Description
Butterfly valve DNOVA GGG50-GGG40-EPDM 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-SA 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 4M310-08 24 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.
Basic technical data and characteristics of butterfly valves
| Parameter | Value |
| Nominal diameter DN, mm | 40 – 300 |
| Nominal pressure PN, bar | 16 |
| Flow direction | Bidirectional |
| Operating medium temperature, °C | -20 to +120 |
| Ambient temperature, °C | -20 to +100 |
| Shut-off tightness | Class A |
| Working medium | Cold and hot water, oil-free and grease-free air, stationary air conditioning, mildly aggressive media, other media neutral to material |
| Body material | Cast iron GGG50 |
| Disc material | Cast iron GGG40 |
| Pipeline connection | interflange |
| Control type | Handle |
| Average service life, years | 5 |
| Average cycle life (open/close cycles) | 20,000 (under non-aggressive media and average pressure and temperature conditions) |
Materials of parts of rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Cuff | EPDM |
| 3 | Disk | cast iron GGG40 |
| 4 | Stock | stainless steel SS 416/2Cr13 |
| 5 | Hairpin | stainless steel AISI 316L |
| 6 | Sleeve | NBR |
| 7 | Sealing ring | NBR |
| 8 | Fixing plate | carbon steel |
| 9 | Handle with lock | carbon steel |
Sketch of materials for rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
Technical characteristics of DNOVA-SA pneumatic actuators:
| Design | With return springs | |
| 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 SA:
| № | 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 24V:
| Design | spool type | |
| Nominal pressure PN, MPa (kg/cm2) | 1,2 (12) | |
| Operating 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 body | |
| 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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