The production and maintenance personnel detected that the air conditioner and electric control were normal. It was suspected that the capillary in the refrigeration system was blocked by foreign matter, so the refrigerant was discharged, and the capillary was opened for inspection. At this point, the appearance of the compressor is still normal, and the maintenance personnel suspect that the compressor is abnormal, and the compressor is energized directly in this state. When the start-up operation is about 10 s, the compressor stops, and the casing has become larger. Appearance survey of the compressor (1) The two compressor casings have been swollen and deformed, the upper casing is obviously bulged upward, and the casing is free of cracks; the compressor technology (2) the outer casing of the two compressor casings has been partially charred; 3) A compressor glass terminal two terminals C, R have been thrown out, a large amount of black charred material is accumulated outside the upper casing.
Air conditioner production line operation detection indoor machine general purpose machine, no abnormality, air conditioning system outdoor unit, there is gas outflow at the glass terminal of the compressor, indicating low pressure pass; inflated from the process pipe F, no gas flows out at the glass terminal of the compressor, indicating the compressor The exit and the F section are not available. The joints between the compressor outlet and the F section were cut open, and it was found that the welded portion of the compressor exhaust pipe and the outdoor unit piping was completely blocked by the solder. All other parts were checked for no defects.
Directly cut the front and rear sections of the welding pipe of the compressor and the piping of the outdoor unit, and found that the welded joint was completely blocked by the solder. The other parts of the outdoor unit were checked for no defects. Internal condition of the compressor: (1) Many black charred materials are adhered to the outer surface of each component in the compressor machine; (2) The resistance value of the motor enameled wire is normal, and the cooperation between the stator and the casing is loose. The motor binding wire is blown, and the insulating wedge, the insulating paper, and the insulating film are in a sintered state. And the stator winding of the A compressor has been blown; (3) the thermal characteristics of the protector are normal, the movement of the movement is normal; (4) The compressor refrigeration oil is completely burned.
welkin pipeline is one of the leading manufacturer, exporter and supplier of stainless steel buttweld fittings, carbon steel buttweld fittings, alloy steel buttweld fittings, cupro nickel buttweld fittings, nickel alloy buttweld fittings and duplex stainless steel buttweld fittings. While, there are many specialised types of fittings which can be manufactured, the most common types of fittings which we manufacture include pipe elbow, tee, reducers, cap, stub ends and special size pipe bends in both seamless and welded (100% X-Ray Tested/Radiography) form.
Buttweld fittings are manufactured in accordance with national and international product standards, while we can also produce fittings as per special specifications of our customers. In case of custom size fabricated buttweld fittings, the welding is done is carried out by qualified personnel.
Buttweld fittings are generally supplied with plain ends. However, on requests from our customers fittings be supplied with beveled ends in accordance with to ASME B16.25.
Buttweld Pipe Fittings Production Range
Size Range: 1/8" NB TO 48" NB. (Seamless & 100% X-Ray Welded, Fabricated)
Product Range: Buttweld Pipe Fittings – Range of Materials, Specifications
Thickness: SCH: 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS, Custom Thickness.
Buttweld Fittings – Manufacturing Standards
ASME: ANSI B16.9, ANSI B16.28, MSS-SP-43
DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN: EN10253-1, EN10253-2
Buttweld Fittings Complete Specifications – ASME B16.9 Wrought Steel ButtWeld Fittings
Seamless Buttweld Pipe Fittings
Seamless buttweld pipe fittings are manufactured from seamless pipes and tube by hot or cold extrusion, forming and machining process. We are a leading supplier and manufacturer of seamless buttweld pipe fittings in India. Most of the seamless buttweld pipe fittings in standard sizes and grades are available ex-stock for immediate supply to our customers.
Welded Buttweld Pipe Fittings
Seam welded buttweld fittings are produced from hot rolled stainless steel pipes. As per customer requirements, we can also manufacture and offer butt weld fittings manufactured from hot rolled plates, formed into half shells or segments and then welded on the seams.
Buttweld Fittings Grades
Stainless Steel Buttweld Pipe Fittings: ASTM A403 WP 304/ 304L/ 304H/ 316/ 316L/ 317/ 317L/ 321/ 310/ 347/ 904L/2205 Duplex Fittings
Carbon Steel Buttweld Pipe Fittings: ASTM A234 WPB / A420 WPL3/ A420 WPL6/ MSS-SP-75 WPHY 42/46/52/56/60/65/70
Alloy Steel Butt Weld Pipe Fittings: ASTM A234 WP1/ WP5/ WP9/ WP11/ WP22/ WP91
Other Materials: Monel, Nickel, Inconel, Hastelloy, Copper, Brass, Bronze, Titanium, Tantalum, Bismuth, Aluminium, Zinc, Lead, etc.
Copper Nickel Butt Weld Pipe Fittings: CuNi10Fe1Mn, CuNi30Mn1Fe
Marking & Packing
Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All buttweld fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.
- Value Added Services
- Hot Dipped Galvanizing
- Epoxy & FBE Coating
- Electro Polish
Quality Assurance
At Metal Industries, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.
Steel Caps,Butt Weld Fittings,Steel Butt Weld Cap,Stainless Butt Welding Caps
Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.com