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Product name Orifice plate with a holding ring
Model F300

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Orifice plate with a holding ring
Model : F300 Catalogue Download : 
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.







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 300, 600, 900 and 1,500 Lb
Ring type joint (RTJ)
Pressure taps
Flange taps
Plate thicknesses
3, 6, 9 and 12 mm
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 25.4mm
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