Installation, Operation, Maintenance Disassembly and
Assembly Instructions for Models AL308P, AL309P,
AL310P, AL311P Globe and Angle Valves
June 2000 Form FVC 020 - Rev. 1
WARNING
KEEP THIS DOCUMENT WITH THE PRODUCT UNTIL IT REACHES THE END USER.
TOOLS REQUIRED: Safety Equipment (i.e. gloves, goggles, and clothing), 12" Adjustable Wrench and 18" Pipe Wrench
Removal of any Globe or Angle Valve for Repair or Replacement
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:
An 18" Pipe Wrench will be required. 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 Bonnet (5) from the Body (17), which will expose the complete
Bonnet and Stem Assembly.
Note:
It is important to inspect Disc Holder (7) rotation. If it does not rotate freely, do not use valve. Consult your local
dealer for instructions. Remove old Gasket (16).
Step 2: Secure Bonnet (5) in a bench vise and remove both Handwheel and Disc Nuts (1).
Step 3: Remove Disc Washer (9), Disc (8), Lock Washer (10), and Handwheel (2).
Step 4: Remove Packing Nut (4), Chevron Packing (12), Male Adapter (13), and Packing Spring (15) over end of Stem (3).
Step 5: Rotate Stem (3) clockwise (CW) using Handwheel (2) if necessary, until stem is disengaged from Bonnet (5). Remove
old Gasket (14).
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.
Assembly Procedure
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 (1) to Disc Holder (7).
Secure Disc Nut (1) 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 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 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) over bonnet threads and lubricate threads with a good quality grease.
Step 9: Install bonnet assembly into body and tighten with torque wrench to 95 ft-lbs.
Step 10: Install Handwheel (2), Lock Washer (10) 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.
(OVER)
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 of 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 LP-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.
