Interlock applications
Handwheel valve interlocks

Handwheel valves

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Motor operated valve (MOV)  interlocking system

Motor operated valves MOV

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Actuator interlocks


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Quarter turn valve interlocks

Quarter turn valves

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Gear operated valve interlocks

Gear operated valves

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Quarter-turn worm gearbox interlocks

Quarter-Turn Worm Gearboxes

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Cleanroom valve interlocks

Cleanroom valves

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Closure door interlocks

Closure doors

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Rotary switches interlocks

Rotary switches

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Butterfly valve interlocks

Interlock specials

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Reusable car seal

Car seal reusable

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Strahman drain valve interlocks

Drain valves

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Monoflange valve interlocks

Monoflange valves

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Disc lock

Disc lock

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More information?

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Alcatraz newsroom

New video: Pressure safety valve changeover using valve interlocks

Our newest video is finished. In this video Bram Loose explains the working and sequence of our valve interlocks used on pressure safety valves,... Read more

Valve World Americas Expo & Conference 2017

On the 20th and 21st of June the 2017-edition of Valve World Americas Expo & Conference will take place at the George R. Brown Convention Center in... Read more

Attending the Exponor Chile 2017 exhibition

From the 15th of May till the 19th of May we are attending the global technology and innovation show for the mining industry in Antofagasta -... Read more


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5121 DP Rijen
The Netherlands

Phone: +31 76 514 7172
Fax: +31 76 522 5296

Safety by design