Mechanical Valve Interlocks Guarantee Safety in Locking Out Critical Valves

Customized systems available for all type of valves

Houston, Texas (June 7, 2011) – Many industrial processes require valves to be secured in a locked-open or locked-closed position.  Netherlocks’ mechanical valve interlocks eliminate human error to ensure that critical valves are locked in the proper position.

Netherlocks mechanical interlocks safeguard critical industrial processes.

Netherlocks mechanical interlocks safeguard critical industrial processes.

Standard interlocking products use a padlock and key, and provide no information about the current position of the valve.  Netherlocks’ mechanical valve interlocks are operated with two color-coded keys, which through a trapped key mechanism, control the open and closed position of a valve and communicate its current state.  When the green key is released, the valve is locked in the “locked-open” position.  For the red key to be released, the valve must be locked in the “locked-closed” position.  If a valve is left in a midway position between open and closed, both keys are trapped in the device.  Through this system, the current position of the valve is guaranteed.

Netherlocks’ valve interlocks are fully mechanical with no need for electronic wiring.  They are easily incorporated into new construction and are ideal for retrofitting older installations to mitigate potential safety issues.

Netherlocks manufactures a wide range of interlocking devices to fit all types and sizes of valves. All interlocks feature a simple and robust design. For dependable longtime operation all valve interlock components are made from corrosion resistant 316 Stainless Steel.

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Netherlocks NL-H Universal Locking Device for Handwheel and Lever Operated Valves

Corrosion-resistant lock ideal for work in corrosive environments

Houston, Texas (March 18, 2011) – Providing secure lockout for all types and sizes of manual valves, Netherlocks offers the NL-H Hybrid Lock.  The NL-H can secure valves in every position, and its universal compatibility eliminates the need for maintaining an inventory of assorted lockout products for each type of valve on-site. 

The NL-H universal valve locking device from Netherlocks.

The NL-H universal valve locking device from Netherlocks.

The universal NL-H uses a flexible steel cable to immobilize a valve’s handwheel or lever.  The unit secures to the valve with a padlock, to ensure the valve cannot be operated.  The NL-H is made entirely from corrosion-resistant 316 stainless steel for reliable operation in harsh environments such as in offshore or chemical applications.

Netherlocks’ NL-H saves maintenance personnel’s time, by eliminating the need for scouting trips into the field to determine the correct lockout product for a valve.  By bringing an NL-H to the job site, workers can be assured any valve will be safely locked out so that work can be completed.

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