• May , 08 2023

Introduction to D363H-16C Butt Welding Metal Seal Butterfly Valve： The D363H-16C butt welded metal sealing butterfly valve adopts a precise J-shaped elastic sealing ring and a three-layer metal hard sealing structure with three eccentrics. It is widely used in industrial pipelines such as metallurgy, power, petrochemical, water supply and drainage, and municipal construction where the medium ...

• May , 16 2023

Introduction to straight through diaphragm valve: A straight through diaphragm valve is a special form of block valve, whose opening and closing parts are a diaphragm made of soft material, which separates the valve body cavity from the valve cover cavity and driving components. The valve has an elastic and disturbable diaphragm connected to the compressed part by bolts. The compressed part is ope...

• May , 19 2023

Valves are control components in fluid conveying systems that have functions such as cutoff, regulation, diversion, prevention of reverse flow, pressure stabilization, diversion, or overflow pressure relief. According to different classification standards, there are various types of valves, and each valve has its own unique features. 1. By valve type Block valve: Block valve, also known as closed ...

• Jun , 14 2023

(1) Wedge type single gate valve ① The structure is simpler than that of an elastic gate valve; ② At higher temperatures, the sealing performance is not as good as elastic gate valves or double gate valves; ③ Suitable for high-temperature media prone to coking. (2) Elastic gate valve It is a special form of wedge type single gate. Compared with wedge gate valves, they have good sealing performance...

• Jun , 25 2023

Prohibit 1 Hydraulic test shall be carried out under Negative temperature during winter construction. Consequence: Due to the rapid freezing inside the pipe during the hydraulic test, the pipe freezes out. Measures: Try to conduct a water pressure test before winter construction, and after the test, blow the water clean, especially the water inside the valve must be removed completely, otherwise t...

• Jul , 04 2023

The purpose of using a check valve is to prevent reverse flow of the medium, and a check valve is generally installed at the outlet of the pump. In addition, a check valve should also be installed at the outlet of the compressor. In short, in order to prevent reverse flow of the medium, check valves should be installed on equipment, devices, or pipelines. Generally, vertical lift check valves are ...

• Jul , 04 2023

The fifth China Valve City Longwan International Valve Exhibition, which lasted for three days, was successfully concluded at the Wenzhou Olympic Convention and Exhibition Center on the afternoon of May 29th. More than 400 companies showcased their costumes at this exhibition, attracting 103 national merchants from Fujian, Tianjin, Shanghai, Jiangsu, Henan, Hebei, Beijing, Guangzhou, and internati...

• Jul , 06 2023

A check valve, also known as a check valve, is an automatic valve that relies on the pressure of the flowing medium in the pipeline to push the valve disc to close and open the valve. When the medium stops flowing, the check valve disc closes, effectively preventing the medium from flowing back in the pipeline, which plays a significant role in ensuring the safety of the pipeline. Check valves can...

• Jul , 06 2023

Plug valve, a valve that uses a plug body with a through hole as the opening and closing component. The plug body rotates with the valve stem to achieve opening and closing action. A small plug valve without packing is also known as a "cock". The plug body of the plug valve is mostly a conical body (also known as a cylinder), which forms a sealing pair in conjunction with the conical hole surface ...