Flowmetering Gilflo and ILVA flowmeters 3
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P337-69) supplied with the product. Installation note The following main points are given here for guidance only:
The flowmeter should be mounted with a minimum of 6 straight pipe diameters upstream and 3 downstream. No valves, fittings or cross sectional changes are permitted within these pipe lengths. Where a single plain bend or an increase in nominal pipe diameter is required upstream of the flowmeter, the length of straight pipe should be increased to 12 diameters. Similarly, where a flowmeter is installed downstream of two 90 ° bends in two planes, a pressure reducing valve or a partially open valve, 12 pipe diameters should be allowed upstream and 6 downstream. It is important that the internal upstream and downstream diameters of pipe are smooth. Ideally seamless pipes should be used. It is recommended that slip-on flanges be used to avoid any intrusive weld beads on the internal diameter of the pipe. Care should be taken to install the flowmeter concentrically in the line. If this is not done, flow measurement errors may occur. The flowmeter should be mounted horizontally. For vertical installations, consult Spirax Sarco. For steam applications, good basic steam engineering practices should be followed:
- Correct pipeline drainage through adequate trapping. - Good alignment and support of associated pipework. - Pipeline size changes achieved by the use of eccentric reducers.
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Spare parts The spare parts available are detailed below. No other parts are supplied as spares. 3374380 - Gasket and fastener spares kit
3374381 - 2 way manifold and fastener spares kit 3374382 - Pressure sensor and cable spares kit 3374383 - Electronics spares kit 3374384 - MVT10 spares kit (Option 1) A new MVT10 with the original ILVA20 calibration data downloaded. Note : The system accuracy cannot be guaranteed.
3374385 - MVT10 spare (Option 2) - Full Recalibration (DN150 [6"]) 3374485 - MVT10 spare (Option 2) - Full Recalibration (DN200 [8"]) 3374585 - MVT10 spare (Option 2) - Full Recalibration (DN250 [10"]) 3374685 - MVT10 spare (Option 2) - Full Recalibration (DN300 [12"]) The original ILVA20 returned for recalibration and a new MVT10 supplied with recalibration data.
Disposal The product is recyclable. No ecological hazard is anticipated with the disposal of this product providing due care is taken.
How to order Example: 1 off Spirax Sarco DN150 flowmeter for installation between EN 1092 PN40 flanges. The flow medium is saturated steam at 10 bar g, maximum flow 10 692 kg/h.
TI-P337-70 EMM Issue 9
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ILVA20 Flowmeter and MVT10 Differential Pressure Transmitter for Saturated and Superheated Steam Service
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