Advanced Cast Steel Multistage Booster Pump for High Performance Usage

Product Details
Customization: Available
After-sales Service: Online After-Sale Service
Warranty: 12 Months
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Plant Area
>2000 square meters
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
  • Advanced Cast Steel Multistage Booster Pump for High Performance Usage
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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
  • Product Application
  • Facilities & Equipments
  • FAQ
Overview

Basic Info.

Model NO.
SHDG85-45/8
Max.Head
>150m
Max.Capacity
>400 L/min
Driving Type
Motor
Impeller Number
Multistage Pump
Working Pressure
High Pressure Pump
Influent Type of Impeller
Single Suction Pump
Position of Pump Shaft
Horizontal Pump
Pump Casing Combined
Verticaljoint Surface Pump
Mounting Height
Suction Centrifugal
Impeller
Closed
Usage
Pump, Pumps, Condensate Pump, Circulating Pump
Material
Cast Iron, Cast Steel, Stainless Steel, Bronze
Seal Type
Mechanical Sea or Packing Gland Seal
Coupling
Flexible Pins/Disc
Driver
Electric Motor/Diesel Engine
Transport Package
Plywood Case
Specification
2200*900*1500mm
Trademark
SEMHAI or OEM
Origin
China
HS Code
8413709990
Production Capacity
1000000sets/Year

Product Description

Advanced Cast Steel Multistage Booster Pump for High Performance Usage

Product Description

Experience the pinnacle of fluid transfer technology with the SHD and SHDG single-suction, multistage segmental centrifugal pumps, expertly crafted to convey water or liquids with similar physical and chemical properties, devoid of solid particles. The SHD model is adept at managing fluids with temperatures below 80 ºC, making it an ideal choice for applications in mines, factories, and urban water management systems. Meanwhile, the SHDG variant excels at transporting fluids up to 105 ºC, perfectly suited for use as a boiler feed pump or in the delivery of hot water and other high-temperature scenarios.

Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage

Structural features
The robust SHD and SHDG pumps are meticulously engineered with vital components such as stator, rotor, bearings, and a sophisticated shaft seal.
1, Stator part: This section is ingeniously designed with inhalation, middle, and spit sections, along with precision guide vanes. The segments are securely clamped using tension bolts, forming the dynamic heart of the system. The SHD model boasts a horizontal inlet and vertical outlet configuration, whereas the SHDG model features both vertical inlet and outlet, optimizing flow dynamics.
2, Rotor parts: Comprising the central shaft, innovative impeller, balance plate, and durable bushings, this assembly is pivotal for performance. The shaft transmits power directly to the impeller, driving its function. The axial forces are expertly balanced by the balance plate, while both shaft ends are fortified with replaceable sleeves for long-lasting protection.
3, Bearing part: Incorporating two advanced bearing types: rolling and sliding bearings for seamless operation.
Sliding bearing systems are composed of a robust bearing body, caps, dust disk, oil level gauge, and rejection mooring rings, all lubricated with high-viscosity oil. Rolling bearings, on the other hand, include a main body, bearings, and glands, utilizing grease for effective lubrication.
4, Shaft seal parts: Choose between mechanical or packing seals, featuring water segment seals and retaining ring components secured at the tail cover letter. The seal chamber fluid plays a critical role in water sealing, cooling, and lubrication. The SHD pump sources its seal water from the internal pressure, while the SHDG uses external cooling or normal temperature water. Seal water pressure must exceed the seal chamber by 0.05-0.1MPa, with cooling water pressure maintained at 0.15-0.3MPa for optimal performance.
Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage

Additionally, these pumps are directly driven by a prime motor through a flexible coupling, guaranteeing efficient clockwise rotation as viewed from the prime motor end.
Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage

The versatile SHD and SHDG single-suction multistage segmental centrifugal booster pumps offer the flexibility of being powered by either an electric motor or a diesel engine, catering to diverse operational needs.

