Spiralink Coupler 1/2"x1/2"CCW

Crown Engineering H24-30 Spiralink Coupler – 1/2" x 1/2" CCW Circulator Coupling

The Crown Engineering H24-30 Spiralink® Coupler is a durable, high-performance replacement for traditional 4-spring “fly-away” couplings commonly used in hydronic circulator pumps. Designed as a permanent upgrade, Spiralink eliminates the noise, wear, and early failure associated with old-style spring couplings found in Bell & Gossett (B&G) circulators and compatible models by Armstrong, White-Rodgers, Taco, and others.

Featuring a single-spring, one-piece design, the Spiralink coupler functions as a universal joint with 3-dimensional flexibility, allowing it to compensate for virtually any degree of shaft misalignment. This design reduces friction, minimizes vibration, and protects bearing assemblies by lowering torque loads on bearings and seals. It also prevents damage caused by broken or failed couplings, extending the service life of both the motor and pump.

Easy to install—even in tight or awkward locations—the H24-30 Spiralink coupler is a preferred solution for HVAC and hydronic professionals seeking reliability and long-term performance.

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Product Features & Benefits

• Permanent replacement for 4-spring “fly-away” couplings

• One-piece, single-spring Spiralink® design

• 3-dimensional flexibility compensates for shaft misalignment

• Reduces noise, vibration, and premature wear

• Protects bearings and seals by reducing torque load

• Easier and faster to install than traditional couplings

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Technical Specifications

• Brand: Crown Engineering

• Model: H24-30

• Product Type: Coupling

• Coupler Type: Spiralink®

• Shaft Size: 1/2" x 1/2"

• Motor Rotation: CCW (Counter-Clockwise)

• Circulator Horsepower: 1/12, 1/6, 1/4, 1/3 HP

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Replacement Compatibility

Replaces the following B&G and Armstrong part numbers:

• 118705

• 189110

• 118723

• 806026

• 806168

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Applications

• Hydronic heating circulator pumps

• Bell & Gossett (B&G) circulators

• Armstrong, White-Rodgers, Taco, and compatible pump models

The Crown Engineering H24-30 Spiralink Coupler is a proven, long-lasting solution that improves reliability, reduces maintenance, and enhances overall circulator performance in hydronic HVAC systems.