Carbon steel casting flange ball valve

Ball valve structure features

1. The fluid resistance is small, and the ball valve is the one with the smallest fluid resistance in all valves. Even if it is a reduced diameter ball valve, the fluid resistance is also very small. 2. The thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate steadily and flexibly for a long time. 3, the valve seat sealing performance is good, using PTFE and other elastic materials made of seals, the structure is easy to seal, and the ball valve sealing ability increases with the increase of medium pressure. 4. The valve stem seal is reliable, because the valve stem is only used for imitating rotation without lifting movement, the filling seal of the valve stem is not easy to damage, and the sealing capacity increases as the pressure of the medium increases. 5, due to PTFE and other materials have a good self-lubricity, and ball valve friction loss is small, so the ball valve has a long service life. 6. The convex stem of the bottom-mounted stem and the stem head prevents the valve stem from being sprayed. If the fire causes the stem seal to fail, a metallic contact can also be formed between the convex step and the valve body to ensure the stem seal. 7. Anti-static function: Set the spring between the ball, valve stem and valve body to export the static electricity generated during the switch process.

The ball valve actuator adopts a new series of GT pneumatic actuators, with double action and single action (spring return), rack and pinion drive, safe and reliable; large diameter valve adopts series AW pneumatic actuator fork transmission, reasonable structure , Output torque, double-acting and single-acting. 1. Gear type double piston, large output torque, small size. 2, the use of aluminum alloy cylinder material, light weight, beautiful appearance. 3. Manual operation mechanism can be installed at the top and bottom. 4, rack-type connection can adjust the opening angle, rated flow. 5. Actuators can provide feedback indications and various accessories for automatic operation. 6. IS05211 standard connection provides convenience for installation and replacement of products. 7. The two-point adjusting screw allows the standard product to have an adjustable range of ±4° at 0° and 90°. Ensure synchronization accuracy with the valve.

Attachment options

The following accessories can be selected according to different controls and requirements: Cut-off accessories: electric ball valve, double solenoid valve, limit switch receiver. Adjustable accessories: electrical locators, pneumatic locators, electrical converters. Air source processing accessories: air filter pressure reducing valve, air source processing triple parts. Manual mechanism: HVSD manual operation mechanism