Casing & Tubing Pipe and Sucker Rod Couplings and Crossovers Price

Couplings are short lengths of pipe used to connect two joints of tubing or casing, which are painted with color codes on their external surface to indicate their grades.

Tubing Coupling

Tubing Coupling can be widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc. It has already replaced welding fittings in most Europe countries, Asia countries, America, Australia and some other countries.

1. Standard: API

2. Size: 2 3/8” --- 20”

3. Steel grade: J55, C75, L80, N80, C95, P110, etc.

4. Thread: NU, EU, STC, LTC and BTC

5. Classification: Upset, non Upset, external upset

6. Parameters

Casing coupling

A short length of pipe used to connect two joints of casing. A casing coupling has internal threads (female thread form) machined to match the external threads (male thread form) of the long joints of casing. The two joints of casing are threaded into opposite ends of the casing coupling.

1. Standard: API

2. Size: 4 1/2” --- 20”

3. Steel grade: H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR

4. Thread: STC, LTC and BTC

5. Parameters

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

Polished rod coupling

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

Our Team

Zhengzhou Maierda Petroleum Equipment Co., Ltd., located in Central China, is a professional supplier of oilfield equipment and accessories.

Our factories have more than 15 years experiences of manufacturing oilfield equipment and accessories.

Our sales team has more than 10 years importing & exporting experiences in oil & gas industry.

Our Products

We are specialized in oilfield equipment and accessories including casing centralizers, float equipment, stage collars, cementing plugs, cementing heads, cement baskets, casing & tubing pipes, sucker rods, drill pipes, drill collars, pumping units, 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.

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