Norgren CR043D 3/2 Lockout Valve - Integral Silencer
Part Number: CR043D
Quick Summary
CR043D lockout valve provides 3/2 control for safe isolation of pneumatic lines in industrial automation. Maintenance teams often wrestle with OSHA lockout/tagout compliance and the risk of accidental actuation during servicing. While the datasheet highlights OSHA 29 CFR Part 1910 compliance via padlockable closed-position operation and an integral silencer, it doesn’t list SIL, CE, or IP ratings; nonetheless, the rugged aluminium body and nitrile elastomer seals deliver reliable durability. By aligning with the CR04 family, you gain standardized porting, faster procurement, and easier spare-part planning, delivering safer maintenance routines and more predictable downtime management across automated lines.
Product Information
Extended Description
CR043D Norgren: 3-way, manually operated, full flow lockout valves can be locked in the closed position with a padlock | Helps you comply to OSHA regulations, as they relate to OSHA regulation 29 CFR Part 1910, standard for lockout/tagout procedures
Medium
Compressed air
Operating Temperature
-30 ... 80 °C, -20 ... 175 °F
Port Size
G3/4
Valve operation
3/2
Flow
11120 l/m, 392.7 scfm
Materials - Body
Aluminium
Materials - Elastomers
Nitrile rubber
Range
CR04
Brand
IMI Norgren
MB006B
Quietaire heavy duty silencer male, R3/4
Feature → Business Impact → Application: Lockout capability with a padlockable closed position delivers a clear, enforced safety interlock, reducing the risk of unexpected actuation during maintenance and enabling OSHA lockout/tagout procedures to be followed consistently on pneumatic lines in manufacturing floors. This translates to fewer safety incidents and lower downtime during servicing. Application: Best suited for panel-mounted automation systems where personnel safety and regulatory compliance are priority, including assembly lines and process equipment that rely on compressed air. Feature → Business Impact → Application: Integral Quietaire MB006B silencer significantly reduces noise in work environments, improving worker comfort and compliance with workplace noise limits, while keeping the valve footprint compact. Application: Ideal for control cabinets and compact installations near operators. Feature → Business Impact → Application: Aluminium body with nitrile rubber elastomers provides robust resistance to corrosion and wear across a wide temperature range, supporting long life in demanding environments. Application: Suitable for outdoor or factory floor installations with ambient temperatures from -30 to 80 °C. Feature → Business Impact → Application: G3/4 port size and full-flow 3/2 operation minimize pressure drop and support high-demand cycles, improving actuation speed and system efficiency. Application: Integrated into standard pneumatic circuits requiring reliable, fast isolation with minimal system disruption. Feature → Business Impact → Application: CR04 range compatibility enables consistent procurement and spare-part replacement across multiple valves, simplifying maintenance strategy and reducing total cost of ownership. Application: Use across multiple lines in a single plant to standardize lockout devices and streamline technician training.
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FAQs
CR043D is designed to slot into standard CR04 pneumatic circuits with G3/4 porting, providing a 3/2, manually operated lockout valve that locks in the closed position. Installation steps are straightforward: mount on a compatible manifold or panel, connect G3/4 compressed air lines, and secure a padlock through the valve’s lockout feature. The integrated silencer remains in place during mounting, preserving noise reduction benefits. The design supports quick replacement and consistent spare parts across the CR04 family, reducing downtime during upgrades or maintenance.
CR043D delivers a full-flow path with a flow rate of 11120 l/min (392.7 scfm), suitable for high-demand pneumatic zones. It operates at temperatures from -30 to 80 °C (-20 to 175 °F), making it versatile for harsh environments. The valve is a 3/2 configuration, with aluminium body and nitrile rubber elastomers, ensuring robust performance and dependable actuation under typical factory conditions.
CR043D excels in maintenance shutdowns and safety-critical isolation of pneumatic lines across manufacturing, automation, and process environments. Its padlockable closed-position design supports OSHA lockout/tagout procedures, reducing the risk of unexpected actuation during servicing. It’s well suited for panel installations in automated lines, where quiet operation and reliable flow are essential for safe, efficient production cycles.
The available data highlights OSHA lockout/tagout compliance via the padlockable closed-position feature, aligning with 29 CFR Part 1910. However, the datasheet does not list SIL, CE, or IP ratings. Practitioners should verify site-specific certification requirements with their supplier and rely on the device’s safety interlock and lockout capability to meet regulatory expectations for maintenance safety.
Maintenance considerations include inspecting the aluminium body and nitrile elastomer seals for wear, verifying padlock security, and confirming the integrated MB006B silencer remains intact for noise reduction. ROI comes from reduced downtime during maintenance, improved safety compliance, and standardized parts across the CR04 range that lower spare-parts inventory costs and simplify technician training and installation.