Encyclopedia of Environmental Science and Engineering, Volume I and II

1102 STACK SAMPLING

SECTION AA

CURVED OR

MITERED JUNCTION

90° BEND

A

A

D

STATIC

HOLES

(~0.1D)

IN OUTSIDE

TUBE ONLY

HEMISPHERICAL TIP

IMPACT OPENING-

INNER TUBE ONLY

60 (MIN.)

80 (MIN.)

MANOMETER

Standard pitot tube design specifications.

1.90–2.54 CM

(0.75–1.0 IN.)

7.62 CM

(3 IN.)**

TEMPERATURE SENSOR

TYPE S PITOT TUBE

L*

GAS FLOW

FLEXIBLE TUBING

6.25 MM (1/4 IN.)

LEAK-FREE

CONNECTIONS

MANOMETER

*L = DISTANCE TO FURTHEST SAMPLING

POINT PLUS 30 CM (12 IN.)

**PITOT TUBE - TEMPERATURE SENSOR SPACING

Type S pitot tube-manometer assembly.

FIGURE 4 Type S pitot tube-manometer assembly.

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