ODE 21H8KB120 is a 21H Series, 2/2-way Normally Closed (NC), pilot-operated (indirect acting) solenoid valve designed for high-flow control of water, air, and inert gases

ODE 21H8KB120 is a 21H Series, 2/2-way Normally Closed (NC), pilot-operated (indirect acting) solenoid valve designed for high-flow control of water, air, and inert gases. It uses a brass body and NBR (nitrile) seals and requires a minimum pressure differential of 0.1 bar for operation.

Operating Principle

  • Power OFF: Valve remains closed.
  • Power ON: Pilot section opens the main valve.
  • Requires 0.1 bar minimum pressure differential to function properly because it is pilot-operated rather than direct-acting.

Fluid Compatibility

The NBR version is suitable for:

  • Water
  • Air
  • Inert gases

The NBR seal operating temperature range is −10°C to +90°C.

Typical Applications

  • Water treatment systems
  • Industrial automation
  • Industrial washing machines
  • Packaging equipment
  • Thermoregulation systems
  • Car wash equipment
  • Air handling systems

Key Summary

  • Model: ODE 21H8KB120
  • Type: 2/2-way Normally Closed, pilot-operated
  • Connection: G 1/2" BSP
  • Seal: NBR (Nitrile)
  • Orifice: 12 mm
  • Flow: 45 L/min
  • Pressure Range: 0.1 to 20 bar
  • Temperature Range: −10°C to +90°C
  • Body: Brass
  • Application: High-flow water, air, and industrial fluid systems requiring pilot-operated control.

Specifications

Model 21H8KB120
Series 21H Series
Valve Type Pilot-operated (Indirect Acting)
Function 2/2-way Normally Closed (NC)
Port Connection G 1/2" BSP
Body Material Brass CW617N
Seal Material NBR (Nitrile Rubber)
Orifice Size 12 mm
Flow Coefficient (Kv) 45 L/min
Operating Pressure 0.1 to 20 bar
Maximum Design Pressure (PS) 20 bar
Minimum Differential Pressure 0.1 bar
Protection Class IP65 with DIN connector
Electrical Standard IEC 335
Code Meaning
21H ODE pilot-operated valve series
8 G 1/2" BSP connection
K Normally Closed (NC)
B NBR seal
120 12 mm orifice
Component Material
Body Brass CW617N
Armature Tube Stainless Steel AISI 300
Fixed Core Stainless Steel AISI 400
Plunger Stainless Steel AISI 400
Spring Stainless Steel AISI 300
Seal NBR (Nitrile Rubber)
Phase Ring Copper
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