Categories
Electronic Expansion Valves
Our electronic expansion valves provide precise refrigerant flow control in HVAC and refrigeration systems. These advanced components automatically regulate refrigerant flow based on system conditions, optimizing system performance and energy efficiency. Available in various configurations to meet specific requirements for commercial refrigeration, industrial cooling, heat pumps, and air conditioning applications.
Stepper Motor Valves
Precision-controlled valves that use stepper motors for exact positioning. Ideal for applications requiring precise refrigerant flow control, offering superior efficiency and temperature stability for commercial and industrial refrigeration systems.
PWM Valves
Pulse width modulation valves that control refrigerant flow through rapid cycling. Perfect for applications requiring responsive flow control and system stability, such as variable refrigerant flow systems and heat pumps with fluctuating loads.
Thermostatic Valves
Traditional expansion valves that use temperature-sensing bulbs for mechanical control. Reliable and cost-effective solution for standard refrigeration applications where electronic control is not required but consistent performance is essential.
Product Categories
Industrial Valves
High-capacity electronic expansion valves designed for industrial refrigeration systems, process cooling, and large commercial applications. Features robust construction, high pressure ratings, and compatibility with industrial control systems.
View ProductsCommercial Valves
Medium-capacity electronic expansion valves for commercial refrigeration, supermarket display cases, and packaged air conditioning units. Offers excellent modulation capabilities, energy efficiency, and integration with building management systems.
View ProductsResidential Valves
Compact electronic expansion valves for residential air conditioning systems, heat pumps, and small refrigeration units. Designed for quiet operation, reliability, and cost-effectiveness while maintaining precise temperature control.
View ProductsSpecialty Valves
Specialized electronic expansion valves for unique applications such as transport refrigeration, marine systems, medical cooling, and laboratory equipment. Engineered for specific operating conditions, refrigerants, and environmental requirements.
View ProductsApplications
HVAC Systems
Precise control for variable refrigerant flow systems, chillers, and rooftop units, optimizing cooling performance and energy efficiency.
Refrigeration Units
Reliable operation for commercial refrigeration, food storage, supermarket display cases, and industrial cold storage facilities.
Heat Pumps
Efficient refrigerant control for residential and commercial heat pumps, ensuring optimal heating and cooling performance year-round.
Process Cooling
Precise temperature control for industrial process cooling, data centers, medical equipment, and laboratory applications.
Key Features
Precise Flow Control
Electronic expansion valves provide exact refrigerant flow modulation with up to 2000 steps of control, maintaining optimal superheat levels and system efficiency across varying load conditions.
Energy Efficiency
Advanced control algorithms continuously optimize refrigerant flow, reducing energy consumption by up to 30% compared to traditional mechanical expansion devices while improving system performance.
Smart Integration
Seamlessly connects with system controllers, building automation systems, and IoT platforms for remote monitoring, diagnostics, and adaptive control based on real-time operating conditions.
