D641X, D643H pneumatic flange butterfly valve is composed of angle stroke pneumatic actuator and butterfly valve body, its main advantages: simple structure, small size and light weight, low cost, pneumatic flange butterfly valve, the characteristics of the valve is particularly significant, installed in the high-altitude cul-de-sac, through the two two five-way solenoid valve control is convenient to operate with the valve locator can also be adjusted to the media flow, temperature, pressure and other parameters. Pneumatic flange butterfly valve fluid resistance is small, medium and large caliber pneumatic flange butterfly valve full open effective circulation area is larger, open and close quickly and labor-saving, butterfly wrench can be completed by rotating the 90 angle of opening and closing, due to the rotary axis on both sides of the butterfly plate hand media force is close to equal, and the direction of the torque generated by the opposite direction, and thus open and close the torque is smaller, low pressure can be achieved under good sealing, pneumatic flange butterfly valve sealing materials have clear rubber, fluorine rubber, called pneumatic flange soft seal butterfly valve, the valve is a soft seal, the valve is a soft seal. Known as pneumatic flange soft seal butterfly valve. One of the pneumatic hard seal flange butterfly valve for multi-layer metal hard seal, with the advantages of elastic sealing, no matter in the low temperature have excellent sealing performance. So the pneumatic flange butterfly valve is widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gases and water supply and drainage and other corrosive media pipeline.
Pneumatic Flange Butterfly Valve Product Pictures
Pneumatic flange butterfly valve Main technical parameters
1、Valve Body
Valve body form | Straight-through casting butterfly valve |
Nominal diameter | DN50～1000mm |
Nominal pressure | PN1.0、1.6、2.5MPa |
Flange Standard | JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97et al. (and other authors) |
Connection form | Flange Type, Clamping Type |
Bonnet type | all-in-one |
Gland type | Gland compression type |
sealing packing | V-type polytetrafluoroethylene packing, flexible graphite packing |
2、Valve inner parts
Valve plate type | Vertical plate type (butterfly) |
Flow Rate Characteristics | Switching: Linear; Regulating: Approximate equal white to white ratio |
3. Executing agency
Actuator Model | GT Series, SR Series, AT Series, AW Series Single and Double Acting Pneumatic Actuators |
Supply pressure | 400～700KPa |
air interface | G1/4"、G1/8"、G3/8"、G1/2" |
environmental temperature | -30～+70℃ |
Forms of action | Single-acting actuators: air shut-off (B) - valve position open (FO) on loss of air; air open (K) - valve position closed (FC) on loss of air. Double-acting actuators: Air shut-off (B) - holding position in case of loss of air (FL); Air open (K) - holding position in case of loss of air (FL). |
Accessories available | Positioners, solenoid valves, air filtration reducers, holding valves, travel switches, valve position transmitters, handwheel mechanisms, etc. |
4. Pneumatic flange butterfly valve Main performance indicators
Nominal diameterDN(mm) | DN50～1200 | ||||
Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 |
test pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 |
Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | |
Low Pressure Airtightness Test | 0.5～0.7 | ||||
Applicable medium | Water, oil (temperature ≤ 90 ℃), vapor, nitric acid (temperature ≤ 200 ℃), acetic acid (temperature ≤ 200 ℃) | ||||
5. Pneumatic flange butterfly valve Part material
Part Name | Name of material |
valve body | Cast iron, cast steel, stainless steel, chrome molybdenum steel, alloy steel |
butterfly plate | Cast steel, alloy steel (hard chrome plated), stainless steel, chrome molybdenum steel |
seals | Rubber, PTFE, PPL, stainless steel, polyester, anti-wear materials |
tappet | 2Cr13、1Cr13Stainless steel, chrome-molybdenum steel |
packing material | Polytetrafluoroethylene, flexible graphite |
6. Pneumatic flange butterfly valve External connection size
Nominal diameter DN(mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |
L | 108 | 112 | 114 | 127 | 140 | 140 | 152 | 165 | 178 | 190 | 216 | 222 | 229 | 267 | 292 | 318 | 330 | 410 |
H | 112 | 115 | 120 | 140 | 170 | 180 | 210 | 240 | 290 | 320 | 350 | 380 | 410 | 470 | 550 | 640 | 710 | 770 |
n-φd | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 | 12-22 | 12-26 | 12-26 | 16-26 | 16-30 | 20-30 | 20-33 | 20-36 | 24-36 | 24-39 | 28-39 | 28-42 |
H1 | Depending on the actuator fitted | |||||||||||||||||
A | Depending on the required torque of the valve, the configuration of different models, the external dimensions are also different. | |||||||||||||||||
D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 | 640 | 715 | 840 | 910 | 1025 | 1125 | 1255 |
D1 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 | 585 | 650 | 770 | 840 | 950 | 1050 | 1170 |
D641X, D643H pneumatic flange butterfly valve is composed of angle stroke pneumatic actuator and butterfly valve body, its main advantages: simple structure, small size and light weight, low cost, pneumatic flange butterfly valve, the characteristics of the valve is particularly significant, installed in the high-altitude cul-de-sac, through the two two five-way solenoid valve control is convenient to operate with the valve locator can also be adjusted to the media flow, temperature, pressure and other parameters. Pneumatic flange butterfly valve fluid resistance is small, medium and large caliber pneumatic flange butterfly valve full open effective circulation area is larger, open and close quickly and labor-saving, butterfly wrench can be completed by rotating the 90 angle of opening and closing, due to the rotary axis on both sides of the butterfly plate hand media force is close to equal, and the direction of the torque generated by the opposite direction, and thus open and close the torque is smaller, low pressure can be achieved under good sealing, pneumatic flange butterfly valve sealing materials have clear rubber, fluorine rubber, called pneumatic flange soft seal butterfly valve, the valve is a soft seal, the valve is a soft seal. Known as pneumatic flange soft seal butterfly valve. One of the pneumatic hard seal flange butterfly valve for multi-layer metal hard seal, with the advantages of elastic sealing, no matter in the low temperature have excellent sealing performance. So the pneumatic flange butterfly valve is widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gases and water supply and drainage and other corrosive media pipeline.
