หัวขับลม วาล์วหัวขับ KLQD Limit Switch box

Limit Switch Box APL-210N Series Valve limit switch it is a field instrument for detecting valve status in the automatic control system. It is used to output the open or closed position of the valve as a switch value signal, which is accepted by the program controller or the computer is visited and sampled. After confirmation Execute the next procedure. The product can also be used as an important valve interlock protection and remote alarm indication in the system

Table of Contents


Model APL-210N
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
Painting Chromate Polyester powder coating(black)


  • Solid and flexible design
  • Aluminium die-casting housing and powder coating.
  • Stainless steel ( 316 ) housing. (APL-5N)
  • Bolts on visual position indicator
  • Quick-set cam
  • Spring loaded splined cam.
  • No need to adjust again after initial setting.
  • Easy setting without tool
  • Dual cable entries
  • Captive cover bolts
  • No worry to loose bolts while cover open.
  • Spring loaded cover bolts ( APL-5N )
  • Easy mounting bracket
  • NAMUR standard stainless steel shaft and bracket.


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


Dimension วาล์วหัวขับลม Limit Switch Box APL 210N KLQD

Gallery for Limit Switch Box