Choosing an ANSI end-suction process pump for an industrial fluid-handling line usually starts with the same question: how much alloy and condition certainty do you need, and how much are you willing to spend? These two Goulds 3196 pumps answer it from opposite ends. At $3,825 for the LF and $1,625 for the STi, the $2,200 gap in listed prices is enough to steer the decision before you compare any duty point. Both are Goulds 3196 pumps made in the United States, so the shared platform is what makes this a head-to-head rather than a comparison of unrelated machines. The difference is large enough to affect the rest of your project budget, so it is worth getting the alloy and condition decision right before you commit.
Quick verdict
Put the Goulds 3196LF on your shortlist when a fresh wetted assembly and better corrosion resistance are the priority. Put the Goulds 3196 STi on your shortlist when a lower entry price and an existing pump fit the job. The decision is about how much you value new-build certainty versus keeping the initial spend down. There is no universal winner; the fluid, the facility, and the capital budget settle it.
At a glance
| Detail | Goulds 3196LF | Goulds 3196 STi |
|---|---|---|
| Listed price | $3,825 | $1,625 |
| Condition | New | Used |
| Materials | 316 stainless steel | Ductile iron |
| Pump size | 1x1.5-8 | 1x1.5-8 |
| Standout spec | Big bore stuffing box | 6.750-inch impeller, 3500 RPM, 250 PSI nameplate |
Where each pump wins
The LF wins when the process calls for a corrosion-resistant wetted path and a fresh unit. The STi wins when you want the 3196 platform at a much lower upfront cost and can use the listed performance specs instead of starting from a blank sheet.
Product notes
Goulds 3196LF 1x1.5-8 Process Pump 316SS
The reason to give the LF serious attention is the all-316 stainless steel design. Volute, impeller, shaft, and wetted parts are covered, which makes it a natural fit for chemical processing or high-purity fluid lines where corrosion resistance is central. The big bore stuffing box is another point in its favor if you plan to run packing or move to a seal upgrade. The limitation is the upfront cost, which sits at the top of the price range for this pair. For a spec-driven chemical or high-purity project, the LF makes a straightforward argument.
Goulds 3196 STi 1x1.5-8 ANSI End-Suction Centrifugal Process Pump
The STi is the used-pump route into the same family. It brings useful operating details with it: a 6.750-inch impeller, 3500 RPM, 250 PSI per nameplate, and a flood-oil bearing housing, along with an electric power source and a 1 1/2-inch inlet and 1-inch outlet. Its ductile-iron construction is common in chemical, pulp and paper, and general industrial fluid handling. The reason to pick it is the lower upfront cost plus those performance details. The trade-off is used condition and iron-based metallurgy, which makes it less suited for aggressive chemical service.
Final choice by use case
Match the pump to the duty: the Goulds 3196LF is the pick for defined high-purity or chemical process lines; the Goulds 3196 STi is the pick when you want to keep the initial spend down and the unit's condition fits your facility.
