Premium Split Case Pumps from YOUNAI
- Highly efficient, low energy consumption
- High performance for demanding large-capacity at medium pressure
- Low Net Positive Suction Head Required (NPSHR)
- Split casing enables easy disassembly and maintenance
- Available in horizontal and vertical designs
- Durable, reliable, and long lifetime
Split Case Pumps
Best solution for high-flow at medium pressure.
Tailor-Made Large Split Case Pumps
Three Decades of Split Case Pump Expertise
Customized large split case pumps for ultra-high capacity of water transportation projects. YOUNAI offers you exceptional customized services.
Suction diameter up to 2300mm / 50 inch discharge outlets to meet extremely large flow rates.
Best-in-class hydraulic design maximizes consumption reduction.
Heavy-duty bearing units with superior lifetime compared to industry standards.
Rich experience in large-scale pumps production.
Large-scale facilities and well trained workers.
Provide highly innovative and reliable solutions throughout your project lifecycle.
Successful Fluid Transfer: Driven by YOUNAI
The BB1 type split case pump is single stage, horizontal axially split, between bearing, double volute casing, and mirror partition structural pump for industrial water supply system. Features a reliable design, high efficiency, energy saving and long lifetime, widely for large flow and higher head applications.
BB3 Horizontal Split Case Multistage Pump
YOUNAI horizontal multi-stage axially split case pumps are designed for large volumes at high pressure in heavy-duty applications, offering highly efficient, custom-made solutions. Available in two or four stages, they meet severely demanding requirements. Engineered to Hydraulic Institute standard as BB3 type pumps. Pressure rating, sealing performance, service life, and safety comply with API 610. They run stably and reliably in heavy-duty, high-pressure conditions for specific boiler feed water, water pipelines, and cooling water applications.
- Max flow: 454 m3/h
- Max head: 670 m
Benefits of Split Case Pumps
A vast range of axially split case pump models can be used for wide variety of applications; The double volute type impeller rotor parts design generates a large water absorption capacity, capable of meeting large flow and high head transportation requirements;
Sturdy shafts support super-large-sized pump casings, delivering stronger bearing capacity and extended service time – resulting in reduced owner’s operating costs.
Split case pumps are designed for easy to maintain without removing the motor and pipelines – significantly shortening downtime.
Vertical installation makes split case pumps more compact and reduces floor space requirements, which is why they are commonly referred to as vertical split case pumps.
In confined areas, vertical split case pumps are an excellent choice. This vertical arrangement is highly recommended for space-limited applications such as ships and mobile vehicles.
With the motor mounted above the pump, these units provide a smaller footprint and save more space than horizontal models, while delivering the same performance.
They address the specific pumping demands of the paper, pulp, and board industry. YOUNAI split case pumps benefit from an optimized hydraulic design that is suitable for headbox feed pumping. Minimized pressure pulsations result from optimized impeller and flow channel design, while low NPSHR ensures strong suction lift with excellent cavitation resistance.
Available materials:
- Cast iron
- Carbon steel
- Bronze impeller
- All bronze
- Stainless steel impeller
- All stainless steel
- Duplex stainless steel impeller
Related Pumps
Mixed Flow Pump
Slurry Pump
End Suction Pump
Axial Flow Pump
Vertical Propeller Pump
What is a split case pump?
A split case pump is a centrifugal pump featuring a two-sided suction impeller supported between bearings, sometimes called a mirror partition pump. The rotor part contains vertical turbine configuration , which delivers optimal hydraulic performance and high efficiency.
The semi-spiral suction chambers and spiral discharge volute of a single-stage double volute casing centrifugal pump are formed by the mating surfaces of the cover and casing at the horizontal split plane. This split-case design enables maintenance without removing the motor, inlet, or outlet piping. Simply remove the pump cover to access components, significantly reducing maintenance time and downtime.
Both suction and discharge ports are integrally cast with the pump body. This robust design ensures extended pump service time and lower prime investment cost
Split case pumps are ideally suited for water supply system, cooling tower circulations, and agricultural irrigation applications, delivering high efficiency, premium performance and long lifetime.
Why trust YOUNAI split case pumps?
Professional pump manufacturer provide professional advice of large flow delivery. With a long history of pump manufacturing, YOUNAI offers many references regarding the transportation of large volumes at higher head. YOUNAI offers a wide range of split case pumps, designed to handle fluids large-flow fluids at moderate head. These pumps are renowned for their high efficiency, quieter operation, and easy maintenance and service, and are widely used in various industrial fields.
Our focus goes beyond not only to ever-improving pump quality, extended lifetime, and enhanced energy efficiency—we also excel in delivering customized high-pressure solutions, particularly tailored large-scale split casing fluid systems.
It’s all about helping our customers successfully transport fluids, whether large flows, high pressure, corrosive, abrasive, or high-temperature fluids. We make efforts and technological investments to meet our customers’ requirements, enabling you to easily and smoothly solve the problems in fluid transportation. At YOUNAI, your satisfying experience as our customer matters greatly to us.
YOUNAI’s split case pumps deliver industry-leading performance with these key features:
High efficiency, stable operation, low noise, and extended continuous operation time;
Foot mounted installation with a compact pump unit structure;
Symmetrically arranged double impellers for hydraulic balance, eliminating axial thrust;
Available in horizontal or vertical designs;
Multiple models and series available to meet various large-flow, medium-head applications.
As a professional pump manufacturer and fluid equipment solution provider, YOUNAI is a long-term partner for customers across many industries.
Our split casing pumps are widely used in the following fields:
Industrial Processes: Power plant water supply systems, district cooling, mining operations, water jet cleaning systems, wastewater drainage, water transport and distribution, paper and board industry;
Municipal water systems & municipal drinking water supply;
Agricultural water supply, irrigation and flood control;
Fire protection & firefighting systems;
HVAC systems: cooling and heating conditioning.
Split case pumps serve as ideal fire pump solutions due to their compact structure design, high-flow high-head performance, and premium efficiency. Typical configurations include: diesel engines with automated control cabinet enabling automated start/stop; movable trailers for flexibility; or split case pump installation layout determined by fire truck space constraints.
