High Precision Choke Stem Provides Optimum Wear Resistance in Erosive Conditions

Customized tunsgten carbide choke valve stem and seat according to drawings1. Tungsten carbide tip in conjunction with stainless steel stem provides optimum wear resistance in erosive conditions.2. Carbide wear parts for oil and gas industry, wellhead assembly (eg. Christmas tree, multi­stage choke manifold)3. Customized tunsgten carbide choke valve stem and seat according to drawings.Hardened alloy Steel Stems and Seats are widely used in Adjustable Needle & Positive Choke assemblies. Stainless Steel or stainless steel with Tungsten Carbide tips for Abrasive and or Sours Gas Service are available on request. Positive Choke assemblies are furnished less flow bean and may be converted to Adjustable Choke assemblies by replacing the blanking cap assembly and flow bean with the appropriate adjustable bonnet assembly and seat.Product ParametersTYPEDimension (mm)MaterialRecommendedDd1dLα°Valve Core52-8040-7010-4075-12010-45Tungsten+CobaltTYPEDimension (mm)MaterialRecommendedDdLValve Seat75-10055-7020-80Tungsten+Cobalt1. Size : Usually according to customer's requirement 2. High precision 3. ISOTungsten Carbide Materials Grade As Below:Aseeder GradeCo(Wt %)Density(g/cm3)Hardness (HRA)TRS(≥N/mm²)ZY11-C9.0-11.014.33-14.5388.6-90.22800ZY15-C15.5-16.013.84-14.0485.6-87.22800ZY15X14.7-15.313.85-14.15≥893000ZY2018.7-19.113.55-13.75≥83.82800ZY06X5.5-6.514.80-15.0591.5-93.52800ZY087.5-8.514.65-14.85≥89.52500ZY098.5-9.514.50-14.70≥892800ZY10X9.5-10.514.30-14.6090.5-92.53000  /* 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