It is one of the Cv3000 products and can be widely applied to control fluids with different pressure and temperature.
main features
1. Equipped with multi spring film actuators, compact structure and high output power.
2, the valve core adopts the upper guiding structure, the guiding area is large, and the vibration resistance is good.
3. The fluid channel is S streamlined, with low pressure drop loss, large flow rate and large adjustable range.
4. High accuracy of flow characteristics.
Main technical parameters
Valve body
Type: straight through single seat casting ball valve
Nominal access: DN20, 25mm
Nominal pressure: ANSI 125, 150, 300, 600
JIS 10, 16, 20, 30, 40K
PN1.6, 4, 6.4MPa
Connection type: flange connection FF, RF, MFM, RJ, LG
Flange standard ANSI B16.5-1981 JIS B2201-1984
JB/T79.1 ~ 2-94
HG20592 ~ 20614-97, etc.
Welding connection SW
Materials: cast steel (WCB), cast stainless steel (CF8, CF8M), titanium (Ti), etc.
Upper valve cover: normal temperature (P) -17 ~ +230 C
Elongation type I (E I) -45 ~ -17 C, +230 ~ +566 C
Elongation type II (E II) -100 ~ -45 C
Elongation type III (E III) -196 ~ -100 C
Note: the working temperature should not exceed the allowable range of all materials.
Gland type: bolt compression type.
Packing: V type polytetrafluoroethylene, impregnated polytetrafluoroethylene asbestos, asbestos braiding, graphite packing.
0 valve components
Spool type: upper guide single seat plunger spool
Flow Characteristic: High Precision Flow Characteristic of Metal Seat Equal Percentage Characteristic (% CF), Linear Characteristic (LCF) Cv Value from 0.04 to 14
IEC534-1-1976 Soft Seat Equal Percentage Characteristic (% TF), Linear Characteristic (% LTF) Stalley Surfacing Seat Quick Open
Sex spool (QS)
Material: stainless steel (304, 316, 17-4PH, 9Cr18, 316L), stainless steel surfacing Stellay alloy, titanium (Ti) and corrosion resistance
Corrosion alloy and so on.
Executive agencies
Form: LHA multi spring type thin film actuator
Diaphragm material: ethylene propylene rubber, nylon cloth, NBR nylon cloth.
Spring range: 20~100, 80 ~ 240kPa
Air supply pressure: 140 ~ 400kPa
Air source connector: Rc1/4
Ambient temperature: -30 ~ +70 C
Valve action type: positive actuator realizes valve's gas-close type, reaction actuator realizes valve's gas-open type
Accessories: positioner, air filter pressure relief valve, stroke switch, retaining valve, valve position conveyor, handwheel mechanism, etc.
Performance
Leakage: metal valve: seat meets standard ANSI B16.104-1976 IV class, less than 0.01% of rated Cv.
Soft seat: conform to the standard ANSI B16.104-1976 VI level, less than 10-7 of the rated Cv value.
Quick opening spool: less than 10-7 of rated Cv.
Return error: no locator is less than 3% of the full stroke (LHA1 is less than 5% of the full stroke).
The locator is less than 1% of the full stroke.
Basic error: no positioner is less than 5% of the total stroke.
The positioner is less than 1% of the full stroke (LHA1 band positioner is + 2%).
Note: Standard V PTFE packing is adopted.
The adjustable range is 50: 1 (0.25 Cv or less than 14), 30: 1 (Cv < 0.16).
0 Cv value and stroke
Note: symbol 0, Delta and V indicate the range of valves.
The symbol delta indicates the flow characteristics of valves accord with IEC534-1-1976 standard.
Typical flow characteristic curves
Note: it is recommended to use 9Cr18 hardened stainless steel when the temperature of cavitation, flash or water exceeds 100 C.
0 Cavitation, flash, oil prohibition and control valves which are often closed, regardless of the operating temperature and pressure, it is recommended to surfacing Stellay alloy.
If Cv is less than 0.16, all the spool shall be welded or welded with 9Cr18 hardened stainless steel.
Allowable pressure difference
I. plunger spool, metal valve seat (%CF, LCF)
A. gas shut valve
B. gas open valve
Note: The maximum allowable pressure difference shall not exceed the maximum working pressure specified in ANSI B16.34-1981 or JIS B2201-1984 standards.
The upper number in the same cell indicates the allowable differential pressure when the valve is fully open and the lower number indicates the allowable differential pressure when the valve is fully closed.
With * allowable pressure difference, the allowable pressure difference can only be 3 MPa when the valve controls the liquid. If the allowable pressure difference exceeds 3 MPa, please select ZHLC control valve.
- digital control mechanism for digital control of valves in black frame
II. Plunger spool, metal valve seat (%TF, LTF)
A. gas shut valve
B. gas open valve
Note: The maximum allowable pressure difference shall not exceed the maximum working pressure specified in ANSI B16.34-1981 or JIB2201-1984 standards.
- digital control mechanism for digital control of valves in black frame
III. Fast welding valve core and metal valve seat (QS)
A. gas shut valve
B. gas open valve
Note: The maximum allowable pressure difference shall not exceed the maximum working pressure specified in ANSI B16.34-1981 or JIB2201-1984 standards.
- digital control mechanism for digital control of valves in black frame
Shape connection dimension
Flange dimensions
Note: flange A is in line with IEC534-3-1976 standard.
Dimensions
Note: The H column size on the table is the number of adjusting valves without handwheel mechanism. If the handwheel mechanism is equipped with top, the size of handwheel mechanism should be added accordingly.
Weight
Flange connection
Welding connections
