PIPES AND DUCTWORK


from smaller diameter bars to save on materials – this often results in a change in the angle of the thread which can lead to nuts slipping and potentially a failed system.


from smaller diameter bars to save on materials – this often results in a change in the angle of the thread which can lead to nuts slipping and potentially a failed syste m. It is also always possib


c


It is also always possible for the threaded rod to become bent out of shape and as a result it must be replaced. Wire rope on the other hand has no memory and thus it is easy to return it to its original position without any damage occurring.


ble for the threaded rod


to become bent out of shape and as a result it must be replaced. Wire rope on the other hand has no memory and thus it is easy to return it to its original position without any damage occurring.


But perhaps one of the main benefits of a wire rope suspension system is that installers can have complete confidence that the system will meet the demands which are placed on it - providing the correct installation procedures are followed and the Safe Working Load is not exceeded. The DobyGrip system for example is independently safety load tested to a 5:1 safety factor and as such it is a safe, fast and efficient method for suspending static loads such as HVAC equipment.


But perhaps one of the ppension system complete confidence tha the demands which are p


rope susp


is that installers can have e main benefits of a wire


placed on it - providing t the system will meet


the correct installation procedures are followed and the Safe Working Load is not exceeded. The DobyGrip system for example is


independently safety loa d tested to a 5:1 safety factor and as such it is a safe, fast and efficient m ethod for suspending static loads such as HVAC equipment.


Taking the next step aking the next step


Despite all of its benefits and obvious safety features, wire rope suspension systems are increasingly being hit by a new challenge because the reduction in ceiling heights and thus the


Despite all of its benefits and obvious safety features, wire rope suspension systems are increasingly being hit by a new challenge because the reduction in ceiling heights and thus the


size of the plenum has led to a new problem. Co


onventional wire rope suspension sys require the maximum angle of the cab


loc ca


able lock. ck, passing round the duct and retur


stems


no more than 60 degrees from leaving the cable ning to the


size of the plenum has led to a new problem. Conventional wire rope suspension systems require the maximum angle of the cable to be no more than 60 degrees from leaving the cable lock, passing round the duct and returning to the cable lock.


ble to be


This typically means that on a 300mm (12inch) circular duct, the minimum suspension height from the top of the duct to the cable l ock is also 300mm (12inch). Subsequently, the minimum he


eight required to install the duct is at least 600mm (24


(4inches). I n theory this means that the current


systems cannot be used where ceiling space is restricted…..


But when a challenge presents itself there is always a solution which is where the new Do


In theory this means that the current systems cannot be used where ceiling space is restricted…..


obyGrip Max comes into play, sheddi ng a whole new light on the suspension of ductwork and other MEP services where installation height is restricted.


It still comes with all of the time saving features and benefits that the industry has come to recognise, but the main element in its favour is that DobyGrip Max allows the cable lock to be positioned tight against the top of the duct, consequently reducing the minimum


It still comes with all of the time saving features and benefits that the industry has come to recognise, but the main element in its favour is that DobyGrip Max allows the cable lock to be positioned tight against the top of the duct, consequently reducing the minimum


But when a challenge presents itself there is always a solution which is where the new DobyGrip Max comes into play, shedding a whole new light on the suspension of ductwork and other MEP services where installation height is restricted.


This typically means that on a 300mm (12inch) circular duct, the minimum suspension height from the top of the duct to the cable lock is also 300mm (12inch). Subsequently, the minimum height required to install the duct is at least 600mm (24inches).


height required on installation by 50%. This also provides a saving in materials as the length of wire rope required for the installation is significantly reduced.


s


height required on installation by 50%. This also provides a saving in materials as the length of wire rope required for the installation is significantly reduced.


In some installations this 50% reduction in the minimum h eight required can mean the difference between using a wire rope suspension system and taking advantage of all of its benefits or reverting back to the somewhat lengthy process of carrying out the installation using a tradition threaded rod solution.


The need to maximise available space in


today’s modern buildings is one that the industry and more importantly the installer will continue to be faced with


h. But the installer is also faced


with the issue of an ever-decreasing budget and the need to get in and get the job done q uickly….and safely. They also need to meet the expectations of the end user and this busy and demanding world in which we live,


customers naturally have high expectations. Therefore, im


mportance must be placed on


finding fast and effective but safe installation methods. Wire rope suspension systems have proved themselves time and again to be all three and by taking the next step they are now even more versatile than ever.


t


In some installations this 50% reduction in the minimum height required can mean the difference between using a wire rope suspension system and taking advantage of all of its benefits or reverting back to the somewhat lengthy process of carrying out the installation using a tradition threaded rod solution. The need to maximise available space in today’s modern buildings is one that the industry and more importantly the installer will continue to be faced with. But the installer is also faced with the issue of an ever-decreasing budget and the need to get in and get the job done quickly….and safely. They also need to meet the expectations of the end user and this busy and demanding world in which we live, customers naturally have high expectations. Therefore, importance must be placed on finding fast and effective but safe installation methods. Wire rope suspension systems have proved themselves time and again to be all three and by taking the next step they are now even more versatile than ever.


Petra


www.acr-news.com


April 2018 37


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