Blogs
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History of ball valves
The earliest example similar to the ball valve is the valve patented by John Warren in 1871. It is a metal seated valve with a brass ball and a brass seat. Warren finally gave his design patent of brass ball valve to John Chapman, the head of Chapman Valve Company. Whatever the reason, Chapman ne...Read more -
Brief introduction of PVC ball valve
PVC ball valve PVC ball valve is made of vinyl chloride polymer, which is a multi-functional plastic for industry, commerce and residence. PVC ball valve is essentially a handle, connected to a ball placed in the valve, providing reliable performance and optimal closure in various industries. Des...Read more -
How to select valves with different temperatures?
If a valve must be selected for high temperature conditions, the material must be selected accordingly. The materials of valves shall be able to withstand high temperature conditions and remain stable under the same structure. Valves at high temperatures must be of robust construction. These mate...Read more -
Basic knowledge of gate valve
Gate valve is the product of industrial revolution. Although some valve designs, such as globe valves and plug valves, have existed for a long time, gate valves have occupied a dominant position in the industry for decades, and only recently did they cede a large market share to ball valve and bu...Read more -
Application, advantages and disadvantages of butterfly valve
Butterfly valve The butterfly valve belongs to the quarter valve category. Quarter valves include valve types that can be opened or closed by turning the stem a quarter. In butterfly valves, there is a disc attached to the stem. When the rod rotates, it rotates the disc by a quarter, causing the ...Read more -
Application and characteristics of check valve
application Almost all conceivable pipeline or fluid transportation applications, whether industrial, commercial or domestic, use check valves. They are an indispensable part of daily life, although invisible. The sewage, water treatment, medical treatment, chemical processing, power generation, ...Read more -
Introduction and application of stop valve
The stop valve is mainly used to regulate and stop the fluid flowing through the pipeline. They differ from valves such as ball valves and gate valves in that they are specifically designed to control fluid flow and are not limited to closing services. The reason why the stop valve is so named is...Read more -
How to Join PPR Pipe
Although PVC is the most common non-metallic pipe in the world, PPR (Polypropylene Random Copolymer) is the standard pipe material in many other parts of the world. The PPR joint is not PVC cement, but is heated by a special fusion tool and basically melted into a whole. If created correctly with...Read more -
How to distinguish various chip ball valves in hotel engineering?
Distinguish from the structure The one-piece ball valve is an integrated ball, PTFE ring, and lock nut. The diameter of the ball is slightly smaller than that of the pipe, which is similar to the wide ball valve. The two-piece ball valve is composed of two parts, and the sealing effect is better ...Read more -
Causes of problems in the injection molding process of PVC pipe fittings
Injection molding pipe fittings often encounter the phenomenon that the mold cannot be filled in the process of processing. When the injection molding machine just started working, because the mold temperature was too low, the heat loss of the molten PVC material was large, which was prone to ear...Read more -
With a backlog of 23,000 heavy containers, nearly 100 routes will be affected! List of notices of the ship’s Yantian jump to port!
After suspending the receipt of export heavy cabinets for 6 days, Yantian International resumed receiving heavy cabinets from 0:00 on May 31. However, only ETA-3 days (that is, three days before the estimated ship arrival date) are accepted for export heavy containers. The implementation time of ...Read more -
Calculation method of PE pipe kilogram pressure
1. What is the pressure of PE pipe? According to the national standard requirements of GB/T13663-2000, the pressure of PE pipes can be divided into six levels: 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, and 1.6MPa. So what does this data mean? Very simple: For example, 1.0 MPa, which means that the...Read more
