Table of Contents
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Models
LP121A/LP200/LP250/LP250W-MT
Updated 03/12
Triplex Ceramic
Plunger Pump
Operating Instructions/
Repair and Service
Manual
Contents:
LP250 and LP250W-MT Specs: page 6
Pump Mounting Selection Guide: page 9
Recommended Spare Parts List: page 10
Warranty Information:
page 2
page 3
page 4
page 5
page 7-9
page 9
page 10
page 11
back page
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Related Manuals for Giant LP121A
Summary of Contents for Giant LP121A
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Page 1: Table Of Contents
Plunger Pump Operating Instructions/ Repair and Service Models Manual LP121A/LP200/LP250/LP250W-MT Contents: Installation Instructions: page 2 LP200 and LP121A Specs: page 3 Exploded View / Kits: page 4 Parts List: page 5 LP250 and LP250W-MT Specs: page 6 Repair Instructions: page 7-9... -
Page 2: Installation Instructions
DO NOT OVERFILL. 3. Acids, alkalines, or abrasive fluids cannot be Use Giant gear lube oil (p/n 1154) or the pumped unless approval in writing is obtained equivalent SAE 90 Industrial gear oil. -
Page 3: Lp200 And Lp121A Specs
Crankshaft Mounting ......................... Either Side Shaft Rotation ....................Top of Pulley Towards Fluid End Weight ..................119 lbs..........54 kg Crankshaft Diameter ..........................35 mm Model LP121A Specifications Metric Volume ..................32.5 GPM ........123.1 LPM Discharge Pressure ..............1740 PSI ..........120 Bar Inlet Pressure ................ -
Page 4: Exploded View / Kits
Exploded View - LP121A, LP200, LP250, and LP250W-MT... -
Page 5: Parts List
Plug 1-1/2” BSP* (LP250, LP250W-MT) *BSP to NPT Adapters/Seals (sold separately) Inlet = 13375 (Adapter) / 13374 (Seal) Discharge = 13373 (Adapter) / 13372 (Seal) LP121A, LP200, LP250 SERIES & LP250W-MT REPAIR KITS Valve Kit Plunger Packing Kits - #09196 Item... -
Page 6: Lp250 And Lp250W-Mt Specs
Specifications Model LP250 and LP250W-MT U.S. Metric Volume .................26.0 GPM ......98.3 LPM Discharge Pressure 2200 PSI 150 Bar ....................Inlet Pressure -4.35 to 90 PSI ..-0.3 to 6.2 Bar ................Speed ..........................1000 RPM Plunger Diameter ..............1.26” ........32 mm Stroke ...................1.65”... -
Page 7: Repair Instructions
LP121A, LP200, LP250, and LP250W-MT - Repair Instructions 2. Remove the compression 3. Remove the complete 1. With a 30mm wrench, spring (45), O-rings and valve assembly (46A-46D) remove the 3 plugs (48). support rings (44A & 44B). with valve pullers. - Page 8 LP121A, LP200, LP250, and LP250W-MT - Repair Instructions 38/38A 8. Remove seal case (37) 9. Check plunger surface (29B). If plunger pipe is worn, loos- from valve casing (43) en tension screws (29C) and pull off plunger pipe to the and inspect O-rings front.
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Page 9: Torque Specifications
LP121A, LP200, LP250, and LP250W-MT - Repair Instructions To Dismantle Gear End After removing valve casing (43) and plunger pipe (29B), drain oil. Remove crankcase cover (4) and bearing cover (14). Loosen connecting rod screws (24A) and push the front of the connecting rod (24) forward as far as possible into the crosshead guide. -
Page 10: Trouble Shooting
Replace plungers Inlet pressure too high Reduce inlet pressure High Crankcase Wrong Grade of oil Giant oil is recommended Temperature Improper amount of oil in crankcase Adjust oil level to proper amount Preventative Maintenance Check List & Recommended Spare Parts List... -
Page 11: Dimensions
LP121A, LP200, LP250 & LP250W-MT Dimensions - mm (in) - Page 12 A Returned Goods Authorization (R.G.A.) number and completed warranty evaluation form is required prior to the return to Giant Industries of all prod- ucts under warranty consideration. Call (419)-531-4600 or fax (419)-531-6836 to obtain an R.G.A.
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