032F6219 Danfoss EVRAT 20 Solenoid Valve 0-42Bar DN20

032F6219 Danfoss EVRAT 20 Solenoid Valve 0-42Bar DN20

1.Overview of the 032F6219 Danfoss EVRAT 20

The Danfoss 032F6219 is an EVRAT 20 type auxiliary opening servo solenoid valve, part of the Danfoss EVRAT series. It is primarily used in industrial refrigeration systems and is a normally closed (NC) solenoid valve with flange connections. Its specialized design allows it to be used in liquid, suction, or hot gas lines in ammonia (R717) or fluorinated refrigerant systems. "Zero Pressure Differential, High Flow"—a 20 mm straight-through valve with a KV of 4.5 m³/h—allows full opening without a pressure differential, enabling defrost from -40°C to 130°C with a single valve. Designed specifically for shutting off the suction manifold of parallel ammonia/fluorinated refrigerants.

Assisted Opening Servo Mechanism—Full opening flow is achieved with a 0 bar pressure differential, enabling rapid pumpdown even after pump shutdown and reducing system pressure loss by 15%.

Large Bore Design—DN20 flange port with a KV of 4.5 m³/h—leads flow capacity within the same pipe diameter, reducing valve size and piping costs.

Bidirectional Flow Seal—Shutoffs can be achieved in both forward and reverse directions, eliminating the need for additional check valves for heat pump switching, simplifying piping by 30%.

Military-Grade Leakage Rating—PTFE main valve core + EPDM O-ring, bubble-level leakage ≤ 0.02 mL/min, meets ANSI/FCI 70-2 Class VI.
Wide operating temperature range and long life: -40°C to +105°C continuous operation, instantaneous defrost at 130°C, and a lifespan of ≥ 1,000,000 cycles.
Global certifications: CE, UL, CRN, GOST, and DNV-GL. Export to Europe, the US, and the Middle East, and marine applications require no secondary testing.
Easy installation: Any flow direction, 360° rotatable coil, and built-in manual open lever for manual hold during commissioning or power outages.

2.Core Features:

Model: 032F6219
Series: EVRAT20 (Assisted Opening)
Orifice: DN20
Flange: EN 1092-2 PN16, Ø 105 mm, 4 x Ø14
Actuation: Servo-assisted opening, fully open with 0 bar differential pressure
Function: Normally Closed (NC)
Maximum operating pressure: 42 bar (610 psig)
Maximum opening differential pressure: 0 bar (no differential pressure required)
Media temperature: -40°C to +105°C (130°C during defrost)
Ambient temperature: -40°C to +80°C
Body material: ASTM 316L stainless steel
Seal material: PTFE main valve element + EPDM O-ring (FKM optional)
Leakage rate: ≤ 0.02 mL/min (Class VI)
Rated Kv value: 4.5 m³/h (ΔP = 1 bar)
Cv value: 5.2 gpm US
Coil power AC: 8 W / DC: 10 W
Available voltages: 12 V, 24 V, 110 V, 230 V (AC 50/60 Hz & DC)
Electrical connection: DIN 43650 Type A plug, IP65
Mounting orientation: Any, coil upward recommended
Manual operation: Lockable lever
Lifespan: ≥ 1 million cycles
Approvals: CE, UL, CRN, GOST, DNV-GL
Weight: ≈ 2.44 kg (valve body only)

Zero-Differential Pressure Actuation: The EVRAT solenoid valve's unique design allows it to open without requiring a pressure differential, making it ideal for applications requiring a zero pressure differential.

Flexible Component Ordering: Like other EVRA series models, the EVRAT solenoid valve can be supplied with separate valve components, such as the valve body, flange, and coil. This facilitates spare parts inventory management and maintenance replacement.

Suitable for harsh operating conditions: The solenoid valve has a wide media temperature range, and its coil is specifically designed to withstand the harsh high-temperature and high-humidity environments found in industrial refrigeration systems.

Typical Applications
Ammonia/Fluorine Parallel Unit Suction Main Shutoff
Large Cold Storage Evaporator Return Air Shutoff
Quick Freezing Tunnel Hot Gas Defrosting and Liquid Drainage
Refrigerant Shutoff for Marine Refrigerated Containers
Industrial Heat Pump Hot/Cold Switchover Main Line

Supporting Coil (Sold Separately)
018F6701 (220 V AC 50 Hz)
018F6702 (24 V DC)
018F6703 (110 V AC 50 Hz)

The 032F6219 (EVRAT 20) solenoid valve is a high-performance valve designed for industrial refrigeration applications. Its zero-pressure differential actuation capability, compatibility with a variety of refrigerants (including ammonia), and flexible manual operation and parts ordering methods make it a key component for reliable operation of refrigeration systems under specific operating conditions.

3.Product details pictures

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