Section 43 23 13 — Centrifugal Pumps for Slurry / Mining Duty
MasterFormat classifies this as Overhung Horizontal Centrifugal Pumps — there is no dedicated "slurry pump" section. Real Schurco Slurry USA S/L/H/V/U series data for the mining-duty spec written under this general category.
CSI Section 43 23 13 covers overhung horizontal centrifugal pumps. MasterFormat has no separate slurry pump section, so slurry duty is specified through liner, impeller and seal selection. A compliant submittal states solids content and particle size, specific gravity, flow and head, abrasiveness and corrosivity, and duty cycle. The duty point picks the Schurco Slurry series.
Have a 43 23 13 spec section calling for slurry duty? Send it and get a real model match, not a catalog guess.
Request a Spec Review →Overhung Horizontal Centrifugal Pumps — Slurry Duty Is a Spec Detail, Not a Separate Code
Section 43 23 13 (Overhung Horizontal Centrifugal Pumps) sits under Division 43 20 00 (Liquid Handling Equipment). MasterFormat does not have a distinct section number for "slurry pumps" or "mining pumps" — a heavy-duty abrasive-slurry centrifugal pump is specified within this same general category, with the abrasive/corrosive/high-solids duty driven by material selection (liner, impeller, seal architecture) rather than a different CSI code. Verify any spec that cites a different number for slurry-specific pumps before treating it as a real MasterFormat classification.
Provide This to Get a Real Match Against the Section
| What to Provide | Why It Matters |
|---|---|
| Solids content (% by weight) and particle size | Determines liner material (metallic vs. elastomeric), impeller design, and whether a slurry-rated pump family is required at all versus a standard centrifugal. |
| Specific gravity of the slurry | Directly changes head/flow performance and driver sizing — Schurco's own spec tables are published against clear water, and SG must be applied as a correction factor. |
| Required flow (gpm) and head (ft) | Schurco's 7-series lineup spans a wide range — S Series (max 22,000 gpm) to L Series (max 30,000 gpm, the highest-volume pump in the catalog) to H Series (max 750 psig at only 3,000 gpm) — the duty point picks the series, not the other way around. |
| Abrasiveness / chemical corrosivity of the process fluid | Determines metallic-liner vs. elastomeric-liner vs. unlined high-chrome-alloy (U Series) construction, and whether a combined corrosion+abrasion material (e.g. glass-ceramic matrix composite) is needed elsewhere in the circuit. |
| Duty cycle — continuous vs. intermittent, sump/pit application | Governs seal architecture selection — Schurco's V Series is fully cantilevered with no submerged bearings, seals, or packing, purpose-built for sump/pit/tank service where a submerged shaft seal is a liability. |
Schurco Slurry USA — 5 of 7 Series
| Series | Material | Size / Capacity | Notes |
|---|---|---|---|
| S Series | Metallic or elastomeric liners | Discharge 1"-18", head max 240ft, flow max 22,000 gpm, working pressure max 300 psig | General-duty heavy slurry pump. |
| L Series | Alloy or thick elastomer liners | Discharge 4"-22", head max 180ft, flow max 30,000 gpm, working pressure max 250 psig | Highest-volume pump in the catalog; 90+% efficiency. |
| H Series | High-chrome liners | Discharge 1"-6", head max 325ft, flow max 3,000 gpm, working pressure max 750 psig | The clear high-pressure outlier — low flow, high head/pressure tradeoff. |
| V Series | 27% chrome alloy casing (metal) or molded rubber casing | Discharge 1.5"-10", head max 160ft, flow max 4,500 gpm | Fully cantilevered — no submerged bearings, seals, or packing; double-suction impeller eliminates shaft seals for sump/pit service. |
| U Series | Unlined, high-chrome alloy hardened >650 Brinell | Discharge 2"-10", head max 240ft, flow max 6,000 gpm, working pressure max 150 psig | Unlined construction — the alloy itself is the wear surface. |
Source: Schurco Slurry USA's own catalog documentation. Full 7-series table (including Z and P series) at the Schurco Slurry USA manufacturer page →.
Section 43 23 13 FAQ
Is there a dedicated CSI MasterFormat section number for "slurry pumps"?
No — MasterFormat does not carve out a distinct number for slurry pumps. The applicable general category is Section 43 23 13 (Overhung Horizontal Centrifugal Pumps) under Division 43 20 00 (Liquid Handling Equipment). Slurry/abrasive-solids duty is a specification detail — liner material, wear-part hardness, impeller design — applied within this general section, not a separate CSI number. Any specification claiming a distinct "slurry pump" MasterFormat code should be verified, not assumed.
What determines which Schurco Slurry series to specify?
The duty point — flow, head, and working pressure — determines the series first, then solids content and abrasiveness determine liner material within that series. The S Series covers the broadest general-duty range; L Series is the highest-volume option at up to 30,000 gpm; H Series trades flow for pressure (up to 750 psig at only 3,000 gpm max); V Series is purpose-built for sump/pit service via its cantilevered, sealless design.
When is an unlined high-chrome-alloy pump (U Series) the right call instead of a lined pump?
When the wear surface itself needs to be the hardened material rather than a replaceable liner — U Series uses unlined, high-chrome alloy hardened above 650 Brinell, where the alloy body is the wear surface. Lined pumps (S/L Series) let the liner absorb wear and be replaced without the pump casing itself wearing out, which is the more common choice for continuous heavy-solids duty.
What seal options are available across the Schurco slurry pump line?
Three shared options across the line: Stuffing Box (packing rings, requires seal water), Expeller (waterless centrifugal seal for moderate suction conditions), and cartridge-style Mechanical Seal for high-pressure, high-temperature, or corrosive/abrasive slurries. The V Series avoids this decision entirely via its sealless cantilevered design.
Working a 43 23 13 spec calling for slurry/mining duty?
Send James the spec section and the slurry's solids content, SG, and abrasiveness — get a real Schurco series match back.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated