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Orifice Flange ASME B16.36

Dimension: NPS 1″~24″ (25NB-600NB)
Material: Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel etc.
Certificates: CE-PED 2014/68/EU / ISO 9001 / MTC EN10204 3.1/3.2
Supply Ability: 100 Tons per Month
Non-Standard type: As per the drawing
Payment Term: L/C, T/T
Packing: Export standard Plywood Pallets/ free fumigation wooden case.

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ASME B16.36 Orifice Flange, Orifice Flange Assembly, Orifice Flange Union, Weldneck Orifice Flange Assembly, Slip On Orifice Flange Assembly, Threaded Orifice Flange Assembly,  Orifice plates, Jack screws Flange

Estan pipe fittings is a premier Orifice Flange manufacturer and supplier in China. An Orifice Flange is used in combination with orifice meters to measure the flow rate of oil, gas, and other liquids conveyed by the pipeline. Pairs of pressure tappings are machined onto the orifice flange, making separate tappings on the pipe wall unnecessary.

Two orifice flanges with bolts and jack screws are referred to as an orifice flange union, which is used in conjunction with an orifice plate. Compared with weld neck flange and slip on flange, it is provided radial, tapped holes in the flange ring for meter connections and additional bolts to facilitate separating the flanges for inspection of the orifice plate.

The traditional orifice flange assembly consists of a pair of flanges, orifice plate, bolts, nuts, gaskets, jacking screws and plugs, (where requested). The flanges are generally weld neck designs. Other options are available such as Slip-on and threaded, although careful consideration should be taken in the location of the orifice tappings with these designs.
Available Tapping options include:
Flange Tap Flanges tappings – For internal line sizes greater 50mm
Corner Tap Flanges with annular chamber tappings – For internal line sizes under 50mm
Corner Tap Flanges with angle tappings – For internal line sizes under 50mm.

Orifice Flange Specification

Size NPS 1″~24″ (25NB-600NB)
Pressure ASME/ANSI Series: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 250
Flange Face Type ASME/ANSI Series:  Raised Face(RF), Ring Joints Face(RTJ)
Standards ASME B16.48 Flanges, ASME B16.5 Flanges, ASME B16.47 series A / B Flanges, ISO 5167-2
Coating/Surface Treatment Anti-rust oil, Transparent / Black Anti-rust Painting, Hot Dip Galvanized
Value-Added Services CNC Machining, Customised Flanges

Orifice Flange Material Specification

Stainless Steel Orifice Flanges: ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Orifice Flanges: ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Orifice Flanges: ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Long Orifice Flanges: ASTM A350, LF2, LF3
Alloy Steel Orifice Flanges: ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel Orifice Flanges: ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Long Orifice Flanges: ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

Available Certificates
Manufacturer Test Certificate as per EN 10204 3.1, Third-Party Inspection Report as per EN 10204 3.2, Non-destructive Testing / NDT Report

1. Oil and gas industry
2. Petrochemical industry
3. Power generation industry
4. Pharmaceutical industry
5. Shipbuilding industry
6. Papermaking industry
7. Metallurgy industry.