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Products
Puede fabricar 26 series de productos, incluyendo bombas de circulación para grandes centrales eléctricas, bombas de condensación para grandes centrales eléctricas, bombas petroquímicas, bombas multietapa, bombas de aguas residuales y lodo, bombas multietapa autoequilibradas, bombas de doble succión y única etapa tipo split, y bombas centrífugas de succión simple y única etapa.
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Cases
La elección de más de cientos de miles de clientes, cubriendo industrias como minería de carbón, metalurgia, química, energía, recursos hídricos, alimentos, municipalidades y protección ambiental, y exportando a Asia Sudeste, África, América y otros lugares.
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Service
La empresa fue la primera en la industria en obtener las certificaciones internacionales del sistema de calidad ISO 9001:2008, del sistema de gestión ambiental ISO 14001 y del sistema de gestión de seguridad y salud ocupacional GB/T 28001, además de la certificación API 610 de la Asociación Estadounidense del Petróleo.
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About us
La empresa, fundada en 1989, es una empresa nacional de alta tecnología integral que integra diseño, investigación y desarrollo, fabricación y servicios; actualmente es una empresa clave en la industria china de bombas centrífugas y una de las grandes fábricas especializadas.
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Blogs
Con productos innovadores, calidad excepcional y servicios integrales, buscamos la verdad y la pragmática, avanzamos con iniciativa, y nos esforzamos por lograr el objetivo de ser "la marca líder en el campo de aplicación de bombas centrífugas en el país"! Raigada en Hunan, orientada a todo el país y hacia el mundo!
Product Center
Mechanical seal
The mechanical seal refers to a device that prevents fluid leakage, composed of at least one pair of end faces perpendicular to the axis of rotation that remain in contact and slide relatively under the pressure of the fluid and the elastic (or magnetic) force of the compensating mechanism, along with the adjustment of the auxiliary seal. The elastic loading mechanism and the auxiliary seal in the metal bellows mechanical seal are called metal bellows seal.
Summary of the mechanical seal:
The mechanical seal refers to a device that prevents fluid leakage, composed of at least one pair of end faces perpendicular to the axis of rotation that remain in contact and slide against each other under the pressure of the fluid and the elastic (or magnetic) force of the compensating mechanism, along with an auxiliary seal. The elastic loading mechanism and the auxiliary seal constitute the metallic bellows mechanical seal, known as the metallic bellows seal. In light seals, rubber bellows are also used as an auxiliary seal; due to the limited elasticity of the rubber bellows, a spring is generally required to provide the loading force.
Components of the mechanical seal:
1. Main components of the mechanical seal: rotating ring and stationary ring.
2. Auxiliary seals: sealing rings (with O, X, U shapes, wedge-shaped, flexible rectangular graphite, PTFE-coated rubber rings, etc.).
3. Elastic compensation mechanism: springs, thrust rings; spring seat and keys or various screws.
4. They are classified into single faces, double single faces, balanced type, unbalanced type, arbitrary rotation direction, and fixed rotation direction.
Principle of the mechanical seal:
The mechanical seal works through one or several pairs of end faces perpendicular to the axis that slide against each other, remaining in contact under the pressure of the fluid and the elastic (or magnetic) force of the compensating mechanism, along with an auxiliary seal, to achieve shaft sealing that prevents leaks.
The common structure of the mechanical seal consists of a stationary ring (static ring) 1, rotating ring (moving ring) 2, elastic element 3, spring seat 4, fixing screw 5, auxiliary seal ring of the rotating ring 6, and auxiliary seal ring of the stationary ring 8, among other components. The anti-rotation pin 7 is fixed on the cover 9 to prevent the rotation of the stationary ring.
The rotating ring and the stationary ring can also be called compensating or non-compensating rings depending on whether they have axial compensation capability.
Why Choose Us?
Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.
FAQ
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What products do you mainly produce?
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Can you help me choose a model?
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Why is the price quotation so slow?
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What information should I provide when I need a quote?
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Do you have centrifugal pumps in stock?
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What is your usual delivery time?
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Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。
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Zoomlian Pump Industry
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