Valve Parts and Fittings

16 U-type-flange-butterfly-vlave-body

Valve body (TH-VBD) Definition of valve body: The definition of “valve” is a device used to control the direction, pressure and flow of fluid in a fluid system. A valve is a device that allows the medium (liquid, gas, powder) in piping and equipment to flow or stop, and can control its flow rate.

17 center-line-butterfly-valve-plate-disc-parts-4

butterfly valve disc is installed in the diameter direction of the pipeline. Butterfly valve, also known as flap valve, is a kind of regulating valve with simple structure. In the cylindrical channel of the valve body of the butterfly valve, the disc-shaped butterfly plate rotates around the valve shaft to achieve opening and closing, and the rotation angle is between 0° and 90°. When it is rotated to 90°, the valve is fully open.

18 buttefly-valve-stem-shaft-parts-1

Valve stem shaft (TH-VST) The valve stem is an important part of the valve, which is used for transmission. It is connected to the actuator or the handle, and the valve core is directly moved or rotated below to achieve the valve switching or adjustment effect.

19 marine-valve-seat-rubber-sealing-valve-seat-parts-6

Valve seat sealing (TH-VSE) The valve seat is a detachable surface part in the valve, used to support the fully closed position of the valve plate, and constitutes a sealing pair. The general valve seat diameter is the maximum flow diameter of the valve. For example, the valve seat material of butterfly valve is very wide, all kinds of rubber, plastic, metal materials can be used as the seat material, for example: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE and so on.

20 bonnets-for-butterfly-valve-1

Valve bonnet bushing bolts nuts (TH-VBN) Valve accessories refer to the parts or components to which the valve is assembled; or the parts or components to be re-installed after being damaged. Valve fittings can be divided into two types: standard fittings and optional fittings. Standard fittings refer to the auxiliary parts provided at random. Optional fittings refer to the parts that can enhance product functions and improve product performance in addition to the standard configuration.

21 manual-actuator-lever-handwheel-worm-gear-box

Valve actuators /actuation (TH-VAT) Valve actuators are devices used to open and close valves. The manually operated valve requires someone to be on site, using a direct or gearbox connected to the valve stem for adjustment. Power-operated actuators, using pneumatic, hydraulic or electric power, can remotely adjust valves, or quickly operate large valves. Power-actuated valve actuators may be the final element of an automatic control circuit that automatically adjusts certain flows, levels, or other processes.