Adjustment before installing bellows globe valve
Release date:
2022-09-20
How much do you know about the installation of bellows globe valves? What are the key points for installing bellows globe valves? The stem travel of the bellows gate valve is relatively short and has a very reliable shut-off function. Due to the proportional relationship between the valve disc travel and the change in the valve seat, it is very suitable for flow regulation. Therefore, this type of valve is very suitable for shut-off, regulation, and throttling. Below, let's look at the adjustments before installing the bellows globe valve.
About Bellows Globe Valve How much do you know about its installation? Bellows Globe Valve What are the key points of installation? The stem travel of the bellows gate valve is relatively short and has a very reliable shut-off function. Due to the proportional relationship between the valve seat change and the valve disc travel, it is very suitable for flow regulation. Therefore, this type of valve is very suitable for shut-off, regulation, and throttling. Next, let's look at the pre-installation adjustment of the bellows globe valve.
How much do you know about the adjustment of the bellows globe valve? How to adjust the bellows globe valve before use? When companies purchase globe valves, they cannot use them directly but need to adjust them according to actual working conditions to ensure that the bellows globe valve meets the pipeline requirements. So how should we adjust it correctly?
Bellows Globe Valve Before leaving the factory, the opening pressure should be adjusted one by one to the set value required by the user. If the user specifies the spring working pressure level, it should generally be adjusted according to the lower limit of the pressure level. Before installation or installing the bellows globe valve on protective equipment, the user needs to readjust it on-site Bellows Globe Valve to ensure that the set pressure of the bellows globe valve meets the requirements.
Within the spring working pressure level range indicated on the nameplate, the opening pressure can be adjusted by turning the adjustment screw to change the spring compression. Before turning the adjustment screw, the valve inlet pressure should be reduced to below 90% of the opening pressure to prevent the valve disc from rotating and damaging the sealing surface. Traditional globe valves are used to fix additional back pressure. When checking and adjusting the opening pressure (back pressure is atmospheric pressure), the set value is the required opening pressure minus the additional back pressure.
Bellows Globe Valve What is the installation process? Among the large family of valves, globe valves are outstanding in performance and widely used in many places. The bellows globe valve is a type of diaphragm valve, so it can isolate external dirty gases. This valve features frictionless operation, high sealing performance, and is not easily worn. Equipped with related devices, it can create a completely sealed sterile production environment.
The bellows globe valve allows production machines to operate in a sterile environment, thereby producing high-quality products. Additionally, it has a compact and beautiful appearance, and the valve stem's exterior
has been treated to have good corrosion resistance, effectively preventing corrosion of gas components. Therefore, during use, the distance between the bellows and the valve must be maintained to avoid excessive pressure on the bellows. Special attention should also be paid to the use of high-temperature resistant polymer materials before melting. Quality must be strictly ensured.
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