| DN | 50-600 |
| PN | 10-64 |
| Valve Body | Cast Iron GG25 |
| Stem | Carbon Steel |
| Disc | Ductile Iron or Stainless Steel |
The opening and closing parts (ball) are driven by the stem and rotate around the axis of the
valve called the ball valve. Can also be used for fluid regulation and control. Ball valve has the advantages of simple structure, quick switching, easy operation, small size, light weight, fewer parts, minimum fluid resistance, good sealing.
Ball valve inside is a ball with a hole, the surface is very smooth, there are seals on both sides, and the ball contact part of the arc surface, through the valve body on the bolt or presser pressing the sealing effect, the top of the ball open a straight slot, used to transfer the torque of the handle. When the valve is opened, the hole on the ball is parallel to the axis line of the valve, forming a channel; When the valve is closed, rotate the ball 90° through the handle to block the channel.
Goldensea is a valve manufacturer and supplier which was established in the year 1991.The main products are butterfly valves,gate valves,check valves, ball valves, globe valves,strainer and so on.
Each valve shall be subject to pressure test before delivery. Unqualified valves shall not be sold.16 kg shell pressure test, pressure test pressure 24 kg; Maintain the pressure for 2 minutes; Sealing pressure test: test pressure 17.6 kg; Hold the pressure for 2 minutes
Q1:Can you buy a samples placing orders?