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OPW NTS-PU Series Quick Start Manual

Safety breakaway coupling
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OPW Emergency Safety Disconnector
Safety Breakaway Coupling
Type NTS-PU Series (Pull-Away)
Sizes 1"- 4'' (DN25 – DN100)
Page
1

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Summary of Contents for OPW NTS-PU Series

  • Page 1 OPW Emergency Safety Disconnector Safety Breakaway Coupling Type NTS-PU Series (Pull-Away) Sizes 1”- 4’’ (DN25 – DN100) Page...

  • Page 2: Table Of Contents

    Content Please read carefully the following OPW user manual to avoid incidents and in correct use. Page Content ............................2 1.0 Description of the NTS-PU Safety Breakaway Coupling ............3 2.0 Operator’s manual NTS-PU ....................5 3.0 How to install the coupler ......................6 4.0 Testing of the coupler after a separation ................

  • Page 3: Description Of The Nts-Pu Safety Breakaway Coupling

    1.0 Description Safety Breakaway Coupling 1.1 Area of use The Safety Breakaway Coupling (NTS-PU) can be used in loading arms, hose- and pipelines for the transfer of fluids or gas. A typical application is the unintended tank truck/railcar/aircraft pull-off or the drifting away of a barge or ship.
  • Page 4 1.5 Materials The following combinations are suggestions depending on the media: Housing/internals Seals General chemical use: SS 316 (L / Ti) Elastomer o-rings Acid- / alkaline solutions: Alloys Elastomer o-rings Fuels / oils : SS 304 Elastomer o-rings Also available in anodized aluminum! ®...

  • Page 5: Operator's Manual Nts-Pu

    Operator’s manual NTS-PU Arrival condition of the NTS-PU The NTS-PU is shipped with the reconnecting rods, nuts and bolts in place to prevent an inadvertent separation during the transport These parts have to be removed before the NTS-PU goes into service as explained in the manual.

  • Page 6: How To Install The Coupler

    How to install the coupler 1. To assure a safe function the NTS-PU needs to be installed as follows: a. Tensile force either axial or at an angle b. The coupling halves need to have enough space to fully separate. This guarantees the complete closure of the valves.

  • Page 7: Testing Of The Coupler After A Separation

    Repair on site possible by local crew e.g. defective o-rings between the coupler halves or damaged seal ring Use only original spare parts b. More severe damage e.g. damage to the housing or to any of the moving parts Please contact the your OPW representative Page...

  • Page 8: Reassembly Of The Nts-Pu After A Separation

    Reassembly of the NTS-PU after a separation 1. Terminology of the most important coupler parts Inline Adapter Threaded Hole for Mounting Screws Threaded Hole for Threaded Rod O-Ring Release Lever Hole for Threaded Rod Page...
  • Page 9 Depending on the size and the placement it might be easier to remove the coupler from the manifold in order to reassemble it. 2. Depressurize and empty line (page 7, point 4.1, line a) 3. Optical inspection (page 7, point 4.1, line b) 4.
  • Page 10 5. Place the 2 x threaded rods by turning them clockwise Threaded Rod 6. Place the Adapter on the top of the Inline and placing the 2 x washers and hex nuts of the threaded rods Inline Washer Hex Nut Adapter Page...
  • Page 11 7. Narrow the space between adapter and inline initially by applying manual pressure, then by carefully tightening the hex head nuts crosswise as far as they go until the two halves are fully flush. 8. Replace the 6 x Mounting Screws out of the threaded hole at the Adapter body The Release Levers are closed and ready for use Coution! Do not remove these...
  • Page 12 9. Remove the 2 x threaded rods including the washers and hex nuts 10. The Safety Breakaway Coupling is now complete and after the pressure test (page 13, point 3.4) ready for use Page...

  • Page 13: Testing And Maintenance Recommendations

    Test – and Maintenance recommendations – NTS-PU Test periods of the Safety Breakaway Coupler Independently from governmental regulations, we recommend to test Safety Breakaway Couplers at least once a year according to the test recommendations for thermoplastic, elastomer-type hoses. A more vigorous use requires shorter test intervals. Elevated temperatures, higher concentrations, impurities and abrasive particles can significantly influence the corrosion resistance in Emergency Release Couplers.

  • Page 14: Remarks

    Remarks Notes: ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ Page...