Air Knocker Piping Connection Guide

Piping Configuration Selection and Important Notes

Select either the standard piping configuration or the relay piping configuration, referring to the piping examples provided.

  • When using only one circuit with a dedicated control panel (HKE or HKA Series), seal the unused circuit port with a plug.
  • The dedicated control panels (HKE and HKA Series) can accommodate knockers on both Circuit A and Circuit B. However, the charging and impact operations of the two circuits are performed in opposite phases.

１．Standard Piping Examples

A. Using AG44 Three-Way Solenoid Valve

Standard piping configuration using AG44 three-way solenoid valve

Note: Symbols shown in parentheses ( ) indicate the designations used for the AG44 model.

B. Using HKE/HKA Dedicated Controller

Standard piping configuration using HKE/HKA dedicated controller

HKE/HKA: Used for simultaneous automatic control of multiple knockers.
(Circuit A and Circuit B operate alternately.)

C. Using AOC-1B Air-Operated Controller

Automatic control can be achieved by installing an AG43-02-4-02GB solenoid valve upstream of the AOC-1B.

Standard piping example using AOC-1B Air-Operated Controller (Example 1)

Standard piping configuration using the AOC-1B (without timer control)

Standard piping example using AOC-1B Air-Operated Controller (Example 2)

Piping configuration for AOC-1B during external control or manual operation

D. Using AG44 Three-Way Solenoid Valve and MV-1 Master Valve

Standard piping configuration using AG44 three-way solenoid valve and MV-1 master valve

Used when long extension tubing is required.

Using the MV-1 Master Valve

  • When the extension tube between the controller or solenoid valve and the knocker is long, use an MV-1 Master Valve to prevent operational problems and reduced impact force.
  • When using the Master Valve, maintain a supply pressure of 0.4 MPa or higher. Keep the distance between the knocker and the Master Valve within 1 m, and the distance between the Master Valve and the controller or solenoid valve within 51 m.

２．Relay Piping Examples

  • Relay piping is a piping method in which multiple knockers are connected in a series.
    In this arrangement, a relay tube is connected from the air tank of the knocker nearest the three-way valve to the supply/exhaust port of the next knocker in the sequence.
  • The maximum number of connected knockers depends on the control method (control device used). Refer to piping examples E, F, and G below.

E. Using AG44 Three-Way Solenoid Valve (Up to 6 Knockers)

Relay piping configuration using AG44 three-way solenoid valve (maximum 6 knockers)

F. Using HKE/HKA Dedicated Controller (Up to 11 Knockers per Circuit)

Relay piping configuration using HKE/HKA dedicated controller (maximum 11 knockers per circuit)

G. Using AOC-1B Air-Operated Controller (Up to 4 Knockers)

Automatic control can be achieved by installing an AG43-02-4-02GB solenoid valve upstream of the AOC-1B.

Relay piping configuration using AOC-1B Air-Operated Controller (without solenoid valve)

Relay piping configuration using AOC-1B (without timer control)

Relay piping configuration using AOC-1B Air-Operated Controller (with solenoid valve)

Relay piping configuration for AOC-1B during external control or manual operation

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