Product Overview
E
F
3
½
”
A
1
¼
”
3
/
8
”
B B
BB
C
A
D
3
½
”
1
½
”2
¾
”
18”
flex hose
F
Check valve
Lay length
Lay length
30
50
70
90
110
130
150
170
190
210
ºF
E
F
3
1
/
2
”
A
1
1
/
4
”
3
/
8
”
B B
BB
C
A
D
3
1
/
2
”
1
1
/
2
”2
3
/
4
”
18”
flex hose
30
50
70
90
110
130
150
170
190
210
ºF
E
F
3
1
/
2
”
A
1
1
/
4
”
3
/
8
”
B B
BB
C
A
D
3
1
/
2
”
1
1
/
2
”2
3
/
4
”
18”
flex hose
Dimensions
A
C
A
D 3
1
/
2
”
B
MIX
COLD
A
HOT
Code Fitting code A B C D Wt. (lb.)
520051A*
NA20650**
3
⁄4" nptm 4" 5¼" 2¼" 2.8
NA20653**
3
⁄4" nptf 4¼" 5¾" 2¼" 2.8
NA20656**
3
⁄4" press 4" 5¾" 2
9
⁄16" 2.8
NA20657**
3
⁄4" PEX
barb
4¼" 6½" 2¾" 2.8
NA20659**
3
⁄4" sweat 4" 5¼" 2
3
⁄16" 2.8
Add 2¼ inch to dimension D and C for temperature gauge adapter on
mix outlet, code NA10358 (1" union thread with gauge).
*1" male union connection.
**3 required for all ports, weight includes fittings.
Lay length from Hot Inlet to Mix Outlet for ¾" press and sweat
connections: 3¾"
Code A B C D E F Wt. (lb.)
520500AX
3
⁄4" nptf
3
⁄4" nptm 5
9
⁄16" 2
1
⁄4" 5
5
⁄8" 2
1
⁄4" 2.4
520506AX
3
⁄4" nptf
3
⁄4" press 5
13
⁄16" 2
9
⁄16" 5
7
⁄8" 2
9
⁄16" 2.4
520509AX
3
⁄4" nptf
3
⁄4" swt 5
1
⁄2" 2
3
⁄16" 5
1
⁄2" 2
3
⁄16" 2.4
Lay length (hot inlet to mix oulet) for press: 3
3
⁄8"; for sweat: 3
3
⁄8".
Code A B C D E F Wt. (lb.)
520510A X
3
⁄4" nptf
3
⁄4" nptm 7
7
⁄8" 4
1
⁄4" 5
5
⁄8" 2
1
⁄4" 2.9
520516A X
3
⁄4" nptf
3
⁄4" press 8" 4
9
⁄16" 5
7
⁄8" 2
9
⁄16" 2.9
520519A X
3
⁄4" nptf
3
⁄4" swt 7
3
⁄4" 4
3
⁄16" 5
1
⁄2" 2
3
⁄16" 2.9
Lay length (hot inlet to mix oulet) for press: 5
9
⁄16"; for sweat: 5
9
⁄16".
No temperature gauge.
With temperature gauge.