Product: 3″ SPM® Style Swivel Joint Repair Kit (Model 15 / 10)

1. Executive Summary: Revitalize Your Flowline Workhorse

The SPM® Style 3-Inch Swivel Joint is the backbone of the hydraulic fracturing and cementing industry. Whether rated for Model 10 (10,000 PSI) or Model 15 (15,000 PSI), these joints endure punishing vibration and abrasive flow. When they begin to leak or seize, replacing the entire joint is costly and unnecessary.

Royal Way 3″ SPM® Style Repair Kits offer a definitive rebuild solution. Engineered to be 100% Interchangeable with Weir SPM® Longsweep™ swivel joints, our kits provide the premium packing, anti-extrusion rings, and load-bearing balls needed to restore your iron to “like-new” condition. Trust Royal Way to extend the life of your assets and keep your fleet pumping.

2. Compatibility Guide: Model 10 & Model 15

One kit, dual application. Our seal geometry is precision-molded to fit the standardized packing bore of both pressure series.

• Size: 3-Inch (Nominal Pipe Size).

• Fits:

  • SPM® Model 15 (15,000 PSI) Longsweep Swivels.

  • SPM® Model 10 (10,000 PSI) Longsweep Swivels.

  • Generic SPM-Style Clones (Made by other API 6A manufacturers).

• Connection Styles: Fits threaded, butt-weld, and integral union end swivels (Styles 10, 50, 80, etc.).

⚠️ FITMENT GUARANTEE: We guarantee our packing rings and backup rings will seat perfectly in OEM SPM® ball races without trimming or forcing.

3. Kit Contents: The Anatomy of a Rebuild

A leaking swivel usually means worn seals AND worn bearings. Our kit addresses both.

1. Pressure Seal (Packing):

   • Design: Heavy-duty Lip Seal profile that energizes under pressure.

   • Material: 90 Durometer NBR (Standard) or HNBR (Sour).

2. Anti-Extrusion Ring (Backup):

   • Material: Zinc-Plated Steel or Stainless Steel.

   • Function: This metal ring is critical in SPM designs. It bridges the extrusion gap and supports the rubber lip, preventing blowout at 15,000 PSI.

3. Load Bearing Balls:

   • Qty: Complete sets for all races (typically 3 races for 3″ swivels).

   • Spec: Precision Chrome Steel bearings to restore smooth articulation.

4. Grease Retainer / Dust Seal:

   • Protects the races from external contamination.

5. Grease Fitting:

   • Standard Zerk fitting for lubrication.

4. Material Options: Tailored to Your Job

Option A: Standard Service (NBR / Buna-N)

• Color Code: Black Packing.

• Application: Standard Hydraulic Fracturing, Cementing, Water Transfer.

• Performance: Excellent abrasion resistance against frac sand. Compatible with water, drilling mud, and hydraulic oil.

• Temp: -20°F to +250°F.

Option B: Sour Gas / High-Temp (HNBR or Viton®)

• Color Code: Green (HNBR) or Orange (Viton).

• Application: Sour Gas (H2S) fields, Acidizing, or High-Temperature Flowback.

• Performance: Resists chemical attack and explosive decompression. Choose Viton® for acid service.

5. Technical Focus: The Metal Backup Ring

The secret to the SPM® design’s high-pressure capability is the Metal-to-Rubber interface.

• The Royal Way Difference: Unlike cheap aftermarket kits that use soft brass or plastic backups, we use High-Strength Steel backup rings, matching the OEM specification. This ensures the backup ring does not deform under the massive hydrostatic load of a 15,000 PSI test, guaranteeing a secure seal.

6. Operational Tips for Iron Recertification

• Check the Races: Before rebuilding, clean the ball races thoroughly. If the races are “brinelled” (dented) or deeply pitted, the new balls will not roll smoothly. The swivel body may need replacement.

• Grease Correctly: After assembly, rotate the swivel while injecting grease. This ensures the grease travels around the entire race and coats every ball.

• Torque Plugs: Ensure the ball race plugs are torqued to spec to prevent back-out during vibration.

7. Ordering Information

(Disclaimer: SPM®, Weir®, and Longsweep™ are trademarks of Weir Oil & Gas. Royal Way is an independent manufacturer of compatible aftermarket parts and is not affiliated with Weir.)