Description
Butterfly valves DNOVA GG25-316L-NBR 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 to automate the process of controlling 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.
Limit switch unit 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 GREEN-OPEN.
Manual doubleturn actuator with disengaging clutch DNOVA HDM allows to manually set the required positioning of valves, dampers and other quarter-turn devices when replacing pneumatic, electric or hydraulic quarter-turn actuators. Suitable for both indoor and outdoor installation. The modular design of the manual override is intended to provide the most efficient and effective solution to the full range of manual override applications.
The air treatment unit AFC2000 is designed to clean compressed air from moisture and solid particles, remove condensate, automatically maintain the pressure at a preset level, supply lubricant from a reservoir in the compressed air flow to the pneumatic system elements with a large capacity range from 500 liters/minute to 10,000 liters/minute. The lubricator (oil atomizer) adds oil with a viscosity of 32 mm²/s (=cSt) at 40°C to the pneumatic system for further lubrication of the control components - pneumatic cylinders and pneumatic valves.
Technical parameters of water butterfly valve DNOVA gg25-316l-nbr-DNOVA-da-4m310-24-apl210n-hdm-afc2000, body material - cast iron GG25, disk material - stainless steel AISI 316L, seal - NBR, pneumatic actuator operated:
|
Nominal diameter DN, mm |
40–300 |
|
Operating pressure PN, bar |
16 |
|
Working medium temperature t, °C |
From -20 to +90 |
|
Working medium |
Water, mineral oils, hydrocarbons, oils, fats |
|
Flow direction |
Two-way |
|
Body material |
Cast iron GG25 |
|
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 pneumatic valve 4M310-08 24V:
| 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. |
Main parameters of the limit switch unit:
|
Value |
Execution |
Option |
|
Maximum current |
5 A |
- |
|
Maximum voltage |
250 V |
- |
|
Explosion protection |
No |
- |
|
Protection |
Weatherproof IP65 |
IP67 |
|
Ambient temperature |
From -40°C to +80°C |
From -50°C to +80°C |
|
Cable gland thread |
2 x NPT1/2” |
PF1/2′′, P1/2′′M20x15, PG13.5 |
|
Terminal block |
8 cells 0.08-2.6mm2 |
- |
|
Indicator position |
CLOSED: red OPEN: green |
CLOSED: red OPEN: yellow |
|
Sensor |
2 SPDT electromechanical microswitches OMRON V151-1C25 |
2 inductive sensors NPN, 2 Namur non-contact switches |
|
External coating |
Polyester coating (black) |
Red, green, yellow, blue colors |
|
Shaft |
Standard shaft (17mm) |
Extended shaft |
Main parameters of manual doublers:
| Model | Gear ratio | Torque, Nm | Weight, kg |
| HDM-1 | 26:1 | 250 | 3,0 |
| HDM-2 | 28:1 | 450 | 4,5 |
| HDM-3 | 38:1 | 700 | 6,9 |
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, ⁰C | 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 |
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
Please feel free to reach out to us for any questions or further assistance regarding your order.