KATA Pressure seal globe valves are designed in accordance with BS1873 and ASME B16.34 for service of high temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service.at seat and disc seal surface are over-lay with iron-base alloy or Co-base alloy or carbide alloy for long duration. For large size valves will be designed with main disc and vice disc type, and medium flow from up disc to down disc, that the operation torque will be greatly decreased and the seat tightness performance are more reliable.
Design standard: BS 1873、GB/T 12235、ASME B16.34、BS 5352、DIN 3356
OUTSIDE SCREW AND YOKE(OS&Y)
LOOSE DISC、CHOICE OF PLUG OR BALL
SEAT RINGS INTEGRAL WITH BODY
RISING STEM AND HANDWHEEL
FIRE SAFE TYPE
OPTIONAL BY-PASS DESIGN
USE FLEXIBLE AND WOVEN GRAPHITE COLLABORATION TYPE PACKING
BW BUTTWELDING END
Nominal diameter: 2~24"(50~600)
Pressure range: Class 150~2500PM(N20~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
Seals material: Surface Nitriding、TCC、13Cr、304、316、STL、INCONEL、MONEL、HASTELLOY ALLOY、Cu、PTFE、Graphite、ETC.
End connection: RF、RTJ、BW.
Operator type: Handwheel、 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 api standard forged steel /stainless steel pressure seal flange globe valve manufacturers and suppliers in China. All of our good equipments are made by professionals using advanced equipment. Welcome to buy with us.