3.2.1

EMS/

BEMS

Flowmetering

Gilflo and ILVA flowmeters

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

© Copyright 2014

TI-P337-06

MI Issue 7

Gilflo ILVA Flowmeters

System Overview

Description

The Spirax Sarco Gilflo ILVA flowmetering system consists of two

major parts:

1. The Gilflo ILVA pipeline unit. This is installed in the line where

the flow is to be measured. Using impulse pipework, this is

connected to:

2. The M610 DP transmitter assembly. This measures the

differential pressure across the Gilflo ILVA pipeline unit and

converts it to a 4 -20 mA output signal. This output signal can

be used in a number of ways:

i- To act as a suitable input to an EMS/BEMS which can be

programmed by the user to carry out the linearising of the

output signal based on the calibration data that is supplied

with each Gilflo ILVA flowmeter. Additional inputs from the

EL2600 pressure transmitter and EL2271 temperature

transmitter can be used to carry out density compensation

for compressible flow applications.

ii- To supply an M750 display unit. This gives a non-

compensated display of rate of flow and totalised flow. It is

suitable for liquid, gas and steam applications where density

compensation is not required.

iii- To supply a Spirax Sarco M850 flow computer. Use of the

pressure and temperature transmitters enables automatic

density compensation to be carried out for compressible

flow applications. See the relevant TI for details of

pressure / temperature limits for flow computers.

The Gilfo ILVA pipeline unit can be used to measure the flow of

most industrial liquids, gases and vapours within the pressure

and temperature limits detailed in the TI's.

Installation

Care must be taken to meet all the requirements of the Installation

and Maintenance Instructions that are included with the equipment.

Some installation points to watch are noted overleaf.

In addition, heat metering is possible on saturated steam systems

by replacing the EL2600 pressure transmitter with an EL2271

temperature transmitter in the condensate return line (M850

system only).

Electrical wiring

All electrical wiring must be carried out to the appropriate standards.

Full wiring interconnection details are included with the equipment.

Associated equipment

EL2271

Gilflo ILVA

F50C isolation valves

M610

temperature

transmitter

EL2600

pressure

transmitter

DP transmitter assembly

(for gas applications the

M610 DP transmitter is

mounted above the

Gilflo ILVA)

or

M750

display unit

Outputs,

alarms,

etc.

Outputs,

alarms,

etc.

or

flow computer

(steam / gas)

M850

Item

EL2271

EL2600

F50C

Gilflo ILVA

M610

M750

M850 Flow computer

Description

Temperature transmitter

Pressure transmitter

Isolation valve

Pipeline unit

DP transmitter assembly

Display unit

Steam or gas flow computer