Gost12821-manufacture,factory,supplier from China

Our group:Jinan Jiang Hua Forging Machinery Co.,Ltd was established in 1995. The company located in the eastern suburd of Jinan,possesses a favorable position: with Jinan International Airport to its west and Qingdao Port to its east. The company covers 48000 square meters, has 38,000,000,000 RMB investment and possesses 360 staffs and more than 30 technicians.

The thread is also called British Standard Whitworth (BSW) and British Standard Fine (BSF)in Great Britain and British standard pipe thread (BSP-BSPT). 1. Standard:DIN2502,DIN2503,DIN2527,DIN2566.DIN2573,DIN2576; DIN2633 ; DIN2632; DIN2631;DIN25662. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:PN6;PN10; PN16; PN25; PN40; 4. Dimension:DN10-20005. Surface Treament:Anti-rust oil; Yellow paint; Black paint;Hot dip Galavnised; Zinc.6. Raw Material:RST 37.2; P245GH ; S235JR7. PackingWooden Case, Pallet.8. Payment:L/C, T/T, Western Union, PayPal9.

Flanged fittings with rating class designation 150 and 300 in sizes NPS 1 ⁄2 through NPS 24, with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch unitsProduct Specification: 1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5.

PVC pipes,pipe fittings and valves is widely used in water supply,chemical industry,water treatment,enviromental protection,pharmaceutical area etc.It has following advantages:Light weightHigh strengthLow resistanceCorrosion resistanceEasy installationLong service lifeLow costNon-toxic and sanitationProduct Specification: 1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004.

flange connections, which are used for two kinds of pipes, fittings, or devices, are first fixed in a flange flange, and between the two flanges, flange pads are bolted together, which completes the connection. Some pipe fittings and equipment have their own flange, also belong to the flange connection. Flange connection is an important connection mode in pipeline construction. Flange connection is easy to use and can withstand greater pressure. Flange connection is widely used in industrial pipeline. In the home, the pipe diameter is small, and is low pressure, not visible flange connection.

This St andard covers pressure–t emperature  ratings, materials, dimensions, tolerances, marking, testing, and methods of designat ing openings for pipe  flanges and flanged fittings. Included are                                             Production Process:Our group:Jinan Jiang Hua Forging Machinery Co.,Ltd was established in 1995.

When building a pipeline, the length of the pipes used are not always known. By manufacturing the pipe separate from the flange plate, the welders can cut the pipe to length and weld a flange plate in place to join the pipes at any needed length. The plates can also be welded to the pipe on a slight bias, allowing two pipes to be joined that may not be precisely lined up.1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3.

Flanges Introduction:A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5.

Flanges Introduction:A flange is a approach of connecting pipes, valves, pumps and other gear to form a pipework system. It additionally provides handy access for cleaning, inspection or modification. Flanges are typically welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:BS4504 2. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange. Type3. Pressure Class:PN6;PN10; PN16; PN25; PN40; 4. Dimension:DN10-20005.

Product Specification: 1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5. Surface Treament:Anti-rust oil; Yellow paint; Black paint;Hot dip Galavnised; Zinc.6. Raw Material:A105; A105N7. PackingWooden Case, Pallet.8. Payment:L/C at sight, T/T, Western Union, PayPal9.

Used for the connection between the tube end  in chemical, construction, water supply, drainage, oil and gas, light and heavy industrial, refrigeration, sanitation, plumbing, fire protection, electrical, aerospace, shipbuilding and other infrastructure projects

Flange types:Weld NeckThis flange is circumferntially welded into the system at its neck which means that the integrity of the butt welded area can be easily examined by radiography. The bores of both pipe and flange match, which reduces turbulence and erosion inside the pipeline. The weld neck is therefore favoured in critical applications.Slip OnThis flange is slipped over the pipe and then fillet welded. Slip-on flanges are easy to use in fabricated applications.BlindThis flange is used to blank off pipelines, valves and pumps, it can also be used as an inspection cover.

Flanges Introduction:A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5.

Rat ings for welding neck flanges covered by this Standard are based upon their hubs at the welding endhaving thickness at least equal to that calculated for pipe having 276 MPa (40,000 psi) specified minimum yieldstrength.1 In order to ensure adequate flange hub thick ness for flange sizes NPS 2 and larger, the bore of awelding neck flange, dimension B in the various dimen sional t ables, shall not exceed Bmax det ermined asfollows: 1. Standard:DIN2502,DIN2503,DIN2527,DIN2566.DIN2573,DIN2576; DIN2633 ; DIN2632; DIN2631;DIN25662.

