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Fluorine-lined ball valve
Designed for automatic opening and closing control of various strongly corrosive medium pipelines. the pneumatic fluorine-lined ball valve is widely used in petroleum, chemical, dyeing, acid making and alkali making industries, and is one of the most ideal choices for anti-corrosion valve equipment at present. The pneumatic fluorine-lined ball valve is made of fluorine plastic lining, and the shell is precision cast by investment casting, with high strength and bright and clean appearance. the contact part with liquid is all fluorine plastic. therefore, the pneumatic fluorine-lined ball valve can be used in corrosive pipelines and pipelines with any concentration for a long time in the range of - 50 ℃ ~ 180 ℃.
| Nominal size DN(mm) |
15～300 | Actuator model | Gt, at, aw series single and double acting pneumatic actuators |
| Nominal pressure (MPa) |
PN1.0、1.6 MPa | Supply pressure | 0.4～0.7MPa |
| Body form | Two-stage valve body ( floating sphere, fixed sphere ) |
Air source interface | G1/4"、G1/8"、G3/8"、G1/2" |
| Connection form | Flange type | Ambient temperature | -30～+70℃ |
| Core form | " o" type spherical valve core | Action form | Single-acting actuator, double-acting actuator |
| Seal packing | (PTFE) | Action form | Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc. |
| Discharge characteristic |
Approximate quick opening type | It adopts a new type of pneumatic actuators, with double-acting and single-acting ( spring return ), rack and pinion drive, safe and reliable. Large diameter valves adopt series aw type pneumatic actuators fork-pull transmission, with reasonable structure, large output force, double-acting type and single-acting type. 1. gear type double piston, with large output torque and small volume. 2. the cylinder is made of aluminum-gold material, which is light in weight and beautiful in appearance. 3. manual operating mechanisms can be installed at the top and bottom. 4. rack type connection can adjust opening angle and rated flow. 5. the actuator can select live signal feedback instructions and accessories to realize automatic operation. 6. iso5211 standard connection provides convenience for installation and replacement of products. 7. the adjustable joint screws at both ends can make the standard product have an adjustable range of 4 between 0 and 90. Ensure the synchronization accuracy with the valve. |
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| Range of motion | 0～90° | ||
| Leakage Q | Soft seal: zero leakage | ||
| Applicable temperature |
PTFE≤180℃ | ||
| intrinsic error | With positioner: less than 2 % of total travel | ||
| dead zone | With positioner: less than 2 % of total travel | ||
| adjustable extent | 250：1 | ||
| Configuration actuator |
Gt, at, ST, aw series single and double acting pneumatic actuators |
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| Control mode | Switch two-position control, 4 - 20ma analog control |
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| Actuator model | Gt, Sr, ST, at, aw series single and double acting pneumatic actuators |
| Supply pressure | 0.4～0.7MPa |
| Air source interface | G1/4"、G1/8"、G3/8"、G1/2" |
| Ambient temperature | -30～+70℃ |
| Action form | Single acting actuator: air shutoff type ( B ) - valve position open (FO ) when air is lost; Air opening ( K ) - valve position closing (FC ) in case of air loss Double - acting actuator: air shutoff type (B) - valve position maintenance (FL ) in case of air loss; Air open type ( K ) - valve position maintenance during air loss ( FL) |
| Accessory | Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc. |
| Part name | Material | |||
| Body 、bonnet | WCB+F46 | 304(CF8)+F46 | 316(CF8M)+F46 | 316L(CF3M)+F46 |
| Ball | 2Cr13+nitridation treatment+46 |
304+46 | 316+46 | 316L+46 |
| stem | 2Cr13+46 | 304+46 | 316+46 | 316L+46 |
| Seat seal ring | PTFE、carbon fiber＋PTFE | |||
| Seal packing | V - shaped PTFE filler | |||
Product selection of pneumatic fluorine lined ball valve
( 1 ) valve body parameters: nominal diameter, working pressure, process medium, use occasion, 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 )
Provide the above technical parameters in detail as far as possible, so as to facilitate our company's operation and technical personnel to accurately select the type for you. If you have any questions, you can call us and we will do our best to provide you with quality service!
