Producs: Butt weld pipe fitting; Forged steel pipe fitting; Flanges; Steel pipes; Pre-Fabrications; Coated and insulated piping

Our company: Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

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Flanges

At Haihao, we manufacture and stock a lot range of steel piping products . These products include: Steel pipes, Pipe fittings; Forged flanges , in various specifications and materials (Carbon steel ,Alloy steel ,Stainless steel.)

Flange Type

Flange Standard

Flange Material

Flange Dimension

Flange Type

JIS B2220 Slip On Hubbed Flange

Hebei Haihao Group can manufacture the JIS B2220 slip on flange in high quality,which could be divided two different types:JIS B2220 slip on hubbed flange,JIS B2220 slip on pla ...

JIS B2220 slip on plate flange

JIS B2220 flanges products manufacture | JIS B2220 slip on flanges | JIS B2220 slip on plate flangeHebei Haihao Group manufacture all types flanges products,which contain: weld ...

JIS B2220 Socket Weld Flange

JIS B2220 Flange Products | JIS B2220 Socket Weld Flange | JIS B2220 SW Flange Manufacturer-Hebei Haihao GroupHebei Haihao Group manufacture pipe fittings and flanges products ...

JIS B2220 Threaded Flange

JIS B2220 Flange Products | JIS B2220 Threaded Flange | JIS B2220 TR Flange Manufacture-Hebei Haihao GroupHaihao Group manufacture JIS B2220 flange products in high quality and ...

JIS B2220 Weld Neck Flange

aJIS B2220 weld neck flange | JIS B2220 flange products | JIS B2220 flange manufacturer-Haihao GroupHaihao Group manufacture JIS B2220 flanges products in high quality(The intr ...

Lap Joint Flange,Loose Flange,Slip on flange with Stub End

Stainless Steel Lap Joint FlangeLap Joint Flange Definition and DetailsLap joint flanges have all the same common dimensions as any other flange named on this page however it d ...

Long Weld Necks Flange,Intergal Flange

Long weld neck flanges(abbreviated LWN) are similar to a standard welding neck flange,but the “neck” is considerably longer.This type is often used as a nozzle for ...

Orifice Flange

Orifice FlangeOrifice Flanges Definition:Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pi ...

Reducing Flange

Stainless Steel Reducing FlangeReducing flangeReducing flanges are suitable for changing line size, but should not be used if abrupt transition would create undesirable turbule ...

SCH80S JIS B2220 30K 2INCH A182 F316L Weld Neck Flange

SCH80S JIS B2220 30K 2INCH A182 F316L Weld Neck FlangeJIS B2220 weld neck flange also known as a high-hub flange and tapered hub flange.It has two designs.The regular type is u ...

Socket Weld Flange,Socket Welding Neck Flange,SW Flange

Socket Welding Neck FlangeDefinition and Details of Socket Weld Flange:Socket weld flanges were initially developed for use on small-size high pressure piping. Their static str ...

Spectacle Flange,Spades and Ring-Spacers

A spectacle flange is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. It is di ...

Successful delivery of DIN2605 304L 90° SMLS elbow with stric ...

Haihao Group recently completed the delivery of a batch of DIN2605 304L 90° SMLS elbow pipe fittings to a valued client in the Netherlands. This batch, consisting of 160 high-p ...

Threaded Flange,Screwed Flange,TH flange

Thread Flange With Raised FaceDefinition and Details of Threaded Flange:Threaded flanges are used for special circumstances with their main advantage being that they can be att ...

Tube-sheet/Tubesheet for heat exchanger

tube-sheet-for-heat-exchangerTube sheet is the support for the tubes in the heat exchanger.Size:Diameter (100~3000)mm * Height / thickness (20~180)mmMaterials:Carbon steels, s ...

UNI 2276 PN6 1inch ASTM A350 LF2 Plate Flange

ASTM A350 LF2 plate flange looks like a flat circular disk with inner bore and bolt holes on it.It is one kind of the slip on flange.The ASTM A350 LF2 plate flange slip over th ...

Weld Neck Flange,Butt Weld Flange

Definition and details of weld neck flangeWeld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type ...

Weldoflange,Nipoflange

Weldoflange, NipoflangeNipoflange Definition and DetailsThe weldoflange and nipoflange is a combination of a welding neck flange and a supposedly weldolet or nipolet. The 2 com ...

Flange Standard

DIN 2638 PN160 Welding Neck Flange

DIN 2638 PN160 Welding Neck Flange Dimension and weight of DIN 2638 PN160 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNI ...

DIN 2642 PN10 Loose (Lapped Joint) Flange Plain Collar

DIN2642 PN10 Lapped (Lapped Joint) Flange Plain CollarDimension and weight of DIN2642 PN10 Lapped (Lapped Joint) Flange Plain CollarPipe ParameterFlange DimensionScrew Dimensio ...

