GATE VALVE LOCK
PRODUCT FEATURES • Gate valve locks are suitable for valve handles with diameters from 64m
Product Overview
The Gate Valve Lock (MLH01-H05) is a professional lockout/tagout device engineered to secure gate valve handwheels with diameters ranging from 64 mm to 127 mm, preventing accidental or unauthorised valve operation during maintenance and servicing activities. Constructed from high-grade engineering plastic ABS, its robust yet lightweight thermoplastic housing delivers outstanding resistance to chemicals and extreme environmental conditions. Supplied with high-visibility permanent security labels, this device forms an essential component of any compliant LOTO safety programme.
Key Features
- Compatible with gate valve handwheels with diameters from 64 mm to 127 mm
- Strong, lightweight ABS engineering plastic housing resists chemicals and harsh conditions
- Semi-circular clamshell design (MLH01-H05) accommodates safety padlocks with lock beam diameter ≤ 7 mm
- Supplied in high-visibility red as standard; custom colours available on request
- Includes permanent high-visibility security warning labels in English
- Transparent PC (polycarbonate) variant available on request – offering high temperature and impact resistance
- Wraps around the valve operating handle to block accidental or unauthorised valve opening
- Suitable for use in extreme industrial environments
Technical Specifications
Applications
- Oil & gas pipeline gate valve lockout during maintenance shutdowns
- Petrochemical plant process valve isolation
- Water treatment facility valve control safety
- Power generation plant maintenance isolation procedures
- Manufacturing facility machine and process lockout programmes
- Offshore platform valve safety and isolation
- Refinery turnaround and scheduled maintenance operations
- Construction site temporary utility isolation
- HVAC and building services valve lockout
- Any industrial environment requiring LOTO-compliant valve control
Product Benefits
The gate valve lock physically encases the handwheel, making it impossible to rotate the valve without first removing the secured padlock. This eliminates the risk of accidental energisation during maintenance, protecting workers from unexpected release of hazardous energy.
The ABS thermoplastic housing is engineered to withstand exposure to industrial chemicals, moisture, UV radiation and extreme temperatures, ensuring long-term reliability in the toughest plant environments across Saudi Arabia and the wider Gulf region.
The semi-circular clamshell design clips directly around the gate valve handwheel without the need for any tools or modifications, enabling fast deployment during planned or emergency isolation procedures and reducing downtime.
The standard red colour and included permanent high-visibility warning labels make the lockout status immediately obvious to all personnel, reinforcing a proactive safety culture and reducing the risk of procedural errors.
Available in custom colours to match site-specific colour-coding systems and in a transparent PC variant for environments requiring visual confirmation of valve position, the MLH01-H05 adapts seamlessly to diverse operational requirements.
Why Choose Dareen
- Engineered specifically for gate valve handwheels – not a generic, one-size-fits-all solution
- Broad diameter range (64–127 mm) covers the majority of standard industrial gate valves
- Supplied by Dareen International, a trusted safety equipment specialist based in Dammam, Saudi Arabia
- Supports full LOTO compliance in line with international occupational safety standards
- Customisation options (colour, transparent version) meet site-specific LOTO colour-coding requirements
- Lightweight design does not add undue load to valve assemblies, preserving mechanical integrity
