تواصل مع BBP
شهادة الأيزو 9001
علامة CE
مضخة التدفق المحوري
Axial Flow Pump — Ultra High Volume, Low Head Transfer Solutions
BBP AHW axial flow propeller pump — industrial submersible axial flow pump for high-volume water transfer. Move up to 68,000 m³/h at 2–15 m head with AHW series.
- Configurations: Submersible · Vertical · Horizontal
- Typical Efficiency: 78–85%
- Lead Time: 45–90 Days (MTC Provided)
Max Capacity
68,000 m³/h
نطاق الرأس
2 – 15 Meters
كفاءة
Up to 85%
المعايير
ISO 9001 · CE
AHW Axial Flow Pump Series — Configurations & Specifications
Three installation geometries share one AHW hydraulic technology platform. Choose by installation environment – don’t be swayed by sales pressure. Motor power ranges from 50 to 100 horsepower (36–75 kW) on the submersible line, scaled up or down for other application environments. A common feature across all three is the ability to adjust axial impeller pitch to match seasonal flow demand across variable duty points.
Standard Catalog
AHW-S Submersible Axial Flow Pump
Submersible motor directly coupled to the axial impeller. Ideal for sumps, intake pits, and flood-prone stations where dry-pit access is risky. No above-deck motor housing required.
- Capacity: 5,000–15,000 m³/h
- رئيس: 2–8 m
- Motor: 50–100 HP (36–75 kW), 8P/10P/12P
- Impeller: SCS13 stainless, adjustable-pitch 3–4 blade, optional ALBC3 bronze for saltwater
- ختم: Double SiC/SiC mechanical seal
- Casing: FC200 cast iron, SUS420J2 shaft
- Protection: IP68, Class H insulation, MTS thermal + MS seal leakage sensors
- Optional: Sacrificial anode for brackish / saltwater service
Standard Catalog
AHW-V Vertical Axial Flow Pump (Dry-Pit)
Axial flow vertical circulation with a dry- pit motor up on the back deck. The impeller is just below the minimum wet well level. This is a very common installation where it is normal practice to inspect the motor(s) without having to dewater the sump.
- Capacity: 15,000–50,000 m³/h
- رئيس: 3–12 m
- Shaft: Line shaft with intermediate guide bearings, oil-lubricated
- Bowl: FC200 cast iron, SCS13 stainless impeller
- ختم: Single SiC/carbon mechanical seal (dry-pit motor protected)
- يقود: Vertical solid-shaft induction motor, IE3 efficiency class
- تطبيق: Municipal flood control stations, large irrigation intakes
Inquiry-Configurable
AHW-H Horizontal Axial Flow (Custom)
Horizontal split-case axial flow with custom engineering to duty. We will provide a quote based on your duty envelope, your NPSH- available, fluid properties, and your Q-H curve and not from one of our catalogs. Typical duties: condenser cooling water, evaporator circulation, marine ballast pumping.
- Typical capacity: 30,000–68,000 m³/h
- Typical head: 5–15 m
- Design basis: Split-case axial geometry, horizontal drive shaft
- Custom scope: Impeller pitch, casing material (corrosion upgrade available), flange type.
- Lead time: 90–120 days including engineering review
- Contact: Contact engineering to confirm feasibility for your specific duty.
Decision Matrix — Which AHW Configuration Fits Your Project
Selection is driven by installation geometry, access requirements, and duty envelope – not by marketing pitch. The table below uses specific parameter values so that your design engineer and procurement manager can both view the same row and reach the same decision.
| التكوين | Capacity Range | نطاق الرأس | Best-Fit Installation | Why This One |
|---|---|---|---|---|
| AHW-S Submersible | 5,000–15,000 m³/h | 2–8 m | Flood-prone sumps, storm water pits, fish farm intakes | No dry pit required; motor tolerates full submergence |
| AHW-V Vertical Dry-Pit | 15,000–50,000 m³/h | 3–12 m | Municipal pump stations, large irrigation channels | Motor accessible without dewatering; longer MTBF |
| AHW-H Horizontal (Custom) | 30,000–68,000 m³/h | 5–15 m | Cooling water intakes, industrial circulation loops | Engineered to duty — contact engineering |
Materials of Construction
Material specifications are listed below. All grades of stainless steel and bronze carry EN 10204 3.1 mill test reports; option upgrading to 3.2 with witnessed testing available on request.
| مكون | AHW-S Submersible | AHW-V Vertical Dry-Pit |
|---|---|---|
| Casing / Pump Bowl | FC200 cast iron | FC200 cast iron |
| رمح | SUS420J2 stainless | SUS420J2 stainless (line shaft) |
| Impeller (standard) | SCS13 stainless | SCS13 stainless |
| Impeller (saltwater option) | ALBC3 aluminium bronze | ALBC3 aluminium bronze |
| الختم الميكانيكي | Double SiC/SiC | Single SiC/carbon |
| Wearing Ring | ALBC3 (75–100 HP units) | Cast iron / ALBC3 optional |
| Base Stand / Column | SS400 structural steel | SS400 structural steel |
| Cable (submersible) | VCT / PNCT / H07RN-F | n/a (dry-pit) |
Ready to confirm which configuration fits your station? Send us your flow rate, head, and installation geometry — our engineering team will match a model and return a preliminary spec within 24 hours.
