How it works
Spring-return rotary actuator
Butterfly disc
5/2 single-solenoid pilot
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 valves DNOVA al-316l-epdm are designed for use as shut-off or regulating valves for flow control in heat and water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries. Butterfly valves should be installed only between collar flanges.
Pneumatic double-acting rotary actuators and pneumatic rotary actuators with return springs are designed for automation of control process of industrial shut-off valves - gates, ball valves. DNOVA pneumatic actuators are designed for operation both indoors and outdoors. All internal and external parts are anticorrosive coated.
Pneumatic valves are used for control in pneumatic systems with NAMUR docking surface, to install the valves through holes in the housing.
AFC2000 DNOVA air treatment units are designed to clean compressed air from moisture droplets and solid particles, remove condensate, automatically maintain the pressure at the set level, supply lubricant from the tank in the compressed air flow to the elements of the pneumatic system with a large capacity range from 500 liters/minute to 10 000 liters/minute. The lubricator adds oil with a viscosity of 32 mm²/s (=cSt) at 40°C to the pneumatic system for further lubrication of control components such as pneumatic cylinders and pneumatic valves.
Technical parameters of water butterfly valve DNOVA al-316l-epdm-DNOVA-sa-4m310-24-afc2000, body material - aluminium alloy, disk material - stainless steel AISI 316L, seal - EPDM, pneumatic actuator operated:
|
Nominal diameter DN, mm |
25–32 |
|
Operating pressure PN, bar |
16 |
|
Working medium temperature t, °C |
From -20 to +120 |
|
Working medium |
Cold and hot water, oil-free and grease-free air, other media neutral to the material |
|
Flow direction |
Two-way |
|
Body material |
Aluminum alloy |
|
Type of control |
Manual (handle) |
|
Additional option |
Electric or pneumatic actuator installation possible (ISO 5211-2001) |
|
Nominal pressure PN, MPa (kg/cm²) |
1.2 (12) |
|
Operating pressure, bar |
2–8 |
|
Working medium |
Filtered compressed air or non-aggressive gases, oils |
|
Maximum particle diameter |
Less than 30 µm² |
|
Operating temperature, °C |
-20 to +80 |
|
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 are anti-corrosion coated) |
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 the AFC2000 air supply unit:
| Operating pressure, bar | 8 |
| Maximum pressure, bar | 10 |
| Adjustable pressure range, bar | 0,5 ÷ 9 |
| Fracture pressure, bar | 15 |
| Air connection | 1/4" |
| Operating temperature, °C | from -5 to +60 |
| Size of filtered particles, µm | 40 |
| Oil viscosity | ISO VG 32 |
| Weight, kg | 0,395 |
| Set contents | filter-moisture separator, pressure regulator, lubricator, bracket |
- Body material
- Aluminium alloy
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Voltage
- 24V
- Valve feedback
- No
- Explosion-proof
- No
- Torque
- 25 Nm
- Pneumatic actuator
- Yes
- Manual override
- Yes
- Limit switches
- No
- 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