Supapă de expansiune DPFAA1.0

Expansion valve DPFAA1.0

Description DPF1.0 expansion valve este un supapă cu secțiune de trecere restrânsă, destinată pentru throttling și reglarea fluxului de agent frigorific către evaporator în funcție de sarcina termică. Pentru controlul ERV este necesar un controler, precum și o sursă de alimentare pentru motorul pas cu pas al ventilului. Semnalele de intrare ale controlerului sunt citiri ale senzorilor de presiune și temperatură instalați pe conducta de aspiration. Presiunea de evaporare măsurată de senzor corespunde temperaturii de evaporare. Semnalele de temperatură indică temperatura de super-încălzire a agentului frigorific la ieșirea din evaporator. Controlerul EEV determină valoarea de super-încălzire ca diferența dintre temperatura de super-încălzire și temperatura de evaporare. Pentru funcționare corectă și sigură, valoarea super-încălzirii trebuie să fie între 7–10 °C. Controlerul compară valoarea actuală a super-încălzirii cu valoarea setată și trimite semnalul de control corespunzător: pentru deschiderea supapei pentru reducerea super-încălzirii. Supapa de expansiune DPFAA1.0 reglează puterea termică de la 2.1 la 4.6 kW (deăinde de agentul frigorific. For consultations, contact +37369104125. DPF1.0 expansion valve is intended for use in systems reversible heat pumps. Expansion valve DPFAA1.0 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 DPFAA1.0 can be used, for example, to control the pressure in the suction line. Expansion valve DPFAA1.0 allows bidirectional operation for managing refrigerant flow in heating or cooling mode.

Expansion valve DPFAA1.0. Technical characteristics

Compatible refrigerant (Expansion valve DPFAA1.0)	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 DPFAA1.0. 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 DPFAA1.0. 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 DPFAA1.0. 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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