STEEL BALL VALVE ASTM, NACE, ASME, and API standards..

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Specifications

1. ASTM, NACE, ASME, and API standards..

 

                                                                             The Discription of Ball Valve

 

Product Description

  

 

  • Technical Specification

 

Design standardAPI Spec 6D 6A
Pressure and temperature ratingASME B16.34
Face-to-face and end-to-end dimensionsAPI 6D ASME B16.10
Material specificationASTM A105, LF2, F316, F316L, F304, F50, F51, 1040
4140, 410, 17-4PH, INCONEL, MONEL….
NACE-MR-0175
Flanged ends standaredASME B16.5, ASME B16.47, MSS SP-44
Welding ends standardASME B31.4, ASME B16.25
Pressure testingAPI 6D, API 598, BS 6755
Toughness testingASTM A370
Fire testingAPI 607
Anti-static deviceBS 5351
MTASME B16.34, ASTM A275
PTASME B16.34, ASTM E165
UTASME B16.34, ASTM A388
Nominal SizesNPS 12 Reduced Bore
Pressure Class600LB
ConstructionTrunnion Mounted


  • Design Standard

  1. ASTM, NACE, ASME, and API standards;

  2. Satisfying the strict requirements of petroleum refineries, chemical processing plants, power-generating plants, pulp and paper, food processing, mining and other critical applications.

  • Quality Control

  1. Our comprehensive evaluation includes on-site audits, inspection at the source, receiving inspections, and destructive material testing.

  2. The ongoing process, led by our in-house metallurgist and QA/QC team, ensures that CMEC Valve is manufactured to the highest industry standards.

Workshop

  1. More than 20 years experience

  2. 40 sets of advancing CNC drilling and milling machine, 15 sets of machining center, 5 sets of CNC grinding machine and 3 sets of automatic welding machine.

  3. Highest accuracy and low emission.

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Q:What kind of argon arc welding wire is used for 16Mn steel pipe?
16Mn steel belongs to carbon manganese steel, the content of carbon is about 0.16%, and the yield point is equal to 343MPa (strength grade is 343MPa). 16Mn steel alloy content is less, good weldability, welding generally without preheating. But because the 16Mn steel hardened tendency is slightly larger than the low carbon steel, so at low temperatures (such as winter outdoor operations) or welding in high rigidity, large thickness of the structure, in order to prevent the cold crack, need to take measures to preheat.
Q:What type of steel pipe dance is used in general?
According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters.
Q:How can seamless steel tubes be produced?
Seamless steel tubes are made of ingots or billets made by piercing and are then made by hot rolling, cold rolling or cold casting. Seamless steel tube plays an important role in the steel tube industry of our country. According to incomplete statistics, China's existing seamless tube production enterprises about more than 240, seamless steel pipe units about more than 250 units, with an annual output capacity of about about 4500000 tons. From the caliber, 35% of phi 76, less than phi 159-650, accounting for 25%. From the species point of view, the general use of 1 million 900 thousand tons of pipe, accounting for 54%; oil pipe 760 thousand tons, accounting for 5.7%; hydraulic props, precision pipe 150 thousand tons, accounting for 4.3%; stainless steel pipe, bearing tube, automobile tube 50 thousand tons, accounting for 1.4%.
Q:Fastener type steel pipe scaffold external parts name
Fastener type steel pipe scaffold fastener malleable iron casting should be adopted, its basic form has three kinds: vertical cross bar for a connection between the rectangular fastener, fastener for rotating connecting parallel or oblique bars and rods for butt joint butt joint fastener.
Q:When can I use the PVC pipe and when to use the galvanized pipe?
PVC pipeline use temperature is -5 to 90 degrees or so, according to the current market price of around 6000 yuan per ton, the price is cheap. Its corrosion resistance is good, can resist most of the acid and alkali, and unlike the steel pipe that is easy to rust, so in the construction of the upper and lower water pipes and other fields have gradually replaced the trend of steel pipe.
Q:Seamless steel tube 89X4 meters, how heavy?
Generally seamless steel pipe wall thickness will be uneven, according to the theory, each meter is 8.3844 kilograms, but if the wall thickness is poor 20--30 wire, then the weight will increase some
Q:Is the electric pipe used with steel pipe or PVC pipe?
Electric pipe laying is generally divided into the following circumstances:1) the explosion-proof area must be galvanized steel pipe and explosion proof flexible pipe (used for front end equipment connection);2) non explosion-proof area can use KBG pipe or PVC tube, the former is higher cost, but the installation is firm, the latter is low cost, easy to construction, and in the rain where it will not rust, but compared to the KBG pipe may be damaged.
Q:Steel pipe is particularly long, how to clean the inner wall of the pipe so that it can be thoroughly cleaned
If the pipe is relatively long, you have water, you can buy ultrasonic vibration plate into the water for ultrasonic cleaning, if not too long with an ultrasonic vibration rod, inserted into the pipe cleaning, and then rinse with water by ultrasonic stripping of dirt, give you recommend a factory in Jining Hengda
Q:How seamless steel tube is formed?
Overview of two kinds of steel pipe process:1, cold drawing (rolling) seamless steel pipe: round tube to heating to perforation, annealing, pickling, leading to oil (copper), multi pass drawing (Leng Zha), the blank pipe, heat treatment, straightening, pressure test (testing), marking and warehousing.2. Hot rolling (extrusion seamless steel tube): round tube billet, heating, piercing, three roll cross rolling, rolling or extrusion, removal of pipe, sizing, reducing (diameter or reducing), cooling, blank tube, straightening, water pressure test (or flaw detection), marking and warehousing.
Q:DN150 welded steel tubes one meter multiple
Calculated theoretical weight (Kg) per inch of welded steel pipe = (outside diameter wall thickness) * wall thickness * 0.02466DN150 welded pipe, "150" means nominal diameter of 150mm. Its outer diameter is 165mm.

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