QC Eco-Green heat Transfer Fluid
From Chemical.net

 

Storage and handling equipment should be installed to avoid possible cross-contamination with other materials. QC Eco-Green Heat Transfer Fluid  will react with many compounds, including acids, isocyanates, chlorine and oxidizing agents.

DRUMS
Acceptable drums may be polyethylene or epoxy-phenolic lined, but due to the variety available, contact Chemical.net for assistance in identifying acceptable drums.
 

BULK STORAGE

Bulk storage and loading equipment should be designed to allow for periodic emptying and cleaning. New equipment should be hydrostatically tested prior to use.
To ensure product quality, it is recommended that only dedicated equipment be used to store QC Eco-Green. Bulk storage and loading areas should have easy access for tank trucks and/or railcars and maintenance equipment.

Bulk storage tanks should use nitrogen padding or air dryers to prevent moisture accumulation. QC Eco-Green Heat Transfer Fluid is very hygroscopic. Bulk storage facilities may need provisions for heating of product if located in cold regions. Care must be used when heating QC Eco-Green Heat Transfer Fluid to avoid heat degradation of the product, as temperatures above 54°C (130°F) can cause accelerated degradation.

SUPERCOOLING
QC Eco-Green Heat Transfer Fluid has the characteristic of supercooling, which means that it can remain in a liquid state even below its reported freezing point. However, to avoid unexpected crystallization, QC Eco-Green Heat Transfer Fluid should be stored above 17°C (62.6°F).

MATERIALS OF CONSTRUCTION
Stainless steel is the recommended material of construction for QC Eco-Green Heat Transfer Fluid storage tanks. Plastic and fiberglass tanks as well as lined tanks can be used for QC Eco-Green Heat Transfer Fluid storage. All plastic material and tank linings being considered for use with QC Eco-Green Heat Transfer Fluid should be checked to assure compatibility with the product to avoid any adverse effects on quality.

DESIGN AND FABRICATION
 A welded tank designed in accordance with UL-142 (“atmospheric pressure” vertical and horizontal tanks), or API 650 (vertical
“atmospheric” tanks) is recommended for QC Eco-Green Heat Transfer Fluid storage.

GENERAL STORAGE
Tanks larger than 5,000 gallons in capacity should be equipped with a manway.
QC Eco-Green Heat Transfer Fluid storage tanks should be designed to eliminate significant product residue after draining in order to facilitate clearing and cleaning (i.e., incorporate a bottom drain). A self-cleaning white paint exterior is recommended on QC Eco-Green Heat Transfer Fluid tanks. This color of paint will minimize the internal temperature changes that occur during 24-hour cycles. The reduced expansion and contraction of the contents (breathing) will decrease the demand for nitrogen or dry air. A QC Eco-Green Heat Transfer Fluid tank should be cleaned and dried prior to being used for the first time.

Tank Installation
QC Eco-Green Heat Transfer Fluid tanks should be supported on a firm foundation. The recommended foundation is a reinforced concrete pad or ring. Soil testing is advisable to determine the proper foundation needed to safely support the gross weight of the completely filled tank. Guy wires or tie-downs should be considered if the tank will be located in an open area. An empty tank is not very stable in strong winds. If the tank will be located in an area prone to occasional flooding, it should be securely anchored to prevent it from floating off the base. An empty tank will float. Bulk storage tanks should be electrically grounded. A bulk storage tank should be hydrostatically tested prior to its first use. This procedure will help to identify leaks or other problems before the tank is filled with product.

Tanks should be located to allow ample space to load and unload material, perform maintenance on the tank and to perform maintenance on adjacent tanks and equipment in the area. Spill containment is strongly recommended if the tank will be located in an area where a spill could find its way into a river, lake or aboveground/underground body of water.

ACCESSORIES
Level Indicator
Tanks should be equipped with a means of measuring the level inside the tank. Electronic or pneumatic level transmitters and internal float-type devices are recommended. External liquid column gauges constructed of polyethylene can be used if they are protected to prevent accidental breakage. The bottom should be fitted with a shut-off valve to be open only when reading the level. Glass devices are not recommended.

