When choosing a ball valve, it is worth paying attention to the following parameters:

• Shape: there are straight and angular ball valves. Both types perform the function of blocking the flow, but in a system where it is necessary to change the direction of the working medium, a corner crane is used.
• Type of device: depending on the operating conditions, two-way and three-way cranes are distinguished. The three-way crane allows mixing or separating the flows of the working medium.
• Control type: household systems are equipped with a ball valve with a lever, or a butterfly handle, for example, a ball valve ½. In water and heating systems, a crane with a lever is used, and for large diameters, a reducer comes to the rescue. In the pipeline system, where automatic control and control are required, an electric or pneumatic driven crane is used.
• Valve Material: Ball valve body can be made of brass, cast iron, carbon steel or stainless steel. Depending on the permeable medium and operating conditions, each of the listed materials has a number of advantages that determine high operational qualities. For metal pipes, a brass water tap is used, for example, 11b27p1, or a tap made of steel, here one of the most common models is a stainless steel ball valve VD - RP. They are not subject to corrosion, withstand high temperature changes in the working environment and have a long service life. For plastic pipes, a polypropylene crane is used, which is mounted into the system by soldering.
• Connection method: ball valves are mounted into the pipeline in several ways, such as a coupling connection is an internal thread or an external thread, for example, a valve with an American, a welded connection (soldering) or a flange connection. Any of the listed types of ball valve connection provides a long-lasting hermetic connection. Depending on the operating conditions, collapsible connections (flanged or threaded) allow you to achieve maximum maintainability of the system, and the welded connection reduces operating costs and installation costs.

Due to the simplicity of the design, the shut-off valve has minimal hydraulic resistance, which means it is durable. The outer part can withstand large static and dynamic loads, which indicates a high degree of wear resistance. It can be used in a wide temperature range (from -58 to +392 ° F), the nominal pressure depends on the valve size and varies from 290 to 986 psi. If the installation rules are followed, the cranes serve for a very long time!