Firstly, it is necessary to clarify the basic structure of the open stem soft seal gate valve. It should be introduced separately, such as valve body, valve cover, gate, valve stem, etc. The key to soft sealing lies in the coating material of the gate, such as EPDM or NBR. The advantage of these materials is good sealing performance, but attention should be paid to temperature limitations.

Then in the working principle section, we need to explain how the lifting of the valve stem drives the gate, as well as the fully open and fully closed state. The design of the pole makes the switch status clear at a glance, which is important for maintenance.
Next is the core advantage. Zero leakage and low torque are key points, and soft seals are more effective than metal seals, but users should be reminded to pay attention to temperature limitations. The maintenance free feature is also very attractive, but it needs to be explained under ideal working conditions. In addition, corrosion resistance and long lifespan are also concerns for users.

In terms of application scenarios, common areas such as water treatment and building water supply and drainage should be mentioned, especially in avoiding high pressure differentials, which users may easily overlook and need to emphasize. Also pay attention to impurities and temperature range in the medium, which can easily cause problems in practical use.