CALEFFI DISCAL NA551 Series, Installation, Commissioning And Servicing Instructions

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D
B
E
A A
A
D
B
E
A
A
D
B
E
A
F
G
F
B
A
D
E
F F
A
D
B
E
F
A
G
F
B
A
D
E
Tmax 250 F
Pmax 150 psi
Tmax 220 F
Pmax 150 psi
BI-DIRECTIONAL
38466.01
Tmax 250 F
Pmax 150 psi
Tmax 220 F
Pmax 150 psi
BI-DIRECTIONAL
38466.01
A
A
D
E
C
C
C
C C
C C
B
G
A
D
B
E
A
F
C
* Add suffix C to sweat, NPT and press (below) code numbers when
ordering the brass DISCAL to ship with expansion tank service check
valve, code 561402A.
D
B
E
A A A
D
B
E
A
A
D
B
E
A
F
G
F
B
A
D
E
F F
A
D
B
E
F
A
G
F
B
A
D
E
Tmax 250 F
Pmax 150 psi
Tmax 220 F
Pmax 150 psi
BI-DIRECTIONAL
38466.01
Tmax 250 F
Pmax 150 psi
Tmax 220 F
Pmax 150 psi
BI-DIRECTIONAL
38466.01
A
A
D
E
C
C
C
C C
C C
B
G
A
D
B
E
A
F
C
Code A B C D E F Wt (lb)
551 005A*
3
⁄
4
" NPT 4
5
⁄
16
" 2
3
⁄
16
" 5
3
⁄
4
" 7
1
⁄
2
"
1
⁄
2
" 3.7
551
006A* 1" NPT 4
5
⁄
16
" 2
3
⁄
16
" 5
3
⁄
4
" 7
1
⁄
2
"
1
⁄
2
" 3.7
551 007A* 1
1
⁄
4
" NPT 4
7
⁄
8
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 4.9
551
008A* 1
1
⁄
2
" NPT 4
7
⁄
8
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 4.9
551 009A* 2" NPT 5
1
⁄
8
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 5.5
551 028A* 1" SWT 5
1
⁄
16
" 2
3
⁄
16
" 5
3
⁄
4
" 7
1
⁄
2
"
1
⁄
2
" 3.7
551 035A* 1
1
⁄
4
" SWT 5
3
⁄
16
" 2
3
⁄
16
" 6
5
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 3.7
551 041A* 1
1
⁄
2
" SWT 5
3
⁄
4
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 4.9
551
054A* 2" SWT 6
1
⁄
8
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 5.5
Code A B C D E F Wt (lb)
551 066A* 1" press 6
3
⁄
16
"
2
3
⁄
16
" 5
3
⁄
4
" 7
1
⁄
2
"
1
⁄
2
" 3.8
551
067A* 1¼" press 7
7
⁄
16
" 2
3
⁄
16
" 5
3
⁄
4
" 7
1
⁄
2
"
1
⁄
2
" 5.0
551 068A* 1
1
⁄
2
" press 8
"
2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 5.1
551
069A* 2" press 8
1
⁄
2
" 2
3
⁄
16
" 6
9
⁄
16
" 8
1
⁄
4
"
1
⁄
2
" 5.5
Code A Lay length
551 066A* 1" press 4
1
⁄
2
"
551 067A* 1¼" press 5
1
⁄
8
"
551 068A* 1
1
⁄
2
" press 5
1
⁄
4
"
551 069A* 2" press 5
1
⁄
2
"
5