High-Volume, Low-Head Pumping Challenges — And How Axial Flow Solves Them
Three failure modes result in the worst pump buying decisions in flood control, irrigation and cooling water service. First, specified for end-suction centrifugal pumps for duty points greater than 5,000 m³/h where they eat huge amounts of seasonal runtime by falling off their best efficiency point by 15-25%, squirrel cage motor current explodes and efficiency is lost. Second, in deep sumps, NPSH-available is under specified and impellers cavitate and short our wear lives from years to months. Third, while fixed submersible pump stations cost more to build than dry-pit options, the drainage and flood hazard require the submersible geometry. While while fixing a dry-pit station a couple years later only makes it more expensive to operate. Both mistakes will eat up more over 5 years than the pump itself.
An axial flow pump — also called a propeller pump or elbow pump — uses a rotating axial impeller (a vaned propeller) to push liquid parallel to the shaft axis. Its hydraulic signature is high flow rate at low pressure rise (that is, low head), with efficiency typically 78–85%, making it the right geometry for any duty above 5,000 m³/h at less than 15 m head. A centrifugal pump, by contrast, pushes fluid radially and shines at medium flow with high head.
Where AHW Axial Flow Pumps Deliver — Applications & Customer Outcomes
It is worthwhile noting at this point that inverted (axial flow) wheel geometry is often the “first choice” design option for five industrial applications where volume flowrate trumps hydrostatic head in the selection criteria. Five scenario cards below show typical industrial deployments where AHW scope is tailored to scale and material configuration choices that matter most in each situation, to a high-volume conventional design.
Municipal Flood Control & Storm Water Pump Stations
Scope & Specifications
Typical scope is 4–12 AHW-V dry-pit pumps per station, each handling 15,000–30,000 m³/h at 3–8 m head. Reference context: Grundfos’ flood control engineering brochure documents an 8-unit KPL axial flow pump station handling flows up to 6 m³/s (21,600 m³/h) at 6 m head per pump — a useful benchmark for station-scale specification. AHW-V with SCS13 stainless impeller is the standard material choice for this service.
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Agricultural Irrigation (Rice, Sugarcane, Cotton)
Scope & Specifications
Channel irrigation and pump-back systems on rice paddies, sugarcane, and cotton farms typically size pumps in the 5,000–15,000 m³/h envelope at 2–6 m head. AHW-S submersible is the workhorse here, with electric drive standard and diesel-drive skid-mounted variants for remote fields without grid power. ALBC3 bronze impeller is the upgrade for silt-heavy canal water.
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Power Plant Cooling Water Circulation
Scope & Specifications
Once through condenser cooling and closed loop tower circulation on thermal and combined cycle plants will run flow in excess of 30000 m /h at 5-12 m head. The AHW-H horizontal configuration is specified for this service, alongside corrosion-upgraded casing on sulfate rich river water or brackish sources. Sacrificial anode is also specified on seawater intakes.
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Aquaculture Water Exchange
Scope & Specifications
Serious prawn and fish farming recirculation demands 10000-25000 m /h at 3-7 m head, often 24 hour duty in a seawater environment. For this application the saltwater config is AHW-S with sacrificial anode + ALBC3 bronze impeller. Regardless of feedwater source the double SiC/SiC mechanical seal is the sealing choice that survives continuous submergence in brackish service.
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Industrial Process Circulation
Scope & Specifications
High volume, low head service for chemical evaporator circulation, pulp & paper black liquor transfer, and beet / cane sugar evaporator circulation is axial flow geometry in each case. From the chemical point-of-view the 304 L material corrosion-resistant package appears on AHW-H. Mullite or Silcap is specified for drive sleeve abrasion resistance if needed on the chemical option. Same platform is used for marine dock ballast transfer.
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ISO
ايزو 9001:2015
إدارة الجودة
م
علامة CE
EU Market Eligibility
إم تي سي
EN 10204
3.1 Standard · 3.2 Witnessed
CCS
Marine Cert
CCS / ABS — Optional for Marine Service
CCIC
Pre-Shipment
SGS / CCIC Inspection on Request
Vertical Integration — Seven Processes Under One Roof
All critical manufacturing steps are done in-house. That is the distinction between a pump we manufactured and a pump we assembled. Material test certificates correspond with the lot number on your shipment because we cast the metal ourselves, not a third-party foundry.
