Zhejiang Sanhua DPF Series Electronic Expansion Valve for Refrigeration and Heat Pump

• Application: Commercial
• Certification: UL, ISO9001, CE
• Type: Valve
• Transport Package: Carton
• Specification: electronic type
• Trademark: Sanhua
• Model NO.: DPF
• Origin: Zhejiang
• HS Code: 8481901000
• Production Capacity: 50000PCS/Month

Product Description

Zhejiang Sanhua DPF series Electronic Expansion Valve for Refrigeration and Heat Pump

Product Description:
T/S series electronic expansion valves are designed for usage in air conditioning and refigeration systems or in heat pumps. The valve supports automatic adjustment of refrigerant flow rate and makes the system work under optimized conditions for the purpose of fast cooling or heating, precise temperature control and energy saving. The valve can also be sued e.g. for suction line pressure controls. These valves provide bidirectional operation to control the refrigerant flow rate in the heating or cooling mode.


Features: 
• Applicable for oil-free system(T series);
• Smaller installation space: low height,small volume, light weight;
• Optimized flow path design for noise reduction;
• Fast operation, energy saving;
• Applicable for reversible systems like heat pumps: bidirectional flow;

GENERAL SPECIFICATIONS

• Applicable for all common HFC, HFO refrigerants such as: R134a, R404A, R407A/F, R407C, R410A, R448A, R449A, R450A, R452A, R513A, R507A1)

• Cooling capacity: 3,5 to 105 kW (R22 nominal capacity)

• 500 steps (full stroke); 32 ± 20 opening steps

• Medium temperature TS min./max.: -30°C /+70°C (duty cycle rate below 50%)

• Ambient temperature min./max.: -30°C / +60°C (duty cycle rate below 50%)

• Relative humidity: : 0 to 95% RH • Installation position:

  - Coil installed in the upwards position, valve rotor central axis within ±15° versus vertical axis

  - Inlet connection preferably sidewise, outlet preferably downwards

• Certifications: UL/CSA and declaration according to LVD or PED
  
  Note: 1) Flammable refrigerants like R32, R290, R1234ze(E), R1234yf on request
   

ELECTRICAL PARAMETERS

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

• Actuating mode: 4-phase 8-step permanent magnet stepping motor of direct-acting type

• Excitation mode: 1 ~ 2 phase excitation, monopole actuation

•  Excitation rate:
- Seat Ø 1,3 to 3,2 mm: 30 to 90pps

- Seat Ø 4,0 to 6,5 mm: 30 to 40pps

• Activation of self-holding mechanism: Maintain excitation in stop position min. 0,1~1,0 sec.

• Min. motion time from completely open to completely closed: - Seat Ø 1,3 to 3,2 mm: 6s @ 90pps

- Seat Ø 4,0 to 6,5 mm: 13s @ 40pps

• Coil current:
- Seat Ø 1,3 to 3,2 mm: 260mA/phase (20°C) - Seat Ø 4,0 to 6,5 mm: 375mA/phase (20°C)

• Coil resistance:
- Seat Ø 1,3 to 3,2 mm: 46 ± 3.7 Ω/phase (20°C) - Seat Ø 4,0 to 6,5 mm: 32 ± 3.2 Ω/phase (20°C)

• Insulation class of coil: E • Protection class: IP 67