Ring type joint orifice plate_F300
Type: F300
 
Description
 
A holding ring assembly is a combination of a holder ring and an orifice plate designed for Ring type joint (RTJ) flanges of ANSI or JPI specifications. The holding ring  has  a function of holding the orifice plate and also a function as a gasket to prevent leakage of the process fluid. This metallic sealing system is applicable to a fluid of high temperature and high pressure, the pressure tapping system is normally the flange tap type.
 
Specification
 
Orifice bore type
 
Concentric square edged orifice Quadrant edged orifice
 
Flow calculation standards
 
ISO 5167-1 and 2 2003
AGA-3
ASME MFC-3M and 14M
JIS Z 8762
BS 1042
 
Flange ratings
 
ANSI class 600, 900, 1,500Lb and 2500Lb
Ring type joint (RTJ)
 
Pressure taps
 
Flange taps
 
Plate thickness
 
3, 6, 9, 12 mm and Over
 
Tab handle
 
Welded to ring
 
Holding ring
 
Riveted to plate
Types : Octagonal or oval
 
Drain and vent hole
 
Per ASME recommendations
Not drilled for orifice bores smaller than 25.4 mm
 
Markings
 
Upstream side of tab handle stamped with "Upstream" and with bore type and size, line size, tag number and flange rating
 
Special markings
 
Special marking may be furnished to meet Specific requirement
 
Materials
 
Plate : 304SS and 316L SS
Holding ring : Soft lron, 304SS and 316SS
Rivets : 304SS and 316SS
Tab Handle : 304SS and 316SS
 
 
Download:  CATALOG