ML-range
The ML-Range is Alcatraz's multi-turn valve interlock.
Providing reliable mechanical interlocking for Gate, Gear, Globe valves, and all other multi-turn valve types from 1" up >".
Designed to be mounted onto any host valve / gearbox without breaking its confinement, no welding nor grinding.
The ML-Range all feature an integral parallel splined drive-tube, this ensures a strong HSE connection between the interlock and handwheel.
There is a wide selection of handwheel sizes & options to suit each application, and they can all be supplied in 316L or Carbon Steel coated.
The ML-Range interlock is manufactured in 316L stainless steel, each device comes surface finished electropolished to ASTM B912-02 as standard meaning no need to paint, and fire test certified to ANSI/API 607.
Next to that, each product is standardly certified to IP64 Encapsulated Key & lock portion preventing any ingress and contamination.
TUV Machine Process Safety Directive Certified, ensuring a reliable tamperproof performance in the harshest industrial environments.
The ML-Range delivers ergonomic, intuitive valve operation while enforcing strict valve process position control.
Product datasheets, installation manuals, and certification documents are available for download via OneHub or below. Please provide your email to access the downloads.
- Multi turn valve interlocking from 1/4" to >"
- ISO mounting footprint suitable for standardised installation
- Integral parallel splined drive-tube for enhanced HSE standards
- 316L handwheel as standard; optional Carbon steel handwheel available
- Handwheel adapter option for direct Gearbox valve stem connection
- Available in Lock Open (LO), Lock Closed (LC) and combined LO/LC configurations
- 316L stainless steel, electropolished to ASTM B912-02
- Fire test certified to ANSI/API 607
- IP64 Encapsulated Key & Lock portion sealed against ingress
- Mechanically programmed key codes
- Tamperproof mounting solutions
- Compliant with Machine Directive ISO 14119-2024 EN
- ASTM E208 25 metre key drop test approved
- Suitable for all multi-turn valves, gate, gear, globe, rising stem operated
Critical isolation valve interlocking, PSV, bypass and reinstatement sequences, pump protection, critical isolation, process vessel access control, and any multi-turn valve requiring an enforced position control.
Safety by design
Watch how Alcatraz Interlocks solutions improve safety, efficiency, and control in industrial environments."
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Applications
Pig traps
Interlocking and valve control solutions for pig trap launch and receive operations one of the most sequentially complex and hazardous procedures in pipeline operations.
Tank farm & storage solutions
Process safety solutions for tank farm isolation, product transfer, loading and unloading operations protecting against cross-contamination, overfill and uncontrolled release.
Flow control
Interlocking and valve control for critical flow control applications ensuring correct valve sequencing in process changeover, diversion and isolation procedures.
Pressure safety valve system
Interlocking solutions for PSV bypass and reinstatement ensuring that pressure protection is never compromised during maintenance or testing activities.
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Service
Alcatraz Interlocks delivers a complete range of professional services designed to protect the performance, reliability and integrity of your process safety systems throughout their operational lifecycle.
Ready to make your process safer?
Speak to one of our process safety specialists today. We're here to help you design the right solution for your application.Together, we ensure your systems meet the highest safety standards, reduce operational risks, and continue to perform reliably in even the most demanding environments.
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