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- EMCO - Model ISB/1 - Orifice Plate
EMCO - Model ISB/1 -Orifice Plate
The EMCO Orifice Plate is used as a primary element in flow measurement of liquid, gas and steam applications according to the differential pressure principle. According to this working principle, the orifice plate creates a flow restriction in the pipeline to allow measurement of the resulting pressure drop and flow rate. Our orifice plates have been tested and tried for over 50 years and measure up to the highest industry and compliance standards. The Orifice Plate Series ISB/1 is a single bore plate for mounting between raised face flanges.
- Predictable pressure loss
- Simple construction
- Proven design
- Cost-effective
Construction
Design and calculation standards: ISO 5167-2, ASME MFC-3M, ISA RP 3.2, Shell Flow Meter Engineering Handbook, L. K. Spink, AGA no. 3
Sizes: 2" - 24" according to ANSI b 16.36, 50 mm < D < 1000 mm according to ISO 5167-2 and 50 mm < D < 900 mm according to ASME MFC-3M
Pressure rating: 300 - 600 lbs RF
Plate thickness: 3 - 16 mm depending on plate size
Bore (d): d > 12,5 mm
β (d/D): 0,2 < β < 0,75 for highest accuracy.
Vent or drain hole: On request
Material: AISI 316, Duplex, Monel, 6Mo, Titanium, others on request
Mounting style: Between raised face flanges according To ANSI B16.36 or DIN 19214, other standards on request
Orifice plate shapes: Square edge concentric as standard. See above illustrations for alternative shapes.
Handle: With name plate in AISI 316 with the following inscription : TAG no., serial no., pressure rating, inner pipe diameter., bore, material.
Technical Data
Accuracy: +/- 0,6 % for β < 0,6 and equal to β for values above 0,6
Pressure loss: Depending on β, for β equal to 0,6 : ca. 60 % of the differential pressure measured
Limits for Reynolds No: Re > 1260 x β^2 D according to ISO 5167 2000 < Re < 10^8 according to ASME MFC-3M