Our sucker rod couplings are up to API Spec 11B standard, including class SM sucker rod coupling, class T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling. All of the couplings are availbale in 5/8", 3/4", 7/8", 1" and 1 1/8" and manufactured with high quality Carbon steel AISI 5140. The surface alloy thermal spray coating process of our spray metal coupling has reached the international advanced level.
1. API 7/8”*1” Class SM Full Size Sub Sucker Rod Coupling
1)Material: Seamless Alloy Steel 40Cr (AISI 5140)
2)Standard: API Spec 11B
3)Specification:
O.D.: 2-13/16”(55.56mm)
Length: 4.5”(114.3mm)
Weight: 1.43kg
4)Other Size: 5/8”*3/4”;3/4”*7/8”;1”*1-1/8〞
5)Features: It is used to connect different sizes of Sucker Rods or to connect the Polished Rod to Sucker Rod string.
2. API 7/8”*1” Class SM Slim Hole Sub Sucker Rod Coupling
1)Material: Seamless Alloy Steel 40Cr (AISI 5140)
2)Standard: API Spec 11B
3)Specification:
O.D.: 2”(50.8mm)
Length: 4.5”(114.3mm)
Weight: 1.10kg
4)Other Size: 5/8”*3/4”;3/4”*7/8”;1”*1-1/8〞
5)Features: It is used to connect different sizes of Sucker Rods or to connect the Polished Rod to Sucker Rod string.
3. API 7/8”*1” Class T Full Size Sub Sucker Rod Coupling
1)Material: Seamless Alloy Steel 40Cr (AISI 5140)
2)Standard: API Spec 11B
3)Specification:
O.D.: 2-13/16”(55.56mm)
Length: 4.5”(114.3mm)
Weight: 1.43kg
4)Other Size: 5/8”*3/4”;3/4”*7/8”;1”*1-1/8〞
5)Features: It is used to connect different sizes of Sucker Rods or to connect the Polished Rod to Sucker Rod string.
4. API 7/8”*1” Class T Slim Hole Sub Sucker Rod Coupling
1)Material: Seamless Alloy Steel 40Cr (AISI 5140)
2)Standard: API Spec 11B
3)Specification:
O.D.: 2”(50.8mm)
Length: 4.5”(114.3mm)
Weight: 1.10kg
4)Other Size: 5/8”*3/4”;3/4”*7/8”;1”*1-1/8〞
5)Features: It is used to connect different sizes of Sucker Rods or to connect the Polished Rod to Sucker Rod string.
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