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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Damper External Drive Pin for Actuator Mounting
What damper models use this 212-degree link
Replacing a damaged or weathered knob is a critical maintenance step to ensure system integrity and point-of-use temperature safety without needing to replace the entire valve assembly
Industrial Durability: Constructed from high-grade elastomer materials designed to resist degradation from thermal cycling and common hydronic additives
the 22-133 mounting gasket resists aging and compression set
Johnson Controls DMPR-RS311 Fusible Link Damper External Drive Pin forAs a direct replacement for the legacy DMPR RS201, the Johnson Controls DMPR RS311 is a critical fire safety component engineered specifically for FD 1300 Series dynamic multi blade fire dampers. This 165 degree fusible link is designed to provide thermal triggered closure in high velocity HVAC systems, ensuring compliance with UL 555 and NFPA 90A standards. The DMPR RS311 functions as a mechanical release; once ambient temperatures reach 165F (74C),
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