Technical Specifications Comparison
| Feature | Stepper Motor Valves | PWM Valves | Thermostatic Valves |
|---|---|---|---|
| Control Method | Precise step positioning | Duty cycle modulation | Mechanical/thermal |
| Control Resolution | 500-2000 steps | 0-100% duty cycle | Limited (mechanical) |
| Capacity Range | 0.5 kW - 100+ kW | 1 kW - 50 kW | 0.5 kW - 70 kW |
| Response Time | Medium (seconds) | Fast (milliseconds) | Slow (minutes) |
| Power Requirements | 12-24V DC | 12-24V DC | None (passive) |
| Refrigerant Compatibility | R410A, R404A, R134a, R32, R1234ze, R744, R717 | R410A, R404A, R134a, R32 | R410A, R404A, R134a, R22 |
| Typical Applications | Precision cooling, VRF, Industrial | Heat pumps, Residential AC | Standard refrigeration, Budget systems |
| Relative Cost | Higher | Medium | Lower |
Popular EEV Products
Danfoss ETS 6
High-performance electronic expansion valve with stepper motor for precise refrigerant control in commercial refrigeration
Emerson EX Series
Versatile electronic expansion valve with integrated controller for supermarket refrigeration and display cases
Sanhua DPF Series
Compact PWM electronic expansion valve designed for heat pumps and residential air conditioning systems
Sporlan SEI Series
Reliable electronic expansion valve with bipolar stepper motor for commercial air conditioning and process cooling
Benefits & Applications
Key Benefits
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Energy efficiency: Reduces power consumption by optimizing refrigerant flow
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Precise temperature control: Maintains stable temperatures with minimal fluctuation
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Wide capacity modulation: Handles varying loads from 10% to 100% of capacity
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System protection: Prevents liquid slugging and compressor damage
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Advanced control capabilities: Integrates with digital control systems
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Refrigerant compatibility: Works with traditional and new low-GWP refrigerants
Common Applications
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Commercial refrigeration: Supermarkets, food service, display cases
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Residential HVAC: Heat pumps, air conditioners, mini-splits
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Industrial cooling: Process chillers, cold storage, manufacturing
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Data centers: Precision cooling for IT equipment and server rooms
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Medical: Laboratory equipment, pharmaceutical storage, medical imaging
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Transport: Refrigerated trucks, shipping containers, mobile cooling
Technical Resources
Downloads
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EEV Selection Guide
Complete guide to choosing the right electronic expansion valve
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Installation Guidelines
Technical instructions for proper EEV installation
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Specification Sheets
Detailed technical specifications for all EEV models
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Troubleshooting Guide
Common issues and solutions for electronic expansion valves
Top EEV Manufacturers
Stepper Motor Valves
View AllStepper motor electronic expansion valves provide precise refrigerant flow control through exact positioning of the valve pin. These valves use a stepper motor that can move in discrete steps (typically 500-2000 steps) to achieve very precise flow modulation. Our stepper motor EEV products feature high resolution control, excellent repeatability, and compatibility with a wide range of refrigerants and system capacities.
Danfoss ETS 6
High-performance electronic expansion valve with stepper motor for precise refrigerant control in commercial refrigeration
Emerson EX Series
Versatile electronic expansion valve with integrated controller for supermarket refrigeration and display cases
Sporlan SEI Series
Reliable electronic expansion valve with bipolar stepper motor for commercial air conditioning and process cooling
PWM Valves
View AllPulse width modulation (PWM) electronic expansion valves control refrigerant flow through rapid cycling of the valve between open and closed positions. The duty cycle (percentage of time the valve is open) determines the effective flow rate. These valves offer fast response times and are particularly well-suited for residential air conditioning, heat pumps, and applications with variable loads. Our PWM valve products feature reliable solenoid operation, compact designs, and compatibility with standard PWM controllers.
Sanhua DPF Series
Compact PWM electronic expansion valve designed for heat pumps and residential air conditioning systems
Carel E2V-P Series
Efficient PWM electronic expansion valve with integrated driver for variable refrigerant flow systems and heat pumps
Parker PWM Series
Durable PWM electronic expansion valve with high-frequency response for precise refrigerant control in commercial applications
Thermostatic Expansion Valves
View AllThermostatic expansion valves (TXVs) are mechanical valves that use a temperature-sensing bulb and diaphragm to control refrigerant flow. While not electronically controlled like stepper motor or PWM valves, they remain popular for many standard refrigeration applications due to their reliability, simplicity, and cost-effectiveness. Our thermostatic expansion valve products feature robust construction, field-adjustable superheat settings, and compatibility with a wide range of refrigerants.
Danfoss T2/TE2
Reliable thermostatic expansion valve with external equalizer for medium-temperature refrigeration applications
Sporlan VE Series
Field-adjustable thermostatic expansion valve with balanced port design for commercial refrigeration systems
Emerson EX4/EX5
Heavy-duty thermostatic expansion valve with stainless steel components for industrial refrigeration applications
Need Technical Support?
Our refrigeration specialists can help you select the right electronic expansion valve, optimize your system performance, and ensure maximum efficiency for your specific application.
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