STP2
2x2 Trash Pump
- Suction x Discharge
- 2" x 2"
- Max Flow
- 218 gpm
- Shutoff Head
- 85.5 ft
- Solids Handling
- 1.5"
- Impeller Diameter
- 6.38"
- Drive
- Diesel or electric
STP Series
STP Self-Prime Trash Series
The STP Series is comprised of trash pumps and parts that are 100% interchangeable with the Gorman-Rupp Super T Series®. These self-priming trash pumps are a high solids handling, low maintenance series of pump.
The STP model is offered in sizes 2"–10", each equipped with an easily replaceable rotating assembly. The adjustable 4-bolt front cover can be removed to clear debris from the interior of the pump. Available in diesel or electric drive.
PDF · 2 pages · AMCO-STP-Series-Datasheet.pdf
STP self-priming trash pump ends staged for build
5 shop photos — click to zoom and pan
Specifications
STP models
Performance figures are nominal at the stated engine speed. Contact us for a duty-point curve on your application.
STP3
3x3 Trash Pump
- Suction x Discharge
- 3" x 3"
- Max Flow
- 460 gpm
- Shutoff Head
- 111 ft
- Solids Handling
- 2.5"
- Impeller Diameter
- 8.75"
STP4
4x4 Trash Pump
- Suction x Discharge
- 4" x 4"
- Max Flow
- 810 gpm
- Max Head
- 135 ft
- Solids Handling
- 3"
- Impeller Diameter
- 9.75"
STP6
6x6 Trash Pump
- Suction x Discharge
- 6" x 6"
- Max Flow
- 1640 gpm
- Shutoff Head
- 152 ft
- Solids Handling
- 3"
- Impeller Diameter
- 12.38"
STP8
8x8 Trash Pump
- Suction x Discharge
- 8" x 8"
- Max Flow
- 2840 gpm
- Max Head
- 128 ft
- Solids Handling
- 3"
- Impeller Diameter
- 14.75"
STP10
10x10 Trash Pump
- Suction x Discharge
- 10" x 10"
- Max Flow
- 3290 gpm
- Shutoff Head
- 175 ft
- Solids Handling
- 3"
- Impeller Diameter
- 13.25"
- Drive
- Diesel or electric
STP model comparison
Key specifications for every STP model side by side. Figures are nominal at the stated engine speed.
| Specification | STP22x2 Trash Pump | STP33x3 Trash Pump | STP44x4 Trash Pump | STP66x6 Trash Pump | STP88x8 Trash Pump | STP1010x10 Trash Pump |
|---|---|---|---|---|---|---|
| Suction x Discharge | 2" x 2" | 3" x 3" | 4" x 4" | 6" x 6" | 8" x 8" | 10" x 10" |
| Max Flow | 218 gpm | 460 gpm | 810 gpm | 1640 gpm | 2840 gpm | 3290 gpm |
| Shutoff Head | 85.5 ft | 111 ft | — | 152 ft | — | 175 ft |
| Solids Handling | 1.5" | 2.5" | 3" | 3" | 3" | 3" |
| Impeller Diameter | 6.38" | 8.75" | 9.75" | 12.38" | 14.75" | 13.25" |
| Drive | Diesel or electric | — | — | — | — | Diesel or electric |
| Max Head | — | — | 135 ft | — | 128 ft | — |
Priming notes
STP units are self-priming trash pumps: the casing holds a liquid charge that lets the pump re-prime on its own after the initial fill.
- Prime the casing once at start-up; the retained charge lets the pump re-prime automatically afterwards.
- Large solids-handling volute with a clean-out cover for field access to the impeller and wear plate.
- Suction lift to roughly 25 ft with an airtight suction hose and foot valve where required.
Applications
Typical duty
- Slurry and sludge transfer
- Industrial process water
- Quarry and mining sumps
- Agricultural waste
Configuration options
- Highway trailer, single-axle site trailer or bolt-down skid base
- Diesel engine or electric motor drive
- Critically silenced acoustic enclosure (~69 dBA at 30 ft)
- Extended-run fuel cells and containment bases
- Ductile iron wet end with open impeller for solids passage
Tell us your flow, total head and solids size and we will size the unit for you.
Performance
STP Performance Curves by Model
Head versus flow for each self-prime trash pump model, including suction-lift and engine-speed curves as published on the AMCO model data sheets. All figures are nominal and for guidance only.
Downloads
STP series technical datasheet
One PDF covering every model in the series: dimensions, performance figures, priming behaviour and configuration options.
AMCO STP Series Datasheet
Includes STP2, STP3, STP4, STP6, STP8, STP10 specifications and the combined performance curve.
PDF · 2 pages
Technical literature
STP manuals, parts lists & submittals
Installation and maintenance manuals, wear-part lists with service intervals, submittal packages and editable CSI specification language for this series.
IOM manual
Installation, operation and maintenance: safety, piping, priming, start-up, the maintenance schedule and a troubleshooting table.
Download PDFParts list & exploded view
Wear-part bill of materials with service intervals, the categories we stock, and the rotating-assembly item list where it applies.
Download PDFSubmittal package
Equipment schedule for every model, construction and materials, drive and packaging options, domestic-manufacture statement and warranty.
Download PDFCSI spec section
Editable three-part specification language (Section 33 14 19) with bracketed values for the engineer of record.
Download PDFCertified curves, dimensional drawings, CAD files and AIS/BABA certificates are issued per order — see all resources.
Related products
- APCD Auto-Prime Series specifications
Auto-prime pumps for dewatering and bypass. Move fluids, sludge and raw sewage with solids up to 3".
- APHH Auto-Prime High Head Series specifications
Vacuum auto-prime high head pumps in ductile iron. Heads to 315', a wide range of impeller and port sizes.
- UTP Utility Trash Series specifications
Utility trash pumps for solids-laden liquids and slurries, built compact for tight sites and rental fleets.
- Compare every AMCO pump series
Flow, head and solids ratings for the full APCD, STP, APHH and UTP range.
Related services and support
- Replacement parts for STP pumps
Impellers, wear plates, seal kits and complete pump ends, shipped from Houston.
- Sound attenuated enclosures
Critically silenced packages rated at roughly 69 dBA at 30 feet.
- Technical support and service
Sizing help, curves, commissioning guidance and field service for your unit.
- Find a distributor
Rental and sales partners stocking AMCO pumps across North America.
- Request an STP quote
Send us flow, head and site details and we will size and price the package.