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Shanghai Yuhu Self Control Valve Co., Ltd
Q644/45F Pneumatic Three way Ball Valve
NegotiableUpdate on 04/07
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Overview
Q644/45F Pneumatic Three way Ball Valve Pneumatic Three way Ball Valve (Stainless Steel Body) Pneumatic Three way Ball Valve (Carbon Steel Body) I. Overview of Pneumatic Three way Ball Valve Products The pneumatic three way ball valve produced by Shanghai Yuhu Company is a three channel rotary ball valve used for medium diversion, merging, and flow direction switching. Any pipeline can be used as an inlet or outlet
Product Details
Q644/45F Pneumatic Three way Ball Valve
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| Pneumatic three-way ball valve (stainless steel valve body) | Pneumatic three-way ball valve (carbon steel valve body) |
1、 Overview of Pneumatic Three way Ball Valve Products
The pneumatic three-way ball valve produced by Shanghai Yuhu Company is a three channel rotary ball valve used for medium diversion, merging, and flow direction switching. Any pipeline can be used as an inlet or outlet. Pneumatic three-way ball valves are divided into two types: pneumatic three-way L-shaped ball valves and pneumatic three-way T-shaped ball valves, which can meet different business process requirements. Pneumatic three-way L-shaped ball valve is used to cut off two of the three pipelines, while pneumatic three-way T-shaped ball valve is used to merge and divert the three connected pipelines. The pneumatic three-way ball valve is matched with an electrical valve positioner, and can be controlled by inputting a 4-20mADC signal and a 0.4-0.7MPa gas source to adjust parameters such as pressure, flow rate, temperature, and liquid level. It is also equipped with a travel limit switch, solenoid valve, pressure reducing valve, and 0.4-0.7MPa gas source to achieve switch operation, and sends two pairs of passive contact signals to indicate the switch of the valve. Pneumatic three-way ball valves are widely used in industrial fields such as chemical, petroleum, textile, power, food and pharmaceutical, refrigeration, aviation, aerospace, papermaking, etc.
2、 Product features of pneumatic three-way ball valve
(1) The fluid resistance is small, and its resistance coefficient is equal to that of a pipe segment of the same length.
(2) Simple structure, small size, and light weight.
(3) Tight and reliable, plastic is widely used as the sealing surface material for ball valves with good sealing performance, and it has also been widely used in vacuum systems.
(4) Easy to operate, quick opening and closing, only need to rotate 90 ° from fully open to fully closed, making it convenient for remote control.
(5) Easy to maintain, ball valve structure is simple, and the sealing ring is generally movable, making disassembly and replacement relatively convenient.
(6) When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and when the medium passes through, it will not cause erosion of the sealing surface of the pneumatic three-way ball valve.
(7) Widely applicable, with diameters ranging from a few millimeters to several meters, suitable for applications from high vacuum to high pressure.
3、 Main technical parameters of pneumatic three-way ball valve
| Nominal diameter DN (mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Allowable pressure difference (MPa) | ≤ nominal pressure | |||||||||||
| Action range | 0～90°； 0～180° | |||||||||||
| Valve body form | Two stage split casting valve body | |||||||||||
| Valve cover form | monolithic | |||||||||||
| Cover type | Bolt compression type | |||||||||||
| sealing packing | V-shaped PTFE packing, PTFE impregnated asbestos packing, asbestos textile packing, graphite packing | |||||||||||
| connection method | Flange type, threaded type (suitable for 1/2 "~2") | |||||||||||
| Valve core form | Three way ball valve core | |||||||||||
| flow characteristics | Approximate fast opening characteristic | |||||||||||
| Leakage quantity Q | Soft seal: zero leakage; Metal seal: According to GB/T4213-92, less than 0.01% of rated KV | |||||||||||
| Configure actuator model | 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 three-way ball valve actuator
| Model of actuator | GT, SR, ST, AT, AW series single and double acting pneumatic actuators |
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| 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 |
5、 Main component materials of pneumatic three-way ball valve
| Part Name | material | |||
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| valve body | WCB | 304(CF8) | 316(CF8M) | 316L(CF3M) |
| sphere | 2Cr13+nitriding treatment | 304 | 316 | 316L |
| valve stem | 2Cr13 | 304 | 316 | 316L |
| valve seat seal ring | PTFE (polytetrafluoroethylene), PPL (para polystyrene), metal seal (hard alloy) |
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| filler | V-shaped PTFE PTFE PTFE packing, flexible graphite | |||
6、 Control mode of pneumatic three-way ball valve
Pneumatic three-way ball valves are divided into L-shaped and T-shaped, and the direction of medium flow is shown in the following figure. Pneumatic three-way L-shaped ball valves are suitable for switching the flow direction of media and can connect two perpendicular channels. Pneumatic three-way T-shaped ball valves are suitable for dividing, merging, or switching the flow direction of media. The T-shaped hole can connect three channels to each other or two of them. Pneumatic three-way ball valves generally adopt a three seat structure, and can also adopt a four seat structure according to user requirements.
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| Schematic diagram of flow direction of "T" type pneumatic three-way ball valve | Schematic diagram of flow direction of "L" type pneumatic three-way ball valve |
7、 Selection of Pneumatic Three way 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!
