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A 4-inch water gate valve or a sluice valve is a device used in plumbing to control the movement of liquid or water along a pipeline. The 4-inch gate valve handle lifts or closes the built-in gate to regulate the path of the flowing liquid.

Components of a 4-inch gate valve

The standard 4-inch water gate valve is made of materials such as cast iron, cast carbon steel, stainless steel, alloy and forged steel. Commonly used are the 4-inch PVC gate valve made of polyvinyl chloride (PVC) plastic and the 4-inch brass gate valve. The components of the brass or steel gate valve consist of the valve body, seat and disc, a spindle, gland, and handwheel. It is the seat ring and the gate working together that performs the 4-inch gate valve lever action of shutting off the flow of fluid. The PVC gate valve can be divided into two main types: Parallel and wedge-shaped. It is simpler as it is made of three main components: the handwheel, the housing, and the gate.

Types of 4-inch gate valve

A 4-inch knife gate valve is useful for tube networks that deal with hard-to-clean material flowing through, such as slurry, wastewater or food items. The 4-inch knife valve utilizes a blade as its gate to cut through clogged material. In contrast, a 4-inch flanged gate valve differs in appearance because its housing has these protruded rims that connect to another tube that also has flanges with bolts. These flanges serve to increase the strength of the connecting tubes and valve. The 4-inch OS&Y valve is another valve type with an external screw and yoke to operate its gate. OS&Y stands for "outside screw and yoke". For industrial, agricultural and commercial applications, 4-inch gate valve manufacturers also produce models designed for quick shutoffs in low-pressure or vacuum lines.