| Customized: | Customized |
|---|---|
| Certification: | ISO, API, CE |
| Power: | Pneumatic |
| Pressure: | Medium Pressure |
| Brand: | Xuan Cheng |
| Work Temperature: | Normal Temperature |
| Customization: |
|---|
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BQ641F Pneumatic flange insulated ball valve body and internals| Body form | Two section cast body (insulated with outer welded jacket) |
| Nominal diameter | DN20 to DN200 |
| Nominal pressure | PN1.6, 2.5, 4.0 MPa; ANSI 150, 300LB; JIS 10, 20, 30K |
| Flange standard | GB, JB, HG, JIS, ANSI, DIN |
| Connection form | Flange type |
| Gland type | Bolt-down type |
| Applicable temperature | -40 ~ +450 ° C |
| Spheroidal form | "O" shaped sphere |
| Flow characteristics | Approximate fast opening characteristics |
| Sealing filler | Flexible graphite filler, etc |
| Actuator type number | GT, SR, ST, AT, AW series single and double acting pneumatic actuators |
| Air supply pressure | 0.4 to 0.7MPa |
| Air source interface | G1/4", G1/8", G3/8", G1/2" |
| Ambient temperature | -20 to +90 ° C |
| Mode of action | Single acting actuator: gas close type (B) -- valve position open (FO) when gas is lost; Gas open (K) -- valve position closed (FC) Double acting actuator: gas close (B) -- valve position hold (FL) when gas is lost; Air open (K) -- valve position hold (FL) when air is lost |
| Accessories available | Positioner, solenoid valve, air filter pressure reducer, holding valve, stroke switch, valve position transmitter, handwheel mechanism, etc |
| Step 1: Indicators | With NAMUR standard visual multi-function position indicator, easy to install the position switch positioner and other accessories. |
| 2 Cylinder block | ASTM6005 Die-cast aluminum alloy cylinder, hard oxidation, epoxy paint, PTFE coating or nickel plating to meet different requirements. |
| 3. End caps | Die cast aluminum alloy surface metal powder and spray paint various colors, PTFE coated or nickel plated treatment. |
| 4 Output shaft | Nickel-plated alloy steel, high precision integrated output in line with NAMUR ISO5211 DIN3337 standard, can be customized size and stainless steel material according to customer requirements. |
| 5. Pistons | Double piston rack, using cast aluminum hard oxidation or cast steel galvanized treatment, symmetrical installation position, rapid operation, long service life, simple reverse piston can change the direction of rotation. |
| 6. High performance spring | High quality materials, coated preloaded assembly, strong corrosion resistance and long service life, can safely and easily disassemble single-acting actuators by varying the number of springs to meet different torque output ranges. |
| 7. Stroke adjustment | Two independent external stroke adjustment screws can facilitate accurate adjustment of the switch position of ±5° in two directions. |
| 8. Guide plate | The use of low friction, long life composite material to prevent the output shaft fracture, maintenance and replacement is simple and convenient. |
| 9. Air source interface | Fully in line with NAMUR standards, can be simple and convenient installation of solenoid valve. |
| 10. End cap bolt | Long term corrosion resistant internal and external stainless steel fasteners. |
| 11. Bottom mounting holes | The bottom mounting holes are designed according to ISO5211.DIN3337 and can be directly mounted to the clutch or bracket. |
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