MPI Ketos B-Type Ring | Magnetic Particle Testing Block | DC 12-Hole Test Ring BETZ Equivalent

• Ketos B Type Magnetic Particle Testing Block
• B Type MPI Test Ring
• 12-Hole DC Magnetic Particle Test Block
• BETZ Ring Equivalent Test Block
• Magnetic Particle Inspection Sensitivity Block
• DC Magnetization Test Ring
• NDT Magnetic Particle Testing Block

The Type B Magnetic Particle Testing Block (also referred to as the 12‑hole DC Test Ring) is equivalent to the American BETZ Ring.

It is used to verify the overall performance (system sensitivity) of magnetic particles and magnetic suspensions in magnetic particle testing equipment, as well as to evaluate the suitability of testing conditions and operating procedures. It is applied when the magnetization specification, magnetic field direction, and effective magnetization range cannot be determined.

This Type B test block is designed for verifying the comprehensive performance of magnetic particles under DC or three‑phase full‑wave rectified magnetization current.

• Center hole diameter: Φ31.8 mm
• Artificial defect hole diameter: Φ1.78 mm
• Surface distance: 1.78–21.34 mm