Introduction to the classification of self-sealing forged steel valves
Today, let’s take a look at the classification of self-sealing forged steel valves.
Forged steel valves can be classified into forged steel check valves, forged steel gate valves, forged steel ball valves, forged steel globe valves, forged steel check valves, self-sealing gate valves, self-sealing globe valves, self-sealing check valves, forged steel needles. Valve, forged steel insulation valve, forged steel bellows valve, etc.
Forged steel gate valves often ignore pressure problems. In the grease injection operation, the grease-loaded regular semi-free float-type steam trap has a peak-to-valley change. The pressure is too low, the seal leaks or the safety valve fails, the pressure is too high, the grease port valve manufacturer is clogged, the seal grease hardens or the seal ring and the valve ball and the valve plate are locked. Usually, when the grease pressure is too low, the injected grease flows into the bottom of the valve cavity, which usually occurs in a small gate valve. The pressure of the grease flow control valve is too high. On the one hand, the grease valve is inspected and the grease nozzle is inspected. If the grease remote control float valve hole is blocked, the spring seal is replaced with a wrench. The other plunger valve is a lipid. For hardening, use a cleaning solution, repeatedly soften the failed sealing grease, and inject a new grease to replace it. In addition, the sealing type and sealing material also affect the grease filling pressure. Different sealing forms have different grease filling pressures. Generally, the hard sealing grease pressure is higher than the soft sealing.
Forged steel globe valves pay attention to the problem of the valve in the switch position. The ball valve is normally in the open position during maintenance and maintenance. In special cases, the maintenance is turned off. Other valves cannot be discussed in terms of opening. Forged steel shut-off valves must be closed during maintenance to ensure that the grease fills the seal groove along the seal. If it is open, the seal grease will fall directly into the runner or valve cavity, resulting in waste. When the valve is greased, the problem of grease injection is often ignored. The pressure, grease injection amount and switch position are normal during the grease filling operation. However, in order to ensure the grease filling effect of the valve, it is sometimes necessary to open or close the valve to check the lubrication effect and confirm that the valve ball or the surface of the valve is evenly lubricated.
I believe that through the above introduction, everyone has already understood the classification of self-sealing forged steel valves.