Features 

 The series is a core seat valve metal, or metal with a rotating Teflon ball valve, ball valve and butterfly valve will control the characteristics of the best combined into one, both can be used as control valves, shut-off valve can also be turned off. Its main features are: 
 (1) without any overall style valve fittings, pipe or bolt therefore not subject to stress, and because the body without any fittings, so the pressure hull will not be subject to pressure "mutation" effect; 
 (2) has a V-type body, even in low flow or high viscosity media case, but also within the entire range to ensure the accuracy of control; 
 (3) leak-proof and durable seat in diameter at its inner core is lined with stainless steel or PTFE O-ring cup, valve seat with a large cross-section made of tungsten carbide cobalt, through a corrugated alloy spring to further enhance the structure of the seat; 
 (4) When the valve is closed, V-notch and the shear wedge between the valve seat, and both have self-cleaning feature will also prevent the ball stuck core, especially for high viscosity, suspension, paper pulp, which do not clean, include fiber media occasions. 



 Product Performance Specification 
 Nominal 
 PN (MPa) applied test pressure for medium temperature 
 Shell test seal test 
 1.6 2.4 1.76 water, oil, gas and 
 High viscosity, fibrous, 
 Solid particles and other media -28 ℃ ~ 550 ℃ 
 2.4 3.75 2.75 
 4.0 6.0 4.4 
 Application specification flange JB79-59 GB20592-97 AMSI B16.5 
 Inspection and testing JB / T 9092-99, API 598 

 Main parts material form 
 Part Name Material 
 Body, bonnet WCB CF8 
 Ring 2Cr13 + 304 + nitride nitride 
 Sphere 2Cr13 + 304 + HARD HARD 
 Seat, stem 2Cr13 304 
 Flexible graphite + stainless steel gasket Flexible graphite + stainless steel 
 Stud 35CrMoA 1Cr18Ni9Ti