Orifice Flange

1 Wide range of materials, including
(1)Carbon Steel: ASTM A105N, ASTM A350 LF1, LF2 CL1/CL2 LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
(2)Stainless Steel: ASTM A182 F304/304L, F316/316L, F316H, F316Ti, F321, F44(UNS S31254)
(3)Alloy Steel: ASTM A182 F1, F5/a, F9, F11, F12, F22, F91
(4)Duplex&Super Duplex Steel: ASTM A182 F51/UNS S31803, F53/UNS S32750 F55/UNS S3260
(5)Special Alloy Steel: Monel400, Inconel 600, Inconel 625, Inconel 800, Inconel 825, Inconel C276

2 Ratings from 300 lb to 2500 lb
3 Sizes from 1" Nominal Bore
4 Corner Tapping Versions Available

5 General Description
Orifice flanges are intended for use instead of standard pipe flanges when an orifice plate or flow nozzle must be installed. Pairs of pressure tappings are machined into the orifice flange, making separate orifice carriers or tappings in the pipe wall unnecessary.
Thermocouple Instruments Ltd's orifice range of orifice flanges covers all standard sizes and ranges, and all common flange materials. Flanges are available in socket weld or weld neck form, and are typically supplied with two 1/2" NPT tappings in each flange. Jacking screws to ensure ease of removal of the primary
Flow element are provided.
Orifice plates and flow nozzles can also be supplied. See individual Product Data Sheets for more information.
Orifice flanges may also be supplied complete
With bolting and gasket kits.

6 Pressure Tappings
As standard, two 1/2" NPT tappings are provided in each flange, one with a plug. Other thread sizes are available on request. Socket weld connections may be specified, and butt weld pipe nipples are also available. Tappings are generally 'flange' type, but corner tappings are optional.

7 Printing: Yellow print, black print, oil or Zn.

8 Packing: Plywood Cases