apl210 valve monitor
apl210 valve monitor
apl210 valve position monitor
apl210 valve position
hvm-2 limit switchbox
hvm-2 valve limit switchbox
HVM-2 valve position monitor

APL-210N limit switch box is a signal device for remote control of valves, which displays the working status of the valve through the switch of the valve.


HVM-2 Series Valve Position Monitor is a compact,weatherproof enclosure with internal adjustable position switches and an external visual indication.It has NAMUR standard mounting and drive, and is ideally suited for mounting on to quarter turn actuators and valves...



HVM-2 Series Valve Position Monitor pplies compact design to offer a minitype weather proof Protection in aluminum die-cast enclosure and 0-ring. The bracket is designed according to ISO 5211 and NAMUR standard.


Main Features and Characteristics
  • Solid and compact design aluminium die-cast housing with polyester powder coated finish
  • Bolt-on Visual Position Indicator
  • "Quick-Set" spring loaded splined cam. No need to adjust again after initial setting. Easy setting without tools
  • Dual cable entries
  • Captive cover bo lts to prevent loss when cover is removed
  • NAMUR standard stainless steel shaft and bracket
  • Omron switches
Standard Specification
Model HVM-2 Series
Enclosure Weatherproof IP67/NEMA4&4X
Cable entries Two NPT1/2"
Ambient temperature -20°C~80°C
Terminal strips 8 points (0.05-2.5mm²)
Position indicator 0~90° (90° turn free join) close:red open:yellow
Switches Mechanical switch x2 proximity sensor x2

Chromate Polyester powder coating(black)


Material of Parts
Housing Cover & Body A luminum die casting O-ring NBR
Shaft Stainless steel Bushing Bronze
Indicator cover Polycarbonate E-ring (Shaft) Stainless steel
Cam Polycarbonate Earth Lug Stainless steel
Spring Stainless steel Indicator ABS/Polycarbonate
Housing cover bolt Stainless steel Bracket

Stainless steel



Mounting Bracket Namer Standard C means plate steel, S means stainless steel



25 x 50
30 x 80
30 x 80(130)


30 x 80
30 x 80


30 x 130
30 x 130




HVM-2/APL210Series Weatherproof