Found in 2008, We are professional industrial valves manufacturers on wellhead control.

24 hours at your service: admin@sgvalves.com

Safety valves are classified according to the ratio of the opening height of the valve disc and the flow passage

by:Sino Valves     2021-11-16

According to the ratio of the maximum opening height of the valve disc to the diameter of the flow passage of the safety valve, safety valves are mainly divided into two types: full-lift safety valves and micro-lift safety valves.

① Full-lift safety valve

The opening height of the full-lift safety valve is greater than or equal to 1/4 of the diameter of the flow channel. The discharge area of u200bu200bthe full lift safety valve is the smallest cross-sectional area of u200bu200bthe valve seat throat. The action process is a two-stage effect type, and it must be fully opened with the help of a lifting mechanism. The full-open safety valve is mainly used for gas medium occasions.

② Micro-lift safety valve

The opening height of the micro-lift safety valve is less than 1/4 of the diameter of the flow channel, generally 1/40 to 1/20 of the diameter of the flow channel . The action process is proportional effect type, mainly used in liquid occasions, and sometimes also used in gas occasions with small emissions.

Valve Industry Co., Ltd. is a manufacturer of high, medium and low pressure valves, integrating scientific research, design, production and sales through one-stop. Our factory has strong technical force, advanced production technology, perfect testing methods, strong production capacity, strict selection of materials, reliable product quality, timely delivery and a complete after-sales service system. The products are sold throughout the country and Southeast Asia. Our factory has more than 600 employees, 117 engineering and technical personnel, and 15 senior engineers. The number and quality of the scientific and technological talent team, the allocation structure and the efficiency of the development and utilization of scientific and technological talent resources determine the level of competitiveness of the enterprise.


Sino Global Pipeline Construction Equipment Limited helps high-profile clients build strategic relationships that drive company growth, investments, funding and more. There are many make-or-break details involved in the day-to-day manufacturing within our company.
The best for industrial valves china is one that works best for your needs and what you can support in your home. Among Sino Global Pipeline Construction Equipment Limited's diversified list of products at different price ranges, you will surely find your one with high quality. make your choice at Sino Global Industrial Valves!
So, what's a manufacturer to do? Familiarize ourselves with producing Contact Us in various technologies.
When selecting the best products for customers, we considered not only the Contact Us, but also the industrial valves china.
Sino Global Pipeline Construction Equipment Limited manufactures Contact Us with innovative facilities and professional operation.
Custom message
Chat Online
Chat Online
Chat Online inputting...