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| MOQ: | 2 pieces |
| Price: | CN¥6,120.97/pieces 2-29 pieces |
| Supply Ability: | 30000 Piece/Pieces per Month |
Overview of Stainless Steel 304 Pneumatic Diaphragm Angle Type Control Valve:
Pneumatic diaphragm angle-type control valve is an industrial valve that is driven by compressed air and has a right-angle valve body design. It is particularly suitable for regulating scenarios with high pressure difference, high viscosity or media containing particles, and can effectively prevent blockage and coking.
Core features:
Angular structure: Simple flow path, low resistance, anti-clogging, and easy self-cleaning.
Drive method: Powered by compressed air, driven by pneumatic actuators (such as diaphragm type).
Control accuracy: Combined with electrical valve positioner, it can achieve high-precision flow control.
Application scenarios: Commonly used in automation control systems of industries such as chemical engineering, petroleum, power, and pharmaceuticals.
Main Components Material Of Pneumatic Diaphragm Stainless Steel 316 Angle Type Control Valve:
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MATERIAL SPECIFICATION
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Valve Body/Bonnet
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WCB/WCC/WC6/CF8/CF8M/CF3M
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Valve Spool/ Seat
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304/316/316L(Overlaying Steelite Alloy)
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Packing
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Normal: -196°C~+230°C is PTFE, ＞230°C is Flexible Graphite
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Gasket
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Stainless steel with flexible graphite
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Diaphragm cover
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Normal: Q235, Special: SS304
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Diaphragm
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NBR with reinforced polyester fabric
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Spring
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Normal: 60Si2Mn, Special: 50CrVA
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Valve Stem
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2Cr13/117-4PH/304/316/316L
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Main Features ( Accord With GB/T 4213-2008 Standard) Of Pneumatic Control Valve:
| Main Features ( Accord With GB/T 4213-2008 Standard) | |||||
| No. | Item | Without Positioner | Positioner | ||
| Standard Type | Heat Dissipation / Cryogenic Type | ||||
| 1 | Intrinsic Error<(%) | ±8.0 | ±1.5 | ±2.5 | |
| 2 | Hysteresis Error<(%) | - | 1.5 | 2.5 | |
| 3 | Dead Band<(%) | 6 | 0.6 | 1 | |
| 4 | Initial Point Deviation | Air to Open | ±4.0 | ±2.5 | ±2.5 |
| Air to Close | - | ±2.5 | ±2.5 | ||
| 5 | End Point Deviation | Air to Open | - | ±2.5 | ±2.5 |
| Air to Close | ±4.0 | ±2.5 | ±2.5 | ||
| 6 | Rated Stroke Deviation<(%) | +4.0 | +2.5 | 2.5 | |
| 7 | Permitted Leakage Volume | Hard Seal | Level IV | ||
| Soft Seal | Level VI | ||||
Main Technical Data Of Pneumatic Diaphragm CF8/CF8M Angle Type Control Valve:
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MAIN TECHNICAL DATA
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Nominal Diameter (mm)
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20
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25
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32
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40
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50
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65
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80
|
100
|
125
|
150
|
200
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Seat Diameter (mm)
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10
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12
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15
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20
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25
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32
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40
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50
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65
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80
|
100
|
125
|
150
|
200
|
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Rated Flow Coefficient Kv (m³/h)
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Linearity
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1.8
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2.8
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4.4
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6.9
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11
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17
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27
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44
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69
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110
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176
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275
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440
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690
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Equal Percentage
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1.6
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2.5
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4
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6.3
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10
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16
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25
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40
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63
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100
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160
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250
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400
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630
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Rated Stroke L (mm)
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16
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25
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40
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60
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Actuator (Direct Acting)
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SGMA-1
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SGMA-2
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SGMA-3
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SGMA-4
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Actuator (Reverse Acting)
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SGMB-1
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SGMB-2
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SGMB-3
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SGMB-4
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Working Temperature (°C)
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Standard Type
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I a: -20°C~+230°C
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Heat Dissipation Type
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III a: +230°C~+350°C(Cast Steel), III b: +230°C~+450°C(Stainless Steel)
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High Temp Type
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IV: +450°C~+595°C
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Cryogenic Type
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II a: -60°C~-100°C, II b: -100°C~-196°C
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Cut-off Type
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Normal I b: -20°C~+150°C(PTFE Seal), Special I a: -20°C~+230°C(PPL Seal)
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Bellows Type
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Normal V d: -20°C~+350°C, Special V a: -20°C~+150°C(PTFE Seal), V c: -20°C~+230°C(PPL Seal),
V e: -60°C~-100°C, V f: -100°C~-196°C
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Nominal Pressure
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Bar
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16/25/40/63/100
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LB
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ANSI: CL150/300/600
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External Dimension Of SS304 SS316 Pneumatic Diaphragm Angle Type Control Valve:
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DN
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Inch
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L
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C
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A
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HA
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H2
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H3
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H4
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H5
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H6
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H7
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H8
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b
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D1
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D2
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D3
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D4
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N-M
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Weight
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20
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3/4"
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95
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200
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285
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128
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303
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65
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153
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208
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338
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88
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15
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230
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310
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260
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290
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8—M12
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22
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|
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25
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1"
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100
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200
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285
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137
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303
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70
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153
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208
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338
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88
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15
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230
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310
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260
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290
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8—M12
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24
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|
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32
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1-1/4"
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105
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200
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285
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138
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303
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70
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153
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224
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402
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88
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15
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250
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335
