Stainless steel American standard fixed ball valve

1. Product specifications of Shanghai Mingjing Anti-corrosion Valve Manufacturing Co., Ltd. Stainless steel American standard fixed ball valve
Shangming brand stainless steel American standard fixed ball valve is used in the mining, refining, processing and pipeline transportation systems of oil, natural gas, coal and ore in chemical products , medicine and food production are widely used in the power production systems of hydropower, thermal power and nuclear power, in the water supply and drainage, heating and gas supply systems of urban and industrial enterprises, in the drainage and irrigation systems of farmland, and in the metallurgical production system. , is an important mechanical product closely related to production and construction, national defense construction and people's lives. Ball valves are used in various pipeline systems to cut off or connect the flow of media, so that the media can be transported to various designated points according to predetermined procedures.

Product Structural Features

The manual part can use a steel plate pressed handle or a stainless steel cast handle. The handle is equipped with a limit structure, which sets the limit at the open and closed positions of the valve. When the valve is used on a key device, the limit block is provided with a lock hole to lock the switch position to avoid misoperation. There are obvious on and off marks on the handle.
The valve stem is made of stainless steel and is integrally forged and modulated, with a hardness of ~. The valve stem is connected to the handle through a flat key, spline or square key, which is highly versatile and easy to disassemble and assemble. The valve stem is equipped with an anti-blowout structure.
. The packing of the valve should be braided, flexible graphite sealing ring or tetrafluoroene sealing ring, so that the valve stem can achieve reliable sealing under certain lubrication conditions.
. According to needs, the ball valve can be designed with an anti-static structure, and a conductive spring is set between the ball and the valve stem, the valve stem and the valve body to prevent static electricity from igniting flammable substances and ensure system safety.
There are various forms of sealing pairs. According to different working conditions, soft seals, hard seals, fire valve seats and other structures can be selected. The following structures are floating ball type, and the following are fixed ball type.
. An auxiliary sealing structure can be installed at the ball valve seat, and a grease valve can be installed at the valve seat and valve stem. It can be temporarily sealed in an emergency, and the valve stem can be lengthened as needed to suit the buried laying location.