Integral Flow Orifice Assembly

General Instruments Integral Flow Orifice Assembly

GIC is the leading Integral Flow Orifice Assembly Manufacturer in India providing reliable solutions for accurate pressure measurement to the process industry worldwide.

Integral Flow Orifice Assembly is used when a Differential Pressure Transmitter has to be directly mounted on the orifice assembly. This eliminates the cost of installation of a Differential Pressure Transmitter with impulse piping up to the orifice assembly. The transmitter is mounted on the orifice assembly through a 3/5 Valve H-type manifold. Available with line sizes of 2 & below. However, due to process temperature limits of the transmitter, this assembly cannot be used for process temperatures above 120 Degrees Centigrade.

The assembly consists of an orifice plate between two integral blocks having corner taps. Generally, a meter run pipe is recommended with an upstream length of 750mm and a downstream length of 250mm. The pipes are welded to the blocks with end flanges.

Routine tests:

a) PMI Test
b) Dye Penetration test
c) Hydro Test
d) Radiography Test
e) Calibration
f) NACE

Advantages:

• Use of an integral orifice flow meter will eliminate the measurement inaccuracies recorded in small orifice line installations.
• The Integral Orifice honed body reduces ID uncertainty
• By inserting precision bored upstream and downstream sections of pipe, the velocity profile distortion due to pipe roughness is reduced.
• The self-centering design of the Integral Orifice Plate eliminates plate misalignment.

Improves reliability and maintenance costs

• The integral orifice flow meter eliminates impulse lines, reducing leak points by over 50% and decrease start-up time due to the flexibility of numerous process connection options. The direct mount design minimizes line plugging by eliminating long lines, small-bore ports, and crevices while providing consistently reliable installations.
• Integral manifold head allows direct mounting of DP transmitters
• Ideal fluid types: liquid, gas, and steam below 120°C