Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 10000000pcs per month |
| Delivery Time | 1~60days |
| Packaging Details | Wooden Case, or as requirements, Standard export seaworthy package, by wooden box, steel pallet or as per customers' requirement |
| Standard | ASME ANSI DIN JIS GB |
| Material | Duplex Steel F51 F53 F55 |
| Type | Orific Flange |
| Size | 1/2''~48'' |
| Packing | Wooden Case, or as requirements, Standard export seaworthy package, by wooden box, steel pallet or as per customers' requirement |
| Application | Power generation, gas and oil pip, Pipe Tube Connection, Chemical and petrochemical, Industry |
| Pressure | CL150, Class150, Class150/300/600/900/1500 etc, 150#-2500# |
| Process | CNC Processing, Casting, forged |
| Surface treatment | Polishing, 125 AARH, Galvanized Etc, cnc machined |
| Sample | For free,Avaliable,but you need to pay for the freight charge for the samples |
| Brand Name | HT |
| Model Number | Duplex Steel F51 F53 F55 |
| Certification | ISO API SGS BV,TUV,CE,ETC. |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 10000000pcs per month |
| Delivery Time | 1~60days | Packaging Details | Wooden Case, or as requirements, Standard export seaworthy package, by wooden box, steel pallet or as per customers' requirement |
| Standard | ASME ANSI DIN JIS GB | Material | Duplex Steel F51 F53 F55 |
| Type | Orific Flange | Size | 1/2''~48'' |
| Packing | Wooden Case, or as requirements, Standard export seaworthy package, by wooden box, steel pallet or as per customers' requirement | Application | Power generation, gas and oil pip, Pipe Tube Connection, Chemical and petrochemical, Industry |
| Pressure | CL150, Class150, Class150/300/600/900/1500 etc, 150#-2500# | Process | CNC Processing, Casting, forged |
| Surface treatment | Polishing, 125 AARH, Galvanized Etc, cnc machined | Sample | For free,Avaliable,but you need to pay for the freight charge for the samples |
| Brand Name | HT | Model Number | Duplex Steel F51 F53 F55 |
| Certification | ISO API SGS BV,TUV,CE,ETC. | Place of Origin | China |
| High Light | forged steel flanges ，stainless steel pipe flange | ||
ASTM A182 F51 F53 F55 Duplex Stainless Steel Flange Orifice Flange ASME B16.36
1. Strength Where You Need it Most
ASME/ANSI B16.36 Orifice Flanges have orifice pressure differential connections. Federal can custom engineer your Orifice Flange in a range hole configurations—and any hole, bolt or circle diameter. And when you choose Federal, you’ll know your product will be a quality piece of work, exactly to your specification—and delivered ASAP.
These flanges and associated components are often used in conjunction with equipment that helps meter or measure the flow of liquids or gases in a pipeline. Federal can construct Orifice Flanges from any number of construction materials including stainless steel, alloy, carbon steel or any other suitable material of choice.
2. Check out available dimensions, grades, tolerances and other specs for the following Federal products:
.Welding Neck Flanges
.Threaded Orifice Flanges
.Slip-On Flanges
3. FLANGE - ORIFICE, WELD NECK, ANSI CLASS 300, B16.36 (IN)
Dimensions to ASME B16.36 - Orifice Flanges
Bolt circle diameters are 1/8 inch larger than bolt diameter.
All dimensions except "Thickness of Flange C sizes 1" are the same as a Weld Neck.
