Pneumatic Film High Temperature Control Valve
Pneumatic Film High Temperature Control Valve
Nominal Diameter: DN20 ~ 300mm
Nominal Pressure: PN 1.6,2.5,4.0,6.4,10.0 MPa
Ambient Temperature: -30 ~ + 70 ℃
Suitable Medium: Gas, Liquid, Vapor and Other media
Connected Standard: Flange (FF RF RTJ), Solder (SW BW), Thread (for 1 "or less)
First, The Pneumatic High Temperature Control Valve Product Overview
ZJSGW-P (M) series of pneumatic high temperature control valve, by the multi-spring pneumatic film actuator and low flow resistance high temperature control valve body composition, multi-spring actuator height is low, light weight, easy to install.
Pneumatic high temperature control valve body flow channel was S streamlined, with a compact, light weight, action sensitive, low pressure drop, valve capacity, accurate flow characteristics, easy maintenance, can be used for harsh working conditions. Pneumatic thin film high temperature control valve with electric - air valve positioning or gas - pneumatic valve positioner, through the input 4-20mA control signal can control the operation, can achieve the process of pipeline fluid medium automatic control.
Pneumatic high temperature control valve is widely used in gas, liquid, steam and other media parameters such as pressure, flow, temperature, level and other parameters remain at a given value.
Pneumatic high temperature control valve is particularly suitable for allowing leakage is small, the valve before and after the pressure difference is not high and high temperature occasions.
Second, The Main Technical Parameters Of High Temperature Control Valve
1 , The Valve Body
| Body Form | Through Casting Ball Valve |
Nominal Diameter | DN20 ~ 300mm |
Nominal Pressure | PN 1.6, 2.5, 4.0, 6.4, 10.0 MPa |
Flange Standard | GB / T9113, JB / T79, HG20594 and other standards |
Connection form | Flange (FF RF RTJ), solder (SW BW), thread (for 1 "or less) |
Bonnet Form | High temperature + 250 ~ +450 ℃, ultra-high temperature + 250 ~ +560 ℃ |
Gland Type | Bolt compression |
Sealed Packing | V-type PTFE packing, impregnated with polytetrafluoroethylene asbestos packing, asbestos textile filler, graphite filler |
Body Material | Cast steel (WCB), stainless steel (CF8, CF8M, CF3, CF3M), chrome molybdenum steel |
2 , Trim
| Spool Form | Single Seat, Sleeve Structure |
Flow Characteristics | Linear, Equal Percentage |
Spool Material | Stainless Steel (304,304L, 316,316L) |
3 , The Implementation Of Institutions And Accessories, The Form Of Action
| Actuator Type | ZHA / B multi-spring film film actuator | ||||
Actuator Type | ZHA / B-22 | ZHA / B-23 | ZHAB-34 | ZHA / B-45 | ZHA / B-56 |
Effective Area (cm2) | 350 | 350 | 560 | 900 | 1400 |
Travel (mm) | 10,16 | 25 | 40 | 40,60 | 100 |
Spring Range (KPa) | 20 to 100 (standard), 20 to 60, 60 to 100, 40 to 200, 80 to 240 | ||||
Diaphragm Material | Rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth | ||||
Supply Pressure | 140 ~ 400KPa | ||||
Air Interface | RC1 / 4 " | ||||
Ambient Temperature | |||||
Can be equipped with accessories | Locator, air filter pressure reducer, security valve, hand wheel institutions and so on | ||||
Form Of Action | (B) - When the valve is open (FO); Gas open (K) - Valve when the valve off (FC) | ||||
Third, The Main Performance Indicators Of Pneumatic High Temperature Control Valve
Project | Without Locator | With Locator | ||
Basic Error% | ± 5.0 | ± 1.0 | ||
Backlash% | ≤3.0 | ≤1.0 | ||
Dead Zone% | ≤3.0 | ≤0.4 | ||
Always Point Deviation% | Open air | Starting Point | ± 2.5 | ± 1.0 |
Starting Point | ± 5.0 | ± 1.0 | ||
Gas off | Starting Point | ± 5.0 | ± 1.0 | |
End | ± 2.5 | ± 1.0 | ||
Rated Stroke Deviation% | ≤2.5 | |||
Leakage L / H | 0.01% × valve rated capacity | |||
Adjustable Range R | 30: 1 | |||
Fourth, The Pneumatic High Temperature Regulating Valve Rated Flow Coefficient KV, Allow Pressure
| Nominal Diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
Seat Diameter (dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
Rated Flow Coefficient (KV) | Single Seat | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 630 | 875 | 1250 |
Sleeve | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 155 | 250 | 370 | 580 | 900 | 1300 | |
Allowable Differential Pressure (MPa) | Single Seat | 3.8 | 3.2 | 3.0 | 2.0 | 1.8 | 1.5 | 1.4 | 1.0 | 0,7 | 0.6 | 0.5 | 0.3 | 0.1 |
Sleeve | 6.4 | 6.4 | 5.2 | 5.2 | 4.6 | 4.6 | 3.7 | 3.7 | 3.5 | 3.1 | 3.1 | 2.6 | 2.2 | |
Rated Travel (mm) | 16 | 25 | 40 | 60 | 100 | |||||||||
Actuator Type | ZHA / B-22 | ZHA / B-23 | ZHA / B-34 | ZHA / B-45 | ZHA / B-56 | |||||||||
5, Pneumatic High Temperature Control Valve Main Connection Size
| Nominal Diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
L | PN16 / 25 | 181 | 184 | 200 | 222 | 254 | 276 | 298 | 352 | 410 | 451 | 550 | 640 | 880 |
PN40 | 194 | 197 | 200 | 235 | 267 | 292 | 317 | 368 | 425 | 473 | 640 | 760 | 910 | |
PN64 | 206 | 200 | 210 | 251 | 286 | 311 | 337 | 394 | 440 | 508 | 670 | 810 | 950 | |
H | PN16 / 25 | 52.5 | 57.5 | 75 | 75 | 85.5 | 92.5 | 100 | 110 | 142.5 | 158 | 170 | 195 | 230 |
PN40 | 52.5 | 57.5 | 75 | 75 | 82.5 | 92.5 | 100 | 117.5 | 150 | 167.5 | 187.5 | 205 | 245 | |
PN64 | 65 | 40 | 85 | 85 | 90 | 102.5 | 107.5 | 125 | 172.5 | 195 | 207.5 | 230 | 260 | |
H1 | 370 | 396 | 428 | 428 | 436 | 415 | 464 | 507 | 690 | 840 | 632 | 725 | 882 | |
H2 | 298 | 298 | 298 | 298 | 298 | 380 | 380 | 380 | 510 | 510 | 510 | 650 | 650 | |
H3 | 180 | 180 | 180 | 180 | 180 | 236 | 236 | 236 | 310 | 310 | 310 | 380 | 380 | |
L1 | 280 | 280 | 280 | 280 | 280 | 350 | 350 | 350 | 475 | 475 | 475 | 560 | 560 | |
A | 282 | 282 | 282 | 282 | 282 | 360 | 360 | 360 | 470 | 470 | 470 | 580 | 580 | |
C | 220 | 220 | 220 | 220 | 220 | 270 | 270 | 270 | 320 | 320 | 320 | 400 | 400 | |
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