Pressure-Vacuum Relief Valves located on top of the tank, this device is used to prevent damage to storage tanks due to pressure changes caused by filling or draining and by thermal expansion or contraction of the contents. This safety device is recommended for all closed bulk storage tanks. Nitrogen Pad-Depad System This system provides a dry nitrogen atmosphere in the vapor space of the tank. Nitrogen padding is recommended for QC Eco-Green Heat Transfer Fluid storage tanks to prevent oxidation.

Air Dryer System
This system can be used in place of a nitrogen pad-depad system to maintain a moisture-free environment in the vapor space of the tank. The system utilizes a gel desiccant dryer such as silica gel on the tank vent to dry air going into the tank.

Tank Heater
If the QC Eco-Green Heat Transfer Fluid tank will be located in a climate that routinely sees temperatures below 17°C (62.6°F), a tank heater will be required. For easier handling, QC Eco-Green Heat Transfer Fluid can be kept at 32 to 49 °C (90 to 120°F). Tank suction heaters or recirculating heat exchanges are recommended. A tank heater must be controlled to prevent temperatures above 54°C (130°F). This can be done by using hot water or desuperheated steam. The higher temperatures for a prolonged period of time will cause degradation of the product.

PIPE DESIGN CRITERIA
Piping
Piping should be designed to minimize the number of potential leak points (flanges, screwed connections, couplings, etc.). Piping systems should be installed to drain to low points and have valves to allow easy clearing of the pipe for maintenance. To ensure product quality, never mix  with other products.
All piping should be dedicated for QC Eco-Green Heat Transfer Fluid only. Drop filter elements can be constructed of cotton, polyester, polypropylene, nylon or stainless steel screen. Element pore sizes of 10 to 75 microns are recommended.

Filters
To ensure clean product, filters are desirable. Filters should be large enough to handle the desired product flow with a low pressure drop. Filter elements can be constructed of cotton, polyester, polypropylene, nylon or stainless steel screen. Element pore sizes of 10 to 75 microns are recommended.
 

Hoses
Hoses used for loading and unloading of QC Eco-Green Heat Transfer Fluid should be made of reinforced elastomer with cross-linked polyethylene liner. Flexible corrugated stainless steel may also be used. Hoses should be dedicated to QC Eco-Green Heat Transfer Fluid service to avoid product contamination, and should be rated to withstand the operating pressure of the pump. Hoses should be capped at both ends when not in use to keep dirt and moisture from entering the hose and causing product contamination.

Gaskets
Gaskets made with Teflon(1) fluoropolymers and Viton(1) fluoroelastomers are recommended for use with QC Eco-Green Heat Transfer Fluid.

Valves
Gate, ball, plug and butterfly valves can be used in QC Eco-Green Heat Transfer Fluid service. The valves should be constructed of stainless steel to ensure product quality and should be designed so that no internal lubrication is necessary. Check valves are not recommended for use with QC Eco-Green Heat Transfer Fluid due to the viscosity of the product.

Stainless steel schedule 10 is the recommended material of construction to ensure product quality. Welded seamless pipe is also recommended. Screwed piping can be used, but pipe “dopes” should be avoided to prevent product contamination. Valves should be placed to allow easy access and operation. If the piping will be located where ambient temperatures can fall below 17°C (62.6°F), then tracing and
insulation should be used. QC Eco-Green Heat Transfer Fluid flows well at temperatures of 32 to 49°C (90 to 120°F). Any pipe heating system should have an upper limit to prevent excess temperatures above 54°C (130°F). Higher temperatures over prolonged periods can cause degradation of QC Eco-Green Heat Transfer Fluid.

Pumps
For normal operations, a centrifugal pump is recommended for use with QC Eco-Green Heat Transfer Fluid. If the QC Eco-Green Heat Transfer Fluid will be stored at lower temperatures, it will be more viscous and a positive displacement pump such as a gear pump is recommended. The material of construction should be stainless steel.
 

 Flowmeters
 If it is desirable to measure the flow of QC Eco-Green Heat Transfer Fluid in the piping system, a flowmeter is recommended.
Common types of meters that work well with QC Eco-Green Heat Transfer Fluid include positive-displacement (gear) meters, mass-flow meters and orifice meters. Sight glasses are not recommended.