Netherlocks Closure Door Locks for Pigging Systems

Key operated interlocks remove human error from valve operation sequences

Houston, Texas (February 23, 2012) – Improper operation of pigging system valves can result in equipment damage, injury or death. Netherlocks Safety Systems Closure Locks eliminate the danger to personnel and equipment by ensuring that correct operation procedures are followed every time pigging operations take place.

Netherlocks’ Closure Locks ensure proper operation of pigging systems.

Netherlocks’ Closure Locks ensure proper operation of pigging systems.

Pigging systems are used to insert a pipeline inspection gauge (PIG) into a live system transporting gas or liquid media, in order to perform various maintenance operations. Dealing with such high pressure levels, pigging operations require that a precise sequence of valve operation is followed in order to avoid disastrous consequences. Netherlocks’ Closure Locks protect against improper operation of a pigging system’s most important valve, the closure door.

Common accidents that occur during pigging operations often involve the system’s closure door. These incidents include opening the closure door while pressure still remains inside the vessel, opening the main process valve while the closure door is not fully closed, and opening the closure door while a high concentration level of toxins still remains inside the vessel.

Closure Locks are operated using a series of keys that lock into place, and can’t be removed out of sequence. This guarantees that workers always follow the correct valve operation procedure.

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New Touchscreen Interlock Management System from Netherlocks

Dutch interlock specialist Netherlocks has now launched its new Interlock System Information (ISI) Touch Screen key management device. As a standalone unit or integrated into either a key cabinet or control panel, the ISI Touch Screen stores all relevant information about an interlock system in a digitised, centralised, user-friendly format that is easily accessible by any operator without a need for specialised training.

New Touchscreen Interlock Management System from industrial and valve safety expert Netherlocks

New Touchscreen Interlock Management System from industrial and valve safety expert Netherlocks

All relevant interlock keys are shown on screen, and simply touching them will display detailed information about the key itself and the related system: system name, operating sequence logic, P&ID and Location. Additional buttons are present for on-screen instructions, general interlocking information and Netherlocks contact details; company-specific content can also be added if desired. If a printer is connected, operating sequence instructions can even be printed out for future reference away from the console.

By making clear information about the lock system and safety procedures easily available to everyone in the workplace, the ISI Touchscreen helps to keep all workers well-informed to reduce confusion, enhance productivity and improve plant safety.

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Netherlocks Manifold Interlocks Prevent Human Error

Products suitable for all manifold manufacturers

Houston, Texas (November 15, 2011) – Netherlocks’ manifold interlocks ensure that instrumentation valve operation on hydraulic manifolds conforms to process protocol. The interlocks are ideal for use on manifolds with 1oo2 (1-out-of-2), 2oo3 and 3oo4 configurations.

Netherlocks’ manifold interlock.

Netherlocks’ manifold interlock.

Netherlocks’ manifold interlocks are constructed from corrosion resistant 316 stainless steel. They use small operating keys to control the locked open (LO) and locked closed (LC) positions of the instrumentation valve. When installed, an operator can no longer deviate from the process procedure. Netherlocks’ manifold interlocks can be customized to fit any type of manifold manufacturer, including Parker, Swagelok and Aptek.

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Netherlocks TVL Protects Control Valves’ Calibrated Position

Houston, Texas (September 23, 2011) – Netherlocks’ TVL (Throttle Valve Lock) allows users to secure a throttle, choke or control valve in any position. The TVL is an ideal process control tool for ensuring that specific calibration settings are not changed without the proper clearance.

Netherlocks’ TVL throttle valve lock.

Netherlocks’ TVL throttle valve lock.

The TVL is integrated onto the valve and controlled by a single key which, when removed from the lockbox, renders the valve inoperable. Products like wires and chains to secure a valve allow small movements even while the lock is applied. When the TVL is used, it leaves no room for “play” and protects the valve’s calibrated position.

The TVL is constructed from corrosion resistant 316 stainless steel and designed to withstand extreme operating environments. It features maintenance-free operation and an integrated safety system to prevent unlocking without the designated key.

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Netherlocks New Touch Screen Display for Key Interlocks at ChemInnovations

CKC-Touch Screen provides centralized storage for all interlock information

Houston, Texas (August 5, 2011) – Netherlocks will feature its new CKC-Touch Screen display for key interlocking systems at ChemInnovations 2011 Conference and Expo, September 13-15 at the George R. Brown Convention Center (Houston, Texas). The company will offer hands on demonstrations of the CKC and other process safety interlocking systems at its booth 3020.

Netherlocks’ CKC-Touch Screen, on display at ChemInnovations booth 3020.

Netherlocks’ CKC-Touch Screen, on display at ChemInnovations booth 3020.

