API Downhole Tool Polished and Sucker Rod Couplings for Oil Well

• Manufacturing Process: Casting
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Cast Steel
• Usage: Sucker Rod Connection
• Standard: API Spec 11b
• Model NO.: polished rod coupling
• Materials: AISI5140 (High Quality Carbon Steel)
• Type: Full Size and Slim Hole
• Transport Package: Standard Export Packing
• Specification: 5/8" --- 1 1/8", or as required
• Trademark: MED
• Origin: China
• Production Capacity: 100000 PCS/Year

Product Description

API Downhole Tool Polished and Sucker Rod Couplings for Oil Well
Polished rod couplings are designed for connecting of the polished rod to the top rod of the string. Contrary to rod couplings, polished rod couplings have a female cone that eliminates the coupling twist-off in the course of operation.
1. Standard: API Spec 11B
2. Materials: AISI5140 (high quality carbon steel)
3. Coat thickness: 0.010in-0.020in
4.  Coat Material: Ni60A Alloy Coating
5. Type: Full size and slim hole
6. Coupling diameter: 5/8"; 3/4"; 7/8"; 1"; 1-1/8"
7. New product: Two-way globoidal protection sucker rod coupling;
               Full size sucker rod coupling with big chamfer
 

polished rod coupling
Size(in)	Coupling O.D W(mm)	Length L(mm)	Thread D.(in)	Vanish Cone	Hardness(HRA)
	(+0.13,-0.25)	(+1.57,-0.00)
5/8"	38.1	101.6	15/16"	9O	56-62
3/4"	41.28		1-1/16"
7/8"	46		1-3/16"
1"	55.6		1-3/8"
1-1/8"	60.33	114.3	1-9/16"

Sucker Rod Coupling
Couplings are manufactured from quenched and tempered micro alloyed steels. API couplings are furnished in two classes: Class T and Class SM (Spray Metal). The later has a superficial hardening
One sucker rod coupling must be processed by a few fabrication procedures, such as, Blanking, drilling hole, boring hole, milling, thread tapping, and so on. At the last step, do the surface treatment. The surface treatment includes black coating, phosphating or per the customers requirement. Besides, it has good anticorrosion and anti-friction property. The following table shows the related information about the sucker rod coupling

Parameters
Type	grade	O.D(mm)	Minimum lengh(mm)	Hardness	Weight(kg)	Standard
						reference
3/4"	19-T	41.05~41.43	101.6~103.17	56-62HRA	0.65	API 11B
7/8"	22-T	45.75~46.13	45.75~46.13	56-62HRA	0.8	API 11B
1"	25-T	55.35~55.73	55.35~55.73	12-23HRA	1.15	API 11B

Our Team
Zhengzhou Maierda Petroleum Equipment Co., Ltd., located in Central China, is a professional supplier of oil well equipment and tools.
Our factories have more than 15 years' experiences in the manufacturing of oil well equipment and accessories.
Our sales team has more than 10 years importing & exporting experiences in oil & gas industry.
Our Products
We are specialized in oil field equipment, tools and accessories including casing centralizers (bow spring, single piece, composite, stamped, positive, solid body, rigid, semi-rigid), tubing centralizers, sucker rod centralizers (guide), float equipment (collar, shoe), stage tools (collar), stop collars (ring), cementing plug, cement head, cement basket, couplings and crossovers (casing, tubing, sucker rod, polished rod), hammer unions, polished rod clamps, sucker rod, polished rod, pup joints, drill pipes, drill collars, etc.
We are committed to providing high-quality and cost-effective products and services to our customers.
Our Services
We guarantee and uphold the highest standards in customer service, client satisfaction, and quality product delivery in the oilfield industry.
Hope to have a good cooperation with you!