Products
Double-Block-Bleed-Interlock
Product Model: H-DBBiL
ENEX i-LOCK Series H-DBBiL is the heavy industry DBB (Double Block & Bleed) quarter-turn Mechanical Trapped Key Safety Interlock product range for small bore quarter turn equipment such as screwed end and socket weld end DBB ball valves.
The H-DBBiL ‘Patented’ lock portions and keys allow for either dual or single trapped key sequential or standalone operational procedures.
The basic principle of this safety equipment is to lock the host equipment at a predetermined position such as fully open &/or fully closed.
For dual key system requirements, only if both rotary keys are inserted and rotated 90°, will the internal locking mechanism housed within the ENEX i-LOCK be released allowing the host equipment to be operated.
For single key systems, inserting and rotating the individual key, will release the ENEX i-LOCK internal locking mechanism allowing the host equipment to be operated. Each ‘Patent Pending’ lock portion and rotary key is uniquely coded to allow a truly safe operating sequence procedure.
Once the host equipment operation has commenced, the initially inserted key will be trapped and only when the host equipment has reached the opposing predetermined position will the next sequential key be released.
H-DBBiL product range can be supplied with on/off switches and proximity limit sensors to confirm :
- Key entry rotation or key removal rotation
- Valve locked open &/or closed positioning
Industries that utilise the H-IMTiL product range are:
- Chemical
- Marine
- Mining
- Mineral & Cement
- Oil & Gas
- Petrochemical
- Power Generation
- Pulp & Paper
- Refining
- Water & Utilities
Safety System Applications that are enhanced when the H-IMTiL product range is installed are :
- Small bore pneumatic line systems
- Small bore hydraulic line systems
- Small bore nitrogen, oxygen and all gas line systems
- Small bore transfer flow line systems
- SHELL DEP 80.46.30.11-Gen Specification
- EQUINOR TR2315 Final Ver 5.02 Specification
- 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 of the host equipment pressure envelope
- Anchor & Adaptor units designed and manufactured to suit the host equipment
- Operating levers 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
| Item | Part Description | Material |
|---|---|---|
| 1 | Body | St/St AISI 316L |
| 2 | Lock Portion & Ingress Protection Caps | St/St AISI 316L |
| 3 | Internal Locking Mechanism | St/St AISI 316L |
| 4 | Body Securing Bolts & fasteners | St/St A2 Class 70 |
| 5 | Lever to nearest original equipment length to be supplied | St/St AISI 316L |
| 6 | Anchor & Adaptor (bespoke design to suit host equipment, not shown) | St/St AISI 316L |
| 7 | Operating key | St/St AISI 316L |
| 8 | Name plate, lock portion and key tags | TroPly |
| Model No. | Height (mm) | Length (mm) | Width (mm) | Weight (kg) |
|---|---|---|---|---|
| H-DBB-S | 110 | 144 | 127 | 3.4 |
| H-DBB-L | 110 | 279 | 156 | 5.9 |
(note : dimensions are excluding anchor, adaptor and lever)
| 1. | 2. | 3. | 4. | 5. | 6. | |||
| H | - | iMT | L(Ex) | iL | - | S | - | X |
| 1. | INDUSTRY |
| H | Heavy Industry |
| 2. | SERIES |
| DBB | Small bore double & bleed interlock |
| 3. | OPTIONS |
| Standard if un-coded | |
| S | on/off switch |
| S(Ex) | Ex rated on/off switch |
| L | Limit Sensor |
| L(Ex) | Ex rated limit sensor |
| 4. | PRODUCT |
| iL | ENEX i-LOCK |
| 5. | PRODUCT TYPE |
| S | Small |
| L | Large |
| 6. | KEY SEQUENCE |
| O | Single key - locked open only |
| C | Single key - locked closed only |
| D | Duel key - locked open & closed |
| 7. | SPECIAL REQUIREMENTS |
| Standard if un-coded | |
| X | Special Build |
