AutoVac® HD

AutoVac® HD-L

Vacuum System Design

Proper design is essential to optimal operation of drainage elements. JohnsonFoils' Application and Design engineers customize each system for complete control

AutoVac® HD-L
(LoVac Series)

Description

The new AutoVac® HD-L has a characterized valve opening, designed for paper machine application to provide linear response for improved flow control especially when the valve is just opening/closing to header vacuum. The unique shape of the valve port together with the 4 to 20 mA positioned high torque rotary actuator provides accurate, repeatable vacuum control. The electric actuator is rated for continuous duty and designed to work with the paper machine’s Distributed Control System (DCS) for unrestricted servo-modulated closed loop positioning.

The second important feature of the redesigned AutoVac® is the simplicity of design for ease of maintenance. The valve consists of essentially five parts: housing, sleeve, drive coupling, cover and rotary actuator. The valve is designed for quick and easy disassembly should maintenance be necessary.

In summary the redesigned AutoVac® HD-L provides accurate, repeatable, unrestricted closed loop vacuum control in a simple, maintenance-friendly design.

AutoVac® HD electrically actuated three-way, low vacuum valve rated for 0-60” wc (0 -1500mm). It includes a high torque rotary actuator with an integrated encoder rated for unrestricted modulation and an integrated vacuum sensor. Designed to be used with mill’s Distributed Control System (DCS).

  • Input power 24 vdc Power
  • Input signal 4 to 20 mA
  • Output signal 4 to 20 mA

Benefits

    • High torque, robust design
    • Open, unrestricted flow paths for clean operation with few internal parts for easy maintenance
    • Innovative valve opening design for improved linear response for best control
    • Designed to be interchangeable with Autovac® 2*

*Spool pieces may be required

AutoVac® HD-H
(HiVac Series)

Description

The new AutoVac® HD-H has a characterized valve opening, designed for paper machine application to provide linear response for improved flow control especially when the valve is just opening/closing to header vacuum. The unique shape of the valve port together with the 4 to 20 mA positioned high torque rotary actuator provides accurate, repeatable vacuum control. The electric actuator is rated for continuous duty and designed to work with the paper machine’s Distributed Control System (DCS) for unrestricted servo-modulated closed loop positioning.

The second important feature of the redesigned AutoVac® is the simplicity of design for ease of maintenance. The valve consists of essentially five parts: housing, sleeve, drive coupling, cover and rotary actuator. The valve is designed for quick and easy disassembly should maintenance be necessary.

In summary the AutoVac® HD-H provides accurate, repeatable, unrestricted closed loop vacuum control in a simple, maintenance-friendly design.

AutoVac® HD HiVac Series high vacuum valve rated for 0-25” Hg (0-63 cm Hg.) It includes a high torque rotary actuator with an integrated encoder rated for unrestricted modulation and an integrated vacuum sensor. Designed to be used with mill’s Distributed Control System (DCS).

  • Input power 24 vdc Power
  • Input signal 4 to 20 mA
  • Output signal 4 to 20 mA

Benefits

  • High torque, robust design
  • Open, unrestricted flow paths for clean operation with few internal parts for easy maintenance
  • Innovative valve opening design for improved linear response for best control