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E-mail
sales@shyuhu.com
- Phone
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Address
No. 6898 Linhai Road, Qinggang Industrial Park, Fengxian District, Shanghai
Shanghai Yuhu Self Control Valve Co., Ltd
sales@shyuhu.com
No. 6898 Linhai Road, Qinggang Industrial Park, Fengxian District, Shanghai
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| Internal thread pneumatic ball valve (two-way standard type) |
The internal thread pneumatic ball valves produced by Shanghai Yuhu Company are divided into integral, two-piece, and three piece types. The valve body casting adopts advanced technology introduced from Taiwan, with a reasonable structure and beautiful appearance. The valve seat adopts an elastic sealing structure, which is reliable in sealing and easy to open and close. The internal thread pneumatic ball valve stem adopts a bottom mounted structure with reverse sealing, and the stem will not be impacted when the valve chamber is abnormally pressurized. A 90 ° switch positioning mechanism can be set, and locks can be added as needed to prevent accidental operation. Internal threaded pneumatic ball valves and pneumatic welded ball valves are suitable for various pipelines with PN ranging from 1.0 to 4.0 MPa and working temperatures of -29 to 180 ℃ (with reinforced polytetrafluoroethylene sealing ring) or -29 to 300 ℃ (with polystyrene sealing ring). They are used to cut off or connect media in pipelines. Different materials are selected, and internal threaded pneumatic ball valves can be used for various media such as water, steam, oil, nitric acid, acetic acid, ammonium salt water, and neutral water.
| Nominal diameter DN (mm) | 10~100 | Model of actuator | GT and AT series single and double acting pneumatic actuators |
|---|---|---|---|
| Nominal pressure (MPa) | PN1.6、2.5、4.0、6.4 MPa | gas supply pressure | 0.4~0.7MPa |
| Valve body form | Three piece precision cast valve body, two-piece precision cast valve body | air source interface | G1/4"、G1/8"、G3/8"、G1/2" |
| connection type | Threaded and welded | ambient temperature | -30~+70℃ |
| Valve core form | O-shaped spherical valve core | mode of action | Single acting actuator, double acting actuator |
| Sealing packing | PTFE、 flexible graphite | Can be equipped with accessories | Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc |
| flow characteristics | Approximate quick opening type |
Adopting a new type of pneumatic actuator, with double acting and single acting (spring reset), gear rack transmission, safe and reliable; The large-diameter valve adopts a series of AW type pneumatic actuators with fork type transmission, with a reasonable structure and high output force, and is available in double acting and single acting types. |
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| Action range | 0~90° | ||
| Leakage quantity Q | According to GB/T4213-92, less than 0.01% of rated KV (soft seal: zero leakage) | ||
| Basic error | Equipped with locator: less than ± 2% of the full stroke | ||
| dead zone | Equipped with locator: less than 2% of the full stroke | ||
| adjustable range | 250:1 | ||
| Configure execution mechanism | GT, AT, AW series single and double acting pneumatic actuators | ||
| Control method | Two position switch control, 4-20mA analog control | ||
| 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 | Enhanced polytetrafluoroethylene (PPL), para polystyrene, stainless steel sealing ring | |||
| Applicable Medium | Water, gas, steam, oil, etc | Corrosive media such as nitric acid | Acetic acid and other corrosive media | Corrosive media such as urea |
| 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 ℃) | |||||
(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!