A120MAN IOM
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While this information is presented in good faith and believed to be accurate, Individuals using this literature must exercise their independent judgment in evaluating product selection and determining
product appropriateness for their particular purpose, system requirements and certifications. The manufacturer reserves the right to change product designs and specifications without notice.
Operation Of The A125-45A, A125-60A, A15-45A, & A15-60A Valves
Maintenance
1. See that the manual release is properly connected, works freely and is not worn.
2. Make sure there are no obstructions or debris to block the valve and lever from closing.
3. Make sure that both cables move freely inside the Break-Away Coupling.
CHECK ACTUATOR PERIODICALLY FOR THE FOLLOWING:
Pull on the Loop End of the Cable. The plunger will retract to allow the lever to move. The closing
spring causes the valve to close.
The operator must always be aware of where the remote closure controls are located and know
how to operate the controls if an emergency requires valve closure. When finished, make a habit
of closing the internal valve from the remote closure point, thus checking to see that the control
actually is capable of closing the valve and operating correctly.
To Close Valve
Open
To Open Valve
1. Always open the internal valve before opening any other valves in the line.
2. Move the lever to the half-open (rapid equalization) position (Operational Schematic Figure 1, View #2 - A120,
A125, A15 IOM) to equalize pressure. When the main poppet clicks open, move the operating lever fully open.
3. Open other line valves slowly to avoid sudden surges which could slug the excess flow valve shut.
4. If the excess flow valve does close, close the nearest downstream valve. Move the internal valve’s operating
lever back to the rapid equalizing position (outlined in step 2) and wait for the valve to click open. Then move
the operating lever fully open and slowly open the downstream valve.
Closed
Since there is strong spring force on the operating lever, avoid getting in the way of the lever
as it moves to the closed position. Failure to do so could result in personal injury.
!
WARNING
DO NOT Force open lever against NH3 Nurse Tank flow before pressure is equalized on each side of the main valve disk.
DO NOT Modify the Cable/Carabinier Assembly. Could cause Injury or Death! Only Use Squibb Taylor Replacement Parts.
!
CAUTION
ONLY PERSONNEL TRAINED IN THE PROPER PROCEDURES, CODES, STANDARDS & REGULATIONS OF THE ANHYDROUS AMMONIA
INDUSTRY SHALL PERFORM
MAINTENANCE ON THIS EQUIPMENT. Before starting any type of maintenance, close off the A120MAN
valve(s) & remove all Anhydrous Ammonia (NH3) pressure from the Outlet of the Internal Shutoff Valve. If maintenance or repairs are to
be made on the internal valve(s), refer to the Instruction Manual for the particular valve model. An A120MAN manual release that has
been disassembled must be tested for proper operation before being returned to service.
!
WARNING
Assembled Valve & Manual Release is now an Emergency Shutoff Valve
for Anhydrous Ammonia (NH3) Nurse Tank.
• Test For Proper Operation @ A Minimum Of Once A Month & Daily During Field Application Periods.
• Always Test Operation Before Sending To Field For Use.