This guide explains how to identify the casing, suction sideplate, impeller, shaft, sleeve and seal-area components commonly requested for 3175 paper-stock and process pumps.
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For a family-level comparison, see 3175 vs 3180 paper-stock pump selection. For non-standard casting or machining scope, see Custom OEM Casting & Machining.
What to send for a 3175 parts quote
- Pump size and nameplate
- OEM/part number if available
- Required component: casing / impeller / sideplate / shaft / sleeve / seal-area part
- Material
- Controlled dimensions or drawing
- Damaged-part photographs
- Current duty when impeller trim/performance is involved
- Inspection/documentation requirements
Design features that affect part identification
The official Goulds 3175 brochure positions the 3175 for paper stock, fibrous or stringy material, abrasive slurry and corrosive process service. Its published construction includes a fully open impeller, renewable suction sideplate, back pull-out maintenance and optional dynamic-seal arrangements.
Those features create several part interfaces that must be checked during a repair. Sideplate clearance affects wet-end performance; impeller geometry and trim affect the curve; shaft, sleeve and seal-chamber dimensions affect mechanical fit. The model designation alone does not identify those details.
Common 3175 parts and the evidence each one needs
| Part | Identification and fit checks | Useful release evidence |
|---|---|---|
| Casing | Pump size, casting/part number, flange drilling, casing joint, wall condition and material | Approved drawing, dimensional report, material traceability and pressure test where specified |
| Suction sideplate | Size, mating register, bolt pattern, wear surface, clearance relationship and material | Drawing or measured sample, dimensional report and material record |
| Impeller | Size, part number, bore, diameter/trim, vane configuration, key/thread details and material | Dimensional report, material verification and balance record appropriate to the design |
| Shaft | Frame, overall length, bearing and seal fits, thread/keyway details, runout and material | Controlled drawing, dimensional/runout report and material certificate |
| Shaft sleeve | Shaft fit, seal diameter, length, finish, drive feature and material | Dimensional and surface-finish report plus material verification |
| Seal chamber or stuffing-box cover | Pilot, bolt pattern, depth, throat/bushing interface and seal arrangement | Mating drawing, dimensional inspection and material record |
| Repeller-related parts | Installed seal arrangement, clearances, bore/shaft interface and material | Sectional drawing and configuration-specific inspection record |
Identify the installed pump before requesting a part
Start with the nameplate and record model, pump size, serial number and speed. Then look for the OEM part number, sectional drawing, GA drawing and any casting marks. Photograph the complete assembly before removing it, followed by the damaged area and each mating surface.
Measurements should use named reference points. “About 200 mm” is not enough for an impeller bore, casing pilot or sleeve diameter. Note the measuring tool, unit and whether the value came from an unworn area. If the old part is eroded or corroded, state which dimensions may no longer represent the original geometry.
Diagnose the failure before repeating the material
The original material is useful evidence, but it is not automatically the correct replacement material. First distinguish the likely damage mechanism:
- Uniform corrosion: review chemistry, concentration, temperature and contaminants.
- Localized attack: record pitting, crevice locations, deposits and chloride or oxidizing conditions where relevant.
- Erosion or abrasive wear: record solids concentration, particle hardness, velocity and wear pattern.
- Clearance loss: check the sideplate, impeller and casing relationship rather than replacing only the visibly damaged part.
- Seal leakage: inspect shaft/sleeve condition, runout, seal-chamber interfaces and operating history.
- Fibre damage or plugging: review impeller configuration, suction conditions and actual stock characteristics.
For alloy components, request the casting grade or wrought grade appropriate to the part. Do not treat a trade name as a complete material specification. Chemical compatibility still depends on process concentration, temperature, contaminants, solids and flow conditions.
Illustrative impeller review
This example shows the verification sequence and is not a customer case.
A buyer sends an impeller photograph and says the pump is a 3175. The photo confirms an open impeller but does not show the bore, trim or exact size. The supplier requests the nameplate, pump size, OEM part number if available, bore and key/thread details, maximum outside diameter, material and duty data. The damaged sample is measured only after noting wear on the vane tips and hub.
The quote then states the drawing revision, proposed diameter/trim, bore interface, material and inspection records. Without those details, a visually similar impeller could mount incorrectly or move the operating point.
Decide between one part, a repair kit and a complete pump
One part may be appropriate when the mating components remain within tolerance and the failure cause is understood. A planned wet-end package can be safer when the impeller, sideplate and casing clearances are all worn. A complete pump review is appropriate when the base duty, material, power end or installation has changed, or when several major components have reached the end of useful life.
Ask the quotation to separate included parts, excluded parts, required field dimensions and engineering hold points. This prevents an urgent repair from becoming an undefined “drop-in” claim.
Related engineering resources
Before ordering, start an OEM part-number cross-reference, review what ANSI B73.1 compatibility does and does not confirm, and use our replacement-parts ordering checklist.
FAQ
Can one 3175 sideplate be supplied?
Yes, after confirming pump size, part identification, mating dimensions, wear condition and material.
Is an impeller quote possible without an OEM part number?
Yes, but the pump size, controlled dimensions, material and hydraulic information are needed to reconstruct and verify the scope.
Which inspection records should be requested?
Use a risk-based plan. Typical records include an approved drawing, dimensional report, material traceability or PMI, impeller balance and casing pressure test when specified.
Sources and review method
This guide was checked against the official Goulds 3175 brochure and 3175 IOM. OEM design descriptions are used for part identification and technical comparison only. They do not establish Yingsiman supply coverage for every size, material or component.
Read the 3175 paper stock process pump page, compare the 3180 paper stock process pump, or begin an OEM part-number cross-reference.
Editorial and trademark note
Prepared by the ANSI Pumps Pro editorial team from official OEM literature and the replacement-review workflow used by ANSI Pumps Pro / Yingsiman. Last source review: August 9, 2026. Final fit and material remain subject to engineering verification. ITT Goulds and referenced model designations are trademarks or product identifiers of their respective owners and are used only for identification and replacement-reference purposes. ANSI Pumps Pro / Yingsiman is not affiliated with, sponsored by or endorsed by ITT Goulds.
Have an OEM Part Number or Drawing?
If the request starts with an OEM part number, drawing reference or existing component photo, use the OEM Part Number Cross-Reference or send the reference with the installed 3175 model and size for review.
