API oilfield NC threading plastic & steel thread protector for tubing, casing and drilling pipe
Description of the API thread protector
| Product Name | Thread Protector |
| Model Number | 2-3/8” to 20” |
| Certification | ISO, API |
| Processing Type | Injection |
| Use | Oil production |
| Material | Plastic, Steel |
| Thread type | Tubing 2-3/8” to 4-1/2”, EUE NUE |
| Casing 4-1/2” to 20”, STC LTC BTC | |
| Drilling pipe 2-3/8” to 8-5/8” REG | |
| Color | As requested |
The API composite thread protector is made of a threaded low density or high-density polyethylene bumper, which absorbs the impact shocks and a steel shell rolled over the front edge, which insures a superior protection against hazard.
The composite thread protector is available either in the open end or closed end version, liftable or non-liftable. The liftable protectors allow moving of the tubes using hooking devices and in the same time keep the tube thread and coating undamaged. The closed end protectors may have an optional vent hole designed to keep the inner pressure equal to the outer pressure. The vent hole may also have a filter, which prevents the intrusion of the foreign particles.
The composite design of the composite thread protector (steel shell and high density polyethylene bumper) insures the protector integrity within the temperature range given by the API 5CT standard (-46ºC÷66ºC). Their design allows easy setting and removing using a tube wrench.
Specifications for API composite thread protector
| composite thread protector | NC26 (2 3/8″IF) | composite |
| NC31 (2 7/8″IF) | composite | |
| NC38 (3 1/2″IF) | composite | |
| NC46 (4″IF) | composite | |
| NC50 (4 1/2″IF) | composite | |
| 5 1/2″FH | composite |
Raw material and manufacturing process
Company Brief Introduction
The company keeps on the Quality is the first. All of products are designed and processed meeting API Specifications. Quality Management System has been set up to ensure the whole process being properly controlled.
Our market distribution
Since 2005 Tech has supplied petroleum machinery products to foreign oilfield market such as,,,,,, and etc.
Our main products are as follows: subsurface sucker rod pump, sucker rod, tubing crossover, tubing/casing couplings, stuffing box, thread protector, packings, float shoe and float collar etc.




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Step 1
Payment and order readiness
Minimum order: 50 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
30 days
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Step 3
Packaging and dispatch
Packaging details are available on request.
Final packing, freight, and delivery dates are confirmed before dispatch.
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