Classification
The ball valves is divided into floating ball valve and trunnion ball valve according to the ball support in the bottom trunnion or seat.
The ball valves is divided into metal seal ball valve and soft seal ball valve according to the surface of sealing material.
The ball valves is divided into top entry, side entry and full welded body type according to the body structure.
The ball valves is divided into 1 pc, 2pcs, 3pcs body in side entry ball valve
Usage and feature
Usage
Series floating ball valve and trunnion type ball valve are used in oilfield, chemical-industrial, power-station for cutting and connecting the pipe.
Nominal
pressure
|
Strength testing pressure
|
High-pressure
Sealing testing
Pressure
|
Low-pressure
Sealing testing
Pressure
|
Temperature
Range
|
Applicable medium
|
150Lb
|
3.0Mpa
|
2.2MPa
|
0.6MPa
|
≤180°C
|
Water ,oil, Gas
|
300Lb
|
7.5Mpa
|
5.5Mpa
|
600Lb
|
15.0Mpa
|
11.0Mpa
|
900Lb
|
22Mpa
|
17.6Mpa
|
1500Lb
|
37.5Mpa
|
27.5 Mpa
|
Working theory and configuration direction
1. Series gate valve are designed and made under standard API 6D tested under standard API598.
2. Handle moving clockwise by 90 will close the pore of ball is vertical of the pipe and cut it. As anti-clock will connect the pipe. Continue reading “Ball Valves Installation, Operation And Maintenance Manual”