National Coupling :: Weldment Services


	National Coupling Company (NCC) has achieved great success over the past 30 years manufacturing hydraulic couplings for the oil and gas industry. During the course of 2007 we made a commitment to improve our manufacturing lead-time and decrease our outsourcing dependency with the ultimate goal of improving our level of customer service. In the past we have outsourced all of our welding requirements and subsequently operated from within our vendor’s capabilities and limitations. You spoke and we listened; finally we have a solution in place. NCC is proud to announce that as of 2008 coupling welding will be performed in-house. Our commitment to providing high quality products in a timely fashion remains a high priority. NCC welding procedures are compliant with NACE MR0175, API 6A, and ASME Section IX standards. Additionally, all qualification welding was witnessed and welding procedures were approved by Det Norske Veritas (DNV) to ensure our welding processes meet or exceed current industry standards. We have qualified weld procedures for welding austenitic, super duplex and Nitronic© series stainless steels, along with nickel alloys. The NCC weldment procedure begins with the ultrasonic cleaning of the tubing prior to the actual welding process. All welds are fully inspected and documented by independent material inspection services using the latest non-destructive examination techniques. Each welded assembly is serialized and pressure tested with a digital data acquisition system to verify weld integrity. All welded assemblies are flushed to an NAS Class 6 cleanliness level. The finished assemblies are then hermetically sealed to prevent any ingress of contaminants and prepared for shipment. A complete documentation package that includes test results and pertinent material certificates accompanies all NCC welded assemblies. With the addition of in-house welding at NCC our customers will continue to receive the same great quality they have come to expect. By providing this turn-key service we are confident this solution will enable us to increase manufacturing capacity and improve on-time deliveries, as well as enhance our emergency response capabilities as we strive for a higher level of customer service.