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LPF series electronic expansion valve

The LPF series electronic expansion valve is mainly used in refrigeration systems to realize the automatic adjustment of refrigerant flow. When the LPF series electronic expansion valve is completely closed, the internal leakage of the system is less than 1 ml/min, and the effect is equivalent to that of a solenoid valve. Therefore, the use of LPF series electronic expansion valve in freezing and cold storage can completely replace the solenoid valve, saving installation space and cost.

Keywords:

LPF series electronic expansion valve

Classification:

Sanhua Electronic Expansion Valve

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Product Details

Features

• Two-way flow, the flow rate is like a solenoid valve when the valve is closed <1ml/min

•Small installation space: low height, small size, light weight

• Optimized runner, lower noise

•Fast action, energy saving and high efficiency

• LPF series can be applied to oil-free systems

•Suitable for Sanhua SEC series controller

 

General specifications

•Suitable for all commonly used HCFC and HFC refrigerants such as: R22, R134a, R404A, R407C, R410A, R507A, etc.

• Fully open pulse: 500; open valve pulse: 32 ± 20

•Medium temperature: -40°C-+70°C (power rate below 40%)

• Ambient temperature: -40C-+60C (power rate below 40%)

•Relative humidity: below 95% RH

•Maximum working pressure: 4.2MPa, maximum working pressure difference: 3.5MPa

•Installation method:

    -The coil faces upwards, the center axis of the valve body rotor is perpendicular to the horizontal plane, and the deviation is at soil 15. Within

    -The inlet pipe is placed horizontally, the outlet pipe is downward

 

Electrical parameters

• Rated voltage: 12V DC (± 10%), rectangular wave

• Action mode: 4-phase 8-shot permanent magnet stepping motor, direct-acting

• Excitation mode: 1 ~ 2 phase excitation, unipolar drive

• Excitation speed: 30-90pps

• End the excitation mode and keep 0.1-1.0S

•Minimum action time from fully open to fully closed: 6s

• Coil current: 260mA/phase (20C)

• Coil resistance: 46 ± 3.7 Q/phase (20C)

•Coil insulation class: E

•Protection level: IP67

 

 

 

 

 

 

 

 

 

 

 

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