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DURAVIS ESV 620-621 Series Stainless Solenoid Valves

Model Position Connection Size (G) Orifice Size Min Pressure AC (bar) Max Pressure AC (bar) Min Pressure DC (bar) Max Pressure DC (bar) Sealing Material
ESV 620-04-050 N.K. 3/4" (DN20) 5 mm 0 7 0 7 PTFE
ESV 620-04-060 N.K. 3/4" (DN20) 6 mm 0 6 0 6 PTFE
ESV 620-04-070 N.K. 3/4" (DN20) 7 mm 0 5 0 5 PTFE
ESV 620-04-080 N.K. 3/4" (DN20) 8 mm 0 3 0 3 PTFE
ESV 620-04-090 N.K. 3/4" (DN20) 9 mm 0 2 0 2 PTFE
ESV 620-04-100 N.K. 3/4" (DN20) 10 mm 0 1 0 1 PTFE
ESV 620-05-050 N.K. 1" (DN25) 5 mm 0 7 0 7 PTFE
ESV 620-05-060 N.K. 1" (DN25) 6 mm 0 6 0 6 PTFE
ESV 620-05-070 N.K. 1" (DN25) 7 mm 0 5 0 5 PTFE
ESV 620-05-080 N.K. 1" (DN25) 8 mm 0 3 0 3 PTFE
ESV 620-05-090 N.K. 1" (DN25) 9 mm 0 2 0 2 PTFE
ESV 620-05-100 N.K. 1" (DN25) 10 mm 0 1 0 1 PTFE
ESV 621-04-025 N.A. 3/4" (DN20) 2.5 mm 0 10 0 10 PTFE
ESV 621-05-025 N.A. 1" (DN25) 2.5 mm 0 10 0 10 PTFE
ESV 620-02-050 N.K. 3/8" (DN10) 5 mm 0 7 0 7 PTFE
ESV 620-02-060 N.K. 3/8" (DN10) 6 mm 0 6 0 6 PTFE
ESV 620-02-070 N.K. 3/8" (DN10) 7 mm 0 5 0 5 PTFE
ESV 620-02-080 N.K. 3/8" (DN10) 8 mm 0 3 0 3 PTFE
ESV 620-02-090 N.K. 3/8" (DN10) 9 mm 0 2 0 2 PTFE
ESV 620-02-100 N.K. 3/8" (DN10) 10 mm 0 1 0 1 PTFE
ESV 620-03-050 N.K. 1/2" (DN15) 5 mm 0 7 0 7 PTFE
ESV 620-03-060 N.K. 1/2" (DN15) 6 mm 0 6 0 6 PTFE
ESV 620-03-070 N.K. 1/2" (DN15) 7 mm 0 5 0 5 PTFE
ESV 620-03-080 N.K. 1/2" (DN15) 8 mm 0 3 0 3 PTFE
ESV 620-03-090 N.K. 1/2" (DN15) 9 mm 0 2 0 2 PTFE
ESV 620-03-100 N.K. 1/2" (DN15) 10 mm 0 1 0 1 PTFE
ESV 621-02-025 N.A. 3/8" (DN10) 2.5 mm 0 10 0 10 PTFE
ESV 621-03-025 N.A. 1/2" (DN15) 2.5 mm 0 10 0 10 PTFE

General Information:
Duravis ESV 620-621 series features a fully direct acting mechanism that allows it to operate reliably even with zero differential pressure. The stainless steel body offers superior corrosion resistance, making it ideal for chemical, hygienic, and aggressive media. Known for quiet operation and low power consumption.

Technical Specifications:

  • Body Material: AISI 316 Stainless Steel

  • Connection Size: 1/4” - 1/2” (BSP or NPT)

  • Valve Type: 2/2 Way, Normally Closed (NC) or Normally Open (NO)

  • Working Principle: Direct acting (no pilot system)

  • Pressure Range: 0 – 16 bar

  • Temperature Range: -10°C ~ +180°C

  • Media: Water, air, gas, light oils, chemicals

  • Coil Voltage Options: 12/24V DC – 24/110/220V AC

  • Protection Class: IP65 (with coil)

  • Seal Material: FKM (Viton), EPDM, PTFE

Application Areas:

  • Chemical dosing systems

  • Laboratory applications

  • Food, beverage and pharmaceutical industries

  • Water and gas control systems

  • Precision process automation

Mounting Position:
Recommended to be installed vertically with the coil facing upward. Horizontal mounting is also acceptable. Flow direction must follow the arrow on the valve body.