Recently, the National Customer Satisfaction Engineering Promotion Conference was held in Haikou City, Hainan Province. China National Heavy Duty Truck Big Tooth Co., Ltd. was awarded the title of “National Advanced Unit for Implementing Customer Satisfaction Engineering in 2012â€. This meeting was commended by the China Quality Association and the National Users Committee for 150 advanced companies nationwide. Previously, the China Quality Association organized experts on quality and professional aspects of the company in accordance with the "User Satisfaction Measurement Standards", compiled an evaluation plan based on the characteristics of the industry and the actual situation of the enterprise, and used sampling design, questionnaire design, selection survey, statistical data analysis, etc. The method compares the product quality and service quality of the Big Tooth Company with those of the same industry. In the end, the Big Tooth Company received a customer satisfaction index of 93.11 points, ranking among the best in the industry.
Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.
The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.
These flanges are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radiographed for flaw detection.
This flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).
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