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| Model | Pozisyon | Bağlantı Ölçüsü (G) |
Orifis Ölçüsü | Min Basınç AC (bar) |
Max Basınç AC (bar) |
Min Basınç DC (bar) |
Max Basınç DC (bar) |
Sızdırmazlık |
|---|---|---|---|---|---|---|---|---|
| ESV 503-02 | N.K. | 3/8" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 503-03 | N.K. | 1/2" | 15 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 503-04 | N.K. | 3/4" | 20 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 503-05 | N.K. | 1" | 25 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 503-00-120 | N.K. | 1/8" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 503-01-120 | N.K. | 1/4" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-02 | N.A. | 3/8" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-03 | N.A. | 1/2" | 15 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-04 | N.A. | 3/4" | 20 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-05 | N.A. | 1" | 25 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-00-120 | N.A. | 1/8" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
| ESV 504-01-120 | N.A. | 1/4" | 12 mm | 1 | 40 | 1 | 40 | PTFE |
General Information:
Duravis ESV 503-504 series valves offer compact design, high sealing reliability, and fast switching, making them ideal for refrigeration and compressor systems. These valves operate as normally closed (NC) and are built for long-lasting performance.
Technical Specifications:
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Body Material: Brass
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Connection Type: Solder connection
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Connection Sizes: 1/4”, 3/8”, 1/2”
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Valve Type: 2/2 Way, Normally Closed
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Operation Mode: Direct acting
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Pressure Range: 0 – 25 bar
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Temperature Range: -40°C ~ +130°C
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Suitable Media: R134a, R404A, R407C, R410A, etc.
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Coil Voltages: 24V DC, 220V AC available
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Protection Class: IP65 (with coil)
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Seal Material: Neoprene or Viton
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Fast Response Time: Quiet and stable operation
Application Areas:
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Refrigeration and air conditioning systems
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Compressor control loops
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Industrial chillers
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Gas flow control systems
Mounting Position:
Vertical installation (coil upwards) is preferred. Horizontal installation is possible, but vertical positioning ensures better sealing and operational safety.
