Description
Butterfly valve DNOVA 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.
Pneumatic rotary actuators DNOVA-DA are designed for automation of control process of industrial shut-off valves - gates, ball valves. DNOVA-DA pneumatic actuators are designed for operation both indoors and outdoors. All internal and external parts are anticorrosive coated.
Pneumatic valves 4M310-08 220 V are used for control in pneumatic systems that have a NAMUR docking surface, to install the valves through holes in the housing.
Limit switch unit APL-410N EX is designed for visual and electrical signaling of valve end positions. It is mounted on top of the pneumatic actuator surface and connected to the actuator shaft - DIN standard. The sealed box usually contains two sensors which monitor the position of the actuator shaft and signalize the end positions. Visual indication of the position can be observed on the body of the unit there is a 3D visual indicator RED-CLOSED and YELLOW-OPEN.
Technical parameters of water butterfly valve DNOVA 316L-316L-EPDM body material - stainless steel aisi 316l, disk material - stainless steel AISI 316L, seal - EPDM with pneumatic actuator DNOVA DA, with pneumatic distributor 4M310-08 220V, limit switch block APL-410N EX:
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Nominal diameter DN, mm |
40 – 300 |
|
Nominal pressure PN, bar |
16 |
|
Flow direction |
Two-way |
|
Ambient temperature t, °C |
From -20 to +85 for NBR From -20 to +120 for EPDM From -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, greases |
|
Connection to pipeline |
Interflange |
|
Type of control |
Handle |
Materials of water butterfly valve DNOVA 316L-316L-EPDM body material - stainless steel aisi 316l, disk material - stainless steel AISI 316L, seal - EPDM with pneumatic actuator DNOVA DA, with pneumatic distributor 4M310-08 220V, limit switch block APL-410N 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 specification water Butterfly Valve DNOVA
Technical characteristics of DNOVA-DA pneumatic actuators:
| Design | Double-acting | |
| Nominal pressure PN, bar | 12 | |
| Operating pressure, bar | 2…8 | |
| Operating medium | Filtered compressed air or non-aggressive gases, oils | |
| Maximum particle diameter | less than 30 µm2 | |
| Operating temperature t, ⁰C | • from -20 to +80 • from -40 to +80 (low-temperature version) • from -20 to +160 (in dry air) |
|
| Adjustment range | ± 5° for rotation at 0° and 90° | |
| Manual duplication | yes | |
| Position indicator | open/closed | |
| Operating environment | indoors and outdoors. (All internal and external parts have an anti-corrosion coating) | |
Pneumatic actuator component materials DNOVA DA:
| № | Name | Material |
| 1 | Body | extruded aluminum |
| 2 | Side caps | 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 body | plastic |
| 17 | Bearing | engineering plastic |
| 18 | Cam | steel |
| 19 | Bearing | NBR |
| 20 | Bearing | engineering plastic |
| 21 | Bearing | engineering plastic |
| 22 | O-ring | NBR |
| 23 | O-ring | NBR |
| 24 | Bearing | stainless steel |
| 25 | Adjustment nut | stainless steel |
| 26 | Adjustment screw | stainless steel |
| 27 | Bushing | aluminum |
Technical characteristics of pneumatic valve 4M310-08 220V:
| Design | spool type |
| Nominal pressure PN, MPa (kg/cm2) | 1,2 (12) |
| Working pressure, bar | 1,5…8 |
| Operating medium | filtered compressed air |
| Ambient temperature t, ⁰C | from +5 to +50 |
| Response frequency | 5 cycles/second |
| Manual duplication | yes |
| Degree of protection | IP 65 |
| Fastening | through holes in the housing |
| Body material | anodized aluminum |
| Response time | 0.05 sec. |
Technical characteristics of limit switch unit APL-410N EX:
| Body | all-weather IP65 explosion-proof Exd IIB T6 |
| Cable glands | 2 x NPT1/2” |
| Terminal strips | 8 points (0.05 - 2.5) mm2 |
| Position indicator | 0 - 90° (90° free rotation) CLOSED - red; OPEN - yellow |
| Switches/sensors | two mechanical switches two proximity sensors |
| Nominal voltage, V | 250 |
| Permissible ambient temperature, °C | from -25 to +80 |
| Service life, years | 10 |
Materials of limit switch unit APL-410N EX:
| Name | Materials |
| Enclosure cover and body | die-cast aluminum |
| Shaft | stainless steel |
| Indicator cover | polycarbonate |
| Cam | polycarbonate |
| Spring | stainless steel |
| Enclosure cover bolts | stainless steel |
| O-ring | NBR |
| Bushing | bronze |
| Sealing ring (shaft) | stainless steel |
| Ground terminal | stainless steel |
| Indicator | ABS plastic / polycarbonate |
| Bracket | stainless steel |
Passports and certificates
Data sheet for DNOVA DA/SA double-acting pneumatic actuator with return springs
Specifications
Delivery
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