PumpCatalog Pump Guides & Troubleshooting
Expert guides, maintenance tips, and pump selection advice from authorized PumpCatalog pump distributors.
Maintenance14 min read
AODD Pump Repair Kits: Wet End vs Air End
Wet-end kits replace diaphragms, balls, and seats. Air-end kits rebuild the air valve. This guide shows how to read the model code, pick the elastomer, and decide OEM vs aftermarket without a dead-link catalog path.
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Technical Information15 min read
Chemical Metering Pump Guide: Size and Select
A chemical metering pump is a positive-displacement feeder, not a transfer pump. This guide covers solenoid vs motor-driven drives, turndown, GPH and pressure math, liquid-end materials, and the LMI series we actually stock.
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Pump Selection15 min read
How to Choose a Drum Pump for Chemicals
The liquid picks the tube, the container picks the length, and the work area picks the motor. This guide covers barrel pump materials for chemicals, air versus electric drives, flow and viscosity limits, and the accessories that change delivered flow.
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Pump Selection15 min read
Food Processing Pumps: Sanitary Selection Guide
A plant engineer's guide to sanitary pump selection for food processing: what 3-A and EHEDG actually certify, when centrifugal beats a PD pump, and how 50 Hz vs 60 Hz changes flow and head.
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Technical Information15 min read
Goulds Aquavar VFD Guide: Choose the Right Drive
A Goulds VFD is not a generic motor drive with a pump sticker. This guide walks the current Aquavar and Hydrovar lineup, the affinity-law math that decides payback, and the jobs where a fixed-speed pump is still the better buy.
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Technical Information15 min read
How to Read Pump Curves: Duty Point, BEP, and NPSH
A pump curve is the only honest way to size a centrifugal pump. This guide shows you how to read flow, head, BEP, NPSHr, and impeller trims on real Goulds 3656 and Berkeley B3ZRM sheets from our document library.
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Troubleshooting13 min read
Identify Pump Replacement Parts from the Nameplate
A nameplate photo plus the model number will get you the right seal, impeller, or kit faster than a parts guess. This guide shows what to read, which number a distributor actually needs, and where AMT, March, Flotec, Simer, and Godwin parts live on PumpCatalog.
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Maintenance15 min read
Pump Seal Replacement and Goulds Repair Kit Guide
A leaking mechanical seal is a kit problem until it is a stack or pump problem. This guide covers failure symptoms, seal types, nameplate kit ID, repair vs replace, and the Goulds e-SV seal change.
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Pump Selection15 min read
Sump, Sewage & Effluent Pump Selection Guide
Sump, sewage, and effluent pumps are not interchangeable. This guide uses solids-handling sizes, basin and head math, switch types, and the Hydromatic, Barnes, Goulds, and Myers lineups we stock to pick the right pump the first time.
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Pump Selection15 min read
Goulds Well Pump Sizing Chart: GPM, TDH, and HP
Horsepower is the last number, not the first. This guide shows how to turn fixture count and well TDH into a Goulds 10GS chart pick, then decide jet versus submersible.
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