How to Install the A1 Single Cartridge Seal | Step-by-Step Guide with Video
A1 Single Cartridge Seal Installation Guide
Installing a mechanical seal doesn’t need to be complicated. The Paradigm Seals™ A1 Single Cartridge Seal is designed for simplified installation, improved reliability, and reduced downtime. By following the proper steps, operators can ensure correct alignment, secure fit, and long-lasting performance.
To make installation easy, we’ve prepared this step-by-step video and guide.
🎥 Watch the A1 Installation Video Tutorial
Step 1: Prepare the Pump
Lock out the pump and isolate it from service.
Remove the old seal or packing.
Clean the stuffing box, shaft, and gland surfaces thoroughly.
Inspect for wear or damage before continuing.
Step 2: Inspect the Seal
Verify that the seal size, bore, and face type match your pump specifications.
Check O-rings, springs, and seal faces for damage.
Apply a light lubricant to the O-rings.
Step 3: Install the Cartridge Seal
Slide the seal carefully onto the shaft and into the stuffing box.
Confirm the gland gasket is aligned with the stuffing box face.
Step 4: Align and Secure
Finger-tighten gland bolts evenly in a cross pattern.
Use the included click-style torque wrench to apply the correct torque without guesswork.
Verify that the Tri-Lock™ Bushing is properly engaged.
Step 5: Remove Setting Clips
After securing the seal, remove all setting clips.
Retain clips for future maintenance.
Step 6: Final Checks
Rotate the shaft by hand to ensure smooth movement.
Re-pressurize the system slowly and check for leaks.
Key Takeaway
The A1 Single Cartridge Seal is engineered for simplified installation using our signature innovations: FastGrip™, Tri-Lock™, and QuickCore+™. With the right preparation and tools, you’ll install with confidence and extend the life of your equipment.
Download the Full Installation Guide (PDF)
Download the Installation Visual Chart (PDF)
Paradigm Seals™ — Reliability Simplified.
