Series K Pneumatic Switch
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Catalog excerpts

Series K Pneumatic Switch - 1

Pneumatic Switch Installation and Operating Manual Liquid Level

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Series K Pneumatic Switch - 2

Read this Manual Before Installing This manual provides information on the Series K Pneumatic Switch Mechanism. It is important that all instructions are read carefully and followed in sequence. Detailed installation and hook-up instructions are included in this manual. Conventions Used in this Manual Certain conventions are used in this manual to convey specific types of information. General technical material, support data, and safety information are presented in narrative form. The following styles are used for notes, cautions, and warnings. Notes Notes contain information that augments...

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Series K Pneumatic Switch - 3

Description The Series K is a non-bleed pneumatic switch. It incorporates a three-way pneumatic valve assembly, actuated by a magnet swing carriage. Mechanisms are available as an option for most Magnetrol liquid level controls. Technology Magnetic force and the lever mechanism transmit movement from the pressure vessel to the pneumatic valve. Figure 1 shows the position of the attraction sleeve and magnet when the liquid level is such that the attraction sleeve is below the field of the magnet. In this position, the flapper has been drawn away from the valve rod, permitting the inlet air...

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Series K Pneumatic Switch - 4

Reversing Pilot Action Enclosing tube All Series K Pneumatic Switch Mechanisms are shipped from the factory in the direct (close) position at high level. They can be field modified for the reverse (open) position by following the steps below: 1. The action can be reversed by first removing the upper shoulder screw from the actuator link and moving it from the direct (D) position to the reverse (R); refer to Figure 3. 2. Loosen the screw that positions the spring bracket and move it from the direct (D) position to the reverse (R) position; refer to Figure 4. 3. Fasten screw securely. Reverse...

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Series K Pneumatic Switch - 5

Preventive Maintenance To clean the nozzle, follow the steps below: 1. Unscrew and remove the adapter. Refer to Figure 5. Enclosing tube Caution: Do not lose the ball which will drop out when the adapter is removed. ⁄16" Allen wrench Air line adapter Ball Nozzle Actuating rod 2. The ball and actuating rod will now fall out when the switch is tipped. 3. Unscrew the socket set screw with a 1⁄16" Allen wrench. This will prevent damage to the flapper when performing step 4. 4. Insert a 1⁄16" diameter wire into the nozzle from the air line connection side. Refer to Figure 6. The wire may be...

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Series K Pneumatic Switch - 6

Replacement Parts K Series pneumatic switch Replacement parts for K Series Pneumatic Switch Mechanisms are available as an assembly only. Switch mechanism consists of entire pneumatic assembly mounted in the switch housing base. See figure 7 below. When ordering an assembly, be certain to specify: 1. The model number of the level control in which the switch was installed. 2. The serial number of the level control in which the switch was installed. Refer to nameplate attached to control. Caution: When ordering replacement switch mechanisms, be certain to determine color dot on magnet. Never...

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Series K Pneumatic Switch - 7

Switch housing replacement assembly Standard carbon steel housing replacement assemblies are designed for general purpose indoor use installations requiring protection against entrance of dust, water, lint and fiber/oil. Refer to Figure 8. Replacement Kit Part Number Blue Cover Standard housing cover Cover assembly hardware Includes assembly hardware kit 89-6508-001. Carbon steel housing assembly “K” Switch Specifications Supply Pressure: Airline Connections: Maximum Leakage Rate: Maximum Airflow: 100 psi Max. supply pressure 40 psi Max. supply pressure Maximum Process Temp.: Housing...

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Series K Pneumatic Switch - 8

ASSURED QUALITY & SERVICE COST LESS Service Policy Return Material Procedure Owners of Magnetrol may request the return of a control or any part of a control for complete rebuilding or replacement. They will be rebuilt or replaced promptly. Controls returned under our service policy must be returned by Prepaid transportation. Magnetrol will repair or replace the control at no cost to the purchaser (or owner) other than transportation if: So that we may efficiently process any materials that are returned, it is essential that a “Return Material Authorization” (RMA) number be obtained from...

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