GATE VALVE LOCK
PRODUCT FEATURES • Gate valve locks are suitable for valve handles with diameters from 127
Product Overview
The Gate Valve Lock is a purpose-engineered lockout/tagout (LOTO) device designed to secure gate valve handwheels with diameters ranging from 127 mm to 165 mm, effectively preventing accidental or unauthorised valve operation. Constructed from high-grade engineering-plastic ABS, its robust yet lightweight thermoplastic housing resists a wide range of industrial chemicals and performs reliably under extreme environmental conditions. Supplied with high-visibility permanent security labels, this device is an essential component of any comprehensive LOTO safety programme.
Key Features
- Fits gate valve handwheels with diameters from 127 mm to 165 mm
- Strong, lightweight ABS engineering-plastic construction
- Chemical-resistant thermoplastic housing for harsh industrial environments
- Semi-circular clamshell design (MLH01-H05) accommodates safety padlocks with shackle diameter ≤ 7 mm
- Includes high-visibility permanent security warning labels (English)
- Standard colour: red; custom colours available on request
- Transparent PC variant available: high-temperature resistance and impact resistance
- Wraps around the valve operating handle to prevent accidental opening
- Suitable for extreme operating conditions
- Compatible with standard safety padlocks for full LOTO compliance
Technical Specifications
Applications
- Oil & gas pipeline valve isolation during maintenance
- Chemical plant process valve lockout
- Petrochemical facility shutdown and LOTO procedures
- Power generation plant valve control isolation
- Water treatment facility valve lockout
- Manufacturing plant energy-isolation programmes
- Offshore platform valve safety lockout
- Refinery turnaround and maintenance operations
- Pharmaceutical plant process safety
- Mining and heavy-industry valve isolation
Product Benefits
By physically preventing gate valve handwheels from being turned, this lockout device eliminates the risk of accidental valve operation during maintenance, inspection, or servicing — protecting workers from hazardous energy releases and sudden fluid flow.
The ABS thermoplastic housing is engineered to withstand exposure to industrial chemicals, moisture, and temperature extremes, ensuring long-term reliability in oil & gas, petrochemical, and heavy-manufacturing settings without degradation.
The semi-circular clamshell design allows the device to be positioned around the valve handwheel and secured quickly without special tools, minimising equipment downtime and making it practical for large-scale LOTO programmes.
The integrated hasp accommodates safety padlocks with a shackle diameter of ≤ 7 mm, enabling multiple stakeholders to apply their own locks simultaneously — a critical requirement for group lockout procedures under OSHA and international safety standards.
The bright red colouring and permanent high-visibility security labels make the lockout status immediately apparent to all personnel, reinforcing safety awareness and deterring inadvertent tampering.
Why Choose Dareen
- Precisely engineered for 127–165 mm gate valve handwheels — no improvised adaptations needed
- Premium ABS construction delivers an optimal balance of strength, chemical resistance, and low weight
- Standard red colour with optional custom colours supports site-specific colour-coding LOTO systems
- Accepts padlocks with shackle up to ≤ 7 mm for versatile, multi-lock group lockout
- Optional transparent PC variant enables visual confirmation of valve position without removal
- Supplied by Dareen International — trusted industrial safety equipment specialists in Dammam, Saudi Arabia
