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We produce sucker rod coupling and crossover, tubing coupling and crossover as well as casing
coupling and crossover.
1. The mechanical strength is high and the comprehensive property is good.
2.The thread is formed by special cold-extrusion, with high precision,reliable operation and long service life.
Tubing pup joints,crossovers and couplings conform to API Spec 5CT “Specification for Casing and Tubing, API Spec 5B“Specification for Threading,Gauging and Thread Inspection of Casing,Tubing And Line Pipe Threads”and other related standards. The company can produce plain and EUE tubing pup joints, crossovers and couplings of steel grades J55,N80 and L80.
Technical Features
The product material is of high mechanical strength and good comprehensive performances.
The thread is processed by special CNC machine, with high accuracy of manufacture , good reliability and long service life.
The coupling is made by phosphating and zinc plating surface treatment process, with good properties of anti corrosion and thread anti-galling.
Main Technical parameters
油管接箍 Couplings | Size规格 in | 最大外径Max. OD in(mm) | Min length最小长度 in(mm) | 钢级Grade | ||
平式 NU | 外加厚EU | 平式NU | 外加厚EU | |||
23/8 | 2.875(73.03) | 3.063(77.80) | 41/4(107.95) | 47/8(123.83) | J55 N80 | |
27/8 | 3.500(88.90) | 3.668(93.20) | 51/8(130.18) | 51/4(133.35) | ||
31/2 | 4.250(108.00) | 4.500(114.30) | 55/8(142.88) | 53/4(146.05) | ||
变扣Crossovers | J55、N80、L80等钢级的各类变扣接头、异径接箍 All kinds of crossovers, connections and sub-couplings of grades J55, N80 and L80 | |||||
抽油短杆外径Sucker rod OD in(mm) | 5/8（15.88） | 3/4（19.05） | 7/8（22.23） | 1（25.40） | 1 1/8(28.58） |
螺纹公称外径 Thread nominal thread in(mm) | 15/16 | 1 1/16 | 1 3/16（30.16） | 1 3/8 （34.93） | 1 9/16（39.69） |
抽油杆接箍外径 Coupling OD in(mm) | 1 1/2（38.10） | 1 5/8（41.28） | 1 13/16 （46.04） | 2 3/16 （55.56） | 2 3/8（60.33） |
ADD：Room 610, Fortune Plaza, Yungang Road, Aviation Economic Zone
PHONE：+86 156 1779 7655 ; +86 187 9070 1558
TEL：+86 371 85304855
