Manufacturer of Mamometer temperature sensor, Flowmeter, Level gauge, Transmeter
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 |
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