Couplings are used to connect two joints of TUBING coupling or CASING pipe together.
Couplings are short length of heavy wall pipe with the same threads on each end.
The steel coupling is mainly used to connect oil pipes in pil drilling.
This product can be used to connect the shafts of units that are
manufactured separately.
It can fit the misalignment of the shafts or introduce mechanical flexibility.
The pipe coupling is capable of reducing the transmission of shock losds from one shaft to another.
It can also introduce protecyion against overloads.
The steel coupling can be used to alter vibration characteristics of
rotating units.
Pipe coupling is also used to connect drilling par and driven part.
Tubing Coupling Scheme,Api Coupling,Eue Coupling,Api Line Couplings ESASTSUN OILFIELD EQUIPMENT MANUFACTURING (CAMBODIA) CO., LTD , https://www.eastsuncambodia.com
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
Aohai Marine Fitting Co., Ltd mainly produce Super cell fenders (SC type), Cone fenders, Super Arch fenders (type SA), Cylindrical fenders (Type Y), Semi-circular fenders (Type D), Type GD fenders, Type I fenders, Type U fenders,Turn cell fenders, Type Ï€ rubber fenders, Rubber ladder, Rubber fenders for tug boats, penumatic rubber fenders, airbags, PVC yacht fenders etc.Â
Certificate: ABS, LR, BV, NK, DNV, RINA, RS, IRS, CCS etc.  
2.Product description
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
A belt of strengthening rubber fender, including made of rubber fender  subject, in this type fender subject in the cross of the ring to set multi layer cord layer. The utility strengthening the layer this type rubber fender, installation is simple, convenient maintenance, strength big, not easy aging, bottom width of small size, reaction force moderate, absorb energy, resist collision, buffer performance is good, not easy to break, good flexibility, corrosion resistance, high strength and long service life. Can be widely used on ship, dock and port protection. 
3.Detailed data
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
Compared with common cell rubber fender, super cell rubber fender raised design compression 5%, thus maintain the reaction force while increase energy absorption value 17%.
The equipped steel frontal panel can greatly reduce the hull pressure, which makes it specially proper for the berthing of large ship.
UHMW-PE pad bolted on the steel frontal panel can lessen the friction factor between ship and fender system and reduce the shear force caused during ship berthing therefore prolong the fender system service life.
4.Packing and delivery
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
5.Application
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
1.Bulk terminals
2.Offshore platforms
3.Container berths
4.General cargo berths
5.Features of Super Cell rubber fender
6.High performance
7.Can support large panels
8.Strong, well-proven design
9.Low hull pressure systems
10.Wide choice of rubber compounds
6.Our advantage
Product name:qingdao factory Cell Rubber Fender/ Marine Fender
1. On the basis that counterforce do not increase, if deflection distance augments by 13%, energy absorption will rise by 17% while counterforce energy absorption ratio (E/R@H) of each unit will go up by 15%.
2. Among stress fender series, TD-A fender owns the highest energy absorption for each unit;
3. Frontal berthing is fixed on frontal fender in an effort to alleviating stress acted upon sides of ship. According to specific demand, surface stress can drop to as low as 25t/m2. Thus, it is particularly suitable for berthing of large vessels.
4. Owing to high reaction force energy absorption per unit, it is can excellently meet the requirements of open sea wharf and dolphin type berth.
5. Among stress rubber fender series, TD-A cell fender possesses relatively small inclination and stress change in performance;
6. PE frontal pad is fixed in the front of frontal berthing to lower friction coefficient and reduce the shear force in berthing by large margin.
7.Contact us
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EASTSUN manufactures tubing coupling and casing tubing coupling strictly comply with API 5CT latest standard.
Size
Grade
NUE
EUE
Special clearance
2 3/8"
J55/K55/M80/L80/P110
Yes
Yes
Yes
2 7/8"
J55/K55/M80/L80/P110
Yes
Yes
Yes
3 1/2"
J55/K55/M80/L80/P110
Yes
Yes
Yes
4"
J55/K55/M80/L80/P110
Yes
Yes
4 1/2"
J55/K55/M80/L80/P110
Yes
Yes
Qingdao Factory Cell Rubber Fender/ Marine Fender
Model NO.: AH-CF11
HS Code: 40169990, 40169990
Spare Parts: Chain;Shackle; U-Ring
Color: Black, Grey
Designed Deflection: 70% - 72%
Applications: Workboats Tugboats Quays Pontoon
Trademark: AOHAI
Transport Package: Export Packing
Specification: Sc400h-Sc3000h
Origin: China
1.Main products