What are the characteristics of the globe valve?
Release time:
2022-01-18
The structure of the globe valve is simpler than that of the gate valve, and it is more convenient to manufacture and maintain. The sealing surface is not easy to wear and scratch, and the sealing performance is good. There is no relative sliding between the disc and the sealing surface of the valve body when opening and closing, so the wear and scratch are not serious, the sealing performance is good, and the service life is long.
Globe valve, also called cut-off valve, is a widely used valve. Due to its own performance, it is not only suitable for medium and low pressure, but also suitable for high pressure.
The structure of the globe valve is simpler than that of the gate valve, and it is more convenient to manufacture and maintain. The sealing surface is not easy to wear and scratch, and the sealing performance is good. There is no relative sliding between the disc and the sealing surface of the valve body when opening and closing, so the wear and scratch are not serious, the sealing performance is good, and the service life is long.
When opening and closing, the stroke of the disc is small, so the height of the stop valve is smaller than that of the gate valve, but the structural length is longer than that of the gate valve. The opening and closing torque is large, the opening and closing is laborious, and the opening and closing time is long. The fluid resistance is large, because the medium channel in the valve body is tortuous, the fluid resistance is large, and the power consumption is large.
When the nominal pressure of the medium flow direction is PN≤16MPa, it generally adopts forward flow, and the medium flows upward from the bottom of the valve disc; when the nominal pressure PN≥20MPa, generally adopts reverse flow, and the medium flows downward from the top of the valve disc. To increase the performance of the seal. When in use, the globe valve medium can only flow in one direction, and the flow direction cannot be changed.
The disc is often eroded when fully open. The stem axis of the globe valve is perpendicular to the sealing surface of the valve seat. The opening or closing stroke of the valve stem is relatively short, and it has a very reliable cut-off action, making this valve suitable for cutting or regulating and throttling the medium.
Related news
Contact
Add：No. 877, Jinliu Road, Jinshan Industrial Zone, Shanghai
Sales Hotline：021-67276600、67276670
Administrative Hotline：021-67276672
Fax：021-67276611
E-mail：sell@amaode.com
Mobile terminal
Copyright © 2022 Shanghai Goflow Moyer Fluid Tech Co., Ltd.