Expansion valve DPFAA3.0

Expansion valve DPFAA3.0

Description

3.0DPFAA3.0 expansion valve is a valve with a restricted passage section, intended for throttling and regulating the flow of refrigerant to the evaporator depending on the thermal load.

To control the ERV, a controller is required, as well as a power supply for the valve's stepper motor.

The controller's input signals are readings from pressure and temperature sensors installed on the aspiration pipe.

The evaporating pressure measured by the sensor corresponds to the evaporating temperature. The temperature signals indicate the superheat temperature of the refrigerant at the evaporator outlet.

The EEV controller determines the superheat value as the difference between the superheat temperature and the evaporation temperature.

For correct and safe operation, the superheat value must be between 7–10 °C.

The controller compares the current superheat value with the set value and sends the corresponding control signal: to open the valve to reduce superheat.

Expansion valve DPFAA3.0 regulates the thermal power from 21.6 to 47.5 kW (depending on the refrigerant). For consultations, contact +37369104125.

Expansion valve DPFAA3.0 is intended for use in systems reversible heat pumps. Expansion valve DPFAA3.0 automatically regulates the refrigerant flow and ensures the system operates in optimal conditions for rapid cooling or heating, precise temperature control and energy saving. Also, the Expansion Valve DPFAA3.0 can be used, for example, to control the pressure in the suction line. Expansion valve DPFAA3.0 allows bidirectional operation for managing refrigerant flow in heating or cooling mode.

Expansion valve DPFAA3.0. Technical characteristics

Compatible refrigerant (Expansion valve DPFAA3.0)	R22, R410A, R407C, R32, R134A, R404A, R507C etc.
Average temperature	From -30°C to +70°C.
Environmental temperature	From -30°C to +60°C.
Relative humidity	From 0% to 95% relative humidity.
Coil voltage	12V DC (±10%), square wave
Coil current	260 mA/phase (at 20°C)
Coil resistance	46±3.7 Ω/phase (at 20°C)
Coil insulation class	AND
Coil protection class	IP67
Excitation mode	Phase 1 to 2 excitation, single-phase switching
Excitation speed	from 30 to 90 pulses/sec.
Maintaining the excitation mode at shutdown	From 0.1 to 1 sec
Minimum movement time from fully open to fully closed	5.8 sec (with 90 pulses/sec.)

Expansion valve DPFAA3.0. Specifications table

Model	Nominal cooling capacity (kW). Max pressure 43 bar, working 35 bar					Debit, (m3/h)
	R22	R407C	R410A	R32	R134A
DPF(AA) 0.6A	0.7	0.7	0.8	1.2	0.5	0.01
DPF(AA) 0.8A	1.2	1.3	1.4	2.1	0.9	0.017
DPF(AA) 1.0A	2.7	2.8	3.1	4.6	2.1	0.025
DPF(AA) 1.3A	5.3	5.7	6.2	9.2	4.2	0.05
DPF(AA) 1.6A	9.0	9.5	10.5	15.5	7.0	0.08
DPF(AA) 1.8A	10.6	11.3	12.5	18.4	8.3	0.1
DPF(AA) 2.0A	13.2	14.0	15.4	22.8	10.3	0.16
DPF(AA) 2.2A	14.2	15.1	16.6	24.5	11.1	0.2
DPF(AA) 2.4A	16.7	17.7	19.5	28.8	13.0	0.23
DPF(AA) 3.0A	27.6	29.4	32.3	47.7	21.6	0.39
DPF(AA) 3.2A	30.4	32.4	35.6	52.6	23.8	0.43
DPF(AA) 4.0B	50.6	53.8	59.2	87.5	39.5	0.5
DPF(AA) 4.5B	67.7	72.0	79.2	117.0	52.9	0.7

Expansion valve DPFAA3.0. Dimensions

Model	Hole size, (mm)	Size, (mm)
		F	G	H	φd	φN
DPF(AA) 0.6A	0.6	80	36	30	6.35	17.35
DPF(AA) 0.8A	0.8
DPF(AA) 1.0A	1.0
DPF(AA) 1.3A	1.3
DPF(AA) 1.6A	1.6
DPF(AA) 1.8A	1.8
DPF(AA) 2.0A	2.0
DPF(AA) 2.2A	2.2
DPF(AA) 2.4A	2.4
DPF(AA) 3.0A	3.0	83	39	39	7.94
DPF(AA) 3.2A	3.2
DPF(AA) 4.0B	4.0	101	47	51
DPF(AA) 4.5B	4.5

Product series overview:

DPF(AA) (P1)1.0~DPF(AA) (P2)3.2 is a series of electronic expansion valves mainly used in refrigeration, air conditioning and heat pump systems to automatically regulate the refrigerant flow. This allows the system to operate under optimal conditions, ensuring rapid cooling or heating, precise temperature control and energy saving.

Product features:

1. Compact, takes up very little space: low height, small dimensions and low weight;
2. Optimized flow channel, low noise level;
3. Fast operation, low energy consumption;
4. Bidirectional regulation, used in reversible systems such as heat pumps.

Applications:

• Refrigerant used: R22, R134a, R407C, R404A, R410A, R32, R290, etc.;
• Power range: from 3.5 to 33.3 kW (nominal capacity R22);
• Average temperature: -40°C to +85°C (electrification coefficient below 50%);
• Ambient temperature: -30°C to +60°C (electrification coefficient below 50%);
• Relative humidity: below 95%;
• Full opening pulse: 500; valve opening pulse: 3220;
• Certifications: UL, VDE, CQC;
• Installation method: coil facing upwards, rotor axis perpendicular to the horizontal plane, with a deviation of ±15°. The inlet pipe is positioned horizontally and the outlet pipe is facing downwards.

Expansion valve DPFAA3.0. Electrical parameters:

• Nominal voltage: 12V DC (±10%);
• Operating mode: direct-drive permanent magnet stepper motor;
• Excitation mode: phase 1-2, unipolar polarity;
• Excitation speed: 30PPS – 40PPS;
• Excitation mode maintenance at the end: between 0.1 and 1 sec;
• Minimum movement time from fully open to fully closed: 13 sec (with 40 pulses/sec);
• Coil current: DPF(AA) 1.0~3.2, 260 mA/phase (at 20°C);
• Coil resistance: DPF(AA) 1.0~3.2, 4.6±3.7 Ω/phase (at 20°C);
• Coil insulation class: E;
• Protection rating: IP67.

✅ Recommended apps:

• Systems with air-to-water or ground-to-water heat pumps.

• Commercial and industrial HVAC installations.

• Rooftop units, chillers, VRF.

• Automated systems with Modbus / RS485 control.

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⭐ Key benefits:

• ✅ Rapid response to temperature variations

• ✅ Increasing the performance of the refrigeration system

• ✅ Reducing energy consumption

• ✅ Compressor overload protection

• ✅ Easy integration into systems with electronic controllers

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