BS5163 Rising Stem Resilient Seated Gate Valve

Rising-stem cast iron gate valve is a valve that opens and closes by raising and lowering the valve stem. The valve stem nut is located on the valve cover or bracket. When the nut is rotated, the valve stem moves up and down. The gate is perpendicular to the direction of the fluid and can only be fully opened or fully closed. The flow rate cannot be adjusted.Its core structure includes:Rising stem design: the valve stem is exposed, the opening and closing status is intuitively visible, and it is easy to maintain and lubricate.Sealing form: mostly wedge-type gates, using the principle of self-sealing or forced sealing, the sealing surface material is often brass, stainless steel or hard alloy, with long service life and reliable sealing.Material: The valve body and main components are made of ductile iron), which is 20%-30% lighter than traditional gate valves, and has both strength and corrosion resistance.

·Low flow resistance: Straight-through valve body structure, the medium flows in a straight line, the flow resistance is small, and it is suitable for large flow scenarios1 4.

·Effortless opening and closing: The movement direction of the gate is perpendicular to the flow direction of the medium, and the operating torque is small, which is especially suitable for high pressure difference environment1 4.

·Bidirectional sealing: The medium can flow in both directions, and the installation direction is not restricted2 7.

·Anti-water hammer: The slow closing feature reduces water hammer phenomenon and protects the pipeline system1 3.

·Wide applicability: Suitable for water, steam, oil and gas with a temperature of ≤200℃, and a nominal pressure range of 1.0-1.6MPa