Gardner Denver PZ-11 11” Stroke Triplex Mud Pump PZ-11 Data Electrical Connection Panel Flex 3 Drive Belt Adjustm
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Gardner Denver PZ-11 11” Stroke Triplex Mud Pump
PZ-11 Data
Electrical Connection Panel
Flex 3
Drive Belt Adjustment Screws Flex 3
Flex 3
Drive Belt Adjustment Screws
Flex 4
Drive Adjustment Slots
Lube Oil Pump
Liner Wash Pump & Sump
Water Trap Drain
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Crosshead Inspection Plate
Suction A/O Knife Valve
Suction Stabilizer
Fluid End View
Centrifugal Charging Pump
Discharge Pulsation Dampener
Suction Header and Drain Valve
Power End Inspection Window
H&P Superscrew Valve Cap Torque Spec’s 100 lbs 1st Pass 200 lbs 2nd Pass
View Into Rod Bay
Special modified rod clamp
Two piece piston rod
H&P Liner Retention System
Superbolt Retainers
Lower View of LRS Compression Sleeve
Splash Shield
Installation of the H&P Liner Retention System (LRS) in Gardner Denver PZ-11 mud pumps
Super Bolt Liner Retention System
Clean both faces of the wear plate, and the gasket counter bore (in the module) using a light scuff pad (non metallic, not emery cloth) and a light oil lubricant. Clean the pilot bore surface with a wire wheel, and lubricate the cleaned surface with a high-temperature, grease-based, anti-galling compound (Never Seize, Copper Kote, or similar).
Super Bolt Liner Retention System Install a new CDI pressure energized (spring supported) wear plate gasket (GD part # 314PZL316). Install the wear plate Install a new CDI pressure energized liner gasket (GD part # 316PZL316) into the Southwest 1377B liner groove. The Southwest 1377B liner has an effective bore length of 14.625″. Insert the liner into the pilot bore, and slide it toward the module until it makes contact with the wear plate. Slide the new LRS liner clamp plate over the liner and onto the studs.
Super Bolt Liner Retention System Apply a grease-based, molybdenum disulfide, anti-galling compound (Fel-Pro 670, Sweeney 503, or Loctite 51048) to the exposed length of the four corner studs, as well as the load face of the jackbolts and the hardened washer. Install the hardened washer and Superbolt multi-jackbolt tensioner onto each of the two upper studs, outboard corners.
Multijackbolt tensioner
Hardened washer
LRS stud extender
Super Bolt Liner Retention System Install an LRS stud extender onto each of the two lower studs, outboard corners. Using an open-end wrench, or a socket and drive, lightly snug the multijackbolt tensioners and the stud extenders against the new liner clamp plate, to hold the liner in place against the wear plate. Slide an LRS compression sleeve over each of the two stud extenders.
LRS stud extender
LRS compression sleeve
Super Bolt Liner Retention System Install a hardened washer and multi-jackbolt tensioner onto each of the two stud extenders, to hold the compression sleeves in place. Starting with the tensioner at the 10:00 position, back the entire tensioner off 1/4 turn. At the 10:00 position tighten the 3 jackbolts to 55 ft.lbs each, using a torque wrench and a 6-point 5/8″ socket. 10:00 position (1st)
7:00 position (3rd)
2:00 position (4th)
5:00 position (2nd)
•Repeat at the 5:00 position, then the 7:00 position, and last the 2:00 position. The sequence and cross pattern is important to help ensure that the gaskets are squarely loaded.
Super Bolt Liner Retention System Return to the tensioner at the 10:00 position, and tighten the jackbolts to 110 ft.lbs each, using a torque wrench and a 6point 5/8″ socket. Repeat at the 5:00 position, then the 7:00 position, and last the 2:00 position. The sequence and cross pattern is important to help ensure that the gaskets are squarely loaded. Check all jackbolts to ensure that they are torqued to at least 110 ft.lbs (do not exceed 125 ft.lbs).
Line Discharge Valve Open to put pump on line Close to take off of line Demco 5” 5,000 psi gate valve
Pressure Relief System
Preset Relief Valve (Pop-Off Valve)
Manual relief valve Demco 2” 5,000 psi
Discharge cross & strainer
Mud Line Connection Note the extremely large nut and extended neck This is a 1003 mis-aligning union. It makes a more Stable connection when pipe is not lined up perfectly
Mud Line Connection
Note the deep rounded bowl in the female Connection, This allows the male end to Seal without being straight.
H&P Special Parts Lists
H&P Special Parts Lists
H&P Special Parts Lists
H&P Special Parts Lists
ANY QUESTIONS? Prepare a JSA to change Piston and liner using H&P LRS. Prepare a JSA to change a suction valve and seat.