Product Overview

The Danfoss EV210B series serves as the definitive solution for precise fluid control in applications where system pressure is low or non-existent. As a direct-acting 2/2-way solenoid valve, the EV210B utilizes the electromagnetic force of the coil to lift the seal directly, completely eliminating the need for a minimum differential pressure to operate. This hardware architecture makes it indispensable for small-scale machinery, laboratory equipment, and vacuum systems where pilot-operated valves would fail to open. Engineered for high-frequency cycling and extreme reliability, the EV210B manages a diverse range of media—including water, oil, compressed air, and neutral gases—with absolute sealing integrity. Its compact footprint allows for seamless integration into tight control cabinets and complex manifolds, providing a robust and simplified flow control interface for mission-critical industrial processes.

Core Technical Advantages

Zero-Pressure Functional Integrity

The direct-acting mechanism ensures the valve opens and closes reliably from 0 bar up to its maximum rated pressure. This independence from system pressure allows engineers to utilize the EV210B in gravity-fed systems, closed-loop cooling circuits, and tank drainage applications where pressure differentials fluctuate or remain negligible.

High-Performance Armature Design

Danfoss incorporates a high-grade stainless steel armature and a square-section wire coil design in the EV210B. This reduces friction and optimizes the magnetic flux, resulting in a faster response time and a lower "holding" power consumption. The robust internal spring ensures the valve returns to its fail-safe position instantly upon power loss.

Versatile Material Compatibility

The EV210B program offers a wide spectrum of body materials (Brass, DZR Brass, or Stainless Steel) and sealing options (EPDM, FKM, or NBR). This modularity allows the valve to thrive in chemically aggressive environments, handling everything from high-temperature steam in autoclaves to corrosive fluids in chemical dosing systems.

Technical Specifications

Engineering Installation Guide

Media Filtration and Quality

While the direct-acting design is less sensitive to debris than pilot-operated versions, we strongly recommend installing a 50-micron strainer upstream. Foreign particles can lodge between the seat and the seal, causing internal leakage or preventing the armature from seating correctly.

Proper Orientation for Longevity

Although the EV210B functions in any mounting position, installing the valve with the coil in the upright vertical position minimizes the risk of dirt and calcification accumulating in the armature tube. This practice extends the mechanical life of the seal and prevents the coil from overheating due to mechanical resistance.

Electrical Termination and Safety

Ensure the coil voltage matches your control system precisely (AC or DC). Always use a DIN plug with a high-quality gasket to maintain the IP65 rating. Never energize the coil while it is removed from the valve body, as this will lead to immediate thermal failure of the copper windings.

Engineering Advantages

The EV210B excels in "start-stop" duty cycles where precision and speed are mandatory. Its simple mechanical design—featuring only one moving part—results in an exceptionally high MTBF (Mean Time Between Failure), reducing maintenance costs in high-volume production lines. The valve's ability to operate in vacuum conditions up to 99% (depending on version) makes it a preferred component for vacuum packaging and semiconductor manufacturing. Furthermore, the Danfoss "Clip-on" coil system allows for tool-free electrical maintenance, enabling technicians to replace coils in seconds without interrupting the fluid path, ensuring your facility maintains maximum operational uptime in even the most demanding environments.

Delivery & Logistics

Delivery time: 3-5 days when payment finish.

Shipping Carriers: BY DHL/FEDEX/UPS.

Packaging: We utilize impact-resistant industrial foam and original factory-sealed boxing. Each EV210B is shipped in anti-static materials to ensure the solenoid electronics and mechanical seals remain in pristine condition during international transit.

Technical FAQs

Q1: Why should I choose the EV210B over the EV220B?

A1: Choose the EV210B if your system has no pressure (0 bar) or very low pressure. The EV220B is a pilot-operated valve that requires at least 0.1–0.3 bar of pressure to open.

Q2: Can I use this valve for aggressive chemicals?

A2: Yes, provided you select the Stainless Steel body and FKM (Viton) seals. Always check the chemical compatibility chart for your specific media before installation.

Q3: Is the coil included in the package?

A3: Typically, the valve body and the coil are ordered separately to allow for voltage customization (e.g., 24VDC, 110VAC, 230VAC). However, we can provide them as a complete assembly upon request.

Q4: What happens if I install the flow in the wrong direction?

A4: The valve will likely fail to seal or may chatter. Direct-acting valves rely on the flow following the arrow on the body to help maintain the seal against the orifice under pressure.