Thanks for your reply.
The plant is operating with Henkel supplies. They are going to visit us the next week, after some claims.
The values are.
Free Acid 1.6
Total Acid 11.5
Iron Content 0.33
I´m only familiar with API, TENARIS & GrantPrideco threads.
Te main diference between API and premium conection is that the second one has a shoulder where the pipe make seal to the coupling. Therefore the make-up is made by torque and toque-shoulder
Api has no shoulder so the make-up is made...
Hi,
Since I am a mcechanical engineer and I have to assist a mn-phosphating line for carbon steel couplings.
It is operating temperature is about 97 degree C.
However, it is need to improve the photphating layer thinkness.
Would like provide the appropriate material to study about this...