First of all, don't throw pesticides everywhere. The purchased pesticides should not be mixed with food, fertilizer, seeds, etc., and should not be stored in places where people and animals often enter and exit (such as living room and kitchen), but should be stored in a cool, ventilated and dry place, especially children. A more subtle place that cannot be found (for example, it can be placed in a labeled counter or a special wooden box with a lock on the outside).
Second, regular inspection of pesticides. Strictly prevent the house where the pesticide is stored from collapsing or leaking, and see if the bottle cap of the pesticide is loosened. If it is loosened, it should be tightened in time. At the same time, pay attention to whether the packaging of the pesticide is broken or leaked, so as to be properly disposed. Avoid poisoning accidents caused by the volatilization of pesticides into the air.
Third, do not litter the pesticide bottles and bags after use. In rural roadsides, in the field, in ditches and puddles, it is often seen that some pesticide bottles and pesticide plastic bags with large and small residual pesticides are discarded. This is very dangerous, which not only destroys the environment, but also easily causes Human and animal poisoning. For the used pesticide packaging bags and medicine bottles, it can be treated by digging deep in the wild to prevent problems before they occur.
The consequences caused by improper storage of pesticides are unimaginable. Here, the author loudly appeals to farmers and friends to ensure that pesticides are properly kept, to overcome the ill-conceived ideas, to prevent the occurrence of pesticide poisoning accidents, and to create a safe production environment.
Butt welded pipe fittings are the most widely used pipe fittings. It is made of high-quality steel pipe and is formed by heating or pressing. Carbon steel pipe fittings are divided into carbon steel elbow, carbon steel tee, carbon steel cross, carbon steel reducer (large and small head), carbon steel head (cap) 5 series. The main implementation standards include GB, DIN, ASME, JIS, GOST. The biggest use of carbon steel pipe fittings is to connect pipes, Valves, pumps and other equipment to form a complete piping system.
When using, the pipe fittings are evenly welded with the flange or directly with the pipeline, so that the entire pipeline is integrated and starts to work normally.
Pipe fittings are widely used in water, beverage, beer, food, petrochemical, nuclear power, machinery, medical equipment, fertilizer, shipbuilding, waterproofing and other pipeline systems. It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments. The tube cap is also the end cap on the pressure vessel, which is a main pressure-bearing component of the pressure vessel. The quality of the cap is directly related to the long-term safe and reliable operation of the pressure vessel.
Types of butt welded fittings:
According to the model can be divided into: ANSI B16.9 ANSI B16.28 JIS B2311SGP DIN 2605, DIN2615 DIN2616 DIN2617
According to the shape, it can be divided into: elbow, tee, cross,
Reducer (large and small head), head (cap)
According to the thickness can be divided into: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
According to the process, it can be divided into: stamping, pushing
According to the material can be divided into: carbon steel, stainless steel, alloy steel
1: Put the high-quality steel pipe, the raw materials according to the required size, and put it into the ring-shaped intermediate frequency furnace to heat and push to form or place it on the mold and extrude it by the press.
2: Pass the shaped elbow blank through the special CNC lathe for pipe fittings according to the drawing. Welding groove processing is performed on the two ends of the elbow blank, with a certain angle and a certain edge, and the angle and deviation range are strictly in accordance with the requirements of the drawings.
3: Put the elbow blank after shaping and beveling, and put it into the shot blasting machine for shot blasting on the surface of the pipe to remove the oxide skin on the inner and outer surfaces.
4: The finished pipe fittings are inspected according to the requirements of the drawings for the thickness and radius of curvature and straightness.
5: The pipe fittings that have passed the inspection will be typed on the end face according to the customer's requirements, and the pipe caps will be treated with anti-rust treatment according to the customer's requirements, and then put into wooden boxes or wooden pallets for transportation.
Standard for butt welded pipe fittings: ANSI B16.9 ANSI B16.28 JIS B2311 SGP DIN 2605, DIN2615 DIN2616 DIN2617
Thickness of pipe fittings: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
Size of butt welded fittings: 1/2"-48" (DN15-DN1200)
Steel Fitting,Stainless Steel Fittings,Ss Fittings,Stainless Fittings
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