01صب
02المعالجة الحرارية
03التصنيع
04Balancing
05الجمعية
06طلاء
07Hydraulic Testing
For each buyer: engineers are given traceability from raw material specifications to final performance curve; procurement managers are given single-supplier accountability without 2nd and 3rd tier sub-suppliers to track down when a defect occurs; operations managers are given manufacturing cost structure independent of third-party casting margins – passed on as competitive pricing rather than being hidden in the markup. Hydraulic testing is conducted using the ISO 9906 acceptance testing methodology; Grade 2B tolerances are normal, Grade 1B tolerances available for critical service upon request.
Procurement Guide — Pricing Factors, Lead Time & Global Support
Buyers selecting axial flow pumps against a BBP benchmark often expect four commercial realities to be dealt with; lead time, minimum order quantity, final payment terms, and export documentation. Below are the answers:
Lead Time by Configuration
AHW-S Standard Submersible
45-60 days from purchase order to shipment ready (standard motor, standard impeller material)
AHW-V Vertical Dry-Pit
60-90 days (line shaft assembly + intermediate bearings extend Machining time)
AHW-H Horizontal Custom
90-120 days (including and in addition to engineering review, impeller blade angle validation, hydraulic testing)
Order Terms
- MOQ: 1 unit for all three configurations – no minimum station order
- Payment: 30% T/T deposit + 70% balance payable before shipment for the standard structure; Letters of credit at sight, confirmed through prime bank, are accepted where needed
- Trade terms: EXW, FOB, CIF, and DDP are available; CIF or DDP prices are quoted separated depending on end destination
- OEM / private-label: available in orders of 3+ units for proprietary hydraulics; 1- unit minimum order applies for materials or coatings upgrades on standard hydraulics
Export Documentation — Standard Package
All shipments will contain a standard pack of documentation; additional documents (Certificate of Analysis, particular MTC grade, type test reports) can be supplied on request and do not affect base lead time.
- CE Declaration of Conformity
- ISO 9001 certificate (copy)
- Material Test Certificates per EN 10204 3.1 (upgradeable to 3.2 witnessed)
- Certificate of Origin (CO) — chamber-stamped
- Commercial Invoice + Packing List + Bill of Lading
- SGS / CCIC pre-shipment inspection reports on request
قطع الغيار وما بعد البيع
Impellers, mechanical seals, bearings, shaft sleeves and wearing rings are held “off-the-shelf” for 24hr delivery for AHW-S and AHW-V OEM configurations. AHW-H engineered consumables are stockpiled after each project completion against future needs. 12 month warranty extends to motor, seals, bearings and impeller only (no other wear parts), replacing at cost there after. Remote tech support, operated on a 24/7 enquiry helpdesk, works alongside optional on-site commissioning and operator training, proposed and calculated on agreement between destination and manufacturer.
Price Signal — What Drives Your Quotation
Since five parameters influence unit price far more than headline output capacity does, we do not publish list prices for axial flow pumps. Those five parameters are impeller material (SCS13 base, ALBC3 bronze boosts cost, duplex or Hastelloy boosts considerably more), motor power rating, motor pole count, grade of the casing corrosion allowance, flange type (ASME B16.5, EN 1092-1, or other) and discharge dimensions, plus any special acceptance requirements. Send us your duty point and application conditions (such as suction lift or acceptable NPSH), and we will send you a meaningful quotation within 2 working days.
الأسئلة المتداولة
ما الفرق بين مضخة التدفق المحوري ومضخة الطرد المركزي؟
تنقل مضخة التدفق المحوري السائل بالتوازي مع عمود المضخة، باستخدام آلية المروحة الدوارة (المروحة المحورية). وتتراوح مهمتها الأكثر ملاءمة من 5000 إلى 68000 متر مكعب في الساعة عند 2 متر و15 متر من الرأس. تستخدم مضخة الطرد المركزي دافعة شعاعية تقوم برمي السائل إلى الخارج بقوة الطرد المركزي، مما يجعلها أكثر ملاءمة لـ 10003000 متر مكعب في الساعة عند 5000 متر رأس. بعبارات بسيطة من القاعدة: التدفق المحوري عند الحاجة إلى حجم كبير عند رفع منخفض؛ أجهزة الطرد المركزي عند الحاجة إلى تدفق أقل نسبيًا عند رأس أعلى. يمكن أن يؤدي الانتقاء بين الاثنين إلى تعطيل نقطة التوازن بأكملها، مما يدفع عمليتك لاستهلاك المزيد من الطاقة وتسريع التآكل المرئي.
