Robust Fire Fighting Centrifugal Pump with Mechanical Seal Technology

• Customization: Available
• After-sales Service: Online After-Sale Service
• Warranty: 12 Months
• Model NO.: SOW250-390
• Max.Head: >150m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: Middle Pressure Pump
• Influent Type of Impeller: Double-Suction Pump
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Horizontal Split Pumps
• Mounting Height: Suction Centrifugal
• Impeller: Closed
• Usage: Pumps, Condensate Pump, Circulating Pump
• Material: Cast Iron, Stainless Steel, Bronze
• Driver: Electric Motor, Diesel Engine
• Seal: Mechanical Seal, Packing Gland Seal
• Coupling: Flexible Pin/Diaphragm
• Transport Package: Plywood Case
• Specification: 4000*1700*2300mm
• Trademark: SEMHAI
• Origin: China
• HS Code: 8413709990
• Production Capacity: 100000sets/Year
• Package Size: 220.00cm * 190.00cm * 190.00cm
• Package Gross Weight: 2200.000kg

Product Description

Product Description

Introducing the SOW Series Horizontal Single-Stage Split-Casing Double-Suction Centrifugal Pump, the pinnacle of innovation in double-suction pump technology. This cutting-edge, latest generation pump boasts a seamless spectrum, refined model, and extraordinary performance that sets it apart. Crafted with an innovative and reliable structure, the maintenance is not only easy but ensures an extended lifespan. With an impressive range of 46 models and 390 basic specifications, our SOW pump is engineered to perfection. By utilizing prime and modified impeller techniques, as well as cutting-edge design, this pump covers a wide performance spectrum, delivering unparalleled efficiency to meet every user's demand across various flow and head conditions. Meticulously crafted and subject to rigorous quality control, this product stands at the forefront of domestic technology. Conforming to ISO2548C, GB3216C, and GB/T5657 standards, this pump embodies excellence in engineering.

Designed with a double-suction impeller, this pump minimizes axial force to ensure peak performance. Utilizing an advanced CAD hydraulic model, it achieves optimal design and superior functionality. The inclusion of a prototype impeller, along with the option for a modified impeller, allows the pump to adapt to diverse working environments, enhancing its efficiency significantly.
Engineered for excellence, the pump employs a double volute form to diminish radial force, which results in reduced bearing stress and prolonged lifespan. Featuring straightforward installation and automatic pump cover calibration, it caters to various user site specifications by allowing flexible positioning of the pipeline and motor. The pump inlet is crafted for smooth, swirl-free operation, ensuring minimal loss and stable performance. Precision casting endows the pump casing and impeller surfaces with smooth finishes, providing exceptional anti-cavitation capabilities and maximizing efficiency.

Pump Speed	298,372,490,585,740,990,1480 and 2950rpm;
Motor Voltage	380V/415V, 3.3KV, 6KV and 10KV;
Caliber	80-1600mm;(flange dimensions conform GB/T17241.6-1998)
Flow range	68-30000m3 / hr
Head range	6-230m;
Temperature range	Medium maximum temperature ≤80'C, ambient temperature ≤40'C;
Maximum operating pressure (inlet pressure + pump pressure)	1.0Mpa (G) (Hsp75m) or 1.6Mpa (G) (Hsp75m);Special configuration of up to 2.5Mpa (G);
Transmission medium	Water or other liquids physical and chemical properties similar to water;
Seal plumbing parts	No installment when inlet pressure above 0.03Mpa (G)
Structural Design	Single-stage double-suction volute axial centrifugal pump, horizontal installation, driver (motor or engine) may be set on the left or right side of the pump (ie, outlet-oriented, the driver is counterclockwise in the left side, clockwise in the right side).

Detailed Photos

 

Between-the-bearings: Discover the engineering marvels of split-case pumps, renowned as 'between-the-bearings' pumps. This ingenious design mounts the impeller on a shaft, meticulously supported by bearings on both sides, ensuring unparalleled stability and efficiency.

Double-suction impeller: Embrace the unique advantage of split-case pumps, the only common type boasting a double-suction impeller. This feature significantly reduces the load on bearings compared to single-suction designs, enhancing durability and performance.

Our high-precision casting impeller guarantees optimal performance, featuring materials crafted in cast iron, stainless steel, and bronze to meet diverse and rigorous demands.

 

Packing seals have long stood as the cornerstone of sealing solutions, employing rope-like materials to tightly wrap around pump shafts, minimizing fluid loss. Yet, as time progresses, wear may lead to increased fluid loss and hinder lubrication or ease of replacement, crucial for optimal functionality.

Mechanical seals are the modern choice over traditional packing seals for applications where leakage must be prevented. These advanced seals offer greater durability and resilience, utilizing multiple sealing points to effectively eliminate leakage concerns.

 

State-of-the-art Flexible Couplings
In contrast to rigid couplings, flexible couplings are engineered to manage movement, such as vibrations and thermal expansion, without incurring damage. Ideal for applications where a degree of misalignment exists between drive and pump shafts, they excel in absorbing vibrations and reducing operational noise. Although their design is more complex and costly, flexible couplings offer long-term savings by protecting shafts and bearings from damage and premature wear.

We incorporate wear-resisting disc couplings or pin couplings for enhanced durability and performance.

Product Application

This robust and reliable fire fighting centrifugal pump, featuring cutting-edge mechanical seal technology, is engineered for superior performance across a multitude of demanding applications. It is a cornerstone for urban water supply and drainage systems, ensuring consistent and efficient flow management in these vital networks. Our pump stands as a vital component in central heating systems and drainage operations, delivering optimal performance for industries such as iron and steel metallurgy and oil refineries. It serves the critical needs of paper mills, enhancing operational efficiency and reliability. The pump is indispensable in the oil industry, power plants, and during the construction of airports, contributing to streamlined operations and safety. Chemical plants and textile mills benefit from its robust design, while sugar mills and additional chemical processing facilities rely on its effectiveness. Its utility extends to consumer drainage systems in plant mines, making it a versatile choice for complex operations. In air conditioning systems, it ensures the seamless supply and management of water resources. Moreover, agricultural irrigation and drainage systems, along with a variety of water project applications, are markedly improved with this pump, providing reliability and longevity where it matters most.

Facilities & Equipments

 

Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated enduring partnerships with a prestigious array of prominent domestic pump-testing institutions, which include:
The revered National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City,
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, situated in Zhenjiang City,
The distinguished Ministry of Agriculture, Water Pump Quality Supervision, and Testing Center, nestled in Chongqing City,
The notable Shanghai Mechanical and Electrical Products Quality Inspection Center, based in Shanghai City, among others.