Weld Neck Orifice Flange
Provides reinforced strength and excellent alignment. Common in systems where high flow accuracy and mechanical strength are essential.
Minimum Order : 200 unit
Customization as per requiments
| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Metalica Forging Inc is a distinguished brand in providing precision flow management solutions. It is also a leading Orifice Flange Manufacturer that offers high-performance flanges engineered to measure and regulate flow rates in high-pressure piping systems. These flanges are generally employed in conjunction with orifice plates and flow nozzles to produce differential pressure for accurate monitoring. Each flange, whether made from stainless steel (304, 316, 321), carbon steel, alloy steel (F11, F22), or high-nickel alloys like Inconel, Monel, and Hastelloy, is designed to adhere to international quality standards for dimensional accuracy and dependability.
We offer the flanges in a variety of industrial conditions by providing them in both finish-machined and rough-machined forms. Our 2025 update is now allowing users to download MTCs, CAD-ready drawings, and detailed flow guides for streamlined sourcing via a leading B2B marketplace. In addition to orifice flanges, we also offer Socket Weld Flanges that are able to complement a wide range of pressure systems with the same accuracy. Backed by the energy of excellent logistics and the precision of third-party inspection services, our products are promoting the values of consistency, accuracy, and superior long-term performance in the global market.

Provides reinforced strength and excellent alignment. Common in systems where high flow accuracy and mechanical strength are essential.

Used in low pressure applications where welding is restricted.
What are orifice flanges used for?
Orifice flanges are employed in flow measurement equipment where differential pressure must be created across an orifice plate in order to determine flow rate. Orifice flanges are installed in typical pipelines transferring gas, steam, or liquids in refineries, power generation plants, chemical process units, and water treatment plants. The flanges provide easy accessibility for pressure tap connections and accurate monitoring of flow.
Which standards apply to your orifice flanges?
Our orifice flanges are made in accordance with ASME B16.36 and ASME B16.5 specifications. These specifications state dimensions, face types, pressure ratings, bore sizes, as well as pressure tap location and threading. For high-requirement applications where accuracy is necessary, such the petrochemical, oil and gas, and power industries, this offers compatibility with orifice plates and measurement equipment.
What materials are available for orifice flanges?
We use a wide range of materials to make orifice flanges, including high-performance nickel alloys like Inconel 625, Monel 400, and Hastelloy C276; carbon steel (A105); alloy steel (F11, F22); and stainless steel (304, 316). Material choice based on pressure class, temperature range, and type of fluid. Each material is qualified in terms of corrosion, strength, and temperature rating.
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