Direct acting 2-port solenoid valve general-purpose valve AB21 series

Caution
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details. - When the body material is aluminum, the fluid used: Water is not supported.
Product Description
Direct acting 2-port solenoid valve.
[Features]
・ Water/air/oil/vacuum: General-purpose valve series that controls various types of fluids.
・ In addition to high reliability and high quality, a wide variety of options surely enhance the performance of equipment and devices.
・ NC (open when energized) type.
・ Connection port size: Rc1/8, Rc1/4.
・ Cautions: When the body material is aluminum, the fluid used: Water is not supported.
[Applications]
・ For fluid control.
General-purpose valve series for controlling various types of fluids
| Items | AB21 |
|---|---|
| Operating fluid | Air, Water, Kerosene, Oil (50 mm2/s or less) |
| Operating pressure differential MPa | 0 to 1.5 (It varies depending on the type, so please refer to the maximum operating pressure differential by model.) |
| Maximum operating pressure MPa | 1.5 |
| Pressure resistance (at water pressure) MPa | 3 |
| Fluid temperature°C | -10 to +40°C (No freezing) |
| Ambient temperature°C | -20 to +50 |
| Heat-resistant class | Class 130 (B) |
| Environment | No Corrosive or Explosive Gases in Surroundings |
| Valve Structure | Direct acting poppet structure |
| Valve seat leakage cm3/min (ANR) | 0.2 or less |
| Mounting posture | Free |
Common specifications
| Fine | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model number | Connection port diameter | Orifice diameter (mm) | Maximum operating pressure differential (MPa) | Rated Voltage | Apparent power (VA) | Power consumption (W) | Weight (kg) | |||||||||||||||
| Air | Water, kerosene | Oil (50 mm2/s) | During retaining | Starting | AC 50/60 Hz | DC | ||||||||||||||||
| AC | DC | AC | DC | AC | DC | 50 Hz | 60 Hz | 50 Hz | 60 Hz | |||||||||||||
| AB21-01-1 | Rc 1/8 | 1.5 | 1.5 | 1.0 | 1.5 | 1.0 | 0.9 | 1.0 | AC100V 50/60 Hz *2 AC200V 50/60 Hz *2 DC24V | 11 | 9 | 15.4 | 12.6 | 5.5/4.2 | 7 | 0.23 (aluminum) 0.36 (brass) | ||||||
| AB21-01-2 | 2.0 | 1.0 | 0.6 | 1.0 | 0.6 | 0.5 | 0.6 | |||||||||||||||
| AB21-01-3 | 3.0 | 0.7 | 0.2 | 0.4 | 0.2 | 0.25 | 0.2 | |||||||||||||||
| AB21-01-5 | 4.0 | 0.4 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | |||||||||||||||
| AB21-02-1 | Rc1/4 | 1.5 | 1.5 | 1.0 | 1.5 | 1.0 | 0.9 | 1.0 | ||||||||||||||
| AB21-02-2 | 2.0 | 1.0 | 0.6 | 1.0 | 0.6 | 0.5 | 0.6 | |||||||||||||||
| AB21-02-3 | 3.0 | 0.7 | 0.2 | 0.4 | 0.2 | 0.25 | 0.2 | |||||||||||||||
| AB21-02-5 | 4.0 | 0.4 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | |||||||||||||||
Model-specific specifications
| Model number | Connection port diameter | Orifice diameter (mm) | Flow rate characteristics | |||||
|---|---|---|---|---|---|---|---|---|
| C [dm3/ (s·bar)] | b | Cv value | ||||||
| NC (energized open) type | ||||||||
| AB21-01-1 | Rc 1/8 | 1.5 | 0.29 | 0.51 | 0.1 | |||
| AB21-01-2 | 2.0 | 0.53 | 0.55 | 0.15 | ||||
| AB21-01-3 | 3.0 | 1.1 | 0.52 | 0.3 | ||||
| AB21-01-5 | 4.0 | 1.8 | 0.35 | 0.4 | ||||
| AB21-02-1 | Rc 1/4 | 1.5 | 0.29 | 0.51 | 0.1 | |||
| AB21-02-2 | 2.0 | 0.53 | 0.55 | 0.15 | ||||
| AB21-02-3 | 3.0 | 1.1 | 0.52 | 0.3 | ||||
| AB21-02-5 | 4.0 | 1.8 | 0.35 | 0.4 | ||||
Flow rate characteristics
*1: The conversion between effective cross-sectional area S and sonic conductance C is S ≒ 5.0 × C.
*2: 100 V AC (50 / 60 Hz) can also be used with 110 V AC (60 Hz). 200 V AC (50 / 60 Hz) can also be used with 220 V AC (60 Hz).

AB21 external appearance

Internal Structure of AB21
| Product number | Part name | Material | |||
|---|---|---|---|---|---|
| 1 | O-ring | Fluoroelastomer | |||
| 2 | Coil | - | |||
| 3 | Core assembly | Stainless steel | |||
| 4 | Shading coil | Copper | |||
| 5 | plunger spring | Stainless steel | |||
| 6 | plunger | Stainless steel | |||
| 7 | O-ring | Nitrile or fluoroelastomer | |||
| 8 | Seal | Nitrile or fluoroelastomer | |||
| 9 | Body | aluminum or brass | |||
AB21 Parts List

AB21 Dimensional Drawing (※Lead length: 250 mm)
Dimensions in parentheses are for body: brass

AB21 (with mounting plate) Dimensional Drawing