Flowmetering

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

Target flowmeters

In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2016

TI-P192-01

MI Issue 3

TVA

Flowmeter for

Saturated and Superheated Steam Service

Description

The Spirax Sarco TVA flowmeter is designed for use on saturated and superheated steam (with the dedicated pressure sensor kit) and

operates on the target principle, by measuring the force produced on a moving cone by the fluid flow. This force is then converted into

density compensated mass flowrate and is transmitted via a single loop powered 4-20 mA and pulsed output. TVA flowmeters also

incorporate a totalised flow function and EAI 232C (RS 232) or EAI 485C (RS485) Modbus communications.

Pressure/temperature limits

Pressure bar g

The product should not be used in this region due to

software limitations.

Sizes and pipe connections

DN50, DN80 and DN100

The TVA flowmeter is of wafer design, suitable for fitting between

the following flanges:

EN 1092 PN16, PN25 and PN40

BS 10 Table H

ASME B 16.5 Class 150 and Class 300

Japanese Industrial Standard JIS 20

Korean Standard KS 20

Note: Spirax Sarco TVA flowmeters should be installed in

pipework manufactured to BS 1600, ASME B 36.10 Schedule 40

or EN 10216-2 / EN 10216-5 equivalent. For systems with different

standards / schedules , please contact Spirax Sarco.

Steam

saturation

curve

Maximum design pressure

Maximum design temperature

Minimum design temperature

Horizontal

Superheated steam

32 bar g @ 239 °C

239 °C

0 °C (non-freezing)

23 bar g @ 239 °C

*

32 bar g @ 239 °C

7 bar g @ 170 °C

0.6 bar g

239 °C

0 °C (non-freezing)

55 °C

Maximum flow

operating

Saturated steam

Saturated steam only

pressure

flow

Vertical

Minimum operating pressure

Maximum operating temperature (saturation)

Minimum operating temperature

Maximum electronics ambient temperature

Maximum electronics humidity level

90% RH (non-condensing)

Designed for a maximum cold hydraulic test pressure of 52 bar g

High pressure syphon tube assembly

Maximum design pressure

Maximum design temperature

Maximum working conditions

Pressure sensing kit

Maximum operating temperature

Minimum operating temperature

Maximum operating pressure

80 bar g

450 °C

60 bar g @ 450 °C

125 °C

0 °C (non-freezing)

50 bar g

Maximum ambient temperature (cable+connector)

70 °C

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