Photos of the Mokena Fire Protection District's ambulance refurbishment were taken from the Alexis Fire Apparatus website. These images give a glimpse into the ongoing process of updating and modernizing emergency response equipment to ensure it meets the latest safety and efficiency standards. Alexis Fire photo
Coupling
Tubing and Casing couplings are the joining of two short length pipe, mainly used for the connection and repair of oil pipe and downhole tools
Tubing and couplings thread types : Non-upset thread(NU), External- upset thread(EU);
Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC)
Grade: K55,J55,N80-1,N80Q,L80-1,P110,etc.
Pup joint
Tubing and casing pup joints are machined according to the latest version of API SPEC 5CT. The steel grade includes J55,K55,N80-1,N80Q,L80-1,P110,etc. There are two types of thread widely used in tubing pup joint namely Non-upset thread(NU), External- upset thread(EU);
Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC).
Our testing and inspection method system is complete, using a whole set of thread instrument to inspect taper, pitch, tooth, height, tooth type,etc. The products have passed the identification of china petroleum pipeline. Quality supervision ,inspection and testing center and gained the unanimous praise from the customers.
crossover
Crossover coupling any size ,length ,grade and weight is available on customer request.
X-Over Coupling,X-Over Crossover,Oil Well Tubing,Tubing Pipe Coupling Henan Dongfanglong Machine Manufacture Co., Ltd , https://www.dfloilm.com