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4.0 Testing of the NTS-PU after a separation

4.1 Test procedure

a. Process environment

Make sure the shut off valves on both sides to the NTS-PU are closed

... that the line is depressurized

... that the line is drained / purged

b. Optical inspection

Check for physical damage to the coupler

Check seal rings for damage

Check all release parts for damage

Check face o-rings (where the two NTS-PU halves mate) for damage

4.2 Evaluation of the damage and consequences

a. Minor damage

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

Содержание NTS-PU Series

Страница 1: ...Page 1 OPW Emergency Safety Disconnector Safety Breakaway Coupling Type NTS PU Series Pull Away Sizes 1 4 DN25 DN100...

Страница 2: ...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 7 5 0 Reassem...

Страница 3: ...status the NTS PU is open and allows for free flow If a tensile force exceeds the preset value the two halves separate The valves instantly close on both ends to prevent spillage The separation does...

Страница 4: ...seal rings upon request 1 6 Specifications Sizes 1 4 DN25 DN100 Pressure rating 232psi PN16 Aluminium 360psi PN25 SS Connections BSP and NPT threads DIN ISO ASA TW and TTMA flanges Other treads and f...

Страница 5: ...transport These parts have to be removed before the NTS PU goes into service as explained in the manual 2 2 Removal of packing material The NTS PU is packed in special wrapping material and boxed for...

Страница 6: ...duction line 4 Mounting screws must be removed before the use of the NTS PU 5 During the separation small amounts of media could escape We therefore recommend an additional spray protection 6 The user...

Страница 7: ...amage to the coupler Check seal rings for damage Check all release parts for damage Check face o rings where the two NTS PU halves mate for damage 4 2 Evaluation of the damage and consequences a Minor...

Страница 8: ...ssembly of the NTS PU after a separation 1 Terminology of the most important coupler parts Inline Adapter Release Lever O Ring Threaded Hole for Mounting Screws Hole for Threaded Rod Threaded Hole for...

Страница 9: ...e it 2 Depressurize and empty line page 7 point 4 1 line a 3 Optical inspection page 7 point 4 1 line b 4 Place the 6 x Mounting Screws into the threaded hole at the Adapter The Release Levers open to...

Страница 10: ...5 Place the 2 x threaded rods by turning them clockwise 6 Place the Adapter on the top of the Inline and placing the 2 x washers and hex nuts of the threaded rods Threaded Rod Inline Adapter Washer H...

Страница 11: ...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 Rele...

Страница 12: ...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...

Страница 13: ...ssure stepwise and check for leakage 6 4 Pressure testing of the mounted NTS PU Close the coupler on one side with a blind threaded end blind flange and fill with fluid in an upright position Apply th...

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