Netherlocks’ CKC-Touch Screen is designed to be integrated into interlock key cabinets, or can be mounted separately as a standalone feature. All cabinet keys are displayed on the screen and one touch provides detailed information about that specific key and its corresponding interlock system. The touch screen also includes additional information buttons that provide access to factory contact details, operating manuals, general product information and training instructions.

Netherlocks will also feature demonstrations of its key-operated valve interlocking systems and FAITH partial stroke testing system.

For more information, visit the company’s booth 3020.

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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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Industrial and Valve Safety Expert Opens New Regional Office in Germany

Dutch interlocking and valve safety system provider Netherlocks has now expanded with the founding of a new subsidiary: Netherlocks Safety Systems GmbH, based in Stockstadt, Germany. The company is a world leading provider of industrial and valve safety interlocking systems, servicing many industries including petrochemical, oil and gas, and many other processing operations.

Valve safety and interlocking device manufacturer Netherlocks has opened a new subsidiary office in Germany

Valve safety and interlocking device manufacturer Netherlocks has opened a new subsidiary office in Germany

All staff, stock and ongoing projects from the valve interlocking division of GST-Systeme GmbH will now be transferred seamlessly into the new Netherlocks Safety Systems GmbH business. Existing customers will experience no disruption to their service, and will now benefit from the added availability of the full range of Netherlocks products, spare parts and support services.

Stephen Sadowski, who will be heading up the new enterprise, said: “This is an exciting opportunity, and it’s great to be bringing Netherlocks’ proven technology and expertise to an even broader market.”

Netherlocks is a leading name in interlocking and valve control technology including valve position indicators and partial stroke systems, with major projects around the world in the oil and gas, petrochemical, and process industries. In addition to the Netherlands and Germany, the company also has offices in the USA, China and the Middle East.

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Partial Stroke Testing (PST) System Ensures Proper Operation of Emergency Valves

FAITH system from Netherlocks features simple design for reliable operation

Houston, Texas (May 4, 2011) – For partial stroke testing of valves without overshoot risk or process interruption, Netherlocks offers the FAITH test system.  FAITH allows online testing of emergency shutdown (ESD) or high integrity pressure protection system (HIPPS) valves, to reduce degradation and ensure that they operate properly should the need arise.

The FAITH partial stroke testing (PST) system from Netherlocks.

The FAITH partial stroke testing (PST) system from Netherlocks.

FAITH’s simple mechanical design delivers reliable operation.  The system integrates into a valve’s static and dynamic couplings, replacing the original coupling and spool piece.  During partial stroke testing, FAITH’s mechanical steel blocking pins ensure that the dynamic coupling can only turn to the preset test angle (ie 20 degrees) to allow flow to continue through the valve during the test without risking overshoot. 

All FAITH systems can be customized to fit directly between the valve and actuator without additional brackets.  Models are available for both linear and rotating actuators.  Electronic switches can also be added to the FAITH system to allow the control room to monitor the test.

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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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Netherlocks Providing Safety Systems for Large Ethylene Cracker Complex in Singapore

1600 safety interlocking devices from Dutch industrial safety specialist Netherlocks B.V. have been successfully installed at the Shell Eastern Petroleum (Pte) Ltd. (SEPL) Ethylene Cracker Complex in Pular Ular, Singapore. The main applications for the interlocks are for the decoking process, and on isolation valves for PSVs (Pressure Safety Valves).

1600 Valve safety interlocks from Netherlocks B.V. have been installed at the new Ethylene Cracker Complex in Singapore.

1600 Valve safety interlocks from Netherlocks B.V. have been installed at the new Ethylene Cracker Complex in Singapore.

Netherlocks’ interlocks use a linear key transfer system to ensure that processes can only be carried out in the correct order, ensuring each part has been safely completed before the next can be started. Safely completing the previous step in the process sequence will release a unique key that then unlocks the next step; only when a mistake is made will the operator be prevented from proceeding by a key that doesn’t fit or a valve locked in position. This simple principle can be propagated to more complex procedures, but in every case it physically ensures that safety protocols and work orders are followed exactly, leaving no scope for human error.

Projected to produce 800 kt/a of ethylene, 450 kt/a of propylene and 230 kt/a of benzene, the facility consists of an Ethylene Cracker Unit, a Pygas Hydrogenation/Benzene Extraction Unit, a C4 Selective Hydrogenation Unit and various associated utilities. Opened in March 2010, the complex links the nearby SEPL Refinery with downstream chemical units, forming an integrated petrochemical ‘super site’ in Singapore. With plant safety such a critical issue, Netherlocks is proud to offer both its range of high quality, reliable products and many years of experience and expertise in the industrial safety field.

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