Fulton Vertical Electric (FT-N) Thermal Fluid (hot oil) Heater - Manual (Page 35)

Fulton Thermal Corp.*Electric Thermal Fluid Heaters Manual* Version 2010-0423
Page 35
Recommended Loads for Flexitallic Spiral Wound Class 300# Gaskets
SAE Grade 5 Bolts (typical) or Equal
Nominal Flange Size
Inches Number of Bolts
Diameter of Bolts
Inches
Preferred Torque
Required per Bolt
Ft-Lbs.
1/2 4 1/2 45
3/4 4 5/8
90
1 4 5/8 90
1 ¼ 4 5/8 90
1 ½ 4 3/4 150
2 8 5/8 90
2 ½ 8 3/4 150
3 8 3/4 150
3 ½ 8 3/4 150
4 8 3/4 150
5 8 3/4 150
6 12 3/4 150
8 12 7/8 240
10 16 1 368
Note
The system pump is not to be used to fill the system.
The system is usually filled from the lowest point, with the aid of a pump. On skid-
mounted units, a drain and fill connection is provided in the inlet piping to the
pump.
18. Heater Connections
a) The outlet of the pump should connect directly to the inlet of the heater via an isolating
valve and pump flexible connector.
b) The heater outlet should be piped directly to the system, via an isolating valve.
Drain and Fill Connection