ORIFICE FLANGE ASSEMBLES
DESCRIPTION
Orifice Flange Assemblies are used in conjunction with Orifice for flow measurement of smaller
or medium size pipes at lower or medium pressure ranges.
The flange connection is of an RF type and the differential pressure tapping system is with
flange taps.
SPECIFICATIONS
Orifice Flanges types :
Slip-on
welding neck
ring-joint welding
neck
Nominal diameters :
25mm(1 inch) to 500mm(20 inches)
Flange rating :
JIS 10, 20, 30Kg/cm©÷RF
ANSI(or JPI) 150, 300, 600, 900,
1500, 2500LB(RF, RTJ)
Flange material :
carbon steel
ASTM A182F304, 316, etc.
Duplex 2205, AL-6XN, 904L
Hastelloy C-276, 22. Monel 400, K-500.
Inconel 600/601, 625, 718. Incoloy 800/800H/800HT, 825
Materials of bolts and nuts :
STUD BOLT : A193-B7, B8, B8M, etc.
Nuts : A194-2H, 8, 8M, etc.
Jack bolts and nuts : A193-B7, B8, B8M, etc.
Gaskets :
Sheet Gasket : 1.5mm
Spiral Wounded Gasket : 4.5mm
Piping connection method :
JIS 10Kg/cm©÷ : Insertion welding type (slip-on type)
JIS 20,30Kg/cm©÷, ANSI and JPI : Butt welding type (welded neck)
Flange Ratings and Facings
Mounting |
Standard |
|
Slip-on |
JIS |
10 and 16kg/cm©÷(RF), 20kg/cm©÷(RF) |
ANSI |
Class 150 and 300 (RF) |
Welding neck |
JIS |
10 and 16kg/cm©÷(RF), 20kg/cm©÷(RF) |
ANSI |
Class 150 and 300 (RF) |
Welding neck |
ANSI |
Class 300, 600, 900 and 1500 ring-joint (RJ) |
Slip-on |
JIS |
5, 10 and 16kg/cm©÷(RF), 20kg/cm©÷(RF) |
ANSI |
Class 150 and 300 (RF) |
Welding neck |
JIS |
10, 16, 20, 30, 40 and 63kg/cm©÷(RF) |
ANSI |
Class 150, 300, 600, 900,1500 and 2500 LB (RF,RTJ) |
Top
|