Frequently Asked Questions
What is cracking pressure?
The pressure at which the relief valve first opens to allow fluid flow through the valve is called cracking pressure.
What is a bonnet?
The bonnet is a part of the valve pressure-retaining boundary that contains the packing box and stem seal. The bonnet can be integral to the valve body or bolted or screwed. With the help of the bonnet, an actuator is connected to the valve body.
What is a control valve?
It is a power-operated device used to modify the fluid flow rate in the process control system. It consists of a valve and an actuator, which responds to the control system's signal and changes the position of a flow-controlling element in the valve.