The technical characteristics of the welded ball valve are as follows: 1. The valve body structure is integrally welded, and there will be no external leakage. 2. The valve seat is composed of PTFE sealing ring and spring, and has strong adaptability to pressure and temperature changes, and will not cause any leakage within the scope of use.…

The safety valve is one of the three indispensable safety accessories on the boiler. It plays an important role in the control of the internal pressure limit of the boiler and the safety protection of the boiler. When the pressure in the boiler rises above the specified value, the safety valve is automatically opened to relieve the pressure and discharge steam…

The safety valve often has the problem of internal leakage during take-off, how to solve it?…

Its plug can be cylindrical or conical. In cylindrical plugs, the channels are generally rectangular, while in tapered plugs, the channels are trapezoidal. These shapes make the structure of the plug valve lighter. It is suitable as a cut-off medium and a replenishment medium, and is also suitable for shunting, but sometimes it can be used for throttling according to the nature of the application …

When installing the plug valve, in order to prevent damage to the plug valve and ensure the full performance of the plug valve…

The advantage of plug valve application is that the valve body installed on the top of the whole is equivalent to the ball valve installed on the top of the whole. Compared with two-piece or three-piece ball valve, it is a completely different type and application product.…

The plug valve is mainly used for cutting off, upgrading and changing the flow direction of the medium in the pipeline. It is easy to adapt to a multi-channel structure, so that one valve can obtain two, three, or even four different flow channels, which can simplify the design of the piping system, reduce the amount of valve gates and some connection accessories required in the equipment.…

Tight-sleeve plug valve The tight-sleeved plug valve is usually used in low-pressure straight-through pipelines. The sealing performance depends entirely on the fit between the plug and the plug body. Compress the sealing surface by tightening the lower nut. Generally used for PN≤0.6MPa.…