Flanges Introduction:A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:DIN2502,DIN2503,DIN2527,DIN2566.DIN2573,DIN2576; DIN2633 ; DIN2632; DIN2631;DIN25662. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:PN6;PN10; PN16; PN25; PN40; 4. Dimension:DN10-20005.

Pressure–temperature ratings are maximum allowable working gage pressures in bar units at the temperatures in degrees Celsius shown in Tables 2-1.1 through  2-3.19 for the applicable material and class designation.  Tables II-2-1.1 through II-2-3.19 of Mandatory  Appendix II list pressure–temperature ratings using psi  units for pressure at the t emperature in degrees  Fahrenheit. For intermediate temperatures, linear interpolation is permitted. Interpolation between class designations is not permitted.  

Model NO.1/2"--72"Manufacturing WayForgingPressureClass150 / Class300 / Class600 /Class900CertificationISO / CESurface TreatmentAnti-Rusting Oil / Black PaintingPackingPlywood Cases or PalletsQualityStrict Quality Control SystemSampleMOQ5 PCSManufacturer or NotManufacturerDelivery Time15-25days Depenging on The Order QuantityApllicationWater / Gas / OilCustomized ServiceCustomized Product Can Be MadeExport ExperienceOver 15year Exporting ExperienceShippingby Sea / by Air / by TrainRaw MaterialA105 Transport PackagePlywood Case or PalletsSpecification1/2"-72"TrademarkDZ

Blind Flanges. Blind flanges need not be facedin the center if, when this center part is raised, its diameter is at least 25 mm (1 in.) smaller than the inside diameter of fittings of the corresponding pressure class, as given in Tables 9 and 12 (Tables II-9 and II-12) or25 mm (1 in.) smaller than the mating pipe inside diameter.  1. Standard:GOST 12820- 80  GOST 12821- 80 2. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange. Type3. Pressure Class:PN6;PN10; PN16; PN25; PN40; 4. Dimension:DN10-20005.

A blind flange is a solid flange as shown below. The purpose of these is to block off a section ofpipe or a nozzle on a vessel that is not used. (A nozzle is typically a pipe coming out of a vessel and is usually flanged so it can be connected to valves or piping). Many times a nozzle will be blanked off with a blind flange for pressure tests in a plant, or simply because the customer does not need all the nozzles that were supplied on the tank.1. Standard:GOST 12820- 80  GOST 12821- 80 2. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange. Type3.

Face finish: The finish on the face of flange is measured as an Arithmetical Average Roughness Height(AARH). The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other finishes are available on requst, for example 1.6 Ra max,1.6/3.2 Ra, 3.2/6.3Ra or 6.3/12.5Ra. The range 3.2/6.3Ra is most common.Product Specification: 1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3.

Flanges Introduction:A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:DIN2502,DIN2503,DIN2527,DIN2566.DIN2573,DIN2576; DIN2633 ; DIN2632; DIN2631;DIN25662. Type:Plate flange, Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:PN6;PN10; PN16; PN25; PN40; 4. Dimension:DN10-20005.

Flanges Introduction:A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or crewed into such systems and then joined with bolts.Product Specification:1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5.

Product Specification:1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5. Surface Treament:Anti-rust oil; Yellow paint; Black paint;Hot dip Galavnised; Zinc.6. Raw Material:A105; A105N7. PackingWooden Case, Pallet.8. Payment:L/C at sight, T/T, Western Union, PayPal9.

Class is marked with 6 pressure ratingsThey are: Class 150; Class 300; Class 600; Class 900; Class 1500; Class 2500Product Specification: 1. Standard:ASME B16.5; ASME B 16.47 Series A(MSS SP-44); ASME B 16.47 Series BAWWA C2072. Type:Plate flange, Slip on ,Threaded, Irrigation,Blind, Lap Joint flange.3. Pressure Class:Class 150; Class 300;Class 400;Class 600;Class 900;Class 1500;Class 25004. Size1/2"-48"5. Surface Treament:Anti-rust oil; Yellow paint; Black paint;Hot dip Galavnised; Zinc.6. Raw Material:A105; A105N7. PackingWooden Case, Pallet.8.