Nascent Fittings Inc.
ORIFICE FLANGE
Weld neck, slip-on, blind, socket weld & lap joint flanges in SS, CS, alloy, duplex & nickel. ASME B16.5/B16.47, Class 150–2500, MTCs & export.

- Standard
- ASME A182
About
About Flanges
Our integrated facilities include facilities for cutting, forging, ring rolling and machines with CNC lathes, CNC drilling, high capacity forging press and mobile manipulator for making big diameter forged round bars. We also have an in-house heat treatment shop and well equipped laboratory facilities for ensuring the quality of our products.
Manufacturing note
Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. An orifice flange is used to measure the flow of the fluid conveyed by the pipeline via a flow nozzle positioned on the flange itself. Pairs of pressure tappings are machined onto the orifice flange, making separate tapings on the pipe wall unnecessary. The traditional orifice flange assembly consists of a pair of flanges, orifice plate, bolts, nuts, gaskets, jacking screws and plugs. Jacking screws ensure the easy removal of the primary flow element. When an orifice plate is crammed into the centre of a team of flanges during a pipe line connection, the entire procedure is referred to as an orifice flange amalgamation. An Orifice Flange is primarily used to provide access to a pipeline for gas or liquid metering. These flanges are provided in conjunction with appropriate test certificates for standard raw materials and finished products. Nascent fittings offer Orifice Flanges that can be customized in terms of thickness, size, and specification to meet our clients’ unique requirements. These flanges are available at competitive prices.
Typical applications
- Industrial piping and process systems using Stainless Steel Flanges
- Project supply of Stainless Steel Flanges for oil & gas, power, chemical and general industry
Configurations
Flanges types
Open a type for drawings-aligned specifications.
Materials
ORIFICE FLANGE by material

Alloy Steel ORIFICE FLANGE
Size · 1/2″ NB to 48″ NB

Duplex Steel ORIFICE FLANGE
Size · 1/2″ NB to 48″ NB

Cupro Nickel ORIFICE FLANGE
Grades · Cu-Ni 90/10 (C70600) · Cu-Ni 70/30 (C71500)

Monel ORIFICE FLANGE
Standards · ASTM B564

Nickel Alloy ORIFICE FLANGE
Size · 1/2″ NB to 48″ NB

Hastelloy ORIFICE FLANGE
Standards · ASTM B564

Titanium ORIFICE FLANGE
Grades · Grade 1 · Grade 2 · Grade 7 · Grade 5 (Ti-6Al-4V)

Stainless Steel ORIFICE FLANGE
Size · 1/2″ NB to 48″ NB

Carbon Steel ORIFICE FLANGE
Grades · ASTM A234 WPB

Low Temperature Carbon Steel ORIFICE FLANGE
Size · 1/2″ NB to 48″ NB

Copper ORIFICE FLANGE
Grades · C11000 (ETP) · C12200 (DHP)

Copper Alloy ORIFICE FLANGE
Grades · UNS C70600 (Cu-Ni 90/10) · UNS C71500 (Cu-Ni 70/30) · UNS C71640
Compliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
10ASTM A182
ASTMForged or rolled alloy and stainless steel pipe flanges, fittings, valves and parts.
- Scope
- Forged and rolled stainless, alloy and duplex steel components for high-temperature service.
- Applies To
- Flanges, fittings, valves and pressure parts
- Typical Grades
- F304/L, F316/L, F11, F22, F91, F51/F60 and related
DIN Standard
DINGerman Institute for Standardization piping / material norms.
- Scope
- Collective reference for DIN dimensional and material standards used on export and EU projects.
- Applies To
- Flanges, fittings and materials when DIN designation is specified
ASME B16.5
ASMEPipe flanges and flanged fittings through NPS 24.
- Scope
- Pressure-temperature ratings, materials, dimensions, tolerances, marking and testing for pipe flanges and flanged fittings.
- Applies To
- Weld neck, slip-on, blind, socket weld, threaded, lap joint and reducing flanges
- Size Coverage
- NPS ½ through 24
- Class Range
- Class 150 to 2500
ASTM B564
ASTMNickel alloy forgings.
- Scope
- Forged nickel alloy flanges, fittings and similar parts.
- Applies To
- Forged flanges and fittings in nickel alloys
ASTM B861
ASTMTitanium and titanium alloy seamless pipe.
- Scope
- Seamless titanium pipe for corrosive and high-performance service.
- Applies To
- Titanium process piping
ASTM B171
ASTMCopper alloy plate and sheet for pressure vessels, condensers and heat exchangers.
- Scope
- Copper and copper-alloy plate for heat-transfer and pressure use.
- Applies To
- Tube sheets, plates and exchanger components
ASTM A234
ASTMPiping fittings of wrought carbon steel and alloy steel for moderate and high temperature service.
- Scope
- Seamless and welded wrought carbon and alloy steel fittings.
- Applies To
- Buttweld elbows, tees, reducers, caps and related forms
- Typical Grades
- WPB, WP5, WP9, WP11, WP22, WP91
ASTM A420
ASTMPiping fittings of wrought carbon steel and alloy steel for low-temperature service.
- Scope
- Wrought fittings suitable for low-temperature pressure piping.
- Applies To
- Buttweld fittings for cryogenic / LT service
- Typical Grades
- WPL6
EN
CENEuropean Norms for materials, flanges and fittings.
- Scope
- Umbrella reference for EN material and flange standards.
- Applies To
- EU-specified piping materials and PN flanges
IS 1239 Part II
BISMild steel tubes, tubulars and other wrought steel fittings — fittings.
- Scope
- Indian Standard covering wrought steel pipe fittings.
- Applies To
- MS / GI fittings commonly used in Indian utility piping
Manufacturing
Crafted with care
Workshop and production views for ORIFICE FLANGE — the same craftsmanship photos from our plant archives, shown in webp.
4 photos




People also ask
Questions about Flanges
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Flanges?+
Yes. Nascent Fittings Inc. manufactures and supplies Flanges for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Flanges worldwide?+
Yes. We export Flanges globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Flanges?+
Flanges is available in carbon steel, alloy steel, stainless steel, duplex, nickel alloys, copper alloys, aluminium, titanium and other project-specific materials as required.
Need pricing for ORIFICE FLANGE?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.


