Detailed Photos

Advanced Cast Steel Multistage Booster Pump for High Performance Usage
In the realm of multistage centrifugal pumps, the substantial thrust generated by the unidirectional alignment of impellers necessitates a cutting-edge thrust balance device. This device, be it a balance disc or drum, is engineered to deftly reduce thrust to a manageable level, effectively harmonizing with a standard-sized thrust bearing for optimal performance.
Our impellers are crafted from a selection of premium materials such as cast iron, cast steel, stainless steel, and bronze, each chosen for its outstanding durability and performance.
Flexible Couplings
In contrast to rigid couplings, flexible couplings are designed to adeptly accommodate movement such as vibrations and thermal expansion, safeguarding against potential damage. This makes them exceptionally suited for scenarios with unavoidable misalignment between drive and pump shafts. Their superior vibration absorption minimizes excessive operating noise. While their design is more complex and costly, the long-term maintenance savings they offer due to protection of the shaft and bearings from wear and damage make them an economical choice.
We incorporate wear-resistant disc couplings or pin couplings, ensuring robust performance and longevity.
Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Packing seals have long been the cornerstone of sealing solutions, employing rope-like materials that encase the pump shaft, effectively filling voids and curbing fluid loss. However, as the gland packing material succumbs to wear over time, fluid loss may escalate, potentially hindering lubrication efficiency and complicating replacement procedures.

In diverse applications where leakage is a crucial concern, mechanical seals are the go-to choice over traditional packing seals. Renowned for their durability, mechanical seals are engineered to withstand significant stress, employing multiple sealing points to virtually eradicate leakage, providing a robust and reliable sealing solution.

Product Parameters

Flow rate 6-1000m3/hr
Head rate 25-650m
Speed 1450-2900rpm
Medium temperature 0-105 ºC
Diameter 40-350mm
Advanced Cast Steel Multistage Booster Pump for High Performance Usage

Product Application


Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Our Advanced Cast Steel Multistage Booster Pump is an indispensable asset in pressure boosting systems. It thrives under conditions that demand unwavering flow and pressure. Discover the transformative projects that benefit from the reliability and efficiency of horizontal multistage pumps, such as:
Mine dewatering, ensuring efficient removal of excess water for safe and productive mining operations.
High density living, meeting the demands of modern urban developments with consistent pressure and flow.
Snow making, crafting the perfect winter wonderlands with precision and reliability.
Boiler feed systems, providing the necessary support for smooth, continuous operation.
Reverse Osmosis, offering exceptional support for advanced water purification processes.
Industrial applications, powering a wide range of demanding environments with top-tier performance.
Condensate management, ensuring optimal handling of condensed steam for effective system operation.
High pressure cleaning/wash down facilities, delivering powerful and efficient cleaning solutions.
Jacking pumps for fire hydrant systems, ensuring rapid and reliable response in emergency situations.
Irrigation and fire hose feed supply, sustaining vital operations with dependable water delivery.
Showers, elevating everyday experiences with heightened water pressure and enjoyment.
Co generation, supporting energy-efficient systems that maximize resource use.
Spray systems, achieving uniform distribution and optimal coverage for varied applications.
Pressure Boosting, transforming ordinary water systems into extraordinary solutions with enhanced performance.

Facilities & Equipments

Advanced Cast Steel Multistage Booster Pump for High Performance Usage
Advanced Cast Steel Multistage Booster Pump for High Performance Usage

FAQ

A. What are the multi stage pump parts?
The multistage pump parts are very similar to those of the standard Centrifugal pump except for the Multistage Centrifugal pump where the additional parts are diffusers which efficiently channel the fluid into the eye of the impeller or to the following stage. In the side channel pump, there are intermediate plates with the scalloped side channel and liquid parts.
In multistage centrifugal pumps, because of the high thrust that is generated due to the impellers facing in the same direction, there will be a thrust balance device i.e balance disc or balance drum which reduces the thrust to a level which can be managed by a standard sized thrust bearing.

