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 

Orifice flange assembly F500