What Is An Electric Valve? Introduction To Operating Principle

Simply put, an electric valve is a valve unit controlled by an electric actuator to realize valve opening and closing. Its complete assembly consists of two main parts: the upper electric actuator and the lower valve body.

1. Classification and Working Principle of Electric Valves

Electric valves are mainly divided into two categories: quarter‑turn electric valves and linear‑stroke electric valves:

• Quarter‑turn electric valve: Matched with quarter‑turn electric actuator to achieve 90‑degree rotation for media on‑off control in pipelines;

• Linear‑stroke electric valve: Equipped with linear‑stroke electric actuator. The valve disc moves up and down to open or shut off pipeline media flow.

An electric valve is assembled and commissioned from an electric actuator plus a valve body. It takes electric energy as power source. Once powered on, the actuator drives the valve body to complete opening, closing or modulating actions, so as to realize pipeline media shut‑off and flow regulation. It is widely adopted in highly‑automated industrial piping systems.

2. Relationship Between Electric Valves and Solenoid Valves

The solenoid valve is one subset of electric valves. When energized, its electromagnetic coil generates magnetic force to pull the spool and switch flow‑passage status. When power cuts off, spring force resets the spool to change the on‑off state.

3. About Us

Shenzhen Juchang Precision Co., Ltd. is located in Pingshan District, Shenzhen. It is a high‑tech enterprise focusing on R&D, manufacturing and precision machining of high‑end precision ceramic pumps, ceramic plunger pumps, ceramic filling pumps, ceramic injection pumps, as well as alumina and zirconia precision ceramic parts. Equipped with full‑set core manufacturing equipment for isostatic pressing, high‑temperature sintering, 5‑axis CNC machining and mirror polishing, we solve challenging fluid‑transport tasks featuring strong corrosion, heavy abrasion, high cleanliness and ultra‑high precision. Our products serve high‑end industrial sectors including lithium‑ion new‑energy, pharmaceutical & medical, semiconductor, fine chemicals and environmental water‑treatment. We supply both standard products and customized one‑stop fluid‑control solutions.

Product Advantages

• Ultra‑high dimensional accuracy: Machining tolerance up to ±0.001 mm, ceramic mirror‑polishing Ra ≤0.025 μm. Stable fitting clearance supports long‑term zero‑leakage performance;

• Excellent corrosion resistance without ion leaching: High‑purity zirconia / alumina ceramics deliver superior chemical inertness against strong acids and alkalis, with zero‑metal‑ion release to satisfy high‑cleanliness requirements for pharmaceutical and lithium‑battery applications;

• Extended service life with high wear‑resistance: High‑hardness ceramic resists abrasion and aging, greatly extending component lifespan compared with metal alternatives and lowering equipment‑maintenance expenses;

• End‑to‑end customization capability: Customizable material grade, flow capacity and mechanical dimensions. One‑stop delivery covering material formulation, component machining and final assembly;

• Rigorous quality‑control system: Complete precision‑testing instruments are deployed. Every production batch undergoes performance inspection to guarantee consistent product quality.

Read more technical articles and product solutions for industrial valves and fluid‑control systems, please visit our official website: https://www.zhmidi.com/