General Information about Orifice Flanges

Quality Standard for Orifice Flanges

High quality Orifice Flanges all made and controlled to the relevant standards such as: ASME, ASTM, BS and DIN/WERKSTOFFE.

Sizes for Orifice Flanges

All Orifice Flanges are available available in sizes from 1/4” through to any size.

Wall Thickness for Orifice Flanges

Schedule 5s through to Schedule XXS and heavier.

Dimensions and Pressure Ratings for Orifice Flanges:

- ANSI, MSS- SP-44, BS3293, API 605 150lb through to 2500lb
- Flange Facings: Raised Face, Ring Type Joint, Large Tongue & Groove, Small Tongue & Groove
- BS4504 - PN6, 10, 16, 25, 64
- BS10 - Table D, E, F, & H
- DIN Standards

Special items according to customer drawings.

Material Grades for Orifice Flanges

Orifice Flanges are available in the following material grades:

• Stainless Steel
• A182 F304/L
• F310
• F316/L
• F321/H
• F347/H
• F410
• F440
• 904L
• Carbon Steel
• A105, C22.8

• Low Temperature Steel
• A350 LF2, LF3, LF6
• Alloy Steel
• A182 F1, F5, F9, F11, F12, F22, F91
• High Yield
• A694 F42, F52, F60, F65, F70
• 6% Moly / Duplex & Super Duplex
• A182 F44, F51, F53, F55
• Nickel Alloys
• 200, 400, K500, 600, 625, 800, 825

• Alloys
• ALLOY 20
• ALLOY C
• ALLOY C276
• ALLOY B2
• Aluminium
• 5083, 5154, 5251, 6061, 6063, 6082
• Unusual Grades
• Bronze, Brass, Copper
• Cupro Nickel
• Titanium