TX Series Installation, Operation, and Maintenance Manual
Diversified Heat Transfer, Inc.
439 Main Road, Route 202
Towaco, New Jersey 07082
Page
10
of
33
Phone: 800-221-1522
Website: www.dhtnet.com
Flow Specifications
Model No.
Recommended
Flow Rate
Heat Exchanger Pressure
Drop (Ft. Hd.)
Boiler Water
Connection Sizes
TX-40
10 GPM
7.1
1”
TX-50
10 GPM
7.3
1”
TX-80
14 GPM
5.0
1”
TX-110
14 GPM
6.5
1”
Friction Loss per 100 Feet of Tubing (psi)
Tubing Type
Flow Rate (gpm)
10 gpm
15 gpm
Type K
3.1 psi
6.5 psi
Type L
2.7 psi
5.7 psi
Type M
2.3 psi
4.7 psi
Friction Loss Allowance for Copper Fittings (feet of straight tubing)
Fitting
Wrought
Cast
90º Elbow
1
4
45º Elbow
1
2
Tee, Run
½
½
Tee, Branch
3
5
90º Bend
2
-
180º Bend
2
-
Gate Valve
-
1