ANSI B16.36 Orifice Flanges

Orifice Flange Explained (ASME B16.36)

An Orifice Flange is used in combination with orifice meters to measure the flow rate of oil, gas and other liquids conveyed by the pipeline. Orifice flanges are manufactured to ASME B16.36 in multiple sizes and, material grades. 

WHAT IS AN ORIFICE FLANGE?
Orifice plate flange is a orifice plate flowmeter that connects the orifice plate (the measuring part of orifice plate flowmeter) to the pipeline. Two flanges fix the orifice plate in the middle and lead it to the differential pressure transmitter through the pressure point on the flange to measure the flow.

Orifice flanges are available in all ASTM forged grades (ASTM A105, ASTM A350, ASTM A694, ASTM 182 respectively for carbon, alloy and, stainless steel flanges), dimensions (combinations of nominal sizes and pressure ratings) and, in socket weld, threaded or weld neck shape (WN is the most used).

Specification of product
ORIFICE FLANGE DIMENSIONS ASME B16.36

Orifice flange ASME

Dimensions are in millimeters (excluding bolts and bolt holes).
Different NPT sizes than 1/2 are available
Bolt lengths for RF flanges include an allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include the allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
Bore (B) has to be specified by the buyer
Stud Bolt lengths excl. the height of the chamfers

WELD NECK RF, CLASS 300

COMMENTS: Height of Raised Face (RF) in CLASS 300 is 2 mm

WELD NECK RF, CLASS 600

COMMENTS: Height of Raised Face (RF) in CLASS 600 is 2 mm at NPS 1 – NPS 3, and 7 mm at NPS 4 – NPS 24.

 ORIFICE FLANGE STANDARDS:
ASME STANDARDS

ASME B16.36 - Orifice Flanges

Slip-on Flange: Class 300, Class 400, Class 600, Class 900, Class 1500

Threaded Flange: Class 300, Class 400, Class 600, Class 900, Class 1500

Weld Neck Flange: Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500

Advantage of our products：

1.Raw material from reputed millsto guarantee the chemical composition and mechanical properties;

2.All flanges produced from forged raw material,which result to better grain size and microstructure.

3.Superior facilities and good experiences for fabrication;

4.Quality controlled to meet ISO 9001;

5.Products available for all standards like ANSI B16.5,ASME B16.47,SABS 1123, EN1092-1,JIS B2220, GB, ISO,GOST .

6.Provide full range of type (SO,WN,BL,SW,TH,LJ etc.) and sealing face (FF,RF,RTJ,MF,FMF,RTJ etc.)

7.Customized products available

8.100% inspection during produciton.

9.PMI test to verify material grade.

10.OEM avaible

11.Fast delivery is possible to meet your needs well in time

12.Low cost from bulk production will reduce your budget and improve your business.

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Why Choose Ronsco:

1.22 Years Of Manufacturing Experience

2.We offers a commendable range of Stainless Steel Pipe, Fittings, Flanges with competitive price.
3.Customizable, International Standards
4.Strict Testing Process, Quality Assurance
5.7*24H Online service.
Fast Delivery：7-15days

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