Pneumatic Flange Butterfly Valve Product Pictures
Pneumatic flange butterfly valve Main technical parameters
1、Valve Body
Valve body form | Straight-through casting butterfly valve |
Nominal diameter | DN50～1000mm |
Nominal pressure | PN1.0、1.6、2.5MPa |
Flange Standard | JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97et al. (and other authors) |
Connection form | Flange Type, Clamping Type |
Bonnet type | all-in-one |
Gland type | Gland compression type |
sealing packing | V-type polytetrafluoroethylene packing, flexible graphite packing |
2、Valve inner parts
Valve plate type | Vertical plate type (butterfly) |
Flow Rate Characteristics | Switching: Linear; Regulating: Approximate equal white to white ratio |
3. Executing agency
Actuator Model | GT Series, SR Series, AT Series, AW Series Single and Double Acting Pneumatic Actuators |
Supply pressure | 400～700KPa |
air interface | G1/4"、G1/8"、G3/8"、G1/2" |
environmental temperature | -30～+70℃ |
Forms of action | Single-acting actuators: air shut-off (B) - valve position open (FO) on loss of air; air open (K) - valve position closed (FC) on loss of air. Double-acting actuators: Air shut-off (B) - holding position in case of loss of air (FL); Air open (K) - holding position in case of loss of air (FL). |
Accessories available | Positioners, solenoid valves, air filtration reducers, holding valves, travel switches, valve position transmitters, handwheel mechanisms, etc. |
4. Pneumatic flange butterfly valve Main performance indicators
Nominal diameterDN(mm) | DN50～1200 | ||||
Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 |
test pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 |
Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | |
Low Pressure Airtightness Test | 0.5～0.7 | ||||
Applicable medium | Water, oil (temperature ≤ 90 ℃), vapor, nitric acid (temperature ≤ 200 ℃), acetic acid (temperature ≤ 200 ℃) | ||||
5. Pneumatic flange butterfly valve Part material
Part Name | Name of material |
valve body | Cast iron, cast steel, stainless steel, chrome molybdenum steel, alloy steel |
butterfly plate | Cast steel, alloy steel (hard chrome plated), stainless steel, chrome molybdenum steel |
seals | Rubber, PTFE, PPL, stainless steel, polyester, anti-wear materials |
tappet | 2Cr13、1Cr13Stainless steel, chrome-molybdenum steel |
packing material | Polytetrafluoroethylene, flexible graphite |
6. Pneumatic flange butterfly valve External connection size
Nominal diameter DN(mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |
L | 108 | 112 | 114 | 127 | 140 | 140 | 152 | 165 | 178 | 190 | 216 | 222 | 229 | 267 | 292 | 318 | 330 | 410 |
H | 112 | 115 | 120 | 140 | 170 | 180 | 210 | 240 | 290 | 320 | 350 | 380 | 410 | 470 | 550 | 640 | 710 | 770 |
n-φd | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 | 12-22 | 12-26 | 12-26 | 16-26 | 16-30 | 20-30 | 20-33 | 20-36 | 24-36 | 24-39 | 28-39 | 28-42 |
H1 | Depending on the actuator fitted | |||||||||||||||||
A | Depending on the required torque of the valve, the configuration of different models, the external dimensions are also different. | |||||||||||||||||
D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 | 640 | 715 | 840 | 910 | 1025 | 1125 | 1255 |
D1 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 | 585 | 650 | 770 | 840 | 950 | 1050 | 1170 |
