Goulds 3196 Impeller Replacement Guide — Item 101
Identify the correct Goulds 3196 replacement impeller from the installed frame, pump size, OEM reference, existing impeller dimensions or trim, and required material. Use the engineering checks below to prepare an RFQ; final fit and hydraulic configuration must be confirmed against the installed pump.
Production view
Open impeller · Item 101
Start with the Installed Pump Data
The same family includes multiple sizes and configurations. Use the information available to reduce the risk of ordering the wrong impeller.
Goulds 3196 Cold Impeller Clearance Reference
Clearance is not a single value for the entire family. It changes with the drive unit and service temperature.
Scroll horizontally to compare →
| Drive unit | ≤93°C / 200°F | 121°C / 250°F | 149°C / 300°F | 177°C / 350°F | 204°C / 400°F |
|---|---|---|---|---|---|
| STi | 0.005 in / 0.13 mm | 0.006 / 0.15 | 0.007 / 0.18 | 0.009 / 0.22 | 0.010 / 0.25 |
| MTi / LTi | 0.008 / 0.20 | 0.009 / 0.22 | 0.010 / 0.25 | 0.012 / 0.30 | 0.013 / 0.33 |
| XLT-i | 0.015 / 0.38 | 0.016 / 0.41 | 0.017 / 0.43 | 0.019 / 0.48 | 0.020 / 0.50 |
Inspect the Impeller Before Replacement
Check for deep grooves and uneven wear against the applicable IOM criteria.
Check the rear vanes for wear or deformation.
Check for erosion, corrosion, cavitation damage, vane-edge loss, rubbing marks, cracks, and evidence that the installed clearance has changed.
Material Selection for Replacement Impellers
Material family alone does not replace a review of chemistry, concentration, temperature, solids, and project specification. Final material selection depends on the actual fluid, concentration, temperature, solids, and project requirements.
| Family | Designation to verify | What to confirm |
|---|---|---|
| CF8M / 316SS | ASTM grade applicable to the part | Concentration, chlorides, temperature, and solids. |
| CD4MCuN | Duplex grade per documentation | Chlorides, erosion, and project requirements. |
| CN7M / Alloy 20 | Exact grade | Acid, concentration, and temperature. |
| Hastelloy / Titanium | Exact required grade | Complete chemistry and oxidizing/reducing conditions. |
What to Send for an Impeller RFQ
Send the frame, size, OEM reference, current diameter, material, and photographs. If information is missing, the nameplate and removed part can help start the review.
Impeller Replacement Questions
Do all Goulds 3196 frames use the same clearance?
No. The value changes with the drive unit and service temperature; confirm the applicable IOM.
What does Item 101 mean?
It is the position reference used to identify the impeller in the applicable documentation.
Can I request a quote using only “Goulds 3196”?
It is better to include size, frame, OEM reference, material, diameter, or photographs to confirm the configuration.