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Solution Summary
Deep Well Submersible Pump for 50m–500m+ Depth — BBP Industrial Series
Stage-Centrifugal deep well submersible for mining de-watering, agricultural irrigation, municipal water supplies. ISO 9001 manufacture with complete vertical manufacture: casting, machining, assembly and hydraulic testing within the facility. OEM welcome, 15-30 day lead timeon all in-stock line series.
Depth range
50 – 500m+
Flow range
8 – 160 m³/h
Pump diameters
4″ / 6″ / 8″ / 10″
Materials
AISI 304 / 316 / duplex
Motor voltage
220V / 380V / 440V / 6kV HV
Certifications
ISO 9001 · CE · IEC 60034
Lead time
15–30 days
(stocked series)
Why Consumer-Grade Well Pumps Fail Beyond 100m — and How BBP Industrial Pumps Solve It
A single stage 1 hp domestic submersible well pump can achieve approximately 50-65m of total dynamic head (TDH), assuming typical well water conditions. Pressurize the same pump to higher levels — or operate in troublesome high-sand or high-saline groundwater conditions — and impeller erosion, motor malfunction and seal failure develop in months, not years. Very deep and high-flow application boreholes (120m for agriculture, 280m for dewatering, 500m for municipal) is going to require a design approach fundamentally different from the homeowner’s waterworks pump.
What breaks on residential-grade pumps in industrial duty
- Single-stage hydraulics cap head at 50–65m per stage
- Oil-filled motors overheat when submerged past 100m
- Comes with: Corroded iron shell, hard waters with abrasives for 18-24 months
- Failures with power co-ops during combined service when the sand load is greater than 30 g/m
- Failing consumer submersible capacitors / tripping overload contacts during 15% voltage fluctuations
How the BBP ASJ-series architecture handles it
- Multistage centrifugal hydraulics: 3-24 stages delivers on/off head over 500m without oversize motor
- Water-filled rewindable stators rated for continuous submersion according to IEC 60034 manual
- AISI 304 corrosion grade, AISI 316 for saline or chemical use, duplex for abrasive water
- Double mechanical seal, and a specially tolled impeller backplate designed to accept approximately 100 g/m of cutwaters
- Isolated control box, all the suugestions possible for unstable power supplies in remote / industrial applications
BBP has manufactured the ASJ borehole submersible series since 2005, with end-to-end vertical integration: casting, heat treatment, CNC machining, rotor balancing, assembly, coating, and full-load hydraulic testing — every stage inspected under a single ISO 9001 quality system. The result: a borehole pump built to survive where residential-grade pumps fail, priced for distributors and engineers who understand the gap between “good enough for a farmhouse” and “good enough for a 24/7 mine shaft.”
Not sure which depth range fits your project?
WhatsApp our application engineer →BBP Deep Well Submersible Pump Line — Models by Depth, Flow & Diameter
Our ASJ series scales across four diameters with parameter ranges verified in 2024–2025 shipped-project records. Use the decision matrix below to pre-qualify a model against your well diameter, target TDH, and service environment.
100ASJ · 4 inch
Light Industrial Borehole Pump
- Head range15 – 185 m
- Flow range4 – 10 m³/h
- Motor power0.75 – 7.5 kW
Best fit: Household clusters, 1hp-to-10hp small irrigation, livestock, shallow-to-mid wells
150ASJ · 6 inch
Commercial & Agricultural Series
- Head range50 – 330 m
- Flow range12 – 50 m³/h
- Motor power4 – 37 kW
Best fit: 500-hectare farm irrigation, municipal boosting, mid-depth mine dewatering
200ASJ · 8 inch
Heavy Industrial Series
- Head range80 – 420 m
- Flow range50 – 100 m³/h
- Motor power22 – 90 kW
Best fit: Mine dewatering 250–400m, municipal water supply, large-scale irrigation manifolds
250ASJ / 300ASJ · 10″+
Deep-Field Industrial Series
- Head range150 – 500m+
- Flow range100 – 160 m³/h
- Motor power55 – 200 kW (6kV HV available)
Best fit: Deep mining, municipal aquifer extraction, oil/gas produced-water lift
Decision Matrix — Select by Well Depth & Service Conditions
| Static water depth | Recommended diameter | Flow band | Preferred material | BBP series |
|---|---|---|---|---|
| < 100 m | 4″ (100ASJ) | 4–10 m³/h | AISI 304 | 100ASJ / 3 or /5 short stacks |
| 100 – 250 m | 6″ (150ASJ) | 12–50 m³/h | AISI 304 | 150ASJ / 5 or /10 mid stacks |
| 250 – 500 m | 8″ (200ASJ) | 50–100 m³/h | AISI 316 | 200ASJ long stacks + HV motor |
| 500 m+ | 10″+ (250/300ASJ) | 100–160 m³/h | AISI 316 / duplex | Custom stacking + 6kV HV + double-seal |
Engineering details that differentiate the ASJ series
Every ASJ pump is built on a water-filled rewindable stator — the motor cavity is flooded with dielectric water that circulates to dissipate heat under continuous submersion. That is why the series survives 24/7 mining and municipal duty where oil-filled motors fail from thermal stress. The hydraulic end uses a mixed-flow impeller geometry in the larger sizes to handle sand loads up to ~100 g/m³ at rated flow, a tolerance range roughly 2–3× what entry-tier radial impellers can survive without accelerated wear.
