Danfoss 034G2858 Electric Regulating Valve – KVS 42, 7/8 inch Solder ODF, R22, R134a, R404A

The Danfoss 034G2858 electric regulating valve (KVS 42) is designed for advanced HVAC and refrigeration systems requiring high capacity and precise flow control. This model includes a balanced port, bi-flow capability, and is compatible with a wide range of refrigerants including R22, R134a, and R404A.

Key Features

• Refrigerant compatibility: R22, R134a, R404A, R407A, R407C, R407F, R410A, R422B, R422D, R438A, R448A, R449A, R450A, R452A, R507A, R513A, R1234ze(E)
• Rated capacity: 40.4 kW (11.4 tons) with R22, 29.3 kW (8.3 tons) with R134a, 35.3 kW (10 tons) with R404A
• Temperature range: -40 F to 150 F
• Connections: 7/8 inch Solder ODF inlet × 7/8 inch Solder ODF outlet
• Valve type: Straightway, externally equalized, bi-flow
• Capillary tube: Not applicable
• Maximum working pressure: 493 psig
• Flow time speed: 12.7 to 25.4 seconds
• Enclosure rating: IP67
• Electrical connection: M12, 4-pin male, step motor (bi-polar), 11.5V to 13.8V DC
• Resistance: 0.1 kOhm
• Compatible controllers: EKC 368, EKE 1A, EKE 1B, EKE 1C
• Balanced port: Yes

Applications

Perfect for medium to large refrigeration units, supermarket display systems, and cold storage solutions that require electronically controlled expansion valves with support for multiple refrigerants.

Competitor Equivalent Part Numbers

• Alco EX6-04-R22
• Sporlan SEH-30
• Emerson EXV-30-404A

Frequently Asked Questions

• What refrigerants are compatible with the 034G2858 valve?
  This model supports traditional refrigerants like R22, R134a, R404A as well as low-GWP alternatives such as R1234ze(E).
• What is the maximum cooling capacity?
  Up to 40.4 kW (11.4 tons) with R22, making it suitable for high-demand applications.
• Does it support bi-flow?
  Yes, this valve supports bi-directional refrigerant flow and features a balanced port.
• What are the electrical requirements?
  Operates at 11.5V to 13.8V DC using a bi-polar step motor with M12 4-pin male connector.