China Standard Centrifugal Water Pump Parts Hf-7c with high quality

Product Description

Product Description
>> Pump Body: cast iron & support under special anti-rust treatment
>> Impeller: stainless steel impeller, brass impeller, ppo impeller
>> Mechnical Seal: carbon / ceramic / Stainless Steel

Working Range
>> Liquid: clean liquids without suspended solids, non-aggressive
>> Max ambient temperature up to 40ºC
>> Max fluid temperature up to 40ºC/ 80ºC optional
>> Max. working pressure 10 bar

>> Household Water Supply
>> Water Supply System
>> Cooling System
>> Boost System

Product Picture

Product Data

Type Power Current Q max H max Speed
KW HP A L/min m r/min
HF-EGA 0.75 1 4.8 200 20 2850
HF-5AM 1.1 1.5 7.3 500 15 2850
HF-5AN 1.5 2 10 500 20 2850
HF6A 1.5 2 9.8 800 14.5 2850
HF6B 2.2 3 10.9 1000 16 2850
HF6C 3 4 12.7 1200 18 2850
HF7A 1.1 1.5 10 900 12 2850
HF7B 1.5 2 10 1000 14 2850
HF7C 2.2 3 10.9 1000 16 2850
HF7D 3 4 12.7 1200 18 2850

Company Profile

ZheJiang Zigma Co., Ltd is a developing industrial in China provides a wide range of water pumps and pump accessories to customers around the world.Zigma has its own strong technical development team in China.In a new product development process, we support customers with professional advice and optimized solutions.Our company centers on people, equipped with a large technology team and management talent, forming significant human resource and powerful technology advantagement.
New factory was established in 2571, Located in CZPT city, ZheJiang province, the most famous ” Electrical Machine City ” in China.With brand-new structure inspection room to analyze the material, Pump performance test room to test all pump’s flow, pressure, and power consumption, Motor temperature rising test room to check all motors for pump production.ISO9001,SGS and CE Test,and pump life test, etc… All Safety inspections and TUV certifications are proof that our products are well designed down to the finest details.


Production Line


Q: What is your MOQ of this item?
A: Our MOQ is 300PCS. 

Q: How can I pay for my order?
A: Please send us your order details including your name(company name), delivery address, phone number, I will make a PROFORMA Invoice for you and you can pay by T/T or L/C at sight.
Q: What is your terms of payment?
A: 100% in advance for order amount less than USD5000. And if order amount is above USD5000, payment term can be 30% by T/T in advance, balance against copy of B/L.
Q: How long is your warranty?
A: Motor part for 2 year,whole pump for 1 year.
Q: What is the delivery time?
A: It depends on the order quantity. It usually takes 30 days upon receipt of your 30% deposit by T/T. Sample can be delivered within 7 days.
Q: How about the freight cost?
A: It depends on your final order quantity, final gross weight and final dimension when shipped by sea and by air. When less than 100kg. We can process shipping by express.
Q: What is your port of loading?
A: HangZhou port or your forwarder port in China.


Mechanical advantages of pulleys

A pulley is a mechanical device used to transmit motion. The device has a variety of uses, including lifting heavy objects. In this article, we will discuss the mechanical advantages, types, common uses and safety considerations of pulleys. We’ll also discuss how to identify pulleys and their components, and what to look out for when using pulleys. Read on to learn more about pulleys.

Mechanical advantages of pulleys

The mechanical advantage of pulleys is that they change the direction of force from 1 direction to another. In this way, the person lifting the heavy object can change its position with minimal effort. The pulleys are also easy to install and require no lubrication after installation. They are also relatively cheap. Combinations of pulleys and cables can be used to change the direction of the load.
The mechanical advantage of a pulley system increases with the number of ropes used in the system. The more cycles a system has, the more efficient it is. If the system had only 1 rope, the force required to pull the weight would be equal. By adding a second rope, the effort required to pull the weight is reduced. This increase in efficiency is known as the mechanical advantage of the pulley.
Pulleys have many uses. For example, ziplines are 1 application. This is a good example of pulleys in use today. Pulley systems can be complex and require a lot of space. Using ziplines as an example, advanced students can calculate the mechanical advantage of multiple pulleys by dividing the work done by each pulley by the remainder or fraction. Regents at the University of Colorado created a zipline with K-12 input.
Another use for pulleys is weight lifting. This technique is very effective when using multiple strands of rope. A single rope going from 1 pulley to the other with just 2 hands is not enough to lift heavy objects. Using a pulley system will greatly increase the force you receive. This power is multiplied over a larger area. So your lifting force will be much greater than the force exerted by a single rope.
The pulley is a great invention with many uses. For example, when lifting heavy objects, pulleys are a great way to get the job done, and it’s easier to do than 1 person. The pulley is fixed on a hinge and rotates on a shaft or shaft. Then pull the rope down to lift the object. A pulley assembly will make the task easier. In addition, it will also allow power to be transferred from 1 rotary shaft to another.

