ZMS Valve flange with manual transmission ZMS

Plant developed a series of slide gate valves for working pressure 14 MPa, 21 MPa, 35 MPa, 70 MPa with conditional passages 50 mm, 65 mm, 80 mm, 100 mm, 150 mm different versions depending on the composition of the borehole environment: - K1 (medium with content Sodo 6% by volume), - K2 (environment the content of H2S and CO2 to 6% each), K3 (environment the content of H2S and CO2 up to 25% each). O the surface of the gate and seat wear-resistant weld and corrosion-resistant alloy plasma-powder method providing prolonged operation under conditions of Western Siberia. The device preload mechanism seal provides high maintainability of the gate and seat. External tightness the valve is provided by a seal cover type metal - metal and reliable polymer seal stem, which is confirmed by tests each valve in the scope of the requirements of API 6A. Design non-rising stem allows you to replace the seals on the stem under pressure, so that is, without removal of the valve from the x-Mas tree. Bearing unit significantly reduces the torque of the flywheel. Gate valves are equipped a visual guide to uniquely determine the position of the gate during operation. Through a system of injection valves of cleaning, draining and filling of the grease cavity of the valve. The valve housing, made by the method of precision casting on models, has a minimum mass. These design features the valve substantially increase performance and make maintenance convenient and comfortable. Mounting dimensions flanges of valves for operating pressures of 21 and 35 MPa - standardized and interchangeable. The plant produces models of valves, meets the requirements of API 6A standard quality levels PSL 1, PSL 2, PSL 3 and for classes of temperatures (-60...+82°C) and L (-46...+82°C).