18

46-602 B40 Liquid Level Switches

B4

0

MATERIALS OF CONSTRUCTION/PRESSURE RATING (PSIG)

BASIC MODEL

B40

B40 Liquid Level Switch

ΠFloat material based on availability. Both 321SS and 347SS are stabilized

austenitic stainless steels.

 Consult factory for NEMA 4X/7/9 cast iron housings.

Ž Aluminum enclosure limited to +750° F (+399° C) in hazardous locations.

 Process temperature based on +100° F (+38° C) ambient.

 On steam applications, temperature down-rated to +400° F (+204° C) process

at +100° F (+38° C) ambient.

Chamber

Material

Float

Material

Tank

Connection

Mininum

S.G.

Temperature° F

100

500

750

800

1000

PF30

Chrome-Moly

1” butt-weld

0.65

1573

1573

1552

n/a

n/a

HF30

n/a

n/a

n/a

1510

661

PB60

1” socket weld

1573

1573

1552

n/a

n/a

HB60

n/a

n/a

n/a

1510

661

PC30

Carbon Steel

1444

1444

1251

n/a

n/a

PC40

316 SS

weld

3700

3543

3169

n/a

n/a

HC40

n/a

n/a

n/a

3129

3011

PC20

Carbon Steel

1” socket weld

1335

1335

1157

n/a

n/a

4.5.2 Part Number ASME B31.1 Construction