
APL-310N Limit Switch Box
APL-310N limit switch box 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 aquarter turn actuators and valves.Description
HVM-3 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 aquarter turn actuators and valves.
Design
HVM-3 Series Valve Position Monitor applies compact design to offer a mini-type weather proof Protection in aluminum die-cast enclosure and O-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 bolts to prevent loss when cover is removed
- NAMUR standard stainless steel shaft and bracket
- Omron switches

Standard Specification
Specification | |
Model | HVM-3 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 |
Painting | Chromate Polyester powder coating(black) |
Material of Parts
Housing Cover& Body | Aluminum 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 |
HVM-3(10) Series Weatherproof






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