API 11b Class T and Class Sm Sucker Rod Coupling

• After-sales Service: Yes
• Warranty: 1 Year
• Manufacturing Process: Casting
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: High Quality Carbon Steel or Alloy Steel.
• Model NO.: Sucker Rod Coupling
• Machine Type: Oil and Gas Industry, Sucker Rod
• Processing Type: Forging
• Use: Oil Production, Oil and Gas
• Transport Package: Bundles
• Specification: 5/8" ~ 1-1/8"
• Trademark: JX PETRO
• Origin: Dongying
• Production Capacity: 500 Ton/Tons Per Month

Product Description

Product Description

Couplings
JX Petro sucker rod couplings, polished rod couplings and sub-couplings are engineered and designed to meet the challenges existing in today's rod-pumped applications. They are available in API Class T or SM, and in all Sucker rod sizes. JX Petro.  couplings are manufactured from special quality cold-formed steel extrusions or cold drawn seamless mechanical steel tubing. Sucker rod couplings, polished rod couplings and sub-couplings are available in full size, slimhole or oversize outside diameters with effective-width Enhanced Contact Face (ECF) designs.

Classification
The main types of sucker rod couplings are sucker rod couplings, polished rod couplings and sub-couplings.

1. Sucker rod couplings has same box thread size in both end.
2. The polished couplings are designed to connecting polished rod and sinker bars.
3. The sub-coupling is also called cross over coupling. It has different box thread size in both end.

Sucker rod coupling has same box thread size in both end.

Sub-coupling has different box thread size in each end.

Polished rod coupling has same box thread and vanish cone in both end.
All of the three types have two classes: class T and class SM.

1. The class T stands for Through-hardened.
2. The class SM stands for sprayed metal.

The outer diameter of the sucker rod couplings has full size and slim hole types..
Specification

1. Material: high quality carbon steel or alloy steel. (AISI 1045, AISI 4135).
2. Thread size: 5/8", 3/4", 7/8", 1" and 1-1/8".
3. Length: 4", 4.5" and 5".
4. Grade: T and SM.
5. Type: sucker rod coupling, polished coupling and sub-coupling.

Features

1. Good corrosion and wear resistance.
2. Black oxide coated for anti-galling and lubricating properties.
3. Automatic flame spray production minimize the tolerance.

Application

1. The sucker rod couplings are widely used in the oil industries for connection for sucker rod, polished rod, pony rod and sinker bars.
2. The sucker rod couplings are used for connecting the sucker rod and sinker bars with the same dimensions. But it is not used in the polished rods, which may cause the fracture of the couplings.
3. The polished couplings are designed to connect the polished rod and sinker bars.
4. The sub-coupling is widely used for the connection of different sizes of sucker rod, pony rod and sinker bars

Sucker rod couplings specification

Spec	Internal thread spec	Length	Outside diameter
			Full size	Slim hole
5/8"	15/16"	4"	38.1mm	31.8mm
3/4"	1-1/16"	4"	41.3mm	38.1mm
7/8"	1-3/16"	4"	46mm	41.3mm
1"	1-3/8"	4"	55.6mm	50.8mm
1-1/8"	1-9/16"	4.5"	60.33mm	N/M

Sub-couplings specifications

Spec	Internal thread spec		Length	Outside diameter
	Small end	Big end		Full size	Slim hole
5/8" × 3/4"	15/16"	1-1/16"	4"	41.3mm	38.1mm
3/4" × 7/8"	1-1/16"	1-3/16"	4"	46mm	41.3mm
7/8" × 1"	1-3/16"	1-3/8"	4.5"	55.6mm	50.8mm
1" × 1-1/8"	1-3/8"	1-9/16"	5"	60.3mm	N/M

Polished rod couplings

Spec	Internal Thread Spec	Length	Outside Diameter		Vanish Cone
			Full Size	Slim Hole
5/8"	15/16"	4"	38.1mm	31.8mm	9°
3/4"	1-1/16"	4"	41.3mm	38.1mm	9°
7/8"	1-3/16"	4"	46mm	41.3mm	9°
1"	1-3/8"	4"	55.6mm	50.8mm	9°
1-1/8"	1-9/16"	4.5"	60.3mm	N/M	9°

Package

1. The sucker rod couplings have two type of package.
2. In plastic paper and carton.
3. In wooden box.

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FAQ

1) How can I place order?

A: You can contact us by email about your order details, or place order on line.

2) How can I pay you?

A: After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.

3) What's the order procedure?

A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.

4)How do you take care when your clients received defective products?

A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

5)How do you check all the goods in the production line?

A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.