Api Spec 11b Parkerising Rod Couplings For Oil And Gas Operations
Sucker Rod Couplings
3. Float Collar & Float Shoe
5. Cementing Plug
7. Stage Collar
CLASS T Sucker Rod Couplings
The coupling blanks are manufactured or machined to the required dimensions and tolerances. They are then threaded using a cold-forming rolled thread tap and given a coating to enhance their anti-galling and lubrication properties. For applications that do not involve abrasion or corrosion-abrasion issues, it is recommended to use class T sucker rod couplings during installation.
Sucker rod couplings are offered in both API full size and slim hole configurations. Upon request, oversize couplings can also be provided.
CLASS SM Sucker Rod Couplings
Spray Metal is a superficial hardening process in which a nickel, chrome, boron and silicon based powder is applied on the base metal and later melted, resulting in a hard, dense and uniform surface with a very low friction coefficient and high corrosion resistance.
Class SM sucker rod couplings are recommended for installation where abrasion or corrosion-abrasion is a problem.
Sucker rod ouplings are available in API full size and slim hole. Oversize are available on request.
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
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