Gold Member Since 2008
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Yongjia Aocheng Hardware Co., Ltd.

Flameproof Limit Switch Box, Valve Monitor, Als500m2 Series Valve Monitor manufacturer / supplier in China, offering Flameproof Limit Switch Box ALS500m2 Series Valve Monitor, Automatic Nozzle for Fuel Dispenser, Hose Coupling and so on.

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Flameproof Limit Switch Box ALS500m2 Series Valve Monitor

Purchase Qty.:
10-99 100+
FOB Unit Price: US $60 US $40
Purchase Qty. (Pieces) FOB Unit Price
10-99 US $60
100+ US $40
Get Latest Price
Production Capacity: 10, 000PCS/Month
Transport Package: 2PCS in One Cartion 10PCS in Marster Carton
Payment Terms: L/C, T/T, Paypal, Western Union

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Basic Info
  • Model NO.: ALS500M2
  • Specification: ISO
  • HS Code: 7026
  • Trademark: AOCHENG
  • Origin: China
Product Description
Flameproof Limit Switch Box ALS500M2 Series Valve Monitor


ALS500M2 Series Flameproof Limit Switch Box (Flameproof Valve Monitor) is a rotary position indication device in HAZARDOUS area (Exd II BT6). Armed with mechanical switch, this device can senses mechanical position (on/off) valve for remote PLC or PC indication. The visual indicator on the top of the device can also clearly display the valve position for local detection


Flameproof Limit Switch Box ALS500m2 Series Valve Monitor
Specifications And Technical Data
EnclosureDie-casting aluminum: O-ring sealed
CoatingDichromate conversion with polyester powder coating
O-ringsBuna N
EnvironmentNEMA 4, 4X, 7, 8 IP66
Area ClassificationClass I, Div 1&2, Groups C and D, Exd II BT6
FastenersStainless steel
ShaftStainless steel Namur
 Conduit EntriesTwo 1/2" BSPP
Also available with two 1/2" or 3/4" NPT, 3/4" BSPP, M20-1.5
 Terminal Strip Contacts
 Mounting BracketMB - 3.4: 30 x 80, 130 H : 20, 30 (Carbon steel) 
 Temperature Rating-20ºC ~ 85ºC
 Sensor: 2 SPDT CROUZET Mechanical Switches
 Model No.M2
 Operating VoltageMax: 15A, 125~250VAC
 Operating Temp. -25ºC ~ 85ºC

Wiring Diagram

Flameproof Limit Switch Box ALS500m2 Series Valve Monitor

Drawing and Dimension

Flameproof Limit Switch Box ALS500m2 Series Valve Monitor
About us
YONGJIA AOCHENG HARDWARE CO.,LTD is a manufacturer, seek to provide quality and tested products at affordable prices. We are based at Wenzhou, China. 
If you want to discuss any of our products you can call a sales representative on +86 577 6721 1565 or email us. 

Usually can be finished in 25 days after your Advanced payment received.
Payment terms
T/T   L/C  Western   union   Paypal
Normal type can be free.OEM need pay for the sample fee .and the customers need to cover the shipping cost.

Standard export packaging(Cartons packing or color box packing)
Also can according to customer's requirements.
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