Products Description

The electric cast iron flanged three-way control valve is a high-precision automatic flow regulation device, specially designed for industrial fluid mixing and diverting systems. Adopting high-quality cast iron valve body with integral flanged connection, it features stable structure, strong pressure resistance and excellent sealing performance. Driven by a durable electric actuator, the valve realizes accurate proportional adjustment of liquid, gas and steam media. It supports two core working modes: three-way mixing (two-in-one-out) and diverting (one-in-two-out), effectively simplifying pipeline layout and reducing auxiliary valve costs. Widely applied in HVAC central air conditioning, heating exchange systems, water treatment, petrochemical and municipal industrial pipelines.
Core Features
Premium Cast Iron Body
High-strength cast iron integral casting, anti-rust, anti-deformation and shock-resistant, suitable for long-term outdoor and industrial harsh working environments, with stable mechanical performance.
01
Dual Working Modes
Optional mixing and diverting functions, flexible to balance medium temperature and flow, meeting diverse pipeline process requirements.
02
Precision Electric Regulation
Matched with high-sensitivity electric actuator, supports 4-20mA / 0-10V standard control signal, achieving linear and equal percentage flow adjustment with high control accuracy.
03
Manual & Electric Dual Use
Equipped with manual override device, ensuring emergency operation when power fails, improving system safety and stability.
04
Technical Specifications
|
Body Material |
High-strength Cast Iron |
Working Medium |
Water, steam, air, weak corrosive fluid |
|
Nominal Diameter |
DN20 - DN300 |
Working Temperature |
-20℃ ~ 350℃ |
|
Pressure Rating |
PN16, PN25, PN40 |
Connection Type |
Standard Flanged |
|
Control Signal |
4-20mA / 0-10VDC |
Flow Characteristic |
Linear / Equal Percentage |
|
Power Supply |
220VAC / 24VDC |
Working Mode |
Mixing / Diverting |
Application Scenarios
Central air conditioning HVAC system, heat exchanger temperature control, industrial circulating water system, petrochemical engineering, water treatment equipment, municipal heating pipeline, pharmaceutical and food processing fluid regulation systems.

FAQ
Q: What is the difference between mixing type and diverting type three-way valve?
A: The mixing valve adopts two-in-one-out structure for mixing two different media; the diverting valve is one-in-two-out structure for dividing one medium into two pipelines. Please confirm the working mode before ordering.
Q: What control signals does this electric valve support?
A: It supports mainstream 4-20mA current signal and 0-10V voltage signal, compatible with most industrial PLC and automatic control systems to realize precise flow regulation.
Q: Is manual operation available during power failure?
A: Yes. All valves are equipped with a manual override mechanism. Staff can manually open and close the valve to ensure normal pipeline operation in case of power failure or electrical failure.
Q: What media can this cast iron three-way valve control?
A: It is suitable for conventional media such as water, hot water, steam and air. It is recommended to choose stainless steel valves for strong corrosive media to avoid body corrosion.
Q: Can I customize the pressure grade and size?
A: Yes. We support customized caliber, pressure rating, flange standard and actuator parameters to meet special industrial pipeline requirements.
Q: Does the valve have leakage problems after long-term use?
A: Adopting high-precision matching sealing structure and wear-resistant sealing materials. Strict factory pressure testing ensures zero leakage under rated pressure, with stable long-term sealing performance.
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