© Siemens AG 2008

SITRANS P measuring instruments for pressure

Remote seals for transmitters and pressure gages

Technical description

Temperature error Clamp-on seals

Temperature errors of clamp-on seals when connected to pressure transmitters for pressure and absolute pressure, and with single- sided connection to pressure transmitters for differential pressure

Nominal diameter/

Temperature error of remote

Temperature error of

Temperature error of pro-

Recommended min. spans

 

design

seal

 

capillary

 

cess flange/connection

(guidance values, observe

2

 

 

 

 

 

spigot

 

temperature error)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mbar/10 K

(psi/10 K)

mbar/10 K

(psi/10 K)

mbar/10 K

(psi/10 K)

mbar

(psi)

 

 

 

 

 

 

 

 

 

 

 

 

DN 25 (1 inch)

6.0

(0.0870)

8.5

(0.123)

8.5

(0.123)

1000

(14.5)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 40 (1½ inch)

4.5

(0.065)

4.5

(0.065)

4.5

(0.065)

250

(3.63)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 50 (2 inch)

4.0

(0.058)

3.0

(0.044)

3.0

(0.044)

100

(1.45)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 80 (3 inch)

9.5

(0.138)

5.0

(0.073)

5.0

(0.073)

100

(1.45)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 100 (4 inch)

8.0

(0.012)

3.0

(0.044)

3.0

(0.044)

100

(1.45)

 

 

Temperature errors of clamp-on seals with double-sided connection to pressure transmitters for differential pressure

 

 

 

 

 

 

 

 

 

 

Nominal diameter/

Temperature error of remote

Temperature error of

Temperature error of pro-

Recommended min. spans

 

design

seal

 

capillary

 

cess flange/connection

(guidance values, observe

 

 

 

 

 

 

spigot

 

temperature error)

 

 

 

 

 

 

 

 

 

 

 

 

 

mbar/10 K

(psi/10 K)

mbar/10 K

(psi/10 K)

mbar/10 K

(psi/10 K)

mbar

(psi)

 

 

 

 

 

 

 

 

 

 

 

 

DN 25 (1 inch)

2.3

(0.033)

1.8

(0.026)

1.8

(0.026)

1000

(14.5)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 40 (1½ inch)

0.8

(0.012)

0.3

(0.004)

0.3

(0.004)

250

(3.63)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 50 (2 inch)

0.3

(0.004)

0.1

(0.002)

0.1

(0.002)

100

(1.45)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 80 (3 inch)

3.0

(0.044)

0.5

(0.007)

0.5

(0.007)

100

(1.45)

 

 

 

 

 

 

 

 

 

 

 

 

 

DN 100 (4 inch)

1.0

(0.015)

0.1

(0.002)

0.1

(0.002)

100

(1.45)

 

 

 

 

 

 

 

 

 

 

 

 

 

Remarks:

Values apply for the filling liquids silicone oil M5, silicone oil M50, high-temperature oil, halocarbon oil and food oil (FDA listed).

Half the values apply to glycerin/water mixture as the filling liquid.

Values apply to stainless steel as the diaphragm material.

Diaphragm thickness 0.05 mm (0.002 inch) for DN 25/DN 40/DN 50 and 0.1 mm (0.004 inch) for DN 80/DN 100

Siemens FI 01 · 2009

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Image 155
Siemens P technical specifications 155, Temperature error Clamp-on seals