DIN2573 PN6 Plate Flange

Dimension and weight of DIN2573 PN6 Plate FlangeDimension and weight of DIN2573 PN6 Plate Flangeominal Pipe SizeDiameter of PipeFlange DimensionNuts & BoltsApprox. Flange W ...

EN 1092 Circular flanges for pipes,valves,fittings

EN 1092 consists of the following four parts:Part 1: Steel flanges;Part 2: Cast iron flanges;Part 3: Copper alloy flanges;Part 4: Aluminium alloy flanges.According to the CEN/C ...

EN 1759-1 Circular flanges for pipes,valves,fittings,steel fl ...

BS EN 1759-1:2004 standard for a single system of flanges specifies requirements for circular steel flanges in Class designations Class 150 to Class 2 500 and nominal sizes fro ...

GOST 12820 Steel Plane Welded/Plate Flanges

GOST 12820 Steel plane welded flangesПроход условный DyPy 0,1 и 0,25 МПа (1 и 2,5 кгс/см2)dнdвbМасса, кгс соединительным выступомс выступомс впадиной10141580,250,250,241518190, ...

GOST 12821 Steel Butt Welded/Weld Neck Flanges

“GOST 12821 flange” international standard pipe flanges of two major systems, namely the German DIN (including the former Soviet Union), on behalf of the European p ...

Haihao Group completes piping fittings order for Russian client

Haihao Group has successfully completed the production of a significant order for a Russian client, showcasing our expertise in manufacturing high-quality piping components. Th ...

Haihao Group ships ASME B16.9 pipe fittings to Korean client

In December, Haihao Group successfully completed an order for a South Korean client, supplying a range of ASME B16.9 pipe fittings made from ASTM A234 WPB material. This shipme ...

Introduction to ASTM A694 GR. F65 Material

ASTM A694 GR. F65 is a high-strength carbon steel material widely used in the manufacturing of flanges, fittings, and other components for high-pressure pipeline systems. This ...

ISO 7005-1 Metallic Flanges Part 1 Steel Flanges

ISO 7005-1:2011 establishes a base specification for pipe flanges suitable for general purpose and industrial applications including,but not limited to, chemical process indust ...

Italy Standard Uni 2278 Pn16 Plate Flange

Italy Standard Uni 2278 Pn16 Plate Flange Dimensions ITALY STANDARD UNI 2278 PN16 PLATE FLANGE DIMENSIONS TABLEDirections for the designationd1abDfHolesscrewsWeight*Rated ...

Italy Standard Uni 6089 Pn10 Lapped Joint/Loose Flange

Italy Standard Uni 6089 Pn10 Lapped Flange DimensionsITALY STANDARD UNI 6089 PN10 LAPPED FLANGE DIMENSIONS TABLEDirections for the designationLapped flangesSscrewsWeightRatedDi ...

Italy Standard Uni 6090 Pn16 Lapped Joint/Loose Flange

Italy Standard Uni 6090 Pn16 Lapped Flange DimensionsITALY STANDARD UNI 6090 PN16 LAPPED FLANGE DIMENSIONS TABLEDirections for the designationLapped flangesSscrewsWeightRatedDi ...

JIS B2220 Steel pipe flanges

1.ScopeThis Standard specifies steel pipe flanges (hereafter referred to as “flanges”) of nominal size 10A to 1500A for nominal pressure 5K, 10K, 10K light type,16K ...

KS B1503 Steel Welding Pipe Flanges

KS B1503 FlangeThe measurement of KS B1503 16K blind carbon steel flange DN10-1200For the KS B1503 16K blind carbon steel flange DN10-1200, generally we use the wooden box and ...

Successful delivery of DIN2605 304L 90° SMLS elbow with stric ...

Haihao Group recently completed the delivery of a batch of DIN2605 304L 90° SMLS elbow pipe fittings to a valued client in the Netherlands. This batch, consisting of 160 high-p ...

UNI 2276 PN6 Plate Flange

UNI 2276 PN6 Plate Flange Directions for the designationd1abDfNumber of holesThreading of the screwsWeight*RatedExternal diameterNominalToleranceKgDiameterof the pipe15202 ...

Uni 2277 Pn10 Plate Flange Slip On Plate

Uni 2277 Pn10 Plate Flange Slip On Plate ITALIAN STANDARDS UNI 2277 PLATE FLANGE PN 10Directions for the designationd1abDfHolesscrewsWeight*RatedExternal diameterNominalTo ...

