Gear Operated Gate Valve By Marck Engineers

We are counted among the most distinguished organizations engaged in manufacturing, supplying and trading of Gear Operated Gate Valve in Surat, Gujarat, India. Gate valves are characterised as having either a rising or a nonrising stem. Nonrising stems are used underground or where vertical space is limited. Bonnets provide leakproof closure for the valve body. Rising stems provide a visual indication of valve position because the stem is attached to the gate such that the gate and stem rise and lower together as the valve is operated. Nonrising stem valves may have a pointer threaded onto the upper end of the stem to indicate valve position, since the gate travels up or down the stem on the threads without raising or lowering the stem.Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.