Enclosure : Weatherproof IP67/NEMA4&4X (Standard ) IP68(Option)
– Solid and Flexible design & various options ava ilable
3~4 additional switches 8~16 points Terminal Strips
– Bolts on visual position indicator
– Dual cable entries : 2 x 1/2 NPT(Standard )
M20, PG13.5, PF1/2 , PT1/2 .(Option)
– Terminal Strips : 8 points(0.08-2. 5 )
– Captive cover bolts
– Easy mounting bracket
NAMUR standard stainless steel shaft and stainless steel or steel bracket.
What is a limit switch box?
A limit switch box is an electrical control device that is used to detect the travel limits of a moving machine or equipment. It is typically mounted in an enclosure and consists of several switches (or contact blocks) connected to adjustable arms, cams, rod actuators, or other devices that measure the extent of travel. When these devices reach their designated limit point—either open or closed—the switch trips and sends an electrical signal back to the controlling system, signaling it to stop running the machine or equipment at its current location.
Limit switches are commonly used in industrial settings such as factories and production plants where automated machines are operated on a daily basis. The purpose of using a limit switch box is two-fold: 1) To indicate when mechanical motion has reached predetermined positions; 2) To provide protection against unnecessary wear on machinery by preventing any excessive motion beyond what was programmed into it in advance.
There are two main types of limit switch boxes: spring biased (basic), and non-spring biased (electromechanical). Spring biased systems operate using one or more integral springs which exert pressure onto rotary contact blocks when travel reaches its maximum range. Non-spring biased systems use electronic solenoid contacts instead for greater accuracy and reliability over traditional spring based systems.
In most cases, each limit switch box will be constructed with both Normally Open (NO) & Normally Closed (NC) connections so that safety circuits can be correctly wired up without conflicting signal paths happening at once due to feedback loops from other signals within same system control panel cabinet area – thus protecting all operators from potential harm during normal operation activities involving switching power supplies &/or high voltage lines located within close proximity surroundings near working zones areas too!
What is a limit switch on a valve?
A limit switch on a valve is an electromechanical device that monitors the position of a valve or other moving component. Limit switches can be used to monitor both open and closed positions, depending on how they are installed. When the switch senses that the valve has reached its maximum travel range, it sends an electrical signal to another device or control system, such as an automated motor start/stop circuit.
Limit switches often have adjustable trip points, so that when the actuator reaches a specific point along its travel path, it triggers the limit switch and then signals for some action to occur (such as turning off power). Limit switches also act as safety devices in certain applications – for instance, when using air cylinders they may sense over-pressure and shut things down before any damage occurs. They are also frequently used to ensure process correctness by signaling proper movement of machinery parts throughout their operating cycle.
What is the use of limit switch in pneumatic actuator?
The use of limit switch in pneumatic actuator is to provide a system with feedback about the position of the valve. The limit switch works by sensing the location of a physical object such as an arm or telescopic rod relative to its mechanical position when actuated. When the physical object reaches certain predetermined positions, it triggers an electrical signal which can be used for controlling various parameters related to safety and overall efficiency of a pneumatic system.
What are limit switches on actuated valves?
Limit switches on actuated valves are mechanical systems which detect when a valve has reached its predetermined limit. They can either be used to physically block or allow continued opening/closing of the valve, as well as provide feedback about the position of the valve for automation and control purposes.
The most common type of limit switch is an electrical contact that goes through an open-close cycle when the valve reaches its activated endpoint. This contact then sends a signal back to its source indicating that a certain position has been achieved and needs to be acknowledged. It is usually found in areas with harsh temperature, pressure, and medium conditions like industrial environments, oil and gas fields, water treatment facilities etc.