B75-1B20-JDG datasheet(4/8 Pages) MAGNETROL

Part #	B75-1B20-JDG

Description	Bleed Type Valve for Liquid Level Switches

PDF	8 Pages

Scroll/Zoom	100%

Manufacturer	MAGNETROL [Magnetrol International, Inc.]

Direct Link	http://www.magnetrol.com

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4 / 8 page

3.0

Reversing Pilot Action

All Series J Pneumatic Switch Mechanisms are shipped from

the factory set-up for direct action; closed at high level.

They can be field modified for the reverse (open) position

by following the steps below:

1. First remove the upper shoulder screw from the actuator

link and move 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.

The switch is now setup for reverse action.

42-685 Series J Pneumatic Switch Mechanism

Figure 4

Fall out spring

Reverse

position

Enclosing tube

Direct position

Air line

adapter

Spring bracket

Reverse position

Upper shoulder

screw

Actuator link

Air line

adapter

Enclosing tube

Direct position

Figure 3

B75-1B20-JDG Datasheet(PDF) 4 Page - Magnetrol International, Inc.