Maritime regulations require a system of blocking chains.

The NORPRO NP-serie Chainstopper is a completely integrated locking system allowing safe and easy handling during anchor deployment and retrieval.
Designed for mounting directly between the anchor and the anchor winch, suitable for chain diameters from 20 to 132 mm.
A tensioning device incorporated within all our Chainstoppers is used to tighten the anchor against the hull thus preventing damage. 
On request, tensioning device can be hydraulic to save time in emergency situations by releasing the anchor from the wheelhouse without manual operation.

Models NP7 through NP13 require opening assistance using either a hydraulic or counter balance system. Optional extended base: 300 mm maximum.



Shackle and wire is not included; this is to be delivered by yard.

NP-serieTypeChain diam.Weight
NP 120 - 26125
NP 228 - 34200
NP 336 - 44320
NP 446 - 52640
NP 554 - 58940
NP 660 - 64

1060

Type 7 to 13 with hydraulic assistance
NP 766 - 731350
NP 876 - 841770
NP 985 - 952520
NP 1096 - 1053100
NP 11107 - 1144200
NP 12117 - 1245100
NP 13127 - 1325600

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Contact class surveyor for advice on under deck support of all load carrying equipment.