ST double ball valve is designed to replace the traditional pipeline in the complex form of multiple valves connected in series.
This product reduces the leakage point in the system, realizes the fast efficiency discharge, and saves the installation space greatly, simplifies the installation procedure;
It reduces the cost of pipeline system, facilitates the instrument cleaning and maintenance, and improves the cost performance of pipeline system.
Its strength, safety and environmental resistance are specially considered in the design.
Choose different materials, suitable for a variety of corrosive and non-corrosive media;
Application: petroleum, natural gas, chemical industry, metallurgy, electric power, water conservancy, long - distance pipeline, etc.
Structural Features:
1、Double blocking,safe and reliable
2、Reduce leakage points and save installation space
3、Reduce the cost of the pipeline system,facilitate cleaning and miantenance,and improve the cost performance
4、Easy operation and simple structure
5、Quadruple sealing improve the sealing performance and makes the sealing stable and reliable
6、All features of a single ball valve
Design Specification:
Design criteria:API 6D、GB/T 19672、GB/T 12237
Structure length:API 6D、ASME B16.10、GB/T 12221
Flange connection standard:ASME B16.5、SAME B16.47、GB/T 9113、JB/T 79、HG/T 20592
For welding connection standard:ASME B16.25、GB/T 12234
Fire protection requirements:API 6FA、API 607
Pressure test:API 6D、API 598、GB/T 13927、GB/T 26480
Performance parameters:
Body material:carbon steel 、forged steel、duplex steel、aluminum bronze,etc
Norminal size:NPS 1/2"~NPS 6" DN15~DN200
Pressure range:Class 150~Class 600 PN10~PN100
Operation temperature:-29℃~+200℃
Application:petroleum、chemical industry、metallurgy、light industry、power station、urbon construction water supply、low temperature working conditions and oil、gas、etc
