IM-P192-02
MI Issue 2
6
2. General product information
This manual explains how to install, commission and maintain the Spirax Sarco TVA flowmeter
for use on saturated and superheated steam.
2.1 Product description
The Spirax Sarco TVA flowmeter is designed to reduce the cost of flowmetering and is used
as an accurate means to measure steam flowrates and record total flow.
For saturated steam installations the TVA flowmeter is a stand alone device and requires no
other equipment, such as differential pressure transmitters, pressure sensors, etc. to calculate
mass flowrates of saturated steam.
With superheated steam installations, the addition of the pressure sensing kit is required to
enable mass flowrates to be measured where the relation between pressure and temperature
has been lost (steam saturation curve).
2.2 Equipment delivery and handling
Factory shipment
Prior to shipment, the Spirax Sarco TVA flowmeter is tested, calibrated and inspected to
ensure proper operation, including the wired communications.
Receipt of shipment
Each carton should be inspected at the time of delivery for possible external damage. Any
visible damage should be recorded immediately on the carrier’s copy of the delivery slip.
Each carton should be unpacked carefully and its contents checked for damage.
If it is found that some items have been damaged or are missing, notify Spirax Sarco immediately
and provide full details. In addition, damage must be reported to the carrier with a request
for their on-site inspection of the damaged item and its shipping carton.
Storage
If a flowmeter is to be stored prior to installation, the environmental storage conditions should
be at a temperature between 0
°C and 55
°C (32
°F and 131
°F), and between 10% and 90%
relative humidity (non-condensing).
2.3 Sizes and pipe connections
DN50, DN80 and DN100
The TVA flowmeter is of a 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 300
Korean Standard KS 20.
