
How it works
Double-acting rotary actuator
Two-way ball valve
5/2 single-solenoid pilot
Limit-switch box
The number that matters
Max. medium temperature
230°C
The highest medium temperature this valve is rated for.
Construction
Parts and materials
Applications
Media and industries
- Water
- Steam
- Oil Products
- Liquid Media
- Neutral Media
- Gaseous Media
Ball valves are used as shut-off valves 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.) not aggressive to valve materials.
Pneumatic actuators PA-DA 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.
DNOVA APL-510N-EX limit switch box is an electrotechnical device designed to open and close the working circuit and to visualize the positions of the shut-off body of pipeline valves. In a sealed box, as a rule, there are two mechanical switches designed for voltage up to 250 V, which monitor the position of the actuator stem and signalize in extreme positions. They are mounted on top of the actuator surface. In the upper part of the limit switch unit there is a two-color visual indicator hemisphere. If the connected pipe fitting is closed, only the red part of the hemisphere labeled CLOSED is visible; if it is open, only the yellow part labeled OPEN is visible. This visual indicator is clearly visible from a distance, which simplifies the inspection of the equipment, and the color difference between the open and closed position reduces the probability of misinterpretation of information. Thanks to the use of limit switch units, it Weightomes possible to transmit information on the position of pipeline valves (open/closed) to automated control systems, which increases the reliability of the system as a whole and simplifies diagnostics in case of malfunction detection.
Technical characteristics of ball valves DNOVA BV3232P(2pc)-FP-T-ISO-H threaded, full bore, body - stainless steel SS316, seal - PTFE, with pneumatic actuator DNOVA PA-DA 052-105 pneumatic distributor 4M310-08 24V limit switch unit APL-510N-EX:
|
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, air without oil and grease, 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) |
Materials of ball valves DNOVA BV3232P(2pc)-FP-T-ISO-H threaded, full bore, body - stainless steel SS316, seal - PTFE, with pneumatic actuator DNOVA PA-DA 052-105 pneumatic distributor 4M310-08 24V limit switch unit APL-510N-EX:
|
№ |
Part name |
Material |
|
1, 6 |
Body |
Stainless steel SS316 |
|
2, 4 |
Ball seal |
PTFE |
|
3 |
Ball |
Stainless steel SS316 |
|
5 |
Sealing ring |
PTFE |
|
7 |
Stem |
Stainless steel SS316 |
|
8 |
Stem seal |
VITON |
|
9 |
Stem nut |
Stainless steel SS316 |

Dimensions and installation sizes of ball valves DNOVA BV3232P(2pc)-FP-T-ISO-H threaded, full bore, body - stainless steel SS316, seal - PTFE, with pneumatic actuator DNOVA PA-DA 052-105 pneumatic distributor 4M310-08 24V limit switch unit APL-510N-EX
| DN | D | L | H2 | L1 | H |
| 10 | 10 | 63 | 34 | 153 | 98 |
| 15 | 15 | 58 | 37 | 153 | 98 |
| 20 | 20 | 66 | 40 | 153 | 98 |
| 25 | 24 | 72 | 54 | 153 | 98 |
| 32 | 32 | 83 | 60 | 153 | 98 |
| 40 | 38 | 95 | 70 | 216 | 135 |
| 50 | 49 | 110 | 68 | 216 | 135 |
| 65 | 64 | 147 | 94.5 | 216 | 135 |
| 80 | 76 | 169 | 103.5 | 279 | 160 |
| 100 | 98 | 204 | 122 | 279 | 160 |

Technical data of pneumatic actuators PA-DA
| 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) | |

Materials of pneumatic actuator parts PA-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 | 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 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
Characteristics of limit switch unit APL-510N-EX:
| Parameter | Value |
| Body | weatherproof IP67/ NEMA4 4X,7,9 explosion-proof E EX d IIC T6 |
| Compatible devices | - quarter-turn pneumatic actuators; - any actuators with a 90° shaft rotation |
| Full swivel angle | 90° |
| Cable glands | 2 x NPT 3/4” |
| Electrical connection | Screw terminal clamps, 8 points (0.08 – 2.5 mm²) |
| Cable entry thread | 2 x NPT 3/4” |
| Type of visual indicator | two-color hemisphere: OPEN (Open) - yellow CLOSED (Closed) - red |
| Switches/sensors | two mechanical switches two proximity sensors |
| Nominal voltage, V | 250 |
| Nominal current, A | 16 |
| Permissible ambient temperature, °C | from -20 to +66 |
| Average life, cycles | 10 000 000 |
| Weight, kg | 1.8 |
Passports and certificates
Data sheet for DNOVA DA/SA double-acting pneumatic actuator with return springs
- Port opening
- full bore
- Body material
- Stainless steel AISI 316
- Maximum allowable temperature
- 230 °C
- Connection type
- Threaded
- Control type
- Pneumatically actuated
- Operating environment
- Water, Steam, Oil Products, Liquid Media, Neutral Media, and Gaseous Media
- Type of seal
- PTFE
- Voltage
- 24 V
- Explosion-proof
- have
- Torque
- 4 Nm
- Limit switches
- have
- Type of pneumatic actuator
- double action
- 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