Electric Industrial Metal Valves

Electric Titanium Alloy Clip Type Electric Ball Valve And Flange Type Electric Ball Valve

1. Description

The electric titanium alloy ball valve has the advantages of simple structure, small size, light weight, small installation size and small driving torque, The pressure regulating valve is easy to operate and quick to open and close with only 90 ° rotation. It also has good flow regulation effect and sealing characteristics.

In the application of large and medium caliber and medium and low pressure, electric ball valve is the dominant valve drive. When the electric ball valve is fully opened, the thickness of butterfly plate is the resistance of medium flowing through the valve body, so the pressure drop through the valve is very small, so it has good flow control characteristics.

The electric ball valve has two seal types: elastic seal and metal seal. Elastic sealing valve, sealing ring can be inlaid on the valve body or attached to the periphery of butterfly plate. The valve with metal seal has longer service life than the valve with elastic seal, but it is difficult to achieve complete seal. Metal seal can adapt to higher working temperature, while elastic seal has the disadvantage of temperature limitation. If the use of electric ball valve as flow control, it is important to accurately select the size and type of valve. The construction principle of electric ball valve is especially suitable for manufacturing large diameter valve. Electric ball valve is not only widely used in oil, gas, chemical industry, water treatment and other general industries, but also used in cooling water system of thermal power station.

There are two kinds of electric ball valve commonly used: clamp type electric ball valve and flange type electric ball valve. Clamp type electric ball valve is to connect the valve between the two pipe flanges with stud bolts. The flange type electric ball valve has flange on the valve, and the flange on both ends of the valve is connected to the pipe flange with bolts. The strength performance of valve refers to the ability of valve to bear medium pressure. The valve is a mechanical product under internal pressure, so it must have enough strength and stiffness to ensure long-term use without cracking or deformation.

2. Purpose

In addition to industrial pure titanium parts, titanium alloy is widely used. As a component of gas turbine, it has been widely used in aviation, aerospace, chemical industry, shipbuilding and other industrial sectors.

3. Executive standard

The national standard GB / T 2965-1996gjb 1538-1994gjb 2218-1994gjb 2058-1994gjb 493-1988gjb 2219-1994gjb 494-1988gjb 495-1988 and other national and enterprise standards shall be implemented.

4. Pressure test

5. Characteristic

1) It is more corrosion resistant than pure titanium ball valve.

2) No flow resistance and high efficiency.

3) 90 ° rotary opening and closing. Fast and safe.

4) Optional electric or pneumatic control switch.

6. Precautions for installation and use

1) When installing the valve, the construction must be careful and the valve should not be impacted.

2) Before installation, check the ball valve, check the specification and model, and identify whether there is any damage. Especially for the valve rod, rotate it several times to see whether it is skewed, because the valve rod is most likely to be bumped during transportation. Also remove the debris in the valve.

3) When lifting the ball valve, the rope should not be tied to the hand wheel or the valve stem to avoid damage to these parts, but should be tied to the valve body.

4) The pipeline connected to the ball valve must be cleaned. Compressed air can be used to blow away iron oxide chips, mud and sand, welding slag and other impurities. These debris, not only easy to scratch the sealing surface of the ball valve, in which large particles of debris (such as welding slag), but also block the small valve, so that the valve can fail.

5) The position of valve handle rotation should be reserved during installation.

6) The ball valve cannot be used as throttling.

7) The ball valve with transmission mechanism shall be installed vertically.

7. More picture