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Shanghai Yuhu Self Control Valve Co., Ltd
FBQ641F/PPL Pneumatic Explosion proof Ball Valve
NegotiableUpdate on 04/07
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Overview
FBQ641F/PPL Pneumatic Explosion proof Ball Valve FBQ641F/PPL Pneumatic Explosion proof Ball Valve I. Overview of Pneumatic Explosion proof Ball Valve Products The FBQ641F/PPL Pneumatic Explosion proof Ball Valve produced by Shanghai Yuhu Company adopts the AT series new piston pneumatic actuator and floating ball valve, which is suitable for regulating and cutting occasions
Product Details
FBQ641F/PPL Pneumatic Explosion proof Ball Valve
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| FBQ641F/PPL Pneumatic Explosion proof Ball Valve |
1、 Overview of Pneumatic Explosion proof Ball Valve Products
The FBQ641F/PPL pneumatic explosion-proof ball valve produced by Shanghai Yuhu Company adopts the AT series new piston pneumatic actuator and floating ball valve, which is suitable for regulating and cutting occasions. Pneumatic explosion-proof ball valves have excellent sealing performance, large flow capacity, simple structure, long service life, and are easy to maintain. The equipped actuator has the characteristics of simple structure, compact size, excellent performance, and large output torque. Pneumatic explosion-proof ball valve equipped with explosion-proof travel limit switch, explosion-proof solenoid valve, pressure reducing valve, and 0.4-0.7MPa gas source can achieve switch operation, and send two pairs of passive contact signals to indicate the switch of the valve. There are two types of actuators: single acting and double acting. The unique advantage of single acting type is that once the power source fails, the explosion-proof pneumatic ball valve will automatically be in the open or closed position according to the requirements of the control system. Pneumatic explosion-proof ball valves are widely used in industrial fields such as chemical, petroleum, textile, power, food and pharmaceutical, refrigeration, aviation, aerospace, papermaking, etc. They can not only control gas, liquid, and vapor media, but also control sewage and fiber containing substances..
2、 Product features of pneumatic explosion-proof ball valve
(1) Low fluid resistance, ball valves have the lowest fluid resistance among all valve types, even for reduced diameter ball valves, their fluid resistance is quite small.
(2) Thrust bearings reduce the friction torque of the valve stem, allowing for long-term balanced and flexible operation of the valve stem.
(3) The valve seat has good sealing performance and is made of sealing rings made of materials such as polytetrafluoroethylene. The structure is easy to seal, and the sealing ability of the ball valve increases with the increase of medium pressure.
(4) The valve stem seal is reliable. As the valve stem only rotates without lifting, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.
3、 Main technical parameters of pneumatic explosion-proof ball valve
| Nominal diameter (mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow coefficient Kv | 21 | 38 | 72 | 112 | 170 | 273 | 384 | 512 | 940 | 1452 | 2222 | 3589 | 5128 | 7359 |
| Nominal pressure (MPa) | PN1.6、2.5、4.0、6.4MPa | |||||||||||||
| leakage | Soft seal: zero leakage; Hard seal: ≤ 10-5 of rated flow rate | |||||||||||||
| Valve body form | Two section valve body (floating sphere) | Two section valve body (fixed sphere) | ||||||||||||
| Valve core form | O-shaped spherical valve core | |||||||||||||
| sealing packing | Polytetrafluoroethylene (PTFE), metal graphite wrapped gasket | |||||||||||||
| connection type | Flanges, welding, threading | |||||||||||||
| flow characteristics | Approximate fast opening characteristic | |||||||||||||
| adjustable range | DN15-65 | DN80-300 | ||||||||||||
| 250:1 | 350:1 | |||||||||||||
| basic error | Equipped with locator: less than ± 2% of the full stroke | |||||||||||||
| backlash | Equipped with locator: less than 2% of the full stroke | |||||||||||||
| Applicable Temperature | sealing surface | |||||||||||||
| PTFE ≤ 150 ℃, RTFE ≤ 180 ℃, PPL ≤ 300 ℃, hard seal ≤ 450 ℃ | ||||||||||||||
| Configure execution mechanism | GT, SR, ST, AT, AW series single and double acting pneumatic actuators | |||||||||||||
| Control method | Two position switch control, 4-20mA analog control | |||||||||||||
4、 Technical parameters of pneumatic explosion-proof ball valve actuator
| Model of actuator | GT, SR, ST, AT, AW series single and double acting pneumatic actuators |
|---|---|
| gas supply pressure | 0.4～0.7MPa |
| air source interface | G1/4"、G1/8"、G3/8"、G1/2" |
| ambient temperature | -30～+70℃ |
| mode of action | Single acting actuator: gas closed type (B) - valve position open when gas is lost (FO); Pneumatic opening (K) - valve position closed when gas is lost (FC) Double acting actuator: gas closed type (B) - valve position maintenance during gas loss (FL); Pneumatic opening (K) - valve position maintenance during gas loss (FL) |
| Can be equipped with accessories | Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc |
Adopting a new series of pneumatic actuators, including double acting and single acting (spring reset), gear rack transmission, safe and reliable; The large-diameter valve adopts a series of AW type pneumatic actuator fork type transmission, with a reasonable structure and large output torque, and is available in double acting and single acting types.
1. Gear type dual piston, with large output torque and small volume.
2. The cylinder is made of aluminum material, which is lightweight and aesthetically pleasing.
3. Manual operating mechanisms can be installed at the top and bottom.
4. The rack and pinion connection can adjust the opening angle and rated flow rate.
5. The actuator can be equipped with live signal feedback indicators and various accessories to achieve automated operation.
6. The IS05211 standard connection provides convenience for the installation and replacement of products.
7. The adjustable screws at both ends provide a ± 4 ° adjustable range for standard products between 0 ° and 90 °. Ensure synchronization accuracy with the valve.
5、 Main component materials of pneumatic explosion-proof ball valve
| Part Name | Material Name | |||
|---|---|---|---|---|
| valve body | WCB | 304(CF8) | 316(CF8M) | 316L(CF3M) |
| sphere | 2Cr13+nitriding treatment | 304 | 316 | 316L |
| valve stem | 2Cr13 | 304 | 316 | 316L |
| sealing ring | Polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para polystyrene, flexible graphite | |||
| Applicable Medium | Water, gas, steam, oil, etc | Corrosive media such as nitric acid | Acetic acid and other corrosive media | Corrosive media such as urea |
6、 Main performance specifications for pneumatic explosion-proof ball valves
| Nominal diameter DN (mm) | DN15-300 | |||||
|---|---|---|---|---|---|---|
| Nominal Pressure | PN(MPa) | 1.0 | 1.6 | 2.5 | 4.0 | 6.4 |
| Test pressure | strength test | 1.5 | 2.4 | 3.75 | 6.0 | 9.60 |
| Sealing Test | 1.1 | 1.76 | 2.75 | 4.4 | 7.04 | |
| Low pressure airtightness test | 0.5～0.7 | |||||
| Applicable Medium | Water, oil, steam, nitric acid (temperature ≤ 200 ℃), acetic acid (temperature ≤ 200 ℃) | |||||
7、 Selection of Pneumatic Explosion proof Ball Valve Products
(1) Valve body parameters: nominal diameter, working pressure, process medium, usage scenario, valve body material, and other series of parameters.
(2) Actuator parameters: actuator form, control mode, control signal (4-20mA, 1-5V), action mode (air open, air closed)
Please provide the above technical parameters in as much detail as possible to facilitate our company's operations and technical personnel to accurately select for you. If you have any questions You can call us and we will do our best to provide you with high-quality service!
