1. Installation steps of three-way threaded ball valve

1). Remove the protective caps on both sides of the three-way threaded ball valve, and rinse and clean when the valve is fully opened.

2). Before installation, the whole machine should be tested according to the specified signal (electric or pneumatic) (to prevent vibration from affecting the performance due to transportation), and the qualified rear line installation (wiring according to the electric actuator circuit diagram).

3). Before preparing to connect with the pipeline, flush and remove the remaining impurities in the pipeline (these substances may damage the valve seat and ball).

4). During the installation of the three-way threaded ball valve, please do not use the actuator part of the valve as a lifting point to avoid damage to the actuator and accessories.

5). The three-way threaded ball valve should be installed in the horizontal or vertical direction of the pipeline.

6). The pipeline at the installation point must not sag or bear external forces. Pipe supports or supports can be used to eliminate the deviation of the pipeline.

7). After the three-way threaded ball valve is connected to the pipeline, please cross-lock the connecting bolts with the specified torque.

Two, three-way threaded ball valve buying guide

When selecting a valve, the function, size, fluid temperature and pressure of the valve should be considered.

1). The function of the valve. First consider whether the valve is used to cut off or need to adjust the flow and pressure of the fluid. If it is only used for cutting off, then need to consider whether there is a requirement for fast opening and closing; just to cut off the fluid, you can choose gate valves, globe valves, ball valves, butterfly valves, etc. Valves; electric or pneumatic control valves can be selected to adjust flow, and pressure reducing valves can be selected to adjust pressure.

2). The size of the valve. Determine the size of the valve according to the flow rate of the fluid and the allowable pressure loss. Generally, it should be consistent with the size of the process pipeline. Pressure loss A considerable part of the pressure loss in the pipeline is caused by valves. Some valve structures have high resistance, while others have low resistance.

3). The temperature and pressure of the fluid. The material and pressure rating of the valve should be determined according to the working temperature and pressure of the valve. For valves transporting chemically corrosive media, stainless steel, Monel alloy and other materials should be used according to the nature of the media, and anti-corrosion material linings can also be used.

4). Points to note during valve acceptance. The first is to check the appearance quality and geometric dimensions, mainly on the valve body wall thickness, structural length, flange connection surface size, runner size, etc.; the second is to check the valve product certificate and quality certificate, and verify the valve body furnace number and product number Whether it is consistent with the actual product; the third is to check whether the valve opens and closes flexibly, and whether it is stuck.

The three-way threaded ball valve is widely used in the construction of various conveying fluid pipelines, which is a huge help for the work of conveying fluid. For those in need, skilled installation of three-way threaded ball valves is a good help.

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