Danfoss 034G3631 EXV

The Danfoss 034G3631 ETS 400L Electric Expansion Valve is a balanced-port, bi-flow electronic expansion valve designed for precise refrigerant flow control in commercial refrigeration and air-conditioning systems.

The ETS 400L features an S-shaped flow characteristic and a bipolar stepper motor with 3,810 full steps for accurate valve positioning. It operates on 12 V DC and uses 2-1/8-inch solder ODF inlet and outlet connections.

The valve has a Cv value of 21.4 and Kv value of 18.5 m³/h. Maximum working pressure is 37 bar / 536 psig, with a maximum operating pressure differential of 26 bar / 377 psi.

The 034G3631 also features an M12 4-pin electrical connection, IP67 enclosure rating, integrated sight glass, brass body, and copper connections.

Key Benefits

• Manufacturer: Danfoss
• Part Number: 034G3631
• Model: ETS 400L
• Product Type: Electric Expansion Valve
• Balanced-port design
• Bi-flow operation
• S-shaped flow characteristic
• Connection size: 2-1/8-inch solder ODF inlet and outlet
• Cv: 21.4
• Kv: 18.5 m³/h
• Maximum working pressure: 37 bar / 536 psig
• Maximum operating pressure differential: 26 bar / 377 psi
• Bipolar stepper motor
• 3,810 full steps
• Operating voltage: 12 V DC
• M12 male 4-pin electrical connection
• IP67 enclosure rating
• Integrated sight glass
• Brass body with copper connections
• Designed for commercial refrigeration and air-conditioning applications

Common Questions

What is the Danfoss 034G3631?
The 034G3631 is a Danfoss ETS 400L electric expansion valve designed to regulate refrigerant flow in compatible commercial refrigeration and air-conditioning systems.

What connection size does the 034G3631 use?
It uses 2-1/8-inch solder ODF connections on both the inlet and outlet.

Is the Danfoss ETS 400L 034G3631 a bi-flow valve?
Yes. It is a balanced-port valve designed for bi-flow operation.

What is the maximum working pressure?
The maximum working pressure is 37 bar / 536 psig. Maximum operating pressure differential is 26 bar / 377 psi.

Which refrigerants are compatible?
Danfoss lists compatibility with multiple refrigerants, including R1234ze(E), R134a, R22, R404A, R407A, R407C, R407F, R407H, R410A, R448A, R449A, R507A, R513A, R515A, and R515B, among other approved refrigerants. Always verify refrigerant and operating conditions for the specific system.

Which controllers are compatible with this valve?
Danfoss lists compatible controller families including AK-XM 208C, EKE, EKF, and MCX. Controller selection and configuration should be verified for the specific application.

Does the 034G3631 have a sight glass?
Yes. The ETS 400L 034G3631 includes an integrated sight glass.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

034G3631 is the cross for 034G3501

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