Armstrong 807436-001 Flexible Insert Coupler 1/2" x 1/2" for Circulator Pumps

The Armstrong 807436-001 is a flexible insert-type coupler designed for Armstrong circulator pumps. This maintenance-free coupler assembly features a 1/2 inch x 1/2 inch bore configuration and provides reliable shaft coupling for pump and motor connections.

Key Features:

• Flexible insert design with replaceable rubber sleeve for vibration dampening
• 1/2 inch x 1/2 inch connection size
• Maintenance-free operation with no alignment required
• Two coupler flanges with setscrew mounting system
• Quieter operation compared to spring-type couplers
• Easy installation with included rubber insert

Compatible Models:

• Armstrong Series 1050 pumps
• Armstrong H-51 and H-51AB circulators
• Armstrong H-52 and H-52AB circulators
• Single phase motor applications

This coupler replaces Armstrong part number 807436-000 and cross-references to Bell & Gossett 118473. The flexible coupling design eliminates the need for precise shaft alignment during installation, reducing setup time and ensuring proper operation. The replaceable insert design allows for easy maintenance when needed.