ASME B16.36 Orifice Flanges Manufacturer, Exporter & Supplier in India

About DIPTI Metal Industries

Founded in 2009 by Mr. Kumpsingh Rajput, DIPTI Metal Industries is a globally trusted and ISO-certified manufacturer, stockist, and exporter of ASME B16.36 Orifice Flanges. Our Mumbai-based production facility is equipped with advanced forging and machining capabilities, enabling us to supply high-quality forged orifice flanges that meet ASME, ANSI, EN, DIN, BS, JIS, ISO, GOST and other international standards.

We specialize in precision manufacturing, drilling, and machining of orifice flanges used for flow measurement in pipelines across industries like oil & gas, petrochemicals, refineries, marine, power plants, water treatment, and chemical processing.

What Are Orifice Flanges?

Orifice flanges are designed with pressure tap holes that allow measurement of flow rate (liquids or gases) using an orifice plate. Unlike ordinary flanges, they eliminate the need for separate pressure tapping on pipes.

At DIPTI®, we manufacture orifice flanges in three primary types:

• Welding Neck Orifice Flanges

• Slip-On Orifice Flanges

• Threaded Orifice Flanges

They are available in Class 300, 400, 600, 900, 1500, and 2500 pressure ratings, ensuring safe and accurate flow monitoring in pipelines operating under different pressures and temperatures.

Technical Specifications

• Standards: ASME B16.36, ASME B16.5, ASME B16.47 Series A & B, EN 1092-1, BS 4504, DIN, UNI, JIS, GOST

• Pressure Ratings: Class 150, 300, 400, 600, 900, 1500, 2500 | PN6 – PN400

• Face Types: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF)

• Manufacturing Forms: Forged Steel, Machined Bar, Custom Designed per Drawings

• Testing & Certificates: EN 10204 3.1 / 3.2 Mill Test Reports, 100% Radiography, Third-Party Inspection by BV, TUV, Lloyds, DNV, SGS

Materials & International Grade Equivalents

Stainless Steel Orifice Flanges

• ASTM A182 F304 / 304L / 304H → EN 1.4301 / 1.4307

• ASTM A182 F316 / 316L / 316H / 316Ti → EN 1.4401 / 1.4404 / 1.4571

• ASTM A182 F310S → EN 1.4845

• ASTM A182 F321 / 321H → EN 1.4541 / 1.4878

• ASTM A182 F347 / 347H → EN 1.4550 / 1.4912

• 904L → EN 1.4539

• SMO 254 → EN 1.4547

Duplex & Super Duplex Steel Orifice Flanges

• UNS S31803 / S32205 → EN 1.4462

• UNS S32750 / S32760 → EN 1.4410 / Zeron 100

Carbon Steel Orifice Flanges

• ASTM A105, A350 LF2 / LF3, A694 F42 – F70

• EN equivalents: C22.8, 1.0460

Alloy Steel Orifice Flanges

• ASTM A182 F1, F5, F9, F11, F22, F91

• EN equivalents: 10CrMo910, 13CrMo4-5, etc.

Nickel & Special Alloys

• Nickel 200 / 201

• Monel 400 / K500

• Inconel 600, 601, 625, 800, 825

• Hastelloy C22, C276, B2, B3

• Alloy 20, Titanium Grades 1 & 2

Copper Alloys

• Cu-Ni 90/10 (UNS C70600)

• Cu-Ni 70/30 (UNS C71500)

Value Added Services

• Surface Coatings: Anti-rust oil, hot dip galvanizing, zinc plating, epoxy coating

• Machining: CNC Drilling, Custom Tapping, Beveling, Facing

• Custom Solutions: Orifice flanges made to customer drawings with precision drilling

Applications

• Flow measurement in oil & gas pipelines

• Petrochemical and refinery systems

• Power plants & boilers

• Marine and offshore engineering

• Water treatment & wastewater industries

Export Destinations

We export DIPTI® Orifice Flanges worldwide including:

Middle East: UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Iraq, Iran, Turkey
Europe: Germany, UK, Italy, France, Spain, Netherlands, Belgium, Russia
North America: USA, Canada, Mexico
South America: Brazil, Chile, Argentina, Colombia
Africa: South Africa, Nigeria, Egypt, Kenya
Asia-Pacific: India, Japan, South Korea, Singapore, Malaysia, Indonesia, Vietnam, Thailand, Australia

Why Choose DIPTI® Orifice Flanges?

• Certified Manufacturer with ISO & PED approvals

• Wide range of grades, sizes, and pressure classes

• Manufactured in compliance with ASME B16.36 & international standards

• Precision drilling and machining in our Mumbai plant

• Proven global track record with exports to 50+ countries