products, we will introduce the selection of […]

Oct.22.2020

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