KATA Top entry trunnion mounted ball valves is designed as an integrated valve body. Its support and ball rod fixed by an upper-assembled pivot and an integrated pivot respectively and the integrated high-strength ball rod ensure an accurate ball positioning. The unique technology of retractable valve seat is adopted, realizing online replacement of valve stem, valve stem seal rings, metal valve seats and preloaded springs.
Design standard: ISO 14313、AIP 6D、BS 5351、GB/T 12237、GB/T 19672、API 607/6Fa
Full bore/Reduce bore
Anti-blow out stem
ISO 5211 Std. Top flange connection
DBB (Double block and bleed)
DIB-1/DIB-2 (Double Isolation and Bleed)
Low temperature packing
Emergency grease injection device
Cavity pressure self relief
Nominal diameter: 2"~36"(DN15~900)
Pressure range: Class 150~2500(PN20~PN420)
Body material: ASTM A216 WCB
ASTM A352 LCB
ASTM A351 CF3M/CF3
ASTM A351 CF8M/CF8
Trims material: ASTM A105+ENP
ASTM A350 LF2+ENP
ASTM A182 F6a
ASTM A182 F304/F304L
ASTM A182 F316/F316L
ASTM A182 F51
ASTM A564 17-4PH
Seals material: Surface Nitriding、TCC、13Cr、304、316、STL、INCONEL、MONEL、HASTELLOY ALLOY、Cu、ETC.
End connection: RF、RTJ、BW
Operator type: Wrench、 Worm gear、Electric actuator、pneumatic actuator、gas over oil actuator、electro-hydraulic actuator 、 ETC.
Working temperature: -46~550℃
KAITAI, with over 20 years experience, is one of the professional actuator (electric ,penumatic ) operated flange stainless steel /carbon steel full port trunnion mounted top entry ball valve manufacturers and suppliers in China. All of our good equipments are made by professionals using advanced equipment. Welcome to buy with us.