Figure 1.
Soft-Seated Type 66 Regulator (with external control line)
*Recommended spare part.
NOMINAL BODY SIZE
END CONNECTION STYLES AND RATINGS
(1)
DN
In.
Standard Cast Iron Body
Optional Steel Body
50
2
NPT or CL125 FF
NPT (all types), CL150 RF (all types), CL150 FF, CL300 RF
80, 100
3, 4
CL125 FF
CL150 RF
Table 1.
Body Sizes and End Connection Styles
(1)
Table 2.
Outlet Pressure Ranges
OUTLET PRESSURE RANGES
Type
mbar
in. w.c.
66
10 to 27
20 to 70
5 to 12
10 to 20
4 to 11
8 to 28
2 to 5
4 to 8
17 to 30
25 to 42
35 to 70
0.05 to 0.10 bar
7 to 12
10 to 17
14 to 28
0.75 to 1.5 psig
0.07 to 0.14 bar
0.10 to 0.21 bar
0.21 to 0.34 bar
1 to 2 psig
1.5 to 3 psig
3 to 5 psig
66Z
-2.5 to 5
-1 to 2
66ZZ
-0.6 to 0.6
-0.25 to 0.25
66 Series vacuum regulators or breakers
0 to -5
-0.7 to -2
-5 to -15
0 to -2
-0.2 to -0.8
-2 to -6
Key Description
21
Cap Screw
22
Hex Nut
23
Stop Nut
25
Adjusting Screw
26* Closing Cap Gasket
27
Closing Cap
28
Flapper Valve
29
Snap Ring
30
Y602-10 Vent Assembly
31
Pipe Plug (not shown)
34 Washer
35* Gasket
36
Washer, Types 66 and 66Z only
37
Sealing Washer
38
Counter Spring, Type 66Z only
43
Spring Retainer, Type 66ZZ only
44
Set Screw, for Type 66 with external control line and adjustable
travel stops
45
Hex Nut, for Type 66 with external control line and adjustable
travel stops
46
Adjusting Screw Cap, for Type 66 with external control line and
adjustable travel stops
47
Adjusting Cap Gasket, for Type 66 with external control line and
adjustable travel stops
48
Upper Travel Stop, for Type 66 with external control line and
adjustable travel stops
49
Lower Travel Stop, for Type 66 with external control line and
adjustable travel stops
50
Lock Washer, for Type 66 with external control line and adjustable
travel stops
51 Plug
52
Spring Case Coupling, Type 66ZZ only
53
Spring Case Extension, Type 66ZZ only
54
Ball, Type 66ZZ only
57
Retaining Ring, Type 66ZZ only
66* Casing Gasket
68
Flow Arrow
69
Drive Screw
Parts List
CJ8392-F
CK4805-D
A2502-1
31
NOT SHOWN
APPLY LUB
69
25
26
27
68
36
32
5
4
33
2
17
13
18
51
16
22
20
19
1
9
23
37
8
34
3
21
28
29
30
10
11
15
35
14
7
Types 66, 66Z and 66ZZ
3
