Technical parameters and performance:
 Body type: Straight cast spherical valve 
 Nominal diameter: 50,65,80,100,150,200,250,300 mm 
 Connection type: Flange connection: RF, RJ 
 Flange standard according to: JIS B2201 or ANSI B16.5 
 Weld connection: Butt weld BW; Insert weld SW 
 Material: ZG25 and ZG1Cr18Ni9, ZG0Cr12Mo2, 25Cr0.5Mo, 5.0Cr0.5 or SCPH21, SCPH61 
 Upper bonnet: Normal temperature type (P): - 17 ~ + 230 Celsius, Elongation Type I (E1): - 45 to -17 degrees Celsius, 230 to 566 Celsius 
 Gland Type: Bolt Compression 
 Filling: PTFE Filling, Asbestos Preparation Filling, Graphite Filling

 In-Valve Components:
 Cartridge Style: Balanced Cartridge 
 Flow Characteristics: 
 Cavitation Resistant Sleeve: Percentage and Linear Features; Low Noise Sleeve: Linear Features Materials: 17-4PH, 0Cr17NiMo2,

 Actuator:
 Type: HA Multi-Spring Film Actuator 
 Diaphragm Material: EPR Nylon 
 Spring Range: 0.08 ~ 0.24, 0.04 ~ 0.24Mpa 
 Air Pressure: 0.28,0.30,0.35,0.40Mpa 
 Air Source: Rc1 / 4 
 Ambient temperature: -30 ~ +70 degrees Celsius 
 Valve type of action: Air-off or open air 
 Accessories: positioner, hand wheel mechanism, pneumatic valve position transmitter

 Of   energy:
 Leakage: ANSIB16.104IV standard level, less than the nominal 0.01% CV 
 hysteresis: 3% (without positioner); 1% (with positioner) 
 Linear: ± 5% (without positioner) , Plus or minus 1% (with locator) 
 Adjustable range: 50: 1

 Order  goods  to be  known:
 1. the name of Model 2. Nominal diameter the DN (mm) 
 3. Nominal flow characteristics in claim 4. The material of the body member material and the valve 
 6 and the temperature range before and after the media type valve 7. Pressure (differential pressure) 8. Sealing form 9. Supporting accessories