Black Plastic Thread Protectors , API Drill Pipe Thread Protector Caps
Black PP Drill Pipe Thread Protector Caps
Black PP thread protector caps cover matching drill pipe tool joint ends during transport and storage. Select the protector by full connection designation, pin or box end and approved drawing. Black color can identify the ordered finish, but it does not establish UV resistance, material grade or connection compatibility. Specify any outdoor storage requirement separately when selecting the PP formulation.
Material: polypropylene (PP). Color: black or another agreed color. Connection enquiries may include NC26, NC38, NC50 and selected REG references, subject to drawings and availability review. Confirm engagement length, seating clearance and thread coverage. The broad 2-3/8 to 20 inch nominal pipe range and BTC, STC and LTC casing references require separate enquiries and do not identify this drill pipe cap fit.
Packaging & Shipping
| Port: | Shanghai |
| MOQ: | 1000 pcs,Custom parts: 5000pcs |
| Packing: | bulk packing or custom packing |
| Payment: | Payment method to be agreed in the quotation. |
| Delivery time: | Delivery schedule to be agreed by connection, color, tooling and quantity. |
Other oil and gas industry accessories for choice:
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Shanghai Qinuo supplies molded plastic components and oilfield accessories. For black drill pipe caps, provide the connection drawing and distinguish color selection from material and storage performance requirements.
Review starting engagement, seating, removal and coverage on the matching tool joint. Agree identification marks so black caps for different connections can be separated reliably.
Approve the PP grade, color sample, molded dimensions and markings before batch production. If outdoor exposure matters, state duration and conditions along with the required material acceptance checks.
ISO 9001 applies to the quality management system. Connection compatibility and any UV, impact or environmental performance require product-specific requirements and verification; an API product certification is not implied.
FAQ
1. Does black color establish outdoor durability?
Color alone does not define the PP formulation or its resistance to sunlight and weather exposure.
State the intended storage duration, temperature and exposure conditions, then agree the material grade and applicable checks.
2. How should black caps for different connections be identified?
a. Mark the full tool joint connection designation.
b. Identify pin or box orientation separately.
c. Link markings to the approved drawing revision.
d. Record the material and batch reference.
e. Agree where markings may be placed on the body.
f. Label cartons by connection and end rather than color alone.
g. Confirm ordered quantities against the connection schedule.
3. What should sample approval cover?
1. Compare the sample with the approved connection drawing.
2. Review the agreed black finish or color sample.
3. Check starting engagement, seating and clearance.
4. Confirm coverage and removal on the intended end.
5. Define additional storage or handling tests separately where required.
4. What should be checked before reuse?
1. Confirm the connection and end orientation from identification.
2. Inspect for cracks, distortion and damaged engagement.
3. Clean contamination from engagement surfaces.
4. Check fit and required coverage again on the matching end.
5. Replace damaged or loose-fitting caps; color does not confirm serviceability.
Casing, tubing and other oilfield accessories require their own connection and material specifications.
Send the drill pipe drawings, color requirements and storage conditions for a black PP protector cap quotation.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.