An isolated control box is often overlooked but is where many pumps fail in service. BBP’s control architecture specifies a separate surge-protected enclosure rated for ±10% voltage tolerance — addressing the capacitor and overload-contact failure pattern commonly reported on certain residential-oriented competitor lines. For solar and renewable-energy deployments, a DC-compatible variant supports 24V/48V battery or PV-direct input, typical for remote agricultural and off-grid installations.
Need the full per-model spec sheet with Q/H curves?
Download the 12-page ASJ catalogue →
BBP vs Grundfos vs Franklin — Data-Driven Comparison for International Buyers
All Specs
Engineer
Project Manager
Procurement
International engineering buyers rightly default to established European brands when brand trust outweighs price sensitivity. We respect that baseline. Our side-by-side below is honest — including segments where competitors lead and segments where BBP differentiates. Specs for Grundfos SP and Franklin FPS are compiled from their publicly available product catalogues; BBP values are from our 2024–2025 shipped-project records.
| Specification | BBP ASJ | Grundfos SP | Franklin FPS |
|---|---|---|---|
| Max TDH | 500m+ (custom stacking) | 683 m (SP ceiling) | ~320 m |
| Max flow | 160 m³/h | 347 m³/h | 120 m³/h |
| Housing materials | AISI 304 / 316 / duplex | AISI 304 / 316 / 904L | Cast iron / 304 / 316 |
| Sand tolerance | up to ~100 g/m³ at rated flow | up to ~50 g/m³ (standard SP) | < 30 g/m³ |
| Motor spec compliance | IEC 60034-S, IP 68 | IEC 60034-S, IP 68 | IEC 60034-S, IP 68 |
| OEM / mold customisation | Yes — in-house foundry + mould design | Limited | Limited |
| 4″ stocked lead time | 15–30 days | 60–90 days (EU via dealer) | 45–75 days |
| Spare parts stocking | Major SKUs held in stock | Order-triggered | Order-triggered |
| 24/7 engineering support | Direct manufacturer line | Via authorised dealer | Via authorised dealer |
| FOB 4″ entry price band | Low | $3–4× BBP entry | 2.5–3× BBP entry |
Where Grundfos wins: absolute ceiling on TDH, a refined 904L option for the harshest brines, and brand recognition that shortens procurement approval cycles.
Where BBP wins: total cost of ownership and supply responsiveness — particularly for projects where initial capital, lead time, and on-the-ground spare-parts availability drive operational uptime more than a marginal head ceiling.
TCO · Silver Tier
Why the TCO math favours a right-sized ASJ over an oversized EU pump
Pump-industry research places lifetime energy cost at 40–90% of total cost of ownership — the single largest line item by a wide margin. At a 45 kW multistage unit running 6,000 hours per year at $0.12/kWh, that is roughly $32,400 per year in electricity alone, before factoring in maintenance, spare parts, or unplanned downtime.
40–90%
Lifetime energy as share of pump TCO (industry data)
~30%
Electricity reducible via right-sized, efficiency-optimised design
5–10 yr
Typical payback window for right-sizing + responsive spare-parts supply (scenario-dependent)
Silver-tier framework: BBP does not claim a fixed percentage energy advantage without specific project data. Figures above reflect industry-wide TCO research applicable to any manufacturer. Request a scenario-specific TCO analysis with your flow duty and electricity tariff for a quantified payback projection across real water wells and operating conditions.
Customer Outcomes — Mine Dewatering · Agricultural Irrigation · Municipal Supply
Industry guidance from the International Mine Water Association confirms that installing deep wells with properly-sized submersible pumps remains the standard pre-drainage method for effective underground water control. Three short studies below are drawn from BBP deployments across three continents during 2023–2025.
Copper Mine Dewatering · Central Africa
A 280 m dewatering shaft required continuous extraction of sand-laden groundwater at 80 m³/h. Operators at the site had already lost two competitor pumps to seal failure within a single year.
BBP Solution
200ASJ/50-280/42 with duplex casing, double mechanical seal, 6kV HV motor.
- Continuous operation: 18 months
- Downtime events: 0
- Sand-load tolerance: verified at ~85 g/m³
Irrigation · Central Asia Cotton Farm
A 500 hectare cotton operation required mid-depth irrigation with grid-unreliable power. Diesel backup was prohibitively expensive.
