Orifice Flanges

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We are worked in gathering five star need nature of Orifice Flanges. The fundamental purpose for an opening spine is to offer affirmation to a pipe line for metering of liquids or gasses. An opening plate is pressed between two or three ribs when it is being displayed in a pipe line and the entire amassing is indicated as a gap spine blending. Jack-fixes the social event make an immediate completion of the opening plate. In the meantime, the gap plate, which is the metering gadget, joins a weak plate by strategies for a square edge, concentric, and round opening in the inside point. Two weight tap-openings are other than punctured in each rib for to gage weight capability completely through the gap.

Orifice Flanges are used as a choice of the standard pipe spine when stream gush or gap plate is used. The gap plate is an all around apportioned thing and isn't being sold as a pinch of the rib gathering. These Flanges are generally used as a touch of different applications industry. They are reasonable in different sizes, central focuses, examinations and thickness as showed by the client's necessities, and are offered to driving expenses in show off.

Orifice Flanges are used with Orifice meters to gauge the stream pace of either liquids or gases in the specific pipeline. Sets of weight "Tappings", all things considered on 2 sides, unequivocally transform each other, are machined into the opening spine. This makes separate opening transporters or tappings in the pipe divider silly.

Orifice Flanges all things considered go with either Raised Faces or RTJ (Ring Type Joint) facings. They are, for each and every concentrated explanation, the ascent to as weld neck and slip on ribs with extra machining.

The image on the right shows a set Orifice Flanges, where an Orifice Plate is mounted and a jack screw is machined. This jack screw is used to empower isolating the spines for appraisal or substitution of the Orifice Plate and gaskets.

The level of Orifice ribs covers each standard size and ranges, and all common rib materials. Ribs are open in Welding Neck, Slip On, and Threaded edge, and are routinely given two 1/2" NPT tappings in each spine.

ASME B16.36 covers Dimensions and dimensional characteristics from Orifice spines (like those covered in ASME B16.5) that have opening weight differential affiliations.


Standards: ANSI B16.47 Series A & B, ANSI B16.5, API-605, MSS SP44, ASA, EN1092, BS 4504, DIN
Type: Orifice Flanges
Size:  ½” (15 NB) to 48″ (1200NB)
 Class : 150 Class, 300 Class, 400 Class, 600 Class, 900 Class, 1500 Class, 2500 Class, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Material: Stainless Steel, Duplex, Super Duplex, Nickel Alloys, Alloy Steel, Carbon Steel, Low temperature Steel
Material Grade:
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 DuplexSteel Orifice Flanges: ASTM A182 / ASME SA182, F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Orifice Flanges: ASTM A105 / ASME SA105, ASTM A350 / ASME SA350, ASTM A181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
Low Temperature Carbon Steel Orifice Flanges (LTCS): Flange, A350 LF2/A350 LF3
Alloy Steel Orifice Flanges:  ASTM A182 / ASME SA182 & A387 F1, F5, F9, F11, F12, F22, F91
Nickel Alloy Orifice Flanges:  ASTM / ASME SB 564 / 160 / 472, UNS 2200 ( Nickel 200 ), UNS 2201 (Nickel 201 ), UNS 4400 (Monel 400 ), UNS 8020 ( Alloy 20 / 20 CB 3, UNS 8825 Inconel (825), UNS 6600 (Inconel 600 ), UNS 6601 ( Inconel 601 ), UNS 6625 (Inconel 625), UNS 10276 ( Hastelloy C 276 )

We offer the following types :

Slip on threaded ring joint corner tap weld neck orifice flanges
Raised Face slip-on orifice flange manufacturers
Ring-Type joint weld neck orifice flanges
Corner tap orifice flanges
Raised Face weld neck orifice flanges


Cast iron
Carbon Steel
Stainless Steel
Copper etc

MATERIAL GRADE of Orifice Flanges

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 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 Orifice Flanges –  ASTM A350, LF2, LF3

Copper Alloy 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

Alloy Steel Orifice Flanges –  ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Nickel Alloy 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)