How it works
Spring-return rotary actuator
Three-way L-port ball
Limit-switch box
Construction
Parts and materials
Ball valve DNOVA is used as a shut-off valve in heat and water supply systems, in steam, fuel and pneumatic systems with compressed air and neutral gases. Installation of valves of this series is possible in systems transporting liquid and gaseous media (water, oil, oils, steam, air, alcohols, glycol, etc.) that are not aggressive to valve materials.
Pneumatic rotary actuators are designed for automation of control process of industrial shut-off valves - gates, ball valves. Pneumatic actuators DNOVA 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 characteristics of ball valves DNOVA BV3232P-SP-3WL-T-ISO 16 bar, coupling with ISO flange with pneumatic actuators DNOVA PA-SA-1 and LSU APL-410N EX:
|
Nominal diameter DN, mm |
10–100 |
|
Working pressure PN, bar |
63/40 |
|
Working environment temperature t, °C |
From -20 to +200 |
|
Working medium |
Water, steam, petroleum products and other liquid or gaseous media neutral to valve materials |
|
Pipeline connection |
Threaded |
|
Type of flow cross-section |
Standard bore |
|
Control type |
Manual (handle) |
|
Additional |
Installation of electric or pneumatic actuator is possible (ISO 5211-2001) |
Materials of ball valves DNOVA BV3232P-SP-3WL-T-ISO 16 bar, coupling with ISO flange with pneumatic actuators DNOVA PA-SA-1 and LSU APL-410N EX:
|
№ |
Part name |
Material |
Quantity |
|
1 |
Cover |
SS316 |
3 |
|
2 |
Seat rings |
PPL |
4 |
|
3 |
Connection gasket |
PTFE/RPTFE |
3 |
|
4 |
Thrust washer |
PTFE/RPTFE |
1 |
|
5 |
Seal |
PTFE |
1 |
|
6 |
Stem |
SS304 / SS316 |
1 |
|
7 |
Gland |
SS304 |
1 |
|
8 |
Ball |
S304 / S316 |
1 |
|
9 |
Body |
SS316 |
1 |
Technical data of 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, °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:
| № | 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 | Sealing ring | NBR |
| 23 | Sealing ring | NBR |
| 24 | Bearing | stainless steel |
| 25 | Adjustment nut | stainless steel |
| 26 | Adjustment screw | stainless steel |
| 27 | Bushing | aluminum |
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 |
- Port opening
- standard bore
- Body material
- Stainless steel AISI 316
- Connection type
- Threaded
- Control type
- Pneumatically actuated
- Type of seal
- PTFE
- Explosion-proof
- have
- Torque
- 2 Nm
- Limit switches
- have
- Type of pneumatic actuator
- spring loaded
- 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