Welding Ball Valve for Fluid Pipelines

Product Overview:  

Pipeline ball valve adopts advanced forged steel star valve body and longitudinal single weld all-welded main body structure, PMSS seat effectively ensures the sealing performance of the valve, which is widely used in natural gas long-distance transmission pipelines, urban ring networks, pressure regulating stations and oil delivery and distribution systems and other important places.  

Product features:  

1. Fire prevention structure design:  

According to the API607/BS6755 specification, in the event of a fire in the field of valve use, the sealing ring made of non-metallic secondary seal material will decompose or be destroyed at high temperature, and the primary metal seal can quickly seal the ball.  Unique two-stage sealing seat structure design ensures the reliability of valve seat fire.  

2. Anti-static design:  

Using spring and ball electrostatic extraction device, through the valve stem to form an electrostatic channel between the ball and the valve body, so that the ball and the sealing ring switch process friction generated by the static electricity through the valve body to the earth, to prevent electrostatic spark may cause fire or explosion and other dangers.  

3. Sealed emergency rescue and valve lubrication:  

When the valve seat and stem seals are damaged and leaked, the sealing grease injected into the grease valve can be used to achieve instant sealing.  Under the normal working condition of the valve, grease can be injected into the valve to lubricate the stem and the sphere, making the valve open and close more flexible and convenient.  

4. Valve seat structure design:  

A. Single piston seats upstream and downstream:  

With double stop/double discharge function, can cut off the medium from the upper and lower reaches at the same time;  With automatic pressure relief function: valve valve chamber stranded medium due to temperature rise, abnormal pressure boost, valve seat can be automatic pressure relief (low pressure discharge).  

B. Dual piston seats for ups