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285
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315
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8—M12
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26
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|
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40
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1-1/2"
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115
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200
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288
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152
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323
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85
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153
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228
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402
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88
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15
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270
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355
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305
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335
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8—M14
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35
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|
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50
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2"
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125
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200
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288
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159
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323
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90
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153
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228
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405
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88
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15
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305
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390
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340
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370
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8—M14
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42
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|
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65
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2-1/2"
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145
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240
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365
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218
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417
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102.5
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181
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228
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627
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94
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18
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342
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430
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370
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400
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10—M14
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67
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|
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80
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3"
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155
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240
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365
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230
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417
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107.5
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181
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334
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628
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94
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18
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375
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465
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405
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435
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10—M14
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74
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|
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100
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4"
|
175
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240
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365
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238
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417
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125
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181
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342
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635
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94
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18
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430
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520
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460
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490
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12—M16
|
89
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|
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125
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5"
|
200
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350
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475
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264
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520
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125
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247
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408
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698
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110
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20
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490
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585
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525
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555
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14—M16
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134
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|
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150
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6"
|
225
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350
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475
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331
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520
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175
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247
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453
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702
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110
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20
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556
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660
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580
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630
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16—M16
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166
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|
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200
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8"
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275
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350
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475
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346
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520
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180
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247
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482
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728
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110
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20
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665
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770
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700
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740
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18—M16
|
255
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Pneumatic Diaphragm Actuator Acting Comparison:
| Direct Acting (Air To Close) | Reverse Acting (Air To Open) |
| Spindle Movement With Increase In Air Pressure | Spindle Movement With Increase In Air Pressure |
| Spring Retract Normally Open | Spring Extend Normally Closed |
| Fail To Close FO | Fail To Close FC |
Pneumatic Diaphragm Actuator Introduction:
The pneumatic multi spring diaphragm actuator is low height, light weight and easy to install and calibrate. The utility model is composed of a diaphragm, a compression spring, a tray, a push rod, a bracket, a shaft sleeve, a diaphragm cover and other main parts. The diaphragm is of deep basin shape, with little change in effective surface. It is made of high quality rubber. It is used at - 40°C to +85°C , and the operation is normal. The compression spring adopts the form of multiple combinations. In order to reduce the height and fine machining of the guide surface of the push rod, improve the hardness and reduce the roughness, so as to reduce the backlash and increase the sealing performance. The reaction actuator adopts the O-ring type, which is matched with the push rod and shaft sleeve. It is simple in structure and reliable in sealing. Through correct design and accurate processing, this mechanism eliminates the adjustment structure of the compression spring and can be assembled at one time to reduce the trouble of adjustment.
Pneumatic Actuator has two kinds of direct action type (SGMA) and reverse action type (SGMB). Pneumatic multi spring membrane actuator can be divided into two types according to the action mode: direct action type and reverse action type. When the signal increases, the actuator that the push rod acts in the direction of extending out of the membrane chamber is a direct action type, and the model is SGMA. When the signal increases, the actuator that the push rod acts in the direction of retreating into the membrane chamber is Reverse action type, and the model is SGMB.
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ACTUATOR STURCTURE
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Part No.
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Part Name
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Part Material
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No.01
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Connection End
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Air supply connection end of SGMA
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No.02
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Multi-springs
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60Si2Mn spring steel
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No.03
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Diaphragm
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A. EPDM+Nylon cloth, B. NBR+Nylon cloth
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No.04
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Connection End
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Air supply connection end of SGMB
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No.05
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Yoke/Bracket
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Carbon steel A216 WCB
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No.06
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Indicator Scale
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Stainless steel
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No.07
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Stem Connector
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No.08
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Mounting PAD
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Standard Connect pad for Accessories
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29 Years Valve Factory Founded In 1996:
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