The SCP SP series heavy-duty centrifugal pumps are custom-engineered high-pressure large-volume centrifugal pumps designed for the most severe oilfield blending, cementing, fracturing and drilling fluid transfer applications. The SP series covers six complete model ranges — SP 75, SP 100, SP 125, SP 150, SP 200 and SP 300 — sharing a unified heavy-duty power frame, standardized bearing cartridge and common mechanical seal envelope across the entire family. Each model features a rugged radial split volute casing with heavy wall sections, large-diameter overhung shaft supported by heavy-duty duplex bearings, and full set of replaceable wear components for extended service life in abrasive slurry and corrosive fluid environments. All wetted parts are available in ductile iron, 316 stainless steel, duplex or super duplex alloys for complete oilfield fluid service coverage from fresh water through H2S sour brine, CO2 injection and acid stimulation fluids.
Six core models in the SP series:
SP 75 & SP 100: Compact high-head models for cement mixing, sand slurry transfer and blender hydration water supply where space is limited but high discharge pressure is required.
SP 125 & SP 150: Mid-range high-flow models engineered for fracturing blender main discharge, high-rate cementing and large-volume water injection applications.
SP 200 & SP 300: Large flagship models purpose-built for the highest flow and pressure demands in massive fracturing spreads, deep well cementing and high-pressure water flood injection.
Six integrated models (SP 75 to SP 300) with unified power frame, bearing cartridge and seal envelope
A single power frame design with standardized bearing cartridge and mechanical seal chamber accepts all six impeller and casing sizes, enabling maximum parts interchangeability across the entire fleet.
Radial split volute casing with extra-heavy wall sections for extreme pressure and erosion resistance
Radial split casing design with thick wall sections provides superior pressure containment and erosion resistance compared to axial split or end-suction alternatives in high-pressure slurry service.
Large-diameter overhung shaft with short bearing span for minimum deflection under maximum load
Overhung shaft design with closely spaced heavy-duty duplex bearings limits shaft deflection to less than 0.0015" at full rated load, protecting seal integrity under the most demanding operating conditions.
Full set of replaceable casing wear rings, impeller wear rings and shaft sleeve for cost-effective refurbishment
Complete replaceable wear component package protects all capital parts (casing, shaft) from abrasive damage, allowing multiple refurbishment cycles without replacing the main pump casing or shaft.
Heavy-duty duplex angular contact bearing cartridge with oil mist or oil bath lubrication
Duplex bearing arrangement handles combined high radial and thrust loads with oil mist or oil bath lubrication options for continuous high-load 24-hour pumping operations.
Top-centerline discharge and centerline-mounted foot support for thermal expansion management
Centerline discharge and mounting arrangement ensures the pump maintains alignment with its driver under all thermal conditions, from cold start-up to full-load stabilized operation.
Oversized seal chamber with full API-682 mechanical seal compatibility
Large seal chamber accepts any API-682 seal configuration including single, double, tandem and cartridge seals with Plan 11, 21, 23, 52, 53 or 54 flush systems.
Multiple metallurgy options: ductile iron, 316 SS, duplex, super duplex for H2S and CO2 service
Full range of corrosion-resistant alloy options covers all oilfield fluid services including NACE MR-0175 compliant materials for sour gas well applications.
Fracturing blender main slurry discharge and recirculation at high flow rates
Cement mixing and displacement pumping for deep well and offshore cementing operations
Drilling mud mixing, transfer and charge pump for deep drilling rig circulation systems
High-pressure water injection for secondary recovery water flood projects
Acid stimulation fluid pumping for matrix acidizing and fracture acidizing treatments
Produced water transfer, disposal and re-injection pumping
High-volume crude oil transfer and pipeline booster pumping
Six-model unified platform with full parts interchangeability reduces fleet spare parts inventory by up to 60%
A single power frame, bearing cartridge and mechanical seal fits all six SP models from SP 75 to SP 300, dramatically reducing the range of spare parts required for multi-pump fracturing fleet operations.
Radial split casing design with heavy wall sections provides 3–4 times longer erosion life in abrasive slurry service
The combination of radial split geometry and thick casing walls provides measurably superior erosion resistance compared to end-suction or axial split pump designs in sand-laden fracturing and cement slurry applications.
Overhung shaft with minimum deflection eliminates mechanical seal failures caused by shaft movement
The carefully engineered shaft and bearing arrangement limits radial deflection to less than 0.0015" at full load — below the threshold that causes mechanical seal face separation, eliminating the most common cause of seal failure in heavy-duty centrifugal pumps.
Full wear component set enables pump refurbishment at 30–40% of new pump cost
When wear components reach end of life, replacement of casing wear rings, impeller wear rings, shaft sleeve and mechanical seal restores the pump to like-new performance at a fraction of the cost of a new pump.
Standardized API-682 seal chamber eliminates the need for custom seal adapters or modifications
The seal chamber is designed to accept any standard API-682 cartridge mechanical seal without adapter plates or housing modifications, enabling field seal upgrades without removing the pump from the skid.
Full metallurgy range from ductile iron to super duplex covers all oilfield fluid services from one pump platform
All six models are available in the full range of metallurgies from economical ductile iron through premium super duplex alloys, allowing fleet standardization on a single pump platform across all fluid service types.
Mass production with established global supply chain ensures competitive pricing and reliable delivery for large fleet orders
Large-batch production with audited foundry and machining supply partners guarantees consistent quality, short lead times and factory-direct pricing for both individual replacement pumps and full fracturing fleet packages.
Q: Can the SP 75, SP 100, SP 125, SP 150, SP 200 and SP 300 share the same baseplate?
A: All six models share identical baseplate mounting dimensions, centerline heights and nozzle centerline elevations — any SP series model can be directly swapped with any other on the same baseplate without piping modification.
Q: What is the maximum solid particle size the SP series can handle?
A: Standard enclosed impeller design handles suspended solids up to 1/8" (3 mm). For larger solids up to 1/2" (12 mm), an optional open or semi-open impeller configuration with replaceable wear plate is available.
Q: What material options are available for H2S sour service?
A: For H2S sour service, we recommend duplex or super duplex stainless steel wetted parts meeting NACE MR-0175 requirements, with double mechanical seal and API Plan 53 or 54 barrier fluid system.
Q: What is the maximum working temperature?
A: Standard construction handles up to 250°F (121°C). High-temperature options with water-cooled bearing housing, high-temperature elastomers and specialized mechanical seal materials are available for up to 400°F (204°C) service.
Q: Can the SP series pumps be supplied with VFD control packages?
A: Yes, we offer complete pump units with explosion-proof VFD motor, baseplate, coupling guard and integrated VFD controller, fully assembled and tested before shipment.
Q: What spare parts kit do you recommend for a fleet of SP series pumps?
A: We recommend one mechanical seal kit, one set of casing and impeller wear rings, and one shaft sleeve per pump, plus 2–3 additional seal kits and one spare bearing cartridge for a fleet of 10–20 pumps.
We manufacture and export the full SCP SP series heavy-duty centrifugal pumps covering six model ranges from SP 75 through SP 300. Custom metallurgy, mechanical seal arrangements, motor voltages, VFD integration and special coatings are available. Send your required flow rate, discharge head, fluid composition, solid content and operating temperature to our engineering team for a detailed technical datasheet and factory direct price quotation.
