Rohde & Schwarz unveils a new portable microwave spectrum analyzer
- Nov 15, 2018
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News of valve inspection device In October 2018, Rohde & Schwarz launched three new standard models in Munich, with frequency ranges ranging from 5 kHz to 6 GHz, 13.6 GHz and 26.5 GHz, extending the...
What is a gate valve and how does it work?
- Nov 15, 2018
- Hits: 66
Gate valves, or sluice valves, as they are sometimes known, are valves that open by lifting a round or rectangular gate/wedge out of the path of the fluid. They are so named because the part that either...
The structure of a nozzle check valve
- Nov 10, 2018
- Hits: 88
The axial flow check valve has a simple structure and is mainly composed of a valve body, seat, disc, spring, guide sleeve, guide cover, and the internal structure. See as bellow picture. 1———Body；...
Why use extended bonnet for cryogenic valves?
- Nov 10, 2018
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The suitable temperature of the medium for cryogenic valves is -40℃～-196℃. Usually, cryogenic valves will adopt extended bonnet. The extended bonnet is used to specify low temperature valves including...
Basic and important steps of valve maintenance
- Nov 05, 2018
- Hits: 277
Once a valve is installed, it is important that it is properly maintained, so that it works in an efficient manner. Poor or no maintenance of a valve can result in severe problems, leading to many...
The invention of dual plate check valve
- Nov 05, 2018
- Hits: 52
The invention relates to a dual plate check valve, which mainly fixes and installs an elastic rubber disc inside the valve sealing surface. The elastic rubber is composed of a mounting...
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The differences between T-port vs L-port directional flows
- Oct 30, 2018
- Hits: 1482
To understand the "T"-port "L"-port, 3 way valves and what makes them different, it's important to first establish what each of these terms means. By clearly defining each term,...
A brief introduction of global industrial valves
- Oct 30, 2018
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The global industrial valves and actuators market size is expected to reach USD 145.87 billion by 2025 at a 4.14% CAGR over the forecast period, according to a study conducted by Grand View Research,...
Are all globe valves designed to lower to upper?
- Oct 27, 2018
- Hits: 25
The lower to upper design is for small flow resistance and saving effort when opening valves. Besides, when it's closed, gasket between body and bonnet and packing around stem don't bear force,...
Valve’s Forming Process Technology: Casting & Forging
- Oct 27, 2018
- Hits: 40
Casting Casting is a way which turn metal liquid to solid. It is a adaptable and flexible way, suitable for many kinds of metallic material, such as iron, carbon steel, alloy steel and so on. Also, casting...