Carbon Steel Stainless Steel Non-Rising Stem Valve Non-Rising Stem Gate Valve

The on or off parts of non-rising stem gate valves are rams, whose movement direction is perpendicular to the direction of fluid. Gate valves can only be fully opened and closed, and cannot be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of Z-mode gate valve are wedge-shaped, and the wedge angle varies with the valve parameters, usually 50. The gate of wedge gate valve can be made into a whole, called rigid gate; It can also be made into a ram that can produce a small amount of deformation to improve its manufacturability and make up for the deviation of the sealing surface angle during processing. This ram is called an elastic ram.   Main materials of stainless steel hidden stem gate valve fittings: The main material of valve body: ductile iron, cast steel, stainless steel, mainly 316L, and indicate the brand and the actual physical and chemical test data of cast iron. Material of valve stem: stainless steel valve stem (2CR13), and large-diameter valve should also be stainless steel embedded valve stem. Nut material: cast aluminum brass or cast aluminum bronze, and the hardness and strength are greater than the valve stem. Material of stem bushing: its hardness and strength shall be no greater than that of stem, and it will not form electrochemical corrosion with stem and valve body under water immersion.   technical parameter I. Brief Introduction of Z45H Cast Steel Gate Valve with Hidden Rod: Z45H cast steel gate valve with hidden stem is a product produced by shield workers, which replaces the traditional cast iron valve with compact structure, reasonable design, good rigidity, smooth passage and small flow resistance coefficient. The sealing surface is made of stainless steel and cemented carbide, with long service life; The cast steel gate valve with hidden rod adopts flexible graphite packing, which is reliable in sealing and flexible in operation. The driving modes are manual, electric, pneumatic and gear transmission; Structural types: elastic wedge single gate, rigid wedge single gate and double gate. Cast steel gate valves with non-rising rods are widely used as opening and closing devices to connect or cut off the medium in oil and steam pipelines in petrochemical industry, metallurgy, water treatment, thermal power plants and so on. Second, Z45H cast steel gate valve parts materials:TypeBody,Bonnet,DiscSeal ringStemPackingZ45H-10Gray cast steel,cast steel   Stainless steelGray cast steel,Stainless steel Oil-impregnated asbestos packing    /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1