MOV Interlock

Product Model: H-MOViL

ENEX i-LOCK Series H-MOViL is the heavy industry Actuator Operated (Electrical, Hydraulic and Pneumatic) Mechanical Trapped Key Safety Interlock product range. It is suitable for a wide range of actuated valves comprising three constituent components: An Actuator Switch Panel Interface Interlock, A Actuator Manual Override Interlock and a Actuator Valve Position Prover Interlock. These three devices ensure: a) The actuator failsafe function is not compromised, b) The valve ‘absolute position’ is guaranteed and c) The actuator manual override cannot be used to override the Interlock function.

The Key Interlock system does not compromise the valves fail-safe function. The key Interlock system verifies the valves absolute position (open &/or closed) independent of any on-board instrumentation indication. A range of comparable designs are also available for spring-return and not-return hydraulic actuators and for spring-return pneumatic actuators.

Retro-fitting, cab be undertaken on ‘live’ plant with any necessity for process shut-down due to the Interlock mounting arrangements never compromises the certified pressure

H-MOViL product range can be supplied with on/off switches and proximity limit sensors to confirm:

  • Key entry rotation or key removal rotation
  • System switch over positioning

  • PSV (Pressure Safety Valve) Systems
  • Pig Trap Loading / Unloading Systems
  • Valve Isolation Requirements
  • Transfer Flow Line Systems

  • Chemical
  • Marine
  • Mining
  • Mineral & Cement
  • Oil & Gas
  • Petrochemical
  • Power Generation
  • Pulp & Paper
  • Refining
  • Water & Utilities

  • SHELL DEP Specification
  • EQUINOR TR2315 Final Ver 5.02
  • ISO/TS 19837:2018 - Technical Specification
  • ISO 14119:2013 (formally EN1088)
  • Salt Mist Test (Lloyds Test Spec No 1)
  • Fire Test (API 607 & ISO 10497:2010)
  • High Temp Test 70c (EN 60068-2-2:2007)
  • High Humidity Test (EN 60068-2-2:2007)
  • Static and Dynamic Inclination (IEC 60092-504:2001)
  • Ultra Low Temp -57c (EN 60068-2-1:2007)
  • Vibration Test (EN 60068-2-6:2008)
  • Ingress Protection Test (EN 60529:1992 Amd 1&2)
  • Directive 2006/42/EC

  • UK Designed, Engineered, Manufactured, Assembled & Tested Products
  • Minimum 3 billion - billion! ‘unique’ Rotary Key Code permutations from the ‘Patented’ Lock Portion & Key Design. We stopped counting at 3 billion !
  • Ultimate Safe and Secure Mechanical Interlock Design.
  • Defeat, override & tamperproof compliant
  • Solid and robust construction with no cast parts
  • Materials of construction : Stainless Steel
  • Unique ‘Patented’ Lock Portion & Key Design.
  • Lock Portion and Key Design have been tested to over 200’000 cycles
  • Lock Portion and Keys include ‘over torque’ protection mechanism as standard
  • Tamper proof and copy proof body housing, lock portions and keys
  • Unique ENEX i-LOCK tamper proof securing bolts
  • Unique on the ‘Patented’ key is that the code and drive members function independently
  • One single Master Key covers site installed Key Code permutations
  • Ultimate product design for normal, harsh and corrosive environments
  • Spring loaded Lock Portion Ingress Protection & Weather Seals Dust Caps
  • Can be installed to host equipment under live process conditions
  • No interference or intrusion with of the host equipment pressure envelope
  • Anchor & Adaptor units designed and manufactured to suit the host equipment
  • Hand wheel diameters are sized and selected to maintain host equipment operating torques
  • Product serial number traceability on every unit
  • Secure mechanical fixing of all labels and tags
  • Full colour coded key & dust cap tagging option for enhanced error elimination
  • Pad lockable dust covers are an option for lockout hasp and scissor hasps operation

1. 2.3.4. 5.6. 7.
HHeavy Industry
MOVMotor Operated Valve
Standard if un-coded
Son/off switch
S(Ex)Ex rated on/off switch
LLimit sensor
L(Ex)Ex rated limit sensor
BBall Valve
GGate Valve
OSingle Prover Position (open only)
CSingle Prover Position (closed only)
DDuel Prover Position (open & closed)
 Standard if un-coded
XSpecial Build