B. How does a multi stage pump work?
A multistage pump operates by one impeller feeding into the next impeller and the number of impellers required depend on the discharge pressure requirement. Liquid enters the pump and then passes through the various number of impellers in a sequence from the left to right.

C. What are the applications and uses for multi stage pumps?
The applications for multi stage pumps are many and varied and can be used for delivering water to high rise buildings, reverse osmosis (RO), boiler feed water, spraying, high pressure cleaning, water works, heating, condensate, fuel delivery, oil and gas production, power generation & mining and other high pressure and temperature applications..

D. What are the different types of multi stage pumps?
Types of multistage pumps include;
Horizontal Multistage Centrifugal pump (above ground)
Vertical Multistage Centrifugal pump (above ground)
Submersible/Sump pump types
Side Channel pump
Combination pumps i.e Centrifugal low NPSH first stage with side channel additional stage.
Horizontal split case pump
Vertical Turbine pump
Sanitary Multistage pump

E. What are the advantages of using a multi stage pump?
If we were to compare the Centrifugal multi stage pump to a high pressure duty pump - the Centrifugal multi stage pump even though it is more complex and costly, it would probably be a better hydraulic fit, have a better efficiency and be more reliable. With its hydraulic modules, the ability to supply additional impellers and its ability to trim those impellers, the duty point can me met exactly without compromise. The selection is more likely to be close to 'BEP' and will run efficiently and reliably.
Multi stage pumps can be configured to have an interstage bleed off if there are multiple duty points required. It may be possible to run a multistage pump at a lower speed than a single stage centrifugal pump which may offer an efficiency advantage but it will certainly run much quieter which is an important consideration in today's world. A 3 dBA increase represents a doubling of sound as the sound scale is logarithmic.

F. What is difference between a single stage and a multi stage pump?
A single stage pump uses one impeller whereas a multi stage pump uses 2 or more impellers (some manufacturers use 80 or more impellers).
There are additional components in a multi stage pump which are required for channelling the fluid from the first stage to the following stage i.e diffusers.
Multi stage pumps have a thrust balance device and there may also be intermediate bearings (lubricated by the pumpage) to steady the shaft plus other minor differences.

G. How do you read a multistage pump curve?
You read a multi stage pump curve in exactly the same way as you read any other pump type curve however some manufacturers will publish single stage curves which means that this has to be multiplied out to establish the number of stages required, however be aware that the side channel pumps have their maximum power at zero flow and the power decreases with increasing flow which is the reverse of a centrifugal pump.

H. What is the difference between a vertical multistage pump and a horizontal multistage pump?
The main differences between a vertical multi stage pump and a horizontal multi stage pump are;
1.The orientation of the pump
2.The vertical multi stage pump is above ground and may be used where there are space limitations however the motor needs to be removed before maintenance can be performed.
3.Vertical multi stage pumps are used in some applications where the motor needs to be lifted from the sump so that the unit can be maintained. It is common in vertical pumps for the thrust load to be taken by the motor e.g. VTP turbine pumps which have electric motors specifically designed for this type of pump to eliminate the need for a thrust bearing in the pump resulting in less complexity and costs. VTP pumps can be produced with column lengths of more than 100 metres.
4.Horizontal multi stage pumps are mounted using feet which for high temperature applications are a special design to allow for thermal growth and thus avoid operating issues due to expansion and contraction. They would need to be aligned with the electric motor. On vertical pumps, the mounting is perhaps simpler i.e for sump pumps, a support plate would be fixed with standard bolting and generally no alignment is required as the motor is flanged and it is self aligning with the corresponding register.

I. Which type of multistage pump is more commonly used in industry?
The most common type of multi stage pump used in Industry is the horizontal multi stage pump and vertical multi stage pump (above ground) mounted centrifugal pumps. However, multi stage side channel pumps would also be relatively common along with the vertical turbine pumps.

SEMHAI can offer a full range of Flowserve's Multi stage pumps.We provide localised technical support & on-site service engineering to support your operational needs.

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