Plastic Tubing Thread Protectors 3 1/8" For Protecting Steel Drilling Pipe / OCTG

1. How should the 3-1/8 inch reference be confirmed?
Mark the dimension on the connection or protector drawing, including its meaning and tolerance.
Identify the pipe family and full connection designation so the sample is checked against the intended pipe end.
2. What should accompany a pipe-end sample?
a. Pipe family: tubing, casing or drill pipe.
b. Full connection designation and drawing revision.
c. Pin or box orientation and intended quantity.
d. Meaning of the 3-1/8 inch dimension.
e. Required engagement, seating and coverage.
f. PP grade, color and storage conditions.
g. Marking, packing and any additional acceptance checks.
3. What should be checked during sample fitting?
1. Start engagement without forcing or cross-threading.
2. Check seating and clearance around adjacent pipe surfaces.
3. Confirm the required thread area is covered.
4. Verify removal and inspect engagement surfaces afterward.
5. Record any dimension changes for a revised drawing and sample.
4. How should an approved sample support repeat orders?
1. Retain its item reference and drawing revision.
2. Confirm the ordered pipe connection remains the same.
3. Review changes in material, geometry or marking before production.
4. Pack by approved connection and end orientation.
5. Inspect received protectors for damage and matching identification.
Other pipe sizes and oilfield accessories require their own connection and sample review.
Send the marked 3-1/8 inch reference drawing, connection details or matching pipe-end sample for a PP protector quotation.