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IP 68 Ocean Gear

All drive series are hermetic
Encapsulation according to IP 68 for permanent underwater use up to water depth
from serial 100 m available.

Upgrade for TA 70, TA 120, TA 130 and TA 140IP 68 Ocean Gear

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Product description

The drive series TA 70, TA 120, TA 130 and TA 140 are available in hermetic enclosure according to IP 68 for permanent underwater operation up to a water depth of 100 m. The IP 68 Oceangear series is therefore the first choice in system areas that are permanently, occasionally or only rarely flooded. Hermetic encapsulation according to IP 68 can also be recommended for installations above canals, water basins or other areas where heavy evaporation is to be expected, as well as in areas where strong temperature fluctuations can lead to condensation forming in housings.

Advantages

  • Hermetic encapsulation
  • Can be used serially up to 100 m water depth
  • Operational safety at 100 % humidity
  • Housing also in stainless steel
  • Explosion protection and many other options
TypeTA 70TA 120TA 130TA 140
Torque range (Nm) 90° - N x 360°0-3232-9090-280280-1500
Thrust force (N) for linearly actuated valves0-300300-10001000-40004000-11500

Downloads

IP 68 FAQ

In which system areas is IP 68 encapsulation recommended?

Not only when the drive is supposed to work in great water depths, but in all areas of the system that are permanently, occasionally or only rarely flooded. Hermetic encapsulation according to IP 68 can also be recommended for installations above canals, water basins or other areas where heavy evaporation is to be expected, as well as in areas where strong temperature fluctuations can lead to condensation forming in housings. Even if the atmosphere surrounding the drive is very corrosive (chemical gases, etc.), IP 68 encapsulation is advisable.


What should we make of information from other manufacturers who mention a time for IP 68 protection in their advertising or documentation, e.g. IP 68 (1 h) or similar, or a low immersion depth (e.g. 1 m)?

The manufacturer guarantees hermetic encapsulation against the ingress of water or other liquids only for a certain time or a specified immersion depth. We don't believe in such information at all. The user usually cannot reliably predict times or immersion depths. With regard to its information, the manufacturer works with hope values or with empirical values for which the test parameters are not practical.


Isn't IP 68 encapsulation excessive for installations above canals, water basins or other areas where more or less strong evaporation is to be expected?

No, because these outdoor applications in particular can lead to mysterious signs of corrosion in valve drives. The housing is intact, the drive is completely corroded inside. The search for reasons for the corrosion, the correspondence with the drive supplier, the replacement of the drives and the constant uncertainty as to when the next corrosion damage can be expected result in much higher costs than the one-off surcharge for an IP 68 housing.


Is IP 68 encapsulation not exaggerated in areas where strong temperature fluctuations can lead to condensation forming in housings. Isn't a heater like other manufacturers offering sufficient?

TA-Roloff also offers heating elements. Often these elements will be enough to prevent water from accumulating in the drive. However, if other factors are added, such as overhead installation, it becomes difficult to guarantee long-term operational safety. Heat rises and water collects at the bottom of the housing and is difficult to dissolve with a heater.


IP 68 and explosion protection, how is this compatible and what areas of application are there for it?

Explosion protection and protection class IP 68 pursue different goals in their implementation. With hermetic encapsulation according to IP 68, no substances should penetrate. The aim of explosion protection is to prevent the surrounding atmosphere from being ignited by sparks from inside the drive, for example. TA Roloff can combine both types of protection. If flammable gases can rise from the liquids that occasionally flood the drive, the planner should combine both types of protection.


What should we make of claims that electric drives are technically impermissible in underwater areas?

These claims are untrue, but are persistently maintained by those strategists who want to sell hydraulic drive technology for valves.

Data IP 68

Data sheet IP 68 / 90° / multiturn / linear application

The hermetic enclosure IP 68 Oceangear is available for every drive in the TA 70, TA 120, TA 130 and TA 140 series. (1) Select the appropriate drive series according to the torque range and operating mode. (2) Click the drive series button on the main page and find out more about the data and other options for the drive series. When ordering the hermetic enclosure IP 68 Oceangear, the weight increases significantly. Please refer to the product brochure for the external dimensions.

Type TA 70 TA 120 TA 130 TA 140
Torque range (Nm) 90° - N x 360° 0-32 32-90 90-280 280-1500
Thrust force (N) for linearly actuated valves 0-300 300-1000 1000-4000 4000-11500
Height 180mm 220mm 240mm 270mm

Options

parameter default Options Service / custom-made products
Operating mode Open/close 90° adjustment angle • Multi-way operation E 40 • Multi-turn operation • Linear operation • Consulting control applications • Step control E18 or tracking control E21 • Data bus solutions
Flange connection Bolt circle according to DIN ISO 5211 Structural parts according to the requirements of the valve Mechanical connection in the factory (adaptation)
Supply voltages 24VDC • 230 V AC/50 Hz • other AC / DC voltage Consulting electrical implementation
Cable entry Cable tail shed   Electrical connection on site
Position feedback Cam switch • Potentiometer • Transmitter 0-(4)-20 mA • Consulting signal processing • SMS control and feedback
Duty cycle like built-in TA drive Permanently modulating (Class D) • Motor modifications • Brushless motors
Metal case Painted steel stainless steel • RAL paints • Coatings
Protection class IP 68 and Im2 • additional explosion protection • ATEX Ex II 2 G Ex d II C T6 user-specific housings
Manual emergency operation   Hand lever  
Failsafe facilities   • Auxiliary voltage E71  

Downloads

In this download area you will find further details about the specifications of this product. If you have any questions about the product variants, options or customization options,

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