Danfoss 034G4253 Electric Regulating Valve – KVS 15, 7/8 inch Solder ODF, R22, R134a, R404A

The Danfoss 034G4253 electric regulating valve (KVS 15) is designed for precise flow control in compact HVAC and refrigeration applications. Built to work with refrigerants like R22, R134a, and R404A, this valve ensures bi-directional functionality and high durability for low- to mid-capacity systems.

Key Features

• Refrigerant compatibility: R22, R134a, R404A, R407A, R407C, R407F, R410A, R422B, R422D, R438A, R448A, R449A, R450A, R452A, R507A, R513A, R1234ze(E)
• Rated capacity: 5.15 kW (1.31 tons) with R22, 3.78 kW (0.94 tons) with R134a, 4.58 kW (1.07 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: 660 psig
• Flow time speed: 8.5 to 17 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: No

Applications

Ideal for compact refrigeration systems, small process chillers, and food service equipment that demand precise electronic expansion valve control and bi-flow operation.

Competitor Equivalent Part Numbers

• Sporlan SER-K-O
• Emerson EXV-10-404A
• Alco EX4-02-R22

Frequently Asked Questions

• Which refrigerants are compatible with the 034G4253 valve?
  The valve supports R22, R134a, R404A, as well as other HFCs and low-GWP blends like R1234ze(E).
• How much capacity can it handle?
  Up to 5.15 kW (1.31 tons) with R22, perfect for light commercial applications.
• Is bi-flow operation supported?
  Yes, the valve is designed for bi-directional flow and features an embossed 2-way arrow indicator.
• What are the electrical specs?
  Operates at 11.5V to 13.8V DC using a bi-polar step motor and M12 connector.