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Repair Kits Available By Part Number Section 2 Page - GAMECO

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WARNING: Installation, usage and maintenance of this product<br />

must be in compliance with all Engineered Controls International,<br />

Inc. instructions as well as requirements and provisions of NFPA<br />

#54, NFPA #58, DOT and all applicable federal, state, provincial and<br />

local standards, codes, rules, regulations and laws.<br />

Inspection and maintenance on a periodic basis is essential. Installation<br />

and maintenance should be performed only by qualified<br />

personnel.<br />

Be sure all instructions are read and understood before installation<br />

and operation.<br />

CAUTION: Contact or inhalation of liquid propane, ammonia and<br />

their vapors can cause serious injury or death! NH3 and LP-Gas<br />

must be released outdoors in air currents that will insure dispersion<br />

to prevent exposure to people and livestock. LP-Gas must be kept<br />

far enough from any open flame or other source of ignition to<br />

prevent fire or explosion! LP-Gas is heavier than air and will not<br />

disperse or evaporate rapidly if released in still air.<br />

Application<br />

The RegO ® A7853PA Pneumatic Actuator is designed especially for<br />

operating RegO ® A7853A 3-Way Valves used in conjunction with<br />

RegO ® A7883FK and A7884FK Flomatic ® Internal Valves. This<br />

Pneumatic Actuator provides a simple and convenient means to<br />

open and close the A7853A 3-Way Valve which controls the differential<br />

pressure into the Flomatic. This differential pressure opens<br />

and closes the Flomatic ® Valve.<br />

The A7853PA is only for use on the RegO ® A7853A 3-Way Valve<br />

when used in conjunction with RegO Flomatic ® Internal Valves. Do<br />

not use actuator in other applications. Responsibility for proper<br />

installation must be assumed and met by the installer.<br />

How The Pneumatic Actuator Works<br />

The A7853PA Pneumatic Actuator can be pressurized with an<br />

existing pneumatic system. The actuator is designed to move the<br />

A7853A 3-Way Valve’s lever to the “Up & Open” position when<br />

pressure is applied and return it to the “Down & Closed” position<br />

upon loss of pressure. The A7853PA operates with a minimum<br />

pressure of 50 psig and a maximum operation pressure of 150 psig.<br />

A7853PA Pneumatic Actuator<br />

for use on A7853A 3-Way Valves<br />

in Flomatic ® Installations<br />

Pneumatic Actuator Installation<br />

1. Before beginning installation of the A7853PA, verify that the<br />

following requirements are met:<br />

a. The LP-Gas system is shut down to prevent accidental<br />

operation of the system and to prevent the escape of LP-Gas<br />

during the installation.<br />

b. Installation must only be performed by qualified personnel,<br />

fully proficient with compressed air systems.<br />

c. There is sufficient space at the A7853A 3-Way Valve to<br />

accommodate the pneumatic actuator. Hoses and wires<br />

must not be jeopardized by the operation of the actuator.<br />

d. A flat mounting surface exists for mounting the pneumatic<br />

actuator. This may be part of a truck frame. The back side<br />

area of this surface must be inspected for any devices which<br />

could be damaged from drilling during installation.<br />

e. The A7853A 3-Way Valve must be mounted securely. System<br />

piping alone is not sufficient to hold the valve securely<br />

when using the actuator. There are (2) 3 /8" x 16 UNC bosses<br />

located on the back of this valve for mounting.<br />

2. Disconnect any devices that are attached to the lever of the<br />

A7853A 3-way Valve.<br />

3. If the lever of the A7853A Valve is:<br />

a. flat with a milled slot in the middle – proceed to Step 6.<br />

b. round without a milled slot – continue with Step 4.<br />

CAUTION: Be sure the lever does not flip to the "Up & Open"<br />

position during this installation.<br />

4. Carefully remove the roll pin securing the lever to the valve stem.<br />

Use an appropriately sized punch and hammer if needed.<br />

A7853A-75H Lever<br />

“UP & OPEN”<br />

Pneumatic<br />

Actuator<br />

Installation<br />

Milled Slot<br />

17<br />

/32"<br />

“DOWN &<br />

CLOSED”<br />

* Bracket Lock Nut<br />

Mounting Bracket *<br />

* Yoke Lock Nut<br />

1<br />

/4" Drill<br />

* Yoke Pneumatic Actuator *<br />

3<br />

/4"<br />

Reference Point<br />

Air from Palm Switch<br />

3<br />

/4"<br />

Roll Pin<br />

4 3 /32"<br />

1<br />

/4" Drill<br />

3 - Way Valve<br />

LP-Gas from<br />

Pump Outlet<br />

LP-Gas to<br />

Pump Inlet<br />

Port 3<br />

Air to Pneumatic Actuator Port 1<br />

LP-Gas to<br />

Port 2<br />

Flomatic ®<br />

Top View of Actuator Mounting and Yoke<br />

* E-Ring<br />

* Pin<br />

* E-Ring<br />

Mounting Plate<br />

* Mounting Bracket<br />

* Yoke<br />

Nut *<br />

Lock Nut *<br />

Spacer *<br />

Washer *<br />

Cap Screw *<br />

Air Dump<br />

Air Source<br />

Palm Switch<br />

A7583A-74<br />

*<br />

Designates items included in this kit.

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