Industrial valves · Клапаны регулирующие IMI: характеристики, принцип работы и применение
IMI Control Valves: Engineering Overview and Technical Characteristics
Engineering and Technical Analysis of IMI Control Valves
A control valve is a critically important component of pipeline fittings, designed for high-precision modulation of process medium parameters — flow, pressure, and temperature — in technological circuits. IMI Process Automation fittings, supplied by EV Group China, set the industry standard for operational reliability and durability in the most challenging operating conditions.
Key Features and Technological Advantages
- Precise Flow Control: Ensure high flow capacity (Kv) with the ability for microprocessor-based parameter adjustment for accurate dosing.
- System Pressure Stabilization: Effectively dampen hydraulic shocks and pressure fluctuations, ensuring stability of the technological process.
- Integration into APCS: Built-in intelligent actuators and positioners provide full integration into automated process control systems for remote monitoring and control.
- Ensuring Industrial Safety: Prevent damage to expensive equipment (turbines, pumps, heat exchangers) from excessive loads and abnormal operating conditions.
Specifications and Application of IMI Valve Model Range
| Valve Model | Technical Purpose |
|---|---|
| Steam Coolers | Control of cooling water injection for precise temperature control of superheated steam. A key element for protecting turbine blades and downstream equipment from thermocyclic stresses. |
| Level Control Valves | Designed for operation in waste heat boilers and steam drums under significant pressure differentials (ΔP). The design minimizes vibration and cavitation erosion of internal components. |
| Bypass Valves | Used to organize bypass lines for turbines (CHP, NPP) and pumps, discharging excess flow of the working medium to protect main equipment during startup or emergency modes. |
| Choke Valves | Specialized valves with multi-stage throttling, designed to operate with high pressure differentials, cavitating and abrasive flows. Reduce noise and vibration levels. |
The operating principle of IMI valves is based on modulating the flow area of the closure element. An integrated electric or pneumatic actuator with a positioner, receiving a command signal (e.g., 4-20 mA) from the APCS controller, precisely changes the plunger position, maintaining specified process parameters with minimal error.
Industrial Application of IMI Control Valves
- Oil and Gas Sector: Control hydrocarbon flows in oil treatment plants (OTP), compressor stations, and main pipelines.
- Energy and Heat Supply: Regulation of feedwater, high and low-pressure steam in thermal and nuclear power plants (CHP, NPP), and in centralized heat supply systems.
- Chemical and Petrochemical Industry: Precise dosing of acids, alkalis, and other corrosive media in reactors and process lines.
- Water Supply and Sewerage Systems (WSS): Maintaining stable pressure in urban water supply networks and pumping stations to prevent bursts.
Supply of IMI Control Valves from EV Group China
EV Group China organizes direct supplies of certified IMI control valves, including choke and bypass valves, as well as complex steam cooling systems. Our engineers provide qualified equipment selection in strict accordance with technical specifications and design documentation. For engineering consultation and order placement, please use the contact information on our website.