Danfoss 034G3631 ETS 400L Electric Expansion Valve

Description

The Danfoss 034G3631 ETS 400L is a high-performance electric expansion valve (EXV) engineered for precise superheat and refrigerant flow control in commercial and industrial refrigeration systems. Part of Danfoss’s trusted ETS series, this valve uses a stepper motor-driven design to deliver accurate, stepless modulation of refrigerant flow — optimizing system efficiency, protecting compressors, and maintaining consistent temperature control across a wide range of operating conditions.

Product Overview

The ETS 400L is designed for use in medium- to large-capacity refrigeration systems where precise electronic expansion control is critical. It integrates seamlessly with Danfoss electronic controllers and is compatible with a broad range of common refrigerants. The stepper motor actuator provides reliable, repeatable positioning without the hunting or instability associated with thermostatic expansion valves.

Key Features

• Stepper motor-driven electric expansion valve for precise refrigerant flow modulation
• Designed for commercial and industrial refrigeration applications
• Compatible with a wide range of refrigerants including HFCs and HFOs
• Stepless control for optimized superheat management and system efficiency
• Robust construction for reliable long-term performance in demanding environments
• Designed for integration with Danfoss electronic controllers and EKE/AKE control systems
• Bi-directional flow capability for flexible system design
• Factory-sealed, maintenance-free stepper motor actuator

Application Suitability

• Commercial refrigeration systems (supermarkets, cold storage, food processing)
• Industrial refrigeration and process cooling
• Chiller and heat pump applications
• Systems requiring precise electronic superheat control

Why Choose the Danfoss ETS 400L

Danfoss ETS series valves are a benchmark in the refrigeration industry for accuracy and durability. The ETS 400L’s electronic control capability enables dynamic response to load changes, reducing energy consumption and extending compressor life. Its compatibility with Danfoss controllers makes it a natural fit for new installations and retrofit projects alike.

Brand Assurance

Danfoss is a global leader in refrigeration and HVAC components, with decades of engineering expertise. The ETS 400L reflects Danfoss’s commitment to energy efficiency, system reliability, and ease of integration.