Orifice Flanges
Orifice flanges are used instead of the standard pipe flanges when orifice plate or flow nozzle is used. The basic purpose for this is to measuring the flow rate of either gases or liquids in the respective pipeline. These flanges are used in various industrial applications and are available in various sizes and materials.
Specifications:

Orifice Flanges
- Size: 1/2” to 60”, DN 12mm to DN 1500mm
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- Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
- Facing: RF / RTJ
- Material:
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- Cabon steel: A105, A350 LF2
- Stainless steel: A182 F304/F304L/F316/F316L/F321
- Alloy steel: F11, F12
- Packing: plywood case and plywood pallet
Standards, Dimensions & Weight
- 300# Slip-On Orifice Flange
- 300# Weld Neck Orifice Flange
- 600# Weld Neck Orifice (raised face and RTJ ring type joint) Flange
- 900# Weld Neck Orifice (raised face and RTJ ring type joint) Flange
- 1500# Weld Neck Orifice (raised face and RTJ ring type joint) Flange
- 2500# Weld Neck Orifice (raised face and RTJ ring type joint) Flange