Description
Butterfly valve WBV3232N-2W-Fb PA-SA APL-510N-EX is designed for use as shut-off or regulating valves for flow control in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries.
SA pneumatic actuators are designed for automation of control process of industrial shut-off valves - gates, ball valves. Pneumatic actuators are designed for operation both indoors and outdoors. All internal and external parts are anticorrosive coated.
APL-510N-EX limit switch unit is an electrotechnical device designed to open and close the working circuit and to visualize the positions of the shut-off body of pipeline valves. In a sealed box, as a rule, there are two mechanical switches designed for voltage up to 250 V, which monitor the position of the actuator stem and signalize in extreme positions. They are mounted on top of the actuator surface. In the upper part of the limit switch unit there is a two-color visual indicator hemisphere. If the connected pipe fitting is closed, only the red part of the hemisphere labeled CLOSED is visible; if it is open, only the yellow part labeled OPEN is visible. This visual indicator is clearly visible from a distance, which simplifies the inspection of the equipment, and the color difference between the open and closed position reduces the probability of misinterpretation of information. Due to the use of the BCV it Weightomes possible to transmit information on the position of pipeline valves (open/closed) to automated control systems, which allows to increase the reliability of the system as a whole and simplifies diagnostics in case of fault detection.
Technical parameters of DNOVA WBVV3232N-2W-Fb-H water disc gate valves, body material - stainless steel AISI 316L, disc material - stainless steel AISI 316L, sealing - NBR, with pneumatic actuator with return springs PA-SA, LSU APL-510N-EX:
| Nominal diameter DN, mm | 40 - 300 |
| Nominal pressure PN, MPa (kg/cm2) | 1,6 (16) |
| Flow direction | bilateral |
| Working medium temperature t, ⁰C | -20 to +85 for NBR -20 to +120 for EPDM -10 to +180 for PTFE |
| Working medium | EPDM: cold and hot water, air without oil and grease, other media neutral to the material PTFE: water, alkalis, acids, solvents and oxidizing agents NBR: water, mineral oils, hydrocarbons, oils, fats |
| Connection to pipeline | interflange |
Gate WBV3232N-2W-Fb PA-SA APL-510N-EX
Materials DNOVA WBV3232N-2W-Fb-H water disc gate valve, body material - stainless steel AISI 316L, disc material - stainless steel AISI 316L, seal - NBR, pneumatically operated with return springs PA-SA, LSU APL-510N-EX:
| № | Name | Material |
| 1 | Housing | WCB steel or AISI 316L stainless steel |
| 2 | Cuff | EPDM, PTFE, NBR |
| 3 | Disc | AISI 316L stainless steel |
| 4 | Rod | SS 416/2Cr13 stainless steel |
| 5 | Pin | AISI 316L stainless steel |
| 6 | Bushing | EPDM |
| 7 | Sealing ring | EPDM |
| 8 | Fixing plate | carbon steel |
Sketch of detailing of gate WBV3232N-2W-Fb PA-SA APL-510N-EX
Technical data of SA pneumatic actuators
| Design | with return springs |
| Nominal pressure PN, bar | 12 |
| Working pressure, bar | 2...8 |
| Working medium | Filtered compressed air or non-aggressive gases, oils |
| Maximum particle diameter | less than 30 µm2 |
| Operating temperature t, ⁰C | - 20 to +80 - 40 to +80 (low temperature version) - 20 to +160 (in dry air) |
| Adjustment range | ± 5 ° for rotation at 0 ° and 90 ° |
| Manual override | is |
| Position indicator | open/closed |
| Operating environment | indoors and outdoors. (All internal and external parts are anti-corrosion coated) |
Materials of SA pneumatic actuator parts:
| № | Name | Material |
| 1 | Enclosure | extruded aluminum |
| 2 | Side plugs | cast aluminum |
| 3 | Gear | stainless steel |
| 4 | Piston | steel/aluminum |
| 5 | Plugs | stainless steel |
| 6 | Piston ring | NBR |
| 7 | Springs | spring steel |
| 8 | Piston bearing | engineering plastic |
| 9 | Piston ring | NBR |
| 10 | Plug | NBR |
| 11 | Thrust ring | engineering plastic |
| 12 | Ring | engineering plastic |
| 13 | Washer | stainless steel |
| 14 | Spring clip | stainless steel |
| 15 | Indicator | plastic |
| 16 | Indicator housing | plastic |
| 17 | Bearing | engineering plastic |
| 18 | Cam | steel |
| 19 | Bearing | NBR |
| 20 | Bearing | engineering plastic |
| 21 | Bearing | engineering plastic |
| 22 | Sealing ring | NBR |
| 23 | Sealing ring | NBR |
| 24 | Bearing | stainless steel |
| 25 | Adjustment nut | stainless steel |
| 26 | Adjustment screw | stainless steel |
| 27 | Sleeve | aluminum |
Material sketch of SA pneumatic actuator
Characteristics of limit switch unit APL-510N-EX:
| Parameter | Significance |
| Enclosure | all-weather IP67/ NEMA4 4X,7,9 explosion-proof E EX d IIC T6 |
| Compatible devices | quarter-turn pneumatic actuators; - any actuators with shaft rotation by 90 |
| Full rotation angle | 90° |
| Cable glands | 2 x NPT 3/4” |
| Electrical connection | screw terminals 8 points (0.08 - 2.5) mm2 |
| Cable gland thread | 2 x NPT 3/4” |
| Type of visual indicator | two-color hemisphere: OPEN (Open) - yellow CLOSED (Closed) - red |
| Switches/sensors | two mechanical switches two proximity sensors |
| Rated voltage, V | 250 |
| Rated current, A | 16 |
| Permissible ambient temperature, °C | -20 to +66 |
| Average life, cycles | 10 000 000 |
| Weight, kg | 1.8 |
Specifications
Delivery
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