
Crown Engineering H24-30 Spiralink Coupler
The Crown Engineering H24-30 Spiralink Coupler is a heavy-duty, one-piece alternative to traditional 4-spring "fly-away" couplings found in hydronic circulator pumps. Engineered for 1/2" x 1/2" shaft sizes, this CCW (Counter-Clockwise) coupler features a unique single-spring design that provides 3-dimensional flexibility. This allows the assembly to act as a universal joint, compensating for shaft misalignment that typically destroys standard couplings. By reducing friction and vibration, the H24-30 lowers the torque load on pump bearings and seals, significantly extending the service life of both the motor and the Bell & Gossett or Armstrong circulator. It is a direct technical upgrade for B&G 118705 and Armstrong 806026, providing a more stable connection for motors ranging from 1/12 HP to 1/3 HP. This part eliminates the noise and premature failure associated with multi-part spring designs, making it the preferred hydronic pump coupling replacement for field technicians.
Key Benefits for HVACR Contractors
- Eliminates Mechanical Noise: The one-piece Spiralink design removes the rattle and vibration common in aged 4-spring couplings.
- Broad Compatibility: Direct replacement for Bell & Gossett 118705, 189110, 118723 and Armstrong 806026, 806168.
- Protects System Components: Reduces radial and axial loads, preventing bearing assembly wear and seal leaks.
- Universal Joint Performance: Provides 3-dimensional flexibility to maintain power transmission even with minor motor-to-pump misalignment.
- Simplified Installation: Single-piece construction means no loose springs or clips to manage during circulator pump repair.
Common Questions
Which pump brands is the H24-30 compatible with?
This coupler is designed for 1/2" x 1/2" shafts on Bell & Gossett (B&G), Armstrong, Taco, and White-Rodgers hydronic circulators. Always verify your shaft diameter and rotation before installation.
What is the difference between this and a standard spring coupler?
Standard couplings use four separate springs that can fatigue and fly apart (fly-away). The H24-30 Spiralink uses a continuous single-spring body that is more durable and better at absorbing torsional vibration.
Does rotation matter for the Spiralink coupler?
Yes. The H24-30 is for CCW (Counter-Clockwise) rotation as viewed from the lead end of the motor. Installing on a CW motor will cause the spring to unwind and fail under load.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Crown Engineering H24-30 Spiralink Coupler
The Crown Engineering H24-30 Spiralink Coupler is a heavy-duty, one-piece alternative to traditional 4-spring "fly-away" couplings found in hydronic circulator pumps. Engineered for 1/2" x 1/2" shaft sizes, this CCW (Counter-Clockwise) coupler features a unique single-spring design that provides 3-dimensional flexibility. This allows the assembly to act as a universal joint, compensating for shaft misalignment that typically destroys standard couplings. By reducing friction and vibration, the H24-30 lowers the torque load on pump bearings and seals, significantly extending the service life of both the motor and the Bell & Gossett or Armstrong circulator. It is a direct technical upgrade for B&G 118705 and Armstrong 806026, providing a more stable connection for motors ranging from 1/12 HP to 1/3 HP. This part eliminates the noise and premature failure associated with multi-part spring designs, making it the preferred hydronic pump coupling replacement for field technicians.
Key Benefits for HVACR Contractors
- Eliminates Mechanical Noise: The one-piece Spiralink design removes the rattle and vibration common in aged 4-spring couplings.
- Broad Compatibility: Direct replacement for Bell & Gossett 118705, 189110, 118723 and Armstrong 806026, 806168.
- Protects System Components: Reduces radial and axial loads, preventing bearing assembly wear and seal leaks.
- Universal Joint Performance: Provides 3-dimensional flexibility to maintain power transmission even with minor motor-to-pump misalignment.
- Simplified Installation: Single-piece construction means no loose springs or clips to manage during circulator pump repair.
Common Questions
Which pump brands is the H24-30 compatible with?
This coupler is designed for 1/2" x 1/2" shafts on Bell & Gossett (B&G), Armstrong, Taco, and White-Rodgers hydronic circulators. Always verify your shaft diameter and rotation before installation.
What is the difference between this and a standard spring coupler?
Standard couplings use four separate springs that can fatigue and fly apart (fly-away). The H24-30 Spiralink uses a continuous single-spring body that is more durable and better at absorbing torsional vibration.
Does rotation matter for the Spiralink coupler?
Yes. The H24-30 is for CCW (Counter-Clockwise) rotation as viewed from the lead end of the motor. Installing on a CW motor will cause the spring to unwind and fail under load.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Shipping & Returns
Description
The Crown Engineering H24-30 Spiralink Coupler is a heavy-duty, one-piece alternative to traditional 4-spring "fly-away" couplings found in hydronic circulator pumps. Engineered for 1/2" x 1/2" shaft sizes, this CCW (Counter-Clockwise) coupler features a unique single-spring design that provides 3-dimensional flexibility. This allows the assembly to act as a universal joint, compensating for shaft misalignment that typically destroys standard couplings. By reducing friction and vibration, the H24-30 lowers the torque load on pump bearings and seals, significantly extending the service life of both the motor and the Bell & Gossett or Armstrong circulator. It is a direct technical upgrade for B&G 118705 and Armstrong 806026, providing a more stable connection for motors ranging from 1/12 HP to 1/3 HP. This part eliminates the noise and premature failure associated with multi-part spring designs, making it the preferred hydronic pump coupling replacement for field technicians.
Key Benefits for HVACR Contractors
- Eliminates Mechanical Noise: The one-piece Spiralink design removes the rattle and vibration common in aged 4-spring couplings.
- Broad Compatibility: Direct replacement for Bell & Gossett 118705, 189110, 118723 and Armstrong 806026, 806168.
- Protects System Components: Reduces radial and axial loads, preventing bearing assembly wear and seal leaks.
- Universal Joint Performance: Provides 3-dimensional flexibility to maintain power transmission even with minor motor-to-pump misalignment.
- Simplified Installation: Single-piece construction means no loose springs or clips to manage during circulator pump repair.
Common Questions
Which pump brands is the H24-30 compatible with?
This coupler is designed for 1/2" x 1/2" shafts on Bell & Gossett (B&G), Armstrong, Taco, and White-Rodgers hydronic circulators. Always verify your shaft diameter and rotation before installation.
What is the difference between this and a standard spring coupler?
Standard couplings use four separate springs that can fatigue and fly apart (fly-away). The H24-30 Spiralink uses a continuous single-spring body that is more durable and better at absorbing torsional vibration.
Does rotation matter for the Spiralink coupler?
Yes. The H24-30 is for CCW (Counter-Clockwise) rotation as viewed from the lead end of the motor. Installing on a CW motor will cause the spring to unwind and fail under load.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