Approximate weight is based on a orifice flange union which is a set of flanges, plate not included.
| Pipe Size (NPS) | Outside Diameter of Flange A | Diameter of Raised Face B | Thickness of Flange
| Diameter of Bore
| Diameter of Hub at Weld
| Diameter of Hub at Base
| Length of Hub
| Number of Bolt Holes NBH | Diameter of Bolt Holes DBH | Bolt Circle Diameter
| Approx. Weight Per Union (lb) AW |
| 1/2 | - | - | - | - | - | - | - | - | - | - | - |
| 3/4 | - | - | - | - | - | - | - | - | - | - | - |
| 1 | 4 7/8 | 2 | 1 1/2 | 1.049 | 1.315 | 2 1/8 | 2 7/16 | 4 | 3/4 | 3 1/2 | 18 |
| 1 1/4 | 5 1/4 | 2 1/2 | 1 1/2 | 1.380 | 1.660 | 2 1/2 | 2 9/16 | 4 | 3/4 | 3 7/8 | 20 |
| 1 1/2 | 6 1/8 | 2 7/8 | 1 1/2 | 1.610 | 1.900 | 2 3/4 | 2 11/16 | 4 | 7/8 | 4 1/2 | 25 |
| 2 | 6 1/2 | 3 5/8 | 1 1/2 | 2.067 | 2.375 | 3 5/16 | 2 3/4 | 8 | 3/4 | 5 | 27 |
| 2 1/2 | 7 1/2 | 4 1/8 | 1 1/2 | 2.469 | 2.875 | 3 15/16 | 3 | 8 | 7/8 | 5 7/8 | 35 |
| 3 | 8 1/4 | 5 | 1 1/2 | 3.068 | 3.500 | 4 5/8 | 3 1/8 | 8 | 7/8 | 6 5/8 | 43 |
| 3 1/2 | - | - | - | - | - | - | - | - | - | - | - |
| 4 | 10 | 6 3/16 | 1 1/2 | 4.026 | 4.500 | 5 3/4 | 3 3/8 | 8 | 7/8 | 7 7/8 | 66 |
| 5 | 11 | 7 5/16 | 1 1/2 | 5.047 | 5.563 | 7 | 3 7/8 | 8 | 7/8 | 9 1/4 | 78 |
| 6 | 12 1/2 | 8 1/2 | 1 1/2 | 6.065 | 6.625 | 8 1/8 | 3 7/8 | 12 | 7/8 | 10 5/8 | 106 |
| 8 | 15 | 10 5/8 | 1 5/8 | 7.981 | 8.625 | 10 1/4 | 4 3/8 | 12 | 1 | 13 | 152 |
| 10 | 17 1/2 | 12 3/4 | 1 7/8 | 10.020 | 10.750 | 12 5/8 | 4 5/8 | 16 | 1 1/8 | 15 1/4 | 216 |
| 12 | 20 1/2 | 15 | 2 | 12.00 | 12.750 | 14 3/4 | 5 1/8 | 16 | 1 1/4 | 17 3/4 | 327 |
| 14 | 23 | 16 1/4 | 2 1/8 | 13.25 | 14.00 | 16 3/4 | 5 5/8 | 20 | 1 1/4 | 20 1/4 | 448 |
| 16 | 25 1/2 | 18 1/2 | 2 1/4 | 15.25 | 16.00 | 19 | 5 3/4 | 20 | 1 3/8 | 22 1/2 | 596 |
| 18 | 28 | 21 | 2 3/8 | 17.25 | 18.00 | 21 | 6 1/4 | 24 | 1 3/8 | 24 3/4 | 741 |
| 20 | 30 1/2 | 23 | 2 1/2 | 19.25 | 20.00 | 23 1/8 | 6 3/8 | 24 | 1 3/8 | 27 | 887 |
| 22 | 33 | 25 1/4 | 2 5/8 | 21.25 | 22.00 | 25 1/4 | 6 1/2 | 24 | 1 5/8 | 29 1/4 | 1040 |
| 24 | 36 | 27 1/4 | 2 3/4 | 23.25 | 24.00 | 27 5/8 | 6 5/8 | 24 | 1 5/8 | 32 | 1311 |
4. Duplex Steel S31803 / S32205 Pipe Flanges Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Duplex Steel S31803 / S32205 Plate Flanges Mechanical Properties
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Equivalent Grades for S31803 / S32205 Duplex Steel Industrial Pipe Flanges
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
5. More information about us
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1978
Total Annual:
10000000-20000000
Employee Number:
50~100
Ecer Certification：
Active Member
Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti... Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti...
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