ASME B16.36 Orifice Flanges

TYPE: WN, SO, THREADED. Material: A105, A350 LF2, A36, A182 F11/F304/F316/F51/F53/F55 etc. Size: 1/2"~24" Pressure: CLASS 300 ~ CLASS 2500 Thickness: Sch5s/10s/40s/Std/60/80/xs/120/160/xxs. Flange Facing: RF, FF, RTJ, M&F, T&G. Standard: ASME B16.36 Customization: OEM/ODM service Samples: Sample service available

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Product Description

ASME B16.36 Orifice Flanges Manufacturer | Global Supplier for High-Precision Flow Measurement Solutions

Xi'an QinSteel Trading Co., Ltd specializes in manufacturing ASME B16.36 Orifice Flanges that meet rigorous industrial standards. Designed for precise flow measurement in oil, gas, and chemical industries, our flanges ensure leak-proof performance, dimensional accuracy, and compliance with global certifications. With ready-to-ship inventory and custom OEM solutions, we deliver reliability when your project timelines demand it.

What Are ASME B16.36 Orifice Flanges?

The products are critical components in flow measurement systems. They house orifice plates to calculate fluid flow rates via differential pressure. Engineered to ASME B16.36 standards, these flanges feature precise tap holes and chamber designs for accurate data collection in pipelines, refineries, and high-pressure gas networks.

Material Specifications

STANDARD	TYPE	SIZE	PRESSURE
ASME B16.5	WN, SO, SW, BLD, THREADED, LP	1/2" ~ 24"	CLASS 150 ~ 2500
ASME B16.36	WN, SO, THREADED	1/2" ~ 24"	CLASS 300LB ~ 2500
ASME B16.47	WN BLD	26" ~ 60"	CLASS 75 ~ 900
ASME B16.48	SPECTACLE BLANKS, SPADES, RING SPACERS	1/2" ~ 24"	CLASS 150 ~ 2500
AWWA C207	STEEL RING, BLD, STEEL HUB	4" ~ 96"	86 ~ 275 PSI
API 6A	WN, BLD, THREADED, INTEGRAL, TEST	2-1/16" ~ 20-3/4"	13.8 MPa ~ 138.0 MPa
API 605	WN	26" ~ 60"	CLASS 150 ~ 900
SANS 1123	WN, PLATE, SCREWED, SO, LOOSE, BLANK, INTEGRAL	DN 10 ~ 3600	250 ~ 4000 kPa
AS 2129	BLD, PLATE, BOSS, WN	DN 15 ~ 1800	TABLE A ~ TABLE T
BS 3293	SO, WN	26" ~ 48"	CLASS 150 ~ 600
BS 4504	PLATE, LOOSE, BLANK, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 4000	PN 6 ~ 40
EN 1092-1	PLATE, LOOSE, BLIND, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 3600	PN 6 ~ 400
JIS B2220	SOP, SOH, SW, WN, LJ, TR, IT, BL	DN 10 ~ 1500	5 ~ 63 K
MSS SP-44	BLD, WN	12" ~ 60"	CLASS 150,19.6bar ~ CLASS 900, 153.1 bar

Materials & Customization

Material Options

Carbon Steel: A105, A36
Low-Temp Steel: A350 LF2
Stainless/Duplex: F304, F316, F51, F53, F55

Optional Enhancements

Coatings: Xylan, galvanizing, or cryogenic treatments
Facing Types: RF, FF, RTJ, M&F, T&G
Bore Sizes: Customized to match orifice plate requirements

Why Our ASME B16.36 Orifice Flanges Stand Out?

1. Precision Engineering

Strict adherence to ASME B16.36 ensures ±0.1mm tolerance on critical dimensions, guaranteeing seamless orifice plate alignment.

2. High-Pressure Reliability

Tested up to 1.5x rated pressure (per ASME guidelines) for leak-free operation in Class 300–2500 systems.

3. Global Compliance

Certified to API 6A, ISO 9001, and PED, with optional NACE MR0175 for sour service.

4. Fast Delivery

70% of standard sizes ship within 3 days—ideal for urgent project needs.

Applications

Oil & Gas Pipelines: Flow rate monitoring in transmission networks.
Refineries: Process control for crude distillation units.
Chemical Plants: Handling corrosive media with alloy or duplex steel flanges.
LNG Facilities: Cryogenic-grade materials for sub-zero environments.

Quality Assurance

Every ASME B16.36 Orifice Flange undergoes:

Dimensional Checks: Laser scanning for bore alignment and face flatness.
Material Verification: MTCs with traceable heat numbers.
Pressure Testing: Hydrostatic tests per ASME B16.36 Section 6.

Trusted by Global Operators

With an ASME-certified factory and expertise in flow measurement systems, we've supplied ASME B16.36 Orifice Flanges to oil majors and EPC firms across 30+ countries.