Orifice flange assembly_F500
Type: F500
 
Description
 
Orifice flange assembly is used in conjunction with orifice plate for flow measurement of smaller or medium size pipes at lower or medium pressure ranges. The flange connection is a RF type and the differential pressure tapping system is the flange taps.
 
Specification
 
Flange mounting type
 
Welding neck
Slip-on
Socket-weld
Ring-joint welding neck
 
Nominal diameter
 
25 ~ 600 mm
1" ~ 24"
 
Flange ratings
 
JIS 10, 20, 30, 40 and 63 K
ANSI (or JPI) 150, 300, 600, 900, 1500 and 2500Lb RF
 
Flange material
 
A105, A182-F304, A182-F316, A182-F11,
A182-F22 and A350-LF2 and Other
 
Materials of bolts and nuts
 
Stud blots : SNB7, A193-B7 and A194-B8 and Other
Nuts : S45C, A194-2H, A194-8 and OtherJack bolts and nuts : S25C and A307
 
Gasket
 
Thickness : 4.5 mm
Material : Spiral wound gaskets
 
Piping connection method
 
ANSI 150 Lb : Insertion welding type (Slip-on type)
ANSI 300, 600 Lb : Butt welding type (Welding neck)
ANSI 900 Lb : Butt welding neck (Ring-joint WN)
 
Differential pressure piping connection
 
Select referring to the model number construction table
 
Orifice bore type
 
Concentric square edged orifice
Quadrant edged orifice
Eccentric orifice
Segmental orifice
 
Flow claculation standards
 
ISO 5167-1 and 2 2003
AGA-3
ASME MFC-3M (R.W Miller)
L.K. Spink JIS Z 8762
 
Plate thickness
 
3,6,9 and 12 mm and Over
 
Plate material
 
Standard : 304SS and 316L SS
Non-standard : Monel, Hastelloy B/C, Titanium etc.
 
Drain and vent hole
 
Per ASME recommendations
Not drilled for orifice bores smaller than 25.4 mm
 
Markings
 
Upstream side of tab handle stamped "Upstream" and with bore type and size, line size, tag number and flange rating
 
Special markings
 
Special marking may be furnished to meet special requirement
 
 
Download:  CATALOG