Product material : Moulded steel,Stainless steel,Forged Steel Product standard : API 6D API 608 ASME B16.34 BS 5351

Brief description 

  The seat material of general purpose ball valve employs generally non-metal material, such as PTFE. Limited by the seat material, the general purpose ball valve can not be used in case of high temperature application, and application medium with solid articles, and ash dregs neither. So, the application scope of general purpose ball valve is restricted partially. Taking this into consideration, CHAODA company has developed successfully after years of hard study full range of metal to metal sealed ball valve, including floating ball valve and trunnion ball valve, which have found extensive applications in such industries as petroleum, chemistry, power, metallurgy, and light industry. The metal to metal seated ball valve made by CHAODA has been patented by the state (patent No. ZL 99 2 03651.8). 
 
Design features 

  Advanced hardening technology employed for ball and seat
  Valve stuck under high temperature prevented
  Excellent tightness function
  An entire fire safe structure
  Natural anti-atatic structure
  Double-block and bleed function 

Standards and specification 

  Design & manufacture：API 6D、API 608、ASME B16.34、ANSI／AWWA C507、MSS SP-72、BS 5351、BS 6364、BFCI 70-2、ISO 5211、NACE MR0175 .

  Connection ends：ASME B16.5、ASME B16.47、API 605、MSS SP-44、ISO 7005-1、JIS B2238、BS 12627、ASME B16.25、ASME B16.11、BS 12760 .

  Face to face dimension：ASME B16.10、ISO 5752、BS 558、BS 12982 

  Testing & inspection：API 598、API 6D、API 607、API 6FA、BS 6755、BS 12569、MSS SP-82、MSS SP-61 
  Normal pressure or rating：Class 150 ～ Class 2500、JIS 10K ～ 20K、PN 10 ～ PN 420

  Normal diameter or bore：NPS1/2～NPS10、DN15～DN250

  Applicable temperature：-196℃～540℃

  Operation type：Manual, worm gear, pneumatic, electric