How it works
Double-acting rotary actuator
Butterfly disc
5/2 single-solenoid pilot
Limit-switch box
The number that matters
Nominal pressure
16bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
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.
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 double-acting pneumatic actuator DNOVA DA and pneumatic distributor 4M310-08 220V and limit switch:
|
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 double-acting pneumatic actuator DNOVA DA and pneumatic distributor 4M310-08 220V and limit switch:
| № | 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, °C | • 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 the pneumatic distributor 4M310-08 NAMUR
| Design | Spool-type |
| Test pressure (body strength test. Not for operation!), bar | 10 |
| Working pressure (recommended range for normal operation), bar | 1.5 ÷ 8 |
| Valve type | 5/2 five-port, two-position |
| Working medium | purified air (40 µm filter fineness) |
| Operating temperature, °C | 0 to +60 |
| Actuation frequency | 5 cycles per second |
| Manual override | yes |
| Protection rating/insulation class | IP65/F |
| Connection to pneumatic actuator | NAMUR-compliant mounting surface (VDI/VDE3845) |
| Body material | anodized aluminum |
| Effective cross-sectional area, mm2 | 25 (Cv = 1.4) |
| Exhaust port dimensions (vent to atmosphere) | 2 - PT1/4” |
| Air inlet port size (to pneumatic valve) | G1/4” |
| Air outlet port size (to pneumatic actuator) | 2 x Ø19.2 mm |
| Response time, sec | 0.05 |
| Supply voltage, V | 220AC/24DC |
| Coil power | 220VAC – 5.5 VA/24VDC – 4.8 W |
| Weight, kg | 0.35 |
| Average service life, cycles | 10,000,000 |
Overall and installation dimensions of the pneumatic distributor 4M310-08 NAMUR
| A | C | D | E | F | G | H | I | K | L | J | N | M |
| mm | ||||||||||||
| 40 | 24 | 28 | 32 | 40 | 21,5 | 69 | 45 | 17,5 | 135 | 29,3 | 40 | 27 |
Sketch of the dimensions of the pneumatic distributor 4M310-08 NAMUR
Basic materials and parts of the pneumatic distributor 4M310-08 NAMUR
| № | Part Name | Material |
| 1 | Connector | Engineering plastic |
| 2 | Nut | POM + carbon steel |
| 3 | Coil | Copper |
| 4 | Control Elements | — |
| 5 | Plate | Carbon steel |
| 6 | Piston | POM |
| 7 | Control Valve Seat | Engineering plastic |
| 8 | Valve Body | Aluminum alloy |
| 9 | Spool | Aluminum alloy |
| 10 | O-Ring Seal | HNBR |
| 11 | Rear Cover | Engineering plastic |
| 12 | Filter | Synthetic material |
| 13 | Piston | POM |
| 14 | Spring | Stainless steel |
| 15 | Manual Override | Engineering plastic |
| 16 | Rear Seat | Aluminum alloy |
| 17 | Spring Seat | Aluminum alloy |
| 18 | Type C Towing Shackle | 65Mn |
Sketch of the dimensions of the pneumatic distributor 4M310-08 NAMUR
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
- Body material
- Stainless steel AISI 316
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Voltage
- 220V
- Valve feedback
- Limit switches
- Explosion-proof
- Yes
- Torque
- 59 Nm
- Pneumatic actuator
- Yes
- Manual override
- No
- Limit switches
- Yes
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal