Electronic Expansion Valves

Electronic Expansion Valves

LPF series Electronic Expansion Valves are especially designed for use in refrigeration systems. Thanks to the soft-sealing seat design, it can be as tight as a solenoid valve once it is completely shutoff thus to prevent liquid refrigerant migrate to evaporator or compressor.

Description

LPF series Electronic Expansion Valves

 

LPF series Electronic Expansion Valves are especially designed for use in refrigeration systems. Thanks to the soft-sealing seat design, it can be as tight as a solenoid valve once it is completely shutoff thus to prevent liquid refrigerant migrate to evaporator or compressor.

 

 

Products Description

 

Brand: SANHUA
Type: LPF series Electronic Expansion Valves
Model: LPF 24-002
P/N: 10136001502
Materail: Copper
Service: 100% Original Brand New
Origin of place: China
Net weight: 52.1 g
Warranty: 1 Year
Certification: CE

 

Electronic Expansion Valves

 

 

Features

 

• EXTREMELY HIGH INTERNAL TIGHTNESS, WHICH IS AS GOOD AS WITH SOLENOID VALVES(<1ML/MIN)

• EQUAL PERCENTAGE FLOW DESIGN FOR BETTER FLOW REGULATION

• SNAP-ON COIL FOR EASIER INSTALLATION

• COIL WITH IP67 WORKS SAFELY IN EXTREMELY ENVIRONMENT

• APPLICABLE FOR OIL-FREE SYSTEM

• BUILT-IN STRAINER AT INLET

• FLOW DIRECTION: UNI-FLOW

• LPF...D :60BAR DESIGN FOR R744 REFRIGERANT

 

 

Electrical Parameters 

 

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

• Excitation mode: 1 - 2 phase excitation, uni-polar actuation

• Excitation rate: 30 - 90pps• Full stroke time:6s@ 90pps

• Coilcurrent: 260mA/phase (20°)

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

• Insulation class of coil: E

• Protection class: IP 67

• Compatible with Sanhua controller SEC series

 

 

General Characteristics

 

Condition 1: Tc/Te/Sc/SH: 45oC/-10oC/2K/6K (0oC/-20oC/2K/6K for R744)

Valve Model SeatØ
[mm]

Kv

[m3/h]

Nominal Cooling Capacity [kW]
R134a R404A R407F R448A R449A R450A R452A R513A
LPF08 0.8 0.025 2.23 1.96 3.15 2.82 2.76 1.94 2.07

1.84

LPF08D
LPF10 1.0 0.04 3.64 3.2 5.14 4.60 4.49 3.16 3.37 3
LPF10D
LPF14 1.4 0.08 6.90 6.08 9.75 8.7 8.51 6 6.39 5.69
LPF14D
LPF18 1.8 0.12 9.53 8.4 13.47 12 11.76 8.29 8.83 7.86
LPF18D
LPF24 2.4 0.2 13.04 11.5 18.43 16.45 16.09 11.34 12.1 10.75
LPF24D

 

Valve Model

SeatØ
[mm]

Kv

[m3/h]

Nominal Cooling Capacity [kW]
R454B R454C R455A R1234uf R1234ze R290 R410A R744
LPF08 0.8 0.025 4.0 2.41 2.62 1.57 1.72 3.0 3.43

4.7

LPF08D
LPF10 1.0 0.04 6.52 3.93 4.27 2.55 2.81 4.87 5.6 7.6
LPF10D
LPF14 1.4 0.08 12.36 7.45 8.10 4.84 5.32 9.23 10.6 14.4
LPF14D
LPF18 1.8 0.12 17.08 10.3 11.2 6.69 7.36 12.7 14.64 19.9
LPF18D
LPF24 2.4 0.2 23.37 14.1 15.32 9.16 10.07 17.3 20.0 27.2
LPF24D

 

Note : The Max capacity is given for full opened position LPF... is standard series, LPF...D is designed for Co2 application

 

valve

 

 

 

Dimensions

 

 

SANHUA

 

Valve Model U11 Code Multi-Pack Dimensions

Weight

(g)

Øe inlet Ød outlet
LPF08-001/ LPF08D-001 10136003202/ 10136003702 3/8 1/2 51.2
LPF08-002/LPF18D-002 10136003302/ 10136003802 1/4 1/4
LPF10-002/ LPF10D-002 10136000502/ 10136002002 3/8 1/2
LPF10-003/ LPF10D-003 10136000602/ 10136002102 1/4 3/8
LPF14-002/ LPF14D-002 10136000902/ 10136002402 3/8 1/2
LPF14-003/ LPF14D-003 10136001002/ 10136002502 1/4 3/8
LPF18-002/ LPF18D-002 10136001302/ 10136002802 3/8 1/2
LPF24-002/ LPF24D-002 10136001502/ 10136003002 3/8 1/2

 

The coil is separated

(Unit is mm)

 

 

What is Electronic expansion valves?

 

Electronic expansion valves (EEVs) are devices used in refrigeration and air conditioning systems to control the flow of refrigerant into the evaporator. An EEV is a type of metering device that uses an electronic controller to adjust the valve opening based on system requirements.

An EEV consists of a valve body, a powerhead assembly, and an electronic controller. The valve body contains a movable piston that adjusts the size of the opening through which refrigerant flows. The powerhead assembly contains a stepper motor that moves the piston, and the electronic controller monitors system conditions and adjusts the motor to maintain the desired evaporator pressure.

The electronic controller receives input from temperature and pressure sensors in the system, as well as from the system control board. The controller then uses this information to determine the required valve opening, and sends a signal to the powerhead to adjust the piston position accordingly.

EEVs offer several advantages over traditional mechanical expansion valves (MXVs), including greater accuracy, faster response time, and the ability to adjust to changing conditions in real-time. This makes them particularly useful in systems with varying loads or operating conditions, as they can adjust the refrigerant flow to match the system requirements, resulting in improved energy efficiency and performance.

 

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