S series horizontal split case double suction pump manufactured by China factory for water supply and HVAC
S Series API BB1 Horizontal Split Case Double Suction Pump

Centrifugal Pump

S Series API BB1 Horizontal Split Case Double Suction Pump

The S series is an API BB1 horizontal split case double suction pump designed for ultra‑high flow clean water transfer. Flow up to 15,000m³/h, head to 200m, power to 2000kW. Materials include cast iron, 304/316L, and cast steel. Ideal for municipal water supply, large irrigation, power plant circulating water, and HVAC. Axially split casing allows easy maintenance. ISO certified.
  • OEM
  • Factory Direct Supply
  • ISO9001 Certified
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Overview

Product Overview

Product Description

S Series BB1 Pump – High Flow, Low NPSH, Easy Maintenance

Horizontally split casing allows removal of top half without disturbing piping – full rotor access. Double‑suction impeller hydraulically balances axial thrust, extending bearing life. Wide flow range (80‑15,000 m³/h) with low NPSH requirement. Heavy‑duty shaft with replaceable wear rings. Available with packing or mechanical seals. API 610 BB1 compliant for critical service.

KEY FEATURES

  • Ultra‑High Flow Capacity: Delivers up to 15,000 m³/h – one of the largest flow rates available in a single‑stage horizontal pump.
  • API BB1 Compliant: Meets API 610 BB1 standard (axially split, single‑stage, between‑bearing) for critical industrial and petrochemical service.
  • Double‑Suction Impeller: Hydraulically balanced design eliminates axial thrust, extending bearing and mechanical seal life significantly.
  • Horizontally Split Casing: Top half casing removes easily for inspection of impeller, wear rings, and internal passages without disturbing piping or motor.
  • Low NPSH Requirement: Optimized suction housing and double‑inlet design minimize NPSH requirements, allowing installation with limited available head.

Specifications

Technical Parameters

Parameter Specification Parameter Specification
Product Name S Series API BB1 Horizontal Split Case Double Suction Pump Model S
Category API BB1 Horizontal Split Case Double Suction Pump Flow Rate 80 - 15000 m³/h
Head 10 - 200 m Power 30 - 2000 kW
Speed 1450 / 2900 rpm Suction & Discharge Diameter 100 - 800 mm
Max. Working Pressure ≤ 1.6 MPa Pump Body Material Cast Iron / 304 / 316L / Cast Steel
Seal Type Packing Seal / Mechanical Seal Liquid Temperature Range -20 to +80 ℃
Liquid Type Clean Water / Mildly Corrosive Liquids / Hot Water Installation Type Horizontal
Certification ISO9001 / ISO14001 / ISO45001

Custom models available upon request

Manufacturing

Precision engineering, advanced facilities.

Certifications

Global certifications for reliable performance.

OEM/ODM

Tailor-made pumps for your specifications.

Packaging

Robust export packaging for safe delivery.

Use Cases

Applications

High‑Capacity Water Movement for Municipal, Irrigation, Power, Industrial & HVAC Systems The S series split case double suction pump is the preferred choice for applications requiring massive flow rates at moderate heads, combining high efficiency with easy maintenance.

  • Waterworks & Municipal Supply

    Ideal for raw water intake, water treatment plant boosting, and city trunk main transmission – handling ultra‑high flows up to 15,000 m³/h.

  • Water Conservancy & Flood Control

    Perfect for large pump stations, irrigation districts, river water exchange, and emergency flood drainage.

  • Power & Cogeneration

    Reliable for power plant circulating cooling water, condenser cooling, boiler feed booster, and waste heat recovery.

  • Petrochemical (API Version)

    Suitable for crude oil transfer, cooling water, fire water, and process water with explosion‑proof and long‑cycle requirements.

  • HVAC & Air Conditioning

    Effective for large commercial buildings and industrial HVAC chilled/hot water circulation.

  • Mining & General Industry

    Capable of mine dewatering, factory process water, and industrial cooling water circulation.

Support

Frequently Asked Questions

What does API BB1 mean for this pump?
API 610 BB1 defines a horizontally split, single‑stage, between‑bearings centrifugal pump. The casing splits along the horizontal centerline, allowing removal of the top half for internal access without disconnecting piping. This design is ideal for high‑flow, moderate‑head applications where maintenance access is important, and it is the industry standard for large water and hydrocarbon transfer.
How does the double‑suction impeller benefit my system?
A double‑suction impeller draws liquid from both sides, which hydraulically balances axial thrust (eliminating the need for a heavy thrust bearing), reduces NPSH requirements by approximately 30% compared to a single‑suction pump, and allows higher operating speeds for the same suction conditions. It also results in smoother operation and longer mechanical seal life.
Can this pump handle raw water with small solids or sand?
The S series is primarily designed for clean or mildly dirty water (e.g., river water with fine sediment). For raw water containing sand or abrasives, we offer hardened wear rings and optional stainless steel impellers. For large solids or heavy sludge, please consider our SP self‑priming sewage pump or other specialty pumps.
What is the maximum pressure and temperature?
The standard S series has a maximum working pressure of 1.6 MPa (16 bar, 232 psi) and a liquid temperature range of -20°C to +80°C. For higher pressure or temperature requirements (e.g., up to 2.5 MPa or 120°C), please consult our engineering team for a modified version.
Do you offer a diesel‑driven version for emergency flood control?
Yes. The S series can be coupled with a diesel engine drive via a right‑angle gearbox or directly mounted. For mobile applications, we can supply the pump on a heavy‑duty trailer with suction/discharge hoses and a control panel. Please specify your required flow, head, and deployment scenario for a custom solution.

Have more questions? Our technical team is ready to help you select the right pump model.

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Need Help Selecting the Right Pump?

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Contact Information

WeChat: +86-13952764345
Address Industrial Park
Manufacturing District, China

What We Need

Flow Rate Required Specify your required flow rate (m³/h)
Total Head Needed Required pumping head (m)
Liquid Type Type of liquid to be pumped
Solid Particle Size Maximum solid size (mm)

Response Time

24-48h

Technical recommendations and quotations during business days

Our experienced engineers will analyze your application and provide detailed pump selection with complete technical specifications and pricing.

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