Flange Material

Flange Dimension

DIN 2631 PN6 Welding Neck/WN Flange Dimensions

Dimension and weight of DIN2631 PN6 Welding Neck FlangePipe ParameterFlange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. of Holesd2KG/PCS10R ...

DIN 2632 PN10 Welding Neck/WN Flange Dimensions

Dimension and weight of DIN2632 PN10 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. ofd2KG/PCSHoles10&# ...

DIN 2633 PN16 Welding Neck Flange Dimensions

Dimension and weight of DIN2633 PN16 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. ofd2KG/PCSHoles10&# ...

DIN 2634 PN25 Welding Neck Flange Dimensions

Dimension and weight of DIN2634 PN25 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. ofd2KG/PCSHoles10&# ...

DIN 2635 PN40 Welding Neck Flange Dimensions

Dimension and weight of DIN2635 PN40 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. of Holesd2KG/PCS10& ...

DIN 2636 PN64 Welding Neck Flange Dimensions

Dimension and weight of DIN2636 PN64 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. of Holesd2KG/PCS10& ...

DIN 2637 PN100 Welding Neck Flange Dimensions

Dimension and weight of DIN2637 PN100 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. of Holesd2KG/PCS10 ...

DIN 2638 PN160 Welding Neck Flange Dimensions

Dimension and weight of DIN 2638 PN160 Welding Neck FlangePipe Parameterd1Flange DimensionNeck SizeHub SizeScrewApprox. Flange WeightDNISODINDbkh1d3srh2d4fNo. of Holesd2KG/PCS1 ...

DIN 2642 PN10 Loose (Lapped Joint) Flange Plain Collar Dimensions

Dimension and weight of DIN2642 PN10 Lapped (Lapped Joint) Flange Plain CollarPipe ParameterFlange DimensionScrew DimensionApprox. WeightDNISODINDd6bkeNo. of holesd2KG/PCS10 ...

DIN 86030 PN16 Hubbed Slip-on Flange For Welding Dimensions

Dimension and Weight of DIN86030 PN16 Hubbed Slip-on Flange For WeldingRated DiameterO.D. of PipeFlange ParameterNeck SizeSize of R.F.BoltsApprox. WeightDNd1Dd5bkhd3rd4fNo. ofd ...

DIN 2573 PN6 Plate Flange Dimensions

DIN 2573 PN6 Plate Flange DimensionsDimension and weight of DIN2573 PN6 Plate Flangeominal Pipe SizeDiameter of PipeFlange DimensionNuts & BoltsApprox. Flange WeightFlange ...

DIN 2655 PN25 Loose (Lapped Joint) Flange Plain Collar Dimensions

Dimension and weight of DIN2655 PN25 Lapped (Lapped Joint) Flange Plain CollarPipe ParameterFlange DimensionScrew DimensionFlange WeightDN ISO DIN D d6 b keNo. of holes d2 KG/P ...

DIN 2656 PN40 Loose (Lapped Joint) Flange Plain Collar Dimensions

Dimension and weight of DIN2656 PN40 Lapped (Lapped Joint) Flange Plain CollarPipe ParameterFlange DimensionScrew DimensionFlange WeightDN ISO DIN D d6 b keNo. of holes d2 KG/P ...

DIN 86029 PN10 Hubbed Slip-on Flange For Welding Dimensions

Dimension and Weight of DIN86029 PN10 Hubbed Slip-on Flange For WeldingRated DiameterO.D. of PipeFlange ParameterNeck SizeSize of R.F.BoltsApprox. WeightDNd1Dd5bkhd3rd4fNo. ofd ...

Haihao Group completes piping fittings order for Russian client

Haihao Group has successfully completed the production of a significant order for a Russian client, showcasing our expertise in manufacturing high-quality piping components. Th ...

Haihao Group ships ASME B16.9 pipe fittings to Korean client

In December, Haihao Group successfully completed an order for a South Korean client, supplying a range of ASME B16.9 pipe fittings made from ASTM A234 WPB material. This shipme ...

Introduction to ASTM A694 GR. F65 Material

ASTM A694 GR. F65 is a high-strength carbon steel material widely used in the manufacturing of flanges, fittings, and other components for high-pressure pipeline systems. This ...

Successful delivery of DIN2605 304L 90° SMLS elbow with stric ...

Haihao Group recently completed the delivery of a batch of DIN2605 304L 90° SMLS elbow pipe fittings to a valued client in the Netherlands. This batch, consisting of 160 high-p ...

Producs

Our company

Flanges

At Haihao, we manufacture and stock a lot range of steel piping products . These products include: Steel pipes, Pipe fittings; Forged flanges , in various specifications and materials (Carbon steel ,Alloy steel ,Stainless steel.)

Flange Type

Flange Standard

Flange Material

Flange Dimension