هل مضخات التدفق المحوري ذاتية التحضير؟
لا. مضخات التدفق المحوري ليست مصممة لتكون ذاتية التحضير. تحتاج المكره إلى أن تكون دورته، عند الزحف، مغمورة بالكامل تحت مستوى ماء الشفط خلال فترة التشغيل بأكملها. إن AHW-S هو بطبيعته إعداد ذاتي لأنه يتم وضعه في/من خلال الماء. يحتوي تكوين الحفرة الجافة AHW-V على جرس شفط يجب أن يكون أقل من الحد الأدنى لمستوى مياه الآبار الرطبة. هذا المستوى الأدنى هو معلمة العمل للمحطة، وليس للمضخة وحدها. إذا/عندما يكون التحضير الذاتي عند المضخة مرغوبًا، فمن المستحسن تحديد مضخة طرد مركزي لأن المكره لن يتمكن أبدًا من توليد مصعد الشفط على غلاف فارغ.
ما هي السوائل التي يمكن لمضخات التدفق المحوري AHW التعامل معها؟
Clean or good water with only mild solids loading (storm water, irrigation, condenser cooling water, low solids sewage with upstream bar screen, seawater with sacrificial anode protection, brackish water, process water with mild corrosives with corrosion-upgraded materials specified). When the abrasives go high ( solids loading greater than 5% vol, abrasive solids slurry service), axial flow is the wrong tool – see our slurry pump line. Acid or alkali chemical service requires Hastelloy or duplex stainless, quoted as-needed.
كيف يمكنني الاختيار بين تكوينات التدفق المحوري العمودي والحفرة الجافة والغاطسة؟
Mechanically, there are three considerations. Where are you installing it? When the installation will take place in a station with no dry-pit (sumps or open pits), choose AHW-S submersible. When in the station routine motor examination and replacement without defouling or dewatering the sump is a must-have, choose AHW-V dry-pit vertical. Cost: AHW-S generally is 15-20% lower- has no elevated platform or drive shaft; it is easier to install and maintain, so the original CapEx is lower. Long-term reliability: AHW-V bearings are always running in a dry environment; they reach 60,000 hours MTBF, vsc about 40,000 hours for AHW-S immersed motor. If the station demands 24/7 operation, and long down-times are costly, the AHW-V premium comes back in the station’s lifecycle.
ما هو الاسم الآخر لمضخة التدفق المحوري؟
Propeller pump is the most common synonym — the axial impeller literally is a propeller. Elbow pump is used when the discharge piping makes a 90-degree turn out of the pump, which is common on vertical dry-pit installations. Column pump and lineshaft pump are often used for long-shaft vertical configurations such as AHW-V. Industry nomenclature varies by region; engineering documentation typically uses “axial flow pump” as the canonical term per ISO 9906 and Hydraulic Institute rotodynamic pump classification.
ما هي عيوب مضخات التدفق المحوري؟
Four constraints define where axial flow is not the right answer. First, head range is limited — single-stage axial flow tops out at roughly 15 m, so multi-stage centrifugal is the answer for higher head. Second, NPSH required is higher (4–8 m typical) than end-suction centrifugal, which matters on deep-suction installations. Third, the power curve is steep at shut-off — an axial flow pump draws high motor current when discharge is throttled, so the system must be designed to avoid prolonged closed-valve operation. Fourth, small-capacity axial flow (below 5,000 m³/h) is usually not economic versus a same-duty centrifugal pump. Inside the 5,000+ m³/h and less-than-15-m-head envelope, none of these constraints apply.
How long is the service life of an AHW axial flow pump impeller?
Impeller life span is directly related to material with the abrasiveness of the fluid loaded, and the grade of the material of construction. For good water (stormwater, condenser water, irrigation water from clear canals, no- sediment service), an impulse a stainless steel impeller SCS13 commonly lasts 5-8 years prior to overhaul or replacement. For sediment-laden water (typical rivers feeding industrial irrigation), 3-5 years. For mildly corrosive saltwater or brackish water with sacrificial anodes and ALBC3 bronze impeller, 4-6 years. These time spans function when operation occurs at the peak efficiency point; off-BEP performance reduces life span regardless of material. Our double SiC/SiC mechanical seal will outlive the first impeller overhaul cycle.
Does BBP provide OEM customization for axial flow pumps?
Absolutely we do. There are four types of customization that our engineering department is willing to undertake. Hydraulic re-design (custom impeller angle / blade number to suit a unique duty point outside of the books-AHW envelope); minimum order for a full hydraulic re-design is 3 units. Material upgrade (duplex stainless, Hastelloy, rubber lined casing for abrasive duty); 1 unit minimum for material only upgrade. Coating (ceramic loaded epoxy for erosion resistance, electropolish for food grade duty). Private-label branding (distributor partners can commission the AHW unit with your own nameplate, documentation, colour scheme); so please speak to our sales department to find out options & terms with partners. Custom projects will ship with the AHW-H lead time of 90-120 days.
