Electronics LP2000_VAR Manuel d'utilisateur télécharger pdf

LP2000/VAR MagnaValve®

Magnetic Valve for Wheel Machine Applications

Features

• Flow rate range of 400 - 2000 lb/min (181 - 907 kg/min)*

• For wheels up to 50 Hp (37 kw)

• Variable ow rate using the Variac (included)

• Normally closed

• No moving parts for maintenance-free operation

• Regulates ow of steel shot and grit

• Easy retrot installation

* Flow rates based on S230 shot

Description

The LP2000/VAR MagnaValve is a normally closed magnetic valve that regulates the ow of steel shot and grit in wheel

blast machines. The LP2000/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 LP2000/VAR has rare earth permanent magnets for normally closed operation and an electromagnet for controlling

shot ow rates. With power applied, the magnetic eld is neutralized and shot is allowed to ow through the valve. When

no power is applied to the MagnaValve, the permanent magnets stop all ow. If the power is interrupted for any reason,

the permanent magnets securely hold the shot, thereby virtually eliminating shot leakage.

The LP2000/VAR MagnaValve is controlled with a Variac. A Variac is a variable AC transformer that pro-

vides 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’ hold-

ing force and allow the shot to ow. Higher voltages will provide higer shot ow rates. The Variac is

included with the LP2000/VAR MagnaValve.

The LP2000/VAR MagnaValve provides a high degree of media control but it will not recognize fault

conditions such as low ow rates. Visit the Electronics Inc. website for other valve series which work

with the AC amperage controller.* The AC Controller has a large digital display for motor amps and

high/low alarms.

A clear and comprehensive instruction manual simplies installation of the LP2000/VAR. The Magna-

Valve is factory tested and results are supplied upon request. In addition, the products are supported

by the Electronics Inc. application engineering sta.

Smaller sizes of stainless steel cut wire shot will not work with this MagnaValve model. For those

applications, see model VLP1000/VAR for 1000 lb/min capacity.*

* www.electronics-inc.com/magnavalve_selector_guide_for_wheel_blast_machines.html

Electronics Inc.

56790 Magnetic Drive

Mishawaka, Indiana 46545 USA

(574)256-5001

www.electronics-inc.com

Specication is subject to change without notice

Rev 1/14

MagnaValve is a registered trademark of Electronics Inc.

The Variac, included with the

LP2000/VAR MagnaValve,

provides 0-120 Vac output

voltage to the MagnaValve.

Variac

Regulated Media Flow

Control Signal

Motor

Current

Ammeter

Media Accelerated

Media

Hopper

MagnaValve

Wheel

Desired

Motor Current

Open Loop System with LP2000/VAR MagnaValve and Variac

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Résumé du contenu

Page 1 - LP2000/VAR MagnaValve®

LP2000/VAR MagnaValve®Magnetic Valve for Wheel Machine ApplicationsFeatures• Flow rate range of 400 - 2000 lb/min (181 - 907 kg/min)*• For wheels up t

Page 2 - LP2000/VAR MagnaValve

16.0”[406.4]3.50”[88.9]3.50”[88.9]7.00”[177.8]8.00”[203.2]4.50”[114.3]2.50”[63.5]7.00”[177.8]2.50”[63.5]5.00”[127.0]0.625”[15.87]O-Ring top and bottom