Types of pulleys

If you are an engineer, you must have come across different types of pulleys. Some pulleys come in multiple types, but a typical pulley has only 1 type. These types of pulleys are used in various industrial processes. Here are some common types of pulleys that engineers encounter on the job. In addition to the above, there are many more. If you haven’t seen them in practice, you can check out a list of the different types below.
Fixed pulleys: Fixed pulleys have a roller attached to a fixed point. The force required to pull the load through the fixed pulley is the same as the force required to lift the object. Movable pulleys allow you to change the direction of the force, for example, by moving it laterally. Likewise, movable pulleys can be used to move heavy objects up and down. Commonly used in multi-purpose elevators, cranes and weight lifters.
Composite pulleys combine fixed and movable pulleys. This combination adds to the mechanical advantage of both systems. It can also change the direction of the force, making it easier to handle large loads. This article discusses the different types of pulleys used for lifting and moving. Braided pulleys are an example of these pulleys. They combine the advantages of both types.
A simple pulley consists of 1 or more wheels, which allow it to reverse the direction of the force used to lift the load. On the other hand, dual-wheel pulleys can help lift twice the weight. By combining multiple materials into 1 pulley, a higher ME will be required. Regardless of the type of pulley, understanding the principles behind it is critical.
Pulleys are an important part of construction and mechanical engineering, and their use dates back to Archimedes. They are a common feature of oil derricks and escalators. The main use of pulleys is to move heavy objects such as boats. In addition to this, they are used in other applications such as extending ladders and lifting heavy objects. The pulley also controls the aircraft rudder, which is important in many different applications.

Commonly used

Common uses for pulleys are varied. Pulley systems are found throughout most areas of the house, from adjustable clotheslines to motor pulleys in different machines. Commercially, 1 of the most common uses is for cranes. Cranes are equipped with pulleys to lift heavy objects. It is also common to use pulley systems in tall buildings, which allow tall buildings to move with relative ease.
Pulleys are commonly used in interception and zipline systems, where a continuous rope around the pulley transmits force. Depending on the application, the rope is either light or strong. Pulleys are formed by wrapping a rope around a set of wheels. The rope pulls the object in the direction of the applied force. Some elevators use this system. Pull a cable on 1 end and attach a counterweight on the other end.
Another common use for pulleys is to move heavy objects. Pulleys mounted on walls, ceilings or other objects can lift heavy objects like heavy toolboxes or 2×4 planks. The device can also be used to transfer power from 1 rotating shaft to another. When used to lift heavy objects, pulleys can be used to help you achieve your goals of a good workout.
Pulley systems have a variety of uses, from the most basic to the most advanced. Its popularity is indisputable and it is used in different industries. A good example is timing belts. These pulleys transmit power to other components in the same direction. They can also be static or dynamic depending on the needs of the machine. In most cases, the pulley system is custom made for the job.
Pulley systems can be simple or complex, but all 3 systems transfer energy efficiently. In most cases, the mechanical advantage of a single pulley is 1 and the mechanical advantage of a single active pulley is 2. On the other hand, a single live pulley only doubles the force. This means you can trade effort for distance. Pulleys are the perfect solution for many common applications.

Safety Notice

If you use pulleys, you need to take some safety precautions. First, make sure you’re wearing the correct protective gear. A hard hat is a must to avoid being hit by falling objects. You may also want to wear gloves for added protection. You should also maintain a good distance from the pulley so that nearby people can walk around it safely.
Another important safety measure to take before using a chain hoist is to barricade the area to be lifted. Use marker lines to prevent the load from sliding when moving horizontally. Finally, use only the sprocket set for vertical lift. Always install shackle pins before lifting. You should also wear personal protective equipment such as earplugs and safety glasses when using the chain hoist.
In addition to these safety measures, you should also use cables made from aerospace-grade nylon. They will last many cycles and are made of high quality materials. Also, make sure the cables are lubricated. These measures reduce friction and corrosion. No matter what industry you are in, be sure to follow these precautions to ensure a long service life for your cables. Consult the cable manufacturer if you are unsure of the appropriate material. A company with 60 years of experience in the cable industry can recommend the right material for your system.

China Standard Centrifugal Water Pump Parts Hf-7c     with high qualityChina Standard Centrifugal Water Pump Parts Hf-7c     with high quality