BTC Coupling 11-3/4 Inch Casing Collar
BTC Coupling 11-3/4 Inch casing collar Product Introduction Product Specifutio n Production Details Production Flow Chart Product Package Exhibition ecchange FAQ Q1: How long is your delivery time? According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it...
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BTC Coupling 11-3/4 Inch casing collar Product Introduction
Coupling inspection. The coupling surface must not be severely scored. Pay attention to the end surface damage caused by the impact of the elevator. Attention should be paid to the number of exposed threads on the original thread, which cannot be used beyond the standard, and should generally be less than 2.5. Excessive torque on the buckle is one of the main causes of coupling damage. Visual inspection of special threads with fingers is feasible. Minor nicks should be repaired, and longitudinal nicks will affect sealing performance. When the maximum torque has been applied and there is excessive residual buckle, check the ovality of the coupling. The outer caliper is used to measure in several directions, and the ovality of the pipe body is considered to be qualified if it passes the inner diameter gauge. When the grade of steel is not clear, you should look for the stamp on the coupling.
Product Specifutio n
coupling OD （mm）
50.1 Production Details
NU tubing collar
Production Flow Chart Product Package
Seperate Line FAQ Q1: How long is your delivery time?
According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if the goods are not in stock
Q2: What is your terms of payment ?
30% T/T in advance ,balance before shippment.
Q3: Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q3: the terms?
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