Zhejiang Yongjia County Lin Wanle county magistrate visit ST valve
ST Trunnion Mounted ball valve is divided into cast steel ball valve and forged steel ball valve;
The valve body is divided to fix the ball valve, the ball is installed on the side, and the middle flange and neck are bolted.
It is mainly two-piece and three-piece, suitable for general industrial pipelines and long transport pipelines, and can also be used for various corrosive and non-corrosive media.
Users can choose full size or reduced size structure according to their needs;
According to customer's requirement, end connection for flange connection and welding connection;
Also can be provided according to the customer's use of the stem extension buried type all-welded ball valve.
Structural Features:
1、Body of high quality material, ball side mounted, middle flange and neck bolted
2、There are two types of seal between the seat and ball: traditional soft seal and hard seal
3、Valve seat piston effect :(1) both upstream and downstream are single piston seats;(2) Both upstream and downstream are double pistons;(3) Upstream is a single piston, downstream is a double piston
4、Have fire prevention, anti - static device
5、Supporting a variety of driving device connection plate.The driving device includes handle, worm wheel, electric, pneumatic, gas-liquid linkage, electro-hydraulic linkage and so on
6、Easy to adjust the position.ST ball valves provide a "positioning slot" for easy and accurate locating of full open and closed ball valves when replacing or installing actuators online.
8、For buried valves, the stem may be extended as engineering requires for above-ground operation.
Design Specification:
Design criteria: API 6D GB/T 19672 GB/T 12237
Structure length: API 6D ASME B16.10 GB/T 12221
Wall Thickness:ASME B16.34、ISO 17292、BS 5351、GB/T 12224
Flange connection standard: ASME B16.5 ASME 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:WCB(A105)、LCB(LF2)、LCC(LF2)、CF8(F304)、CF8M(F316)、CF3(F304L)、CF3M(F316L)、4A(F51)、5A(F53)、6A(F55)..
Seat material:PTFE、RPTFE、PEEK、NYLON、DEVLON、PPL
Metal seat material:STL、WC、NITRIDING、NI55
Nominal size: NPS 1 "~60" DN25~DN1500
Pressure range: Class 150~2500 PN10~PN420
Operating temperature: -196℃~+800℃