Intelligent electric stainless steel ball valve

Intelligent electric stainless steel ball valveIntroduction:

Stainless steel pneumatic ball valve is a ball valve equipped with a pneumatic actuator.

The execution speed of pneumatic actuators is relatively fast and does not require manual labor, which greatly saves human resources and time. Stainless steel pneumatic ball valve evolved from globe valve. It has the same 90 degree rotation lifting action, but the difference is that the plug body is a sphere with a circular through-hole or channel passing through its axis. The ratio of the sphere to the channel opening should be such that when the sphere rotates 90 degrees, it should all appear spherical at the inlet and outlet, thereby intercepting the flow. The working principle of stainless steel pneumatic ball valve is to rotate the valve to make the valve smooth or blocked. Pneumatic ball valve switches are lightweight, small in size, can be made into large diameters, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by the medium. They are widely used in various industries. The ball of a stainless steel ball valve is floating, and under the pressure of the medium, the ball can produce a certain displacement and be tightly pressed against the sealing surface at the outlet end.

Intelligent electric stainless steel ball valveTechnical Specifications:

Nominal pressure (MPa): PN1.6, 2.5, 4.0, 6.4 MPa; ANSI 150、300LB

Allowable pressure difference (MPa): ≤ nominal pressure

Valve body form: two-stage cast ball valve

Connection types: flange type, welded type, threaded type

Valve core form: 'O' - shaped spherical valve core

Sealing packing: V-shaped polytetrafluoroethylene packing, flexible graphite packing, etc

Flow characteristics: approximate fast opening type

Action range: 0-90 °

Leakage Q: According to GB/T4213-92, less than 0.01% of rated KV

Basic error: ± 1%

Return difference: ± 1%

Dead zone: ≤ 1% (adjustable)

Adjustable range: 250:1 350:1

Control mode: On/off position light (switch two position control), passive contact signal, 1/5K potentiometer, intelligent adjustment (4-20mA analog signal control)

Stainless steel intelligent electric ball valvePerformance characteristics:

1. Low fluid resistance, ball valve is one of the valves with the lowest fluid resistance among all valve types, even for reduced diameter ball valves, its fluid resistance is quite small. ,

2. The thrust bearing reduces the friction torque of the valve stem, allowing for long-term balanced and flexible operation of the valve stem.

3. The valve stem seal is reliable. As the valve stem only rotates and does not move up or down, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.

4. The bottom mounted valve stem and the protruding step at the head of the valve stem prevent the valve stem from spraying out. In the event of a fire causing damage to the valve stem seal, the protruding step can also form a metal contact with the valve body to ensure the valve stem seal.