T
3
0
0
2.8 Model Numbers
2.8.1 Standard Narrow Differential Models
44-607 Tuffy
®
II Liquid Level Switch
22
T 3
TUFFY
II
Electric Liquid Level Switch
PROCESS CONNECTION MATERIAL/DESIGN CODE
SWITCH TyPE
HOUSING MATERIAL/APPROvAL
See opposite page
complete order code for
TUFFy
II
Float Level Switch
Compatible Model Codes
Process
Process Connection
Function/Float
Connection
Material/Design
Code
Size
Codes
Type Codes
Codes
2
2"
1, 5
N
B, F, K, P
3
ANSI 3"
1, 2, 3, 5
A, B, C, D
All
4
ANSI 4"
1, 2, 3, 4, 5
A, B, C, D, E
All
5
ANSI 5"
1, 2, 3, 5
A, B
All
6
ANSI 6"
1, 2, 3, 5
A, B
All
PROCESS CONNECTION SIzE
Compatible Model Codes
Function/
Process
Process Connection
Float
Connection
Material/Design
Code
Type
Codes
Size Codes
Codes
N
NPT
1, 5
2
B, F, K, P
A
ANSI RF Flange, 150#
1, 2, 3, 5
3, 4, 5, 6
All
B
ANSI RF Flange, 300#
1, 2, 3, 5
3, 4, 5, 6
All
C
ANSI RF Flange, 600#
2, 5
3, 4
A, B, E, F, J, K, N, P, 1, 2
D
ANSI RF Flange, 900#
2, 5
3, 4
A, B, E, F, J, K, N, P, 1, 2
E
ANSI RF Flange, 1500#
4
4
A, B, E, F, J, K, N, P, 1, 2
PROCESS CONNECTION TyPE
➀
FUNCTION/FLOAT
BASIC MODEL NUMBER
Code
Level
Differential
SGU
Min
Max.
➀
Pressure
psig (bar)
Compatible Model Codes
Process
Connection
Size Codes
Process
Connection
Type Codes
Process Connection
Material/Design
Codes
1
Narrow
(0.5")
0.40
750 (52)
All
N, A, B
A,B,E,F,J,K,N,P,1,2
2
0.60
2220 (153)
3, 4, 5, 6
A, B, C, D
A,B,E,F,J,K,N,P,1,2
3
0.65
750 (52)
3, 4, 5, 6
A, B
C,D,G,H,L,M,R,T
4
0.70
2630 (181)
4
E
A,B,E,F,J,K,N,P,1,2
5
0.60
1800 (124)
All
N, A, B, C
A,B,E,F,J,K,N,P,1,2
➀
Rated pressure limited by maximum Float or
Flange pressure, whichever is less.
