TOP MOUNTED EXPANSION TANK -
The tank will be designed to mount on top of the system when remote mounting is undesirable. (A1) Double drop leg piping allows full process flow through the expansion tank to remove air and low boilers during startup.
LOW or HIGH LEVEL FLUID ALARM -
A float type level switch is mounted in the expansion tank. The fluid alarm will automatically shut the system down and turn an alarm light “ON” if the expansion tank fluid drops below (low) or rises above (high) the desired level.
NITROGEN BLANKET -
An inert gas blanket on the expansion tank provides NPSH for the pump, limits oxidation of the heat tranfer fluid and prevents fluid phase change. This is standard on the SL750 Series.
LOW or HIGH PRESSURE ALARM -
A pressure switch will automatically shut the system down and turns an alarm light “ON” if the system pressure is outside the desired range. (not shown)
HEAT TRANSFER FLUID LOW FLOW ALARM -
A differential pressure switch across an orifice plate flow element automatically shuts down the heater and turns an alarm light “ON” if the heat transfer fluid flow drops below the alarm limit.
HAZARDOUS AREA DESIGNS -
Units are available using a cast NEMA-7 (F1) enclosure or with an air purge for (F2) Class I, Division 1 or 2 areas.
SIDE ENCLOSURES -
Removable sheet metal panels are available.
ASME STAMP -
The heating chamber and expansion tank can be stamped in accordance with the ASME Boiler and Pressure Vessel Code
PUMP SELECTION -
Special pumps are available, including choice of brand and pump type.
Cooling is available as an option on SL systems using shell and tube heat exchanger and an on/off three way diverting valve. This design can be modified for proportional cooling if required.
CUSTOM DESIGNS -
The SL Series can be custom designed for your special application.
MODEL PFS-1 PORTABLE PUMPING AND FILTERING OIL SYSTEM -
This is a compact portable unit and is equipped with disposable elements to remove contaminants and water from oil. This unit is great for filling and draining heat transfer systems. (Maximum fluid temperature is 200°F.) Request Bulletin SO-1.
HEAT TRANSFER FLUIDS
Heat Exchange And Transfer, Inc. is a distributor for most heat transfer fluid manufacturers.
STARTUP SUPERVISION -
This service is optional on the SL550, SL600 and SL650 systems and is privided with the SL750 system. Request Service Sheet GSP for policy and rates.