Location:PRODUCTS >> Control valve >> Pneumatic diaphragm cage valve
Pneumatic diaphragm cage valve
Model: CV3000
Nominal diameter: DN20 ~ 200mm
Nominal pressure: PN1.6 ~ 6.4MPa
Ambient temperature: -30 ~ +70 ℃ The
Main material: cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti) titanium
Drive: aerodynamic
Design criteria: GB / T17213
Flange standard: GB / T9113, JB / T79 , HG20594 and other standard
Inspection standards: GB / T4213
Form connect: flange (FF RF RTJ), welding (SW BW) , Thread (for 1 "or less)

First, the product description

Pneumatic diaphragm valve is a control of a variety of high temperature, low temperature high-pressure, pressure balance control valve, the valve structure is compact, the valve fluid flow was S-line, but also to improve the smooth flow around the sleeve fluid Of the guide vane, which is characterized by pressure loss loss, large flow, wide range of adjustable, high flow characteristics, in line with IEC534 standards, regulating valve dynamic stability, low noise, flash cavitation corrosion is small, suitable for control High temperature differential pressure fluids. Equipped with LHA multi-spring pneumatic film actuator, its compact structure, the output power. Products comply with GB / T4213-92.
 

Second, the main technical parameters

Valve Body
 Connection Type: Flange Connection: FF, RF, RJ, LG, Groove, Insert 
 Flange Standard: JIS B2201-1984, ANSI B16.5-1981, GB / T9112 ~ 9124-2000 etc. 
 Welding Connection: SW engagement welding 
 materials: steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti), titanium and other 
 valve cover: normal type (P): - 17 ~ + 230 ℃ 
 elongated ⅰ (E1): -45 ~ -17 ℃ + 230 ~ + 566 ℃ 
 Elongation Ⅱ (E2I): - 100 ~ -45 ℃ 
 Elongation Ⅱ (E2W): - 196 ~ -100 ℃ 
 Note: the working temperature is not allowed to exceed a variety of materials The allowable range. 
 Gland Type: Bolt Compression 
 Filling: V-type PTFE packing, impregnated PTFE asbestos packing, asbestos braided packing, graphite packing 
 
   Valve components

 Type: Single-seat sleeve plunger-type valve plug 
 flow Features: Equal Percentage (%) and Linearity (L) 
 Sleeve Type: Discrete Sleeve 
 Material: Stainless Steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L) Corrosion of alloys
 

Actuator
 
Type: LHA multi-spring film actuator, LVA5 single spring film actuator, LVA6 single-acting cylinder piston actuator, LVP double-acting cylinder piston actuator 
 diaphragm material: EPDM clip nylon cloth, NBR nylon clip cloth 
 spring range: 20 ~ 100,80 ~ 240kPa (LHA , LVA5 type), 190 ~ 350,190 ~ 400kPa ( LVA6 type) 
 supply pressure: 140 ~ 400kPa (LHA type), 140 ~ 280kPa (LVA5 type) 
 400 - 500kPa (LVA6 type), 300 ~ 500kPa (LVP type) 
 Air source interface: Rc1 / 4 
 Ambient temperature: -30 ~ +70 ℃ 
 Valve action type: Positive or reverse acting actuator to achieve the valve gas-off or gas - Open 
 Accessories: Positioner, Air Filter Regulator, Relief Valve, Stroke Switch, Valve Position Transmitter, Solenoid Valve, Handwheel Mechanism, etc.
 

Performance
 
Leakage: Metal Seat: less than 0.01% of valve rated capacity, in line with ANSI B16.104-1976IV grade 
 soft seat: less than the valve rated capacity of 10-7, in line with ANSI B16.104-1976IV level Backlash 
 : with positioning Less than 1% of full stroke 
 without positioner: less than 3% of full stroke (LHA1 less than 5% of full stroke) 
 Basic error: With positioner: less than ± 1% of full stroke 
 without locator: Less than ± 5% of the full stroke 
 Note: The standard V-type PTFE filler 
 can be adjusted within the range of 50: 1 (0.25≤Cv≤14) or 30: 1 (CV≤0.16)
 

Third, the main dimensions

DN Execution
agency
H C φB E
Normal temperature
type (P)
Elongation
type Ⅰ (E1)
Elongation
type Ⅱ (E2I)
Elongation
Ⅱ (E2W)
40 LHA1D, R 425 590 705 945 230 218 70
LHA2D, R 500 665 780 1020 281 267
LHA3D, R 590 760 875 1140 363 350
50 LHA1D, R 425 595 710 950 230 218 80
LHA2D, R 500 670 785 1025 281 267
LHA3D, R 595 765 875 1140 363 350
65 LHA2D, R 575 745/755 880 1130 281 267 88
LHA3D, R 630 800/810 930 1180 363 350
LHA4D, R 865 1035/1045 1165 1495 520 470
80 LHA2D, R 580 755/765 900 1135 281 267 98
LHA3D, R 635 810/820 955 1190 363 350
LHA4D, R 870 1045/1055 1190 1505 520 470
100 LHA2D, R 610 810/870 915 1150 281 267 113
LHA3D, R 660 860/870 1020 1205 363 350
LHA4D, R 890 1100/1110 1255 1520 520 470
LVA5R 1420 1635 1820 2050 - 620
LVA6R 1160 1375 1560 1790 - 445
150 LHA3D, R 785 1020/1045 1250 1385 363 350 170
LHA4D, R 955 1190/1215 1425 1570 520 470
LVA5R 1480 1740 1980 2110 - 620
LVA6R 1220 1480 1720 1850 - 445
200 LHA4D, R 1090 1350 1580 1710 520 470 220
LVA5R 1585 1850 2145 2275 - 620


QQ
0086 021-69755272
qrCode