It is directly connected to the pipeline (or equipment) to provide the channel of the medium circulation
Bonnet
Open-close part
A part used to opening and closing the flow of media Ex. the gate plate in the gate valve, the flap in the throttle valve
Disc
Opening and closing parts in valves for swing check valves,butterfly valve or globe valve.
Bodyseat ring
Install inside the valve body,it is sealing for the opening and closing parts.
Sealing face
There are tightly attached to the valve seat (valve body) for sealing purpose of both side of the valve body.
Stem
The main part to control opening and closing of the valve.
Yoke bushing
Fasten the valve stem and handle moving together.
Stuffing box
At the upper part of valve cap (or valve body) , to prevent the medium leaking out of from the valve stem.
Stuffing box
It is fill along with the stem packing for prevent the medium leaking out from the valve stem.
Gland
Used to fix the stem packing to reach the sealed parts.
Packing
Packed into the middle part of stuffing case(or stuffing box),to block the medium leaking from the valve stem.
Packing seat
Support the stem packing and keep the stem packing sealed.
Yoke
On the valve cap or valve body, it is used to support the stem nut and other moving system.
Impact handwheel