Important: Do not connect the straight male coupling to pipes made of stainless steel or
pipes made of nonferrous materials.
Note: We recommend that you use original Parker-Ermeto pipe unions.
Functional safety and reliability are ensured only if the material combination of the union
component and the pipe are intermatched.
We recommend that you contact our After-Sales Service for conversion work and when
installing additional devices.
9. Temperature test points
You can use a maximum of two temperature sensors for measuring
the gas temperature in the meter housing for the meter sizes listed
in the table below (quantometers cannot be fitted with thermowells in
the meter housing; on TRZ//TRZ-IFS/TRZ2 thermowells are optional
up to nominal diameter DN 200):
Max.
sens
or ø
TRZ
DN
Housing
material
PN 10/16
EBL
PN
25/40
EBL
ANSI 150
EBL
ANSI 300
EBL
ANSI 600
EBL
GGG - - - - - 50
GS - - - - -
GGG 45 - 45 - - 80
GS 45 - 45 - -
GGG 50 - 50 - - 100
GS 50 - 50 - -
GGG 50 - 50 - - 150
GS 50 - 50 - -
GS 58 - 58 - - 200
St. - 67 - - -
GS 95 - 95 - - 250
St. 160 160 160 160 160
300 St. 160 160 160 160 160
400 St. 160 160 160 160 160
500 St. 160 160 160 160 160
6
mm
600 St. 160 160 160 160 160
GGG -> Spheroidal graphite cast iron; GS -> Cast steel; St. -> Welded steel
EBL -> Rounded installation length of the thermowell in mm
Note that temperature measurement on measuring systems in the open air may be
influenced by the ambient temperature. For this reason, the metering elements outside
the pipe should be adequately insulated against ambient temperature influences. In order
to achieve optimum thermal conduction, you should also always fill the thermowell(s) with a
heat-conductive fluid or paste.
If no temperature test points in the meter housing are scheduled, the temperature must
be measured in the pipe downstream of the turbine gas meter at a distance of up to 3 x
DN, but max. 600 mm away.
All rights reserved. Subject to technical modification. Page 8 of 13
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