The stainless steel ball valve mainly relies on the rotating valve core to make the valve block or unblock. The sealing surface and the spherical surface are generally closed, which is not easy to be eroded by the medium. It has the characteristics of small size, light switch, simple structure, and reliable sealing.
The use of the stainless steel ball valve only needs to be rotated 90°, and it can be closed tightly with a small rotational torque. Let’s talk about the restrictions on temperature and pressure of stainless steel ball valves in use.
The nameplate shows the maximum operating pressure allowed by the ball valve at the maximum and minimum operating temperature.
For valve seats and seals made of PTFE or RTFE, the operating temperature should be between -290-2000°C. The operating temperature of other types of valve seats and seals should be inspected by KI factory.
The nominal pressure rating (PN) of the stainless steel ball valve can indicate the maximum working pressure of the valve under normal temperature conditions.
(such as PN4.0, indicating that the maximum working pressure is 40 Bar (4.0MPa) when the operating temperature is -290-380°C)