7
Tuffy Liquid Level Control with Pneumatic Switch
2.6
Parts
2.6.1 Physical
Pneumatic switch models
3.75 (95)
Float
minimum
clearance
2" NPT
2.50 (64) Dia.
.75
(19)
C
L
3.00 (76) max.
Nozzle length
7.96 (202) [Sp. Gr. 0.6 min.]
Float size = 2.00 (51) Dia. x 4.57 (116) long
8.91 (226) [Sp. Gr. 0.4 min.]
Float size = 2.00 (51) Dia. x 5.12 (130) long
Switch actuates
Rising level
Falling level
Switch actuates
12.94 (329) [Sp. Gr. 0.4 Min]
12.00 (304) [Sp.Gr. 0.6 Min]
1/4" NPT
inlet (A)
1/4" NPT
outlet (C)
1/4" NPT
inlet (B)
Pressure:
0.6 SG 1500 psig at +300° F (103 bar at +149° C)
0.4 SG 500 psig at +300° F (34 bar at +149° C)
Process Temperature:
-40° F to +300° F (-40° C to +149° C)
Ambient Temperature:
Max. +100° F (+38° C) with maximum process temperature
Pneumatic Switch Supply Pressure:
Vacuum to 200 psig (13.8 bar) maximum
Maximum Leakage Rate:
0.5 SCFH (0.015 SCMH @ 100 psig (6.9 bar))
Maximum Air Flow:
12.0 SCFH (0.34 SCMH @ 100 psig (6.9 bar))
Specific Gravity:
0.6 minimum or 0.4 minimum
Materials of Construction:
316/316L SS wetted components including NACE and ASME B31.3
Housing:
316 stainless steel
2.5
Specifications
2.5.1 Mechanical Specifications
0
3
9
6
0
0
0
1
0
BASIC MODEL NUMBER
0 3 9
Tuffy Float Switch
SWITCH ACTION
6
Pneumatic
HOUSING
0
316 Stainless steel with
1
/
4
" NPT airline connections
SPECIFIC GRAVITY AND PRESSURE RATINGS
0
0.60 minimum S.G., 1500 psi maximum pressure
4
0.40 minimum S.G., 500 psi maximum pressure
2.7
Model Numbers