BBP Solution
150ASJ/10-120/22 coupled to a 20 kw PV array with DC-input motor option.
- Hectares served: 500
- Water delivered: seasonal 2024 harvest cycle
- Diesel backup hours: reduced to off-peak only
Municipal Supply · Southeast Asia Township
A regional town of ~12,000 residents required reliable deep-aquifer supply from a 180 m bore with elevated chloride, serving combined domestic and small-industry water demand.
BBP Solution
150ASJ/5-180/36 in AISI 316, with ISO 9001 batch traceability documentation for the municipal procurement audit.
- Population served: ~12,000
- Depth: 180 m
- Audit trail: full material traceability per ISO 9001
Certifications, Materials & Engineering Transparency
Auditable documentation, not marketing claims. Our in-house quality system covers everything from raw steel inspection to final hydraulic load test in a single chain of custody. Every pump leaves with a test certificate re-checked back to material batch record.
ISO
ISO 9001 Quality Management
CE
CE Marking (EU market conformity)
IEC
IEC 60034 Motor Standard
IP
IP 68 Continuous Submersion
SS
AISI 304 / 316 Traceable Materials
HT
Full-load hydraulic test per unit
Why vertical integration changes the quality equation
Most pump brands will work with castings sourced from a third-party foundry, subsequent machining and assembly done elsewhere downstream. That transfer point is where traceability break down occurs-a common pain for international buyers when auditing Chinese supply chains. BBP’s own foundry, heat-treatment line, CNC machining cell, rotor-balancing bench and coating booth ensure every pump body can be traced from its bulk melt batch of AISI 304 or 316 steel through the serialized units it produced. For an ISO 9001 auditor or municipal evaluation, that direct single-chain-of-custody marks the difference from “trust us” to “here is the material certificate.”
OEM clients get the most value from this integrity: we can develop the impeller hydraulic optimization, motor voltage matching, and pump mould engineering end-to-end in-line-on-one-team agnostic of offsite foundry capacity or serial partner timelines that brands dependent on external sources can’t match.
Procurement Guide — Pricing Tiers, Lead Time & After-Sales Commitment
Pricing transparency is hard to find in this category - most brands route every inquiry into a quote queue with no set publication of benchmark buying factors. We can't yet upload a global fixed pricing list (how motor voltage, cable length, control box specification and volume affect pricing) but the factor matrix below explains how varying those inputs will inflate or deflate a quote so pre-wholesale qualification is possible.
What drives the quote
Pump OD and stage count
a 6" 10 stage will more than double the casting price of a 4" 5-stage ; a larger number of stages directly correlates with target TDH.
Body material
AISI 304 is industry standard; AISI 316 adds a premium; Duplex stainless or bronze for special service conditions is a custom quote.
Motor voltage and thermal protection
220V single phase or 230V/440 V three phase standard; 6kV high voltage for deep shaft/in long cable runs will add a motor premium.
Cable run length & control box
specify cable run length at quote time; control-box VFD compatibility, surge protection and installation equipment costs are incrementally additive.
Any certification pack needed
CE / ISO /pecific project certificates included for standard tenders; exotic certifications (ATEX, potable classification) quoted separately by project.
Partnership volume & pricing
sample MOQ=1; commercial pricing=10+ units; OEM partner pricing (branded hardware + longer warranty period)=100+ units.
Lead time, warranty, and support commitments
Delivery lead time
2 weeks for 100ASJ/ 150ASJ stocked options; 4-8 weeks for custom stacking or 6kV high voltage motor orders.
Warranty period
2 years (motor, hydraulic end, wiring); optional 3-year OEM partnership extension.
Payment method
T/T 30/70 pre-shipment or sight L/C on large scale orders.
Spare part stocks
impellers, seals, cable glands, control boxes- stockpiled at BBP and available for same week dispatch.
Technical support
pre-sales engineering consultation (TDH calculation, pumps selection) free, after-sales 24/7 technical hotline & remote diagnostics, on-site installation training available for end-user OEM & large project users.
Wholesale and dealer partnership
Distributors and engineering contractors seeking a second pump-brand between existing European or American lines may apply for the BBP Wholesale Partnership Program. Volume tier pricing, co-branded catalogue material, & engineering support for your own Tendering work. This fills in a gap flagged by several regional pump dealers — a credible alternative to the one-brand shop they have today.
Request 48h Quote →Deep Well Pump Engineering & Selection Tools
Frequently Asked Questions
Based on pre-sales conversations through 2024-2025 with engineering buyers, procurement teams, & dealers.
