Electronics VLP1000_VAR - Manual

VLP1000/VAR MagnaValve®
Magnetic Valve for Wheel Machine Applications
Features
• Flow rate range of 0 - 1000 lb/min (0 - 454 kg/min)*
• Regulates flow of steel shot and grit
• For wheels up to 25 Hp (19 kw)
• Variable flow rate using the Variac (included)
• Normally closed
• No moving parts for maintenance-free operation
• Easy retrofit installation
* Flow rates based on S230 shot
Description
The VLP1000/VAR MagnaValve is a normally closed magnetic valve that regulates the flow of steel shot and grit in wheel
blast machines. The VLP1000/VAR is maintenance free — it has no moving parts so there are no parts to wear or break
and it is completely sealed to prevent media dust from entering the valve.
The VLP1000/VAR has rare earth permanent magnets for normally closed operation and an electromagnet for controlling
shot flow rates. With power applied, the magnetic field is neutralized and shot is allowed to flow through the valve. When
no power is applied to the MagnaValve, the permanent magnets stop all flow. If the power is interrupted for any reason,
the permanent magnets securely hold the shot, thereby virtually eliminating shot leakage.
The VLP1000/VAR MagnaValve is controlled with a Variac. A Variac is a variable AC transformer that provides
0-120 Vac output voltage to the MagnaValve. With zero volts applied to the MagnaValve, the permanent
magnets hold the shot. Application of voltage will cancel the permanent magnets’ holding force and allow
the shot to flow. Higher voltages will provide higer shot flow rates. The Variac is included with the VLP1000/
VAR MagnaValve.
The VLP1000/VAR MagnaValve provides a high degree of media control but it will not recognize fault conditions
such as low flow rates. Visit the Electronics Inc. website for other valve series which work with the AC amperage
controller (www.electronics-inc.com/magnavalve_selector_guide_for_wheel_blast_machines.html). The AC
Controller has a large digital display of motor amps and high/low alarms.
A clear and comprehensive instruction manual simplifies installation of the VLP1000/VAR. The MagnaValve is
factory tested and results are supplied upon request. In addition, the products are supported by the Electronics
Inc. application engineering staff.
Electronics Inc.
56790 Magnetic Drive
Mishawaka, Indiana 46545 USA
(574)256-5001
www.electronics-inc.com
Specification is subject to change without notice
Rev 1/14
MagnaValve is a registered trademark of Electronics Inc.
Variac
Regulated Media Flow
Control Signal
Motor
Current
Ammeter
Media Accelerated
Media
Hopper
MagnaValve
Wheel
Desired
Motor Current
Open Loop System with VLP1000/VAR MagnaValve and Variac
The Variac, included with the
VLP1000/VAR MagnaValve,
provides 0-120 Vac output
voltage to the MagnaValve.