Fire Safe Design for Ball Valves
- Mar 25, 2019
- Hits: 1164
Fire safe design for ball valve is a design that the material and the structure of ball valve can pass a fire test with limited leakage to the atmosphere and downstream after fire exposure. We will talk...
Classification of ball valves
- Mar 21, 2019
- Hits: 277
1. Floating ball valve The ball of the ball valve is floating. Under the action of the medium pressure, the ball can generate a certain displacement and press against the sealing surface at the outlet...
The Anti-Static Device of Ball Valves
- Mar 18, 2019
- Hits: 2990
In this article, we will talk about the anti-static device of ball valve. During the process of valve operating, the friction between the soft seat and the metal ball will cause static inside the...
A Brief Introduction of Ball Valve
- Mar 15, 2019
- Hits: 147
The ball valve is a valve that uses a ball with a circular through-hole as a starting and closing member, and the ball moves with the valve stem to realize the opening and closing action. The opening...
Anti Blowout Stem of Ball Valves
- Mar 11, 2019
- Hits: 3681
Fireproofing, anti-static and anti-blowout stem are three important design features of ball valves. In this article, we will discuss anti-blowout stem in details. Anti-blowout stem means that the stem...
What is a butterfly valve?
- Mar 07, 2019
- Hits: 58
A butterfly valve is composed of a valve body, a disc, a valve stem, and a handle. It adopts a disc type opening and closing member, the disc is fixed on the valve stem, and the valve rod is rotated 90...
Metal Seated Ball Valves and Soft Seated Ball Valves
- Mar 04, 2019
- Hits: 217
We usually classify the seats of ball valves into metal seated type and soft seated type. This article is to specify the main differences between metal seated ball valves and soft seated...
What is a check valve?
- Feb 28, 2019
- Hits: 50
A check valve refers to a valve that automatically opens and closes the valve flap by means of the flow of the medium itself, and is used to prevent the medium from flowing backward. ★ Lifting type:...
Side Entry, Top Entry, and Welded Body Ball Valves
- Feb 25, 2019
- Hits: 2316
Generally speaking, ball valves are divided into three types from the perspective of body style. There are side entry, top entry, and welded body ball valves. The main difference is based...
What is a globe valve
- Feb 21, 2019
- Hits: 49
A globe valve is used to regulate the flow of the medium, the valve rod axis of the globe valve is perpendicular to the seat sealing surface. It is open by driving the valve core up and down. Once the...