Installation, Operation, Maintenance Disassembly and
Assembly Instructions for Models AL312P, AL313P, AL314P,
AL315P Globe and Angle
Valves
Removal of any Globe or Angle Valve for Repair or Replacement
Before installation or removal of any globe or angle valves, the system must be purged completely of all product. Use proper safety
equipment at all times. An abundant supply of clean water must be readily available and easily accessible as a means of providing
IMMEDIATE First Aid treatment for exposure to ammonia. To insure long term safe operation, the manufacturer recommends that under
normal service conditions this product should be inspected at least once every five (5) years and be repaired or replaced as required. To
prevent the accidental opening of any valve, never carry or grasp a valve by its handwheel or handle.
CAUTION:
Contact with or inhalation of Liquid Anhydrous Ammonia or L-P Gas or their vapors can cause serious injury or death.
Dispersement must be in accordance with local regulations.
For the proper handling and storage of Anhydrous Ammonia refer to ANSI Standard K61.1.
For the proper handling and storage of Liquified Petroleum Gas refer to NFPA Pamphlet 58.
TOOLS REQUIRED:
Safety Equipment (i.e. gloves, goggles, and clothing), 12" Adjustable Wrench, 9/16" Open End Wrench & 18" Pipe Wrench
REFER TO FIGURE 1 FOR THE FOLLOWING STEPS:
Step 1:
Safety equipment (i.e. gloves, goggles and clothing) must be worn before continuing with the next step.
Step 2:
Before removing valve from tank, place in FULL OPEN POSITION to insure all pressure is bled from system.
Note:
See Warning at top of page.
Disassembly Procedure For Repair
REFER TO FIGURE 1 FOR THE FOLLOWING STEPS:
Step 1:
With valve secured in a bench vise, remove the four Hex Bolts (20). Remove the complete bonnet (5) and
stem assembly. Note: It is important to inspect Disc Holder rotation. If it does not rotate freely, do not use valve
but consult your local dealer for instructions. Remove old Gasket (16).
Step 2:
Secure Bonnet (5) in a bench vise and remove Handwheel Nut (1), Washer (21), and Handwheel (2).
Step 3:
Remove Disc Nut (10), Disc Washer (9), and Disc (8).
Step 4:
Remove Packing Nut (4), Chevron Packing (12), Male Adapter (13), Packing Spring (15) and Packing Nut Gasket (14)
over the end of Stem (3).
Step 5:
Rotate Stem (3) clockwise (CW) using Handwheel (2) if necessary, until stem is disengaged from Bonnet (5).
Step 6:
Before reassembly, clean and inspect the valve seat at (A). Clean all metal components with solvent and wipe or blow
dry with air.
Form FVC 022 - Rev. 1
REFER TO FIGURE 1 FOR THE FOLLOWING STEPS:
Step 1:
Install Disc (8), [with injection marks against the Disc Holder (7)], Disc Washer (9), and Disc Nut (10) to Disc Holder (7).
Secure Disc Nut (10) to threads of Disc Holder (7) with center punch mark at thread interface.
Step 2:
Lubricate threads of stem with a good quality grease and install Stem (3) into Bonnet (5) until Disc Holder (7) rests against
bottom of bonnet.
Step 3:
With the bonnet and stem assembly secured in a bench vise install Packing Nut Gasket (14) and Packing Spring (15).
Step 4:
Replace O-ring (11) in groove of Packing Nut (4).
Step 5:
Install Chevron Packing (12) and Male Adapter (13) into Packing Nut (4).
Step 6:
Lubricate exposed surface of Stem (3) with John Crane Style 279A Packing Lubricant or equal.
Step 7:
Place block under Disc Holder (7) to keep stem and disc holder assembly from backing out when installing packing nut
assembly to bonnet (5). Place Packing Nut (4) with packing in place over Stem (3) and engage bonnet threads in Bonnet
(5). Rotate Packing Nut (4) while making contact with bonnet threads. Tighten packing nut with torque wrench to 55 ft-lbs.
Step 8:
Secure Body (17) in vise. Place Body Gasket (16) onto body.
Step 9:
Place bonnet assembly on top of Body making sure that all four bolt Holes line up, install four bolts and tighten the bolts
with torque wrench to 55 ft-lbs.
Step 10:
Install Handwheel (2), Washer (21) and tighten Handwheel Nut (1) on Stem (3).
Step 11:
Check stem packing and valve seat for leaks. Operate handwheel full open to full closed to insure smooth operation.
Assembly Procedure
(OVER)
WARNING
KEEP THIS DOCUMENT WITH THE PRODUCT UNTIL IT REACHES THE END USER.
June 2000