single seat control valve is a top guide structure regulating valve, the valve fluid channel was streamlined S, the pressure drop, flow is large, wide adjustable range, flow characteristic curve of high precision, the spool oriented area, good vibration resistance. Valve equipped with multi spring diaphragm actuator, compact structure, large output force. Can be used for flow control of different pressure and temperature.

Technical parameters and performance
Through single seat casting type ball valve
Nominal diameter of 40~200mm
Nominal pressure ANSI 125, 150, 300, 600
JIS 10, 16, 20, 30, 1.6, 4, 6.4MPa 40K PN
Connection type flange type: FF, RF, RJ and LG
According to standard of ANSI B16.5, JIS B2201
JB/T79.1 PN1.6MPa, JB/T79.2
Concave convex surface
Welding type: weld butt welding of BW SW (40~50mm) (65~200mm)
HT200 ZG25 ZG1Cr18Ni9 ZG0Cr17Ni12Mo2 material 1.25Cr0.5Mo 5.0Cr0.5Mo SCPH21 SCPH61 Ti
The valve cover at room temperature (P ℃): -17~+230
The elongation of I (E1): -45~-17 ℃, +230~+566 ℃
The elongation of II (E2): integral (E2I): -100~-45 ℃
Welding type (E2W): -196~-100 ℃
The gland type bolt clamp
Filler V PTFE, PTFE impregnated asbestos packing, asbestos braid packing.

Valve components
Spool type oriented single seat plunger type valve.
Flow characteristics of flow characteristics of high precision, refer to figure 2; high volume flow characteristics, refer to figure 1;
Quick opening characteristics: quick opening valve.
Scope of work soft seat operating temperature and pressure difference with reference to figure 3
Division Chatterley surfacing work temperature and pressure difference with reference to figure 4
1Cr18Ni9Ti 0Cr17Ni12Mo2 division Chatterley surfacing material
 

Actuator
Type HA multi spring diaphragm actuator
The membrane material of ethylene propylene rubber spring clip nylon 0.02~0.10,0.08~0.24MPa gas pressure range 0.14,0.16, 0.28MPa
An air supply joint Rc 1/4
The ambient temperature -30~+70 ℃
Note: the valve also can be equipped with VA5 or VA6 and VP actuators
Valve type gas -- gas -- open, close.
Accessory positioner, hand wheel, pneumatic valve position transmitter etc..Performance
The leakage amount of metal seat: Standard ANSI B16.104 grade IV, 0.01% less than the rated Cv
PTFE seat: meet the standard ANSI B16.104 grade VI, less than the rated Cv 10-7. Division Chatterley surfacing seat, less than the rated Cv Cv10-7 (quick opening valve)
Back to the difference of 1% (with a locator) 3% (not with a locator)
Line of ± 1% (with locator) + 5% (not with a locator) Note: V PTFE using standard.
The adjustable range of 50: 1