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After use in or near sea water, a fresh water rinse of the Remote load release device is advised before it is stored. Ideal for use in the water utilities industry to automatically place pumps into sumps or wet wells.
Third part whiteness test and certification available at extra cost (3rd party approval DNV, BV, Lloyds etc...) Safe working loads / Capacities range from 590kg to 69,000kg though special bespoke HookClamps are available on request, (we have designed and made units up to 250 tonne though greater capacities can be made on request)The "PNU-Series" Hook-Clamp is fitted with a compressed air cylinder (Pneumatic ram) and allows for air pressure to release the load. The Air Cylinders operate at 60 to 100 PSI. A multitude of general Industrial applications; indeed for any application where the rigging gear needs to be disconnected though is is an awkward, difficult to get to position. Automatic remote release of the rigging gear prevents unavoidable accidents. Once the safety hitch pin has been removed the clamp is“loaded” or “Live” and pulling the cord attached to the release lever WILL DROP / RELEASE the load. Pulling firmly on a release line connected to the end of the release lever also means that the operator can safety release the load away from the “danger area”. The release line can be activated “Directly” in any direction within the 90 degrees perpendicular and parallel to the line of load. The “Standard” release lever can also be operated from above the load as shown in the diagram below with the use of a suitable pulley; effectively giving 180 degree operation. The Hook-Clamp is now ready to be loaded. Once the safety / hitch pin is removed, the Hook-Clamp is armed and ready to be released. Either to “set down” a load or to drop a load in a controlled manor (as a drop test / dropping clamp) Air Cylinders provide another method of release and are fitted for activation using shop air at 60 to 100 PSI.
Effort required to release the load can be adjusted to suit your application (effort can be reduced or increased) Manually, pulling a long release line. No modification of the device is required. This method is used with lower capacity models, offers the lowest cost, and has many satisfied users. Toggle latches can come with or without catch plates, strikes or split pins as optional features for helping to secure the closed latch. They are available in a diverse selection of models and configurations, including:
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Welding, Heat Treatment, and Lubrication - All welding is with 17-4 SS wire only. All welded parts and pins are thoroughly cleaned and heat treated to H-1025 which increases the rating of the welding by 20-30% and the parts by 15%. Heat treating also results in improved mechanical, fatigue and corrosion properties across the board. Final assembly of the product includes the light application of a lubricant to each pin such as AQUA Lube, to protect the pin surfaces from pitting during extended marine use and aid in smooth mechanical function of the device. For higher capacity units, an NLGI #2.5 grease with moly added and a temperature range from 0 to 425F is applied. Do not side load the Remote load release device as it may cause loss of retainer rings and other parts or permanently damage the device. Explosive electric squib thrusters inserted into a special chamber below the toggle pin are used successfully to activate the device. The Hook-Clamp can release the load with or without load on the unit. (providing the safety hitch pin is removed). Used to precisely place a load in position then remotely (and therefore safely) release the load from the crane hook (rigging gear). Using this method the clamp releases the load when the weight has been transferred to the floor, (other surface for example lorry trailer building, ground etc....)
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