What is the Relief Valve (Pressure Relief Valve)?
- Apr 18, 2019
- Hits: 62
The relief valve (pressure relief valve) is a special type of safety valve in which the opening and closing member is in a normally closed state under the action of an external force. When the...
T Port & L Port Three-Way Ball Valves
- Apr 16, 2019
- Hits: 326
The three-way ball valve can be classified into T port type and L port type. What’s the difference between the two types? A T port three-way ball valve can connect any pair of ports,...
What is a plunger valve?
- Apr 11, 2019
- Hits: 368
The closing of the plunger valve is composed of a stainless steel plunger, two upper and lower elastic sealing rings and a metal frame. The sealing function is achieved by the tight fit of the plunger...
Fire Safe Test API 6FA and API 607
- Apr 08, 2019
- Hits: 10449
Fire safe design is important for industrial valves in industries like oil and gas, chemical, and petrochemical. We often use API 6FA, and API 607 for fire testing. What are the differences between...
What is a diaphragm valve?
- Apr 04, 2019
- Hits: 188
A diaphragm valve is different in structure from the general valves. It is a new type of valve and a special type of shut-off valve widely used in various fields. Its opening and closing member is...
Sealant Injection System of Ball Valves
- Apr 01, 2019
- Hits: 2190
Sealant injection fittings of ball valve are installed at the stem and seat area. They can act as temporary sealing. When the soft sealing is damaged and a leakage happens because of...
What is a Plug Valve?
- Mar 28, 2019
- Hits: 61
The plug valve is a closing or plunger-shaped rotary valve, which opens or closes by rotating 90 degrees contributing the passage on the plug to be the same or separate from the passage...
Fire Safe Design for Ball Valves
- Mar 25, 2019
- Hits: 1231
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: 280
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: 3021
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...