The flagship series can be scaled up or down, from shallow 4" household-tier bores (~15-40 m on the low end), through mid-depth 6" agricultural & municipal and municipal bores (~100-330 m range), up to custom-stacked 8"/10" industrial configurations rated deep (>500 m) for deep mining & municipal aquifer extraction. The maximum depth for any project depends on motor kW available, casing wall thickness, and well static & dynamic water levels. We will TDH-engineer the right model for you at quote time.
Jet pumps are surface mounted, rely on surface suction, and incorporate an ejector assembly in the well. They are impractical beyond 25 m shallow or around 90 m for convertible deep-well jet systems. Submersible-style pumps like the ASJ series are located below the water table and use steelwelled multistage centrifugal impeders to push water upward. There is no lift limit below water, head is staged summative, & efficiency is generally higher for deep lift. For anything past ~100 m, submersible is the only practical architecture.
Voltages vary for the electric motor. Typical levels are 220V single phase (smaller 100ASJ sizes), 380V or 440 V three phase for commercial & industrial sizes, & 6kV high voltage for deep-shaft installations where cable voltage-drop (over long runs) makes low-voltage inaccessible. Frequency support for 50Hz & 60Hz, plus DC-input for solar turfs. Specify grid voltage and frequency at RFQ.
MOQ is 1 for evaluation samples, 10 for commercial supply at standard commercial rates, & 100+ for OEM / Custom Branding / Extended Warranty partner ships. Stock 100ASJ & 150ASJ models in stock ship within 15-30 days of receipt of PO; custom-stacked or 6kV HV builds are 30-60 days from order. T/T 30% deposit allocated slot.
Properly sized industrial multistage submersibles are expected to deliver 10-15 years of unattended service, with some solar-duty models exceeding 16 years before needing major rebuilds. The two failure modes that abbreviate life are oversize (running away from best efficiency point causes sand & cavitation damage) & sand-blast damage to the impellor beyond the rated tolerance. Both are avoidable with proper pump sizing prep at time of selection, which is why our TDH calculation is free.
Yes — and it is free of charge, before quotation. Send us your static water level, drawdown at pumping, target flow rate, discharge elevation, horizontal run length and pipe diameter, and required pressure at delivery. We will return a sized recommendation with Q/H curve, motor kW, cable sizing, and the nearest stocked ASJ model. On larger municipal or mining projects, our engineering team can coordinate on-site well testing.
On most four-wire 380V/440V installations, yes — our control box wiring diagram matches the IEC standard, and motor terminals are compatible with most European and American submersible wiring conventions. On three-wire 220V residential installations upgrading to BBP, we generally recommend replacing the surface control box together with the pump, since control-box failures (capacitor and overload-contact) are the most common root cause of service calls on some residential-tier competitor installations. Send us a photo of your existing wiring at RFQ and we will confirm compatibility before shipment.
AISI 304 handles typical fresh groundwater reliably for decades of service. Upgrade to AISI 316 when the application involves chloride exposure past roughly 250 ppm (coastal aquifers, brackish water, some mining drainage), mild acids, or mine-shaft water with elevated sulphate. In more severe-service conditions — acid mine drainage, high-chloride brines, offshore applications — duplex or super-duplex stainless is warranted. Our sales engineers will make the material recommendation based on your water analysis; send a water quality report with your RFQ.
Request a Quote — Sized for Your Project in 48 Hours
Tell us your water quality parameters (depth, flow, voltage, application) and our engineering team will send you a correctly sized ASJ model, load curve, FOB date, and FOB quote in 2 business days or less!
References & Data Sources
- IEC 60034-1:2022 - Rotating electrical machines, General requirements. International Electrotechnical Commission.
- IEC 60034-30-1:2014 - Rotating electrical machines, Part 30-1: Efficiency classes of line-operated AC motors (IE-code).
- ISO 9001:2015 — Quality management systems, Requirements.
- AISI / SAE 304 and 316 Austenitic Stainless Steel Standards.
- Venburg, R. (1979). Dewatering of Mines - A Practical Analysis. International Mine Water Association, IMDS1979.
- Quadna - Understanding Total Cost of Ownership in Pump Selection. TCO piece about energy aspects.
- Siglers - Three Steps for Reducing Total Cost of Ownership in Pumping Systems.
- NEMA Motor & Generator Section - Considerations for Total Cost of Ownership (TCO) of Your Next Pumping System.
About This Technical Landing Page
This page was assembled by the BBP engineering team from our external project engineering archive of 2024-2025 shipped-projects in our ASJ 100/150/200/250 well-series, tied together with published IEC motor standards and internationally recognized pipe standards and pump-industry TCO data. Spec criteria (depth, flow, power, sand tolerance) are based on hard experience, not marketing golden promises. Comparison data on Grundfos and Franklin was assembled from their catalogues, we cannot guarantee every number is accurate and we are honest about when a traditional European brand is warranted as a worthy segment leader. Send project-specific numbers, energy model, precise lift calculation, and materials certification here and we will respond with a custom report within 2 business days!
