CHEMICAL CONTAINMENT SOLUTIONS - ACID TANKS

Double Walled
Vertical
Vertical Open Top
Biodiesel
Used Oil Double Walled Tanks
Double Wall Containment Vessels must be 110% - Ours are 115%
Generally, local codes
mandate 110% containment. Our double wall tank series is designed for
integral secondary vessel to contain 115% of the primary tank capacity
Disclaimer: When storing any chemicals,
all local codes and authorities having jurisdiction should be complied
with.
THE SULFURIC ACID SOLUTION:
Use the Best Material for the Job IN SINGLE & DOUBLE WALL TANKS - HDLPE or XLPE available
SHIPPING FROM FIVE [5] LOCATIONS IN THE USA to assure freight and transport costs are held to a minimum.
Please tell us whether you're processing/storing; aluminum sulfate, ammonium sulfate, calcium chloride, ethylene glycol, ferric chloride, ferric sulfate, ferrous sulfate, hydrochloric acid, hydrofluoric acid, hydrofluosilicic acid, hydrogen peroxide, magnesium chloride, phosphoric acid, polymers, potassium hydroxide, or just plain water and we'll design the vessel(s) you require.
Engineers' Recommendation |
The High Density linear resin that Sierra uses provides:
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Sulfuric Acid to 98% Concentration
HDLPE resin # 880046, natural in color, 1.9 specific gravity, 600 psi, meets ASTM standards and is warranted for a FULL 3 YEAR WARRANTY for storage at ambient temperatures.
Specify the correct material,one that you can depend on, a material that has been proven the BEST overall for the storage of Sulfuric Acid
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Unexposed FRP |
HDLPE #880046 |
XLPE exposed |
XLPE x Linear Liner |
Sierra's HDLPE 1.9 S.G. resin #880046 is a "true" high-density linear resin. Unlike other manufacturers who try to achieve the same results using a laminated LOW density linear liner in an XLPE tank. Sierra uses the superior HDLPE for the whole vessel; providing a much higher tensile strength and improved chemical resistance. | Ask the manufacturer of an XLPE tank lined with linear polyethylene what happens when they install (drill and dress) sidewall fittings through the tank wall and liner. Does the liner continue to be 100% laminated to the inside tank wall, even at the edges. | |
Additional advantages over lined tanks: No potential problems of total coverage of the liner material over the XLPE material during processing and, the delamination of the liner because of the constant filling and emptying processes associated with storage tanks in general. |
IF, as ASTM standards allow, the tank flexes within the allowable guidelines, will the laminated liner flex and contract as one with the tank wall throughout years of service. Using HDLPE, Sierra does not have liner issues, as we offer the superior 1.9 S.G. HDLPE #880046 resin for the entire tank in (up to) 98% sulfuric service. |
The Sulfuric Acid Solution
The Bleach Sheet
Chemical Resistance Recommendation Chart
SHIPPING FROM FIVE [5] LOCATIONS IN THE USA
As Manufactured by Snyder Industries, Inc. Lincoln, NE USA
![]() “We answer our phones, we return phone calls, faxes, and emails, and we are the fastest trained responders in the industry! Try us, compare us, dare us, to deliver when the traditional tank suppliers take your orders and put them on the PILE!
” |
![]() When deciding on choosing a particular industrial polyethylene (PE or poly) processing TANK there are specific and general issues that must be identified to define the actual tank, the configuration of the tank and fittings, and let us not forget the cost. Cost will include the tank, the fittings and factory installation, and DELIVERY. Bulk poly storage tanks are large, and transporting these vessels can be very expensive. Deciding on the proper safe poly processing tank is dependent on the information given to the manufacturer. As always, the more accurately the issues are identified and addressed at the beginning of the process, will assure the proper HDLPE (or XLPE) safe tank will be installed, and at a lesser cost, in time and dollars, and longer life of the poly tank to the end-user. We will help you chose the perfect tank for your needs. |
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All of our tanks have been
designed to the newest standards, and the only standard that applies to
polyethylene tanks, ASTM D1998-06. However there are certain limitations
and caveats which we can discuss with the customer to assure the proper
vessel is designed and supplied.. Consult your SIERRA SALES representatives on material construction recommendations for your company's particular application
We offer both high density linear polyethylene (HDLPE) and high density
cross linked polyethylene (HDXLPE) tank resins to properly and correctly
provide the storage and processing vessels that offer best in class
performance, and at the most economical cost. We have five (5) different
regionally located manufacturing plants, so we always attempt to assure
freight and transport costs are held to a minimum. Upon receiving your inquiry, we immediately go to work defining
your project's specific tank requirements. Whether you're processing sulfuric acid, hydrochloric acid, sodium hypochlorite
or just water, we define the entire vessel assembly in detail by line item. Now that we have completed study at
Snyder Industries, Inc. Tank University, we are more able (and quicker) to choose the proper tank from any of
our five strategically located plants, and fully customize the vessel for your project. From basic polyethylene
bulk tank, to an engineered industrial masterpiece polyethylene vessel. |
Rotationally Molded Polyethylene Tanks Offer These Advantages
Difference in resin. The advantages our HDLPE resin has over other rotomolded
linear resins in tank applications Over XLPE
1. Over Linear, Medium and Low Density Polyethylene:
superior impact and stress-crack resistance
- Improved weatherability
- Broader chemical resistance
- Lower notch sensitivity
2. Crosslink versus Linear:
"The most important advantage that crosslinkable polyethylene (XLPE) tanks have over linear polyethylene (LLDPE)
tanks is that XLPE has a much higher molecular weight than LLDPE. In general, as the molecular weight of polyethylene
increases, the environmental stress cracking resistance (ESCR), part impact strength, elongation, weathering, toughness,
and tensile at elevated temperatures are improved."
This in fact is a true statement; however Snyder is using a TRUE HDLPE and not a LLDPE. In fact, during the molding
cycle the density of resins changes and testing has shown us that we end up with a higher density with our HDLPE
than with the CL200 XLPE.
We feel very confident that our studies and case histories can help us to determine the best resin for the application.
Sii has always taken pride in our ability to get the full development of the physical properties of the resins
which translate into chemical resistance and tank life.
Crosslinked vs. linear Advantages:
The most important advantage that crosslinkable polyethylene (XLPE) tanks have over linear polyethylene (LLDPE)
tanks is that XLPE has a much higher molecular weight than LLDPE. IN GENERAL, as the molecular weight of polyethylene
increases, the environmental stress cracking resistance (ESCR), part impact strength, elongation, weathering, toughness,
and tensile at elevated temperatures are improved.
Wall thickness is not the only factor relevant to determining the strength of the tank. Proper material cure is
more important than wall thickness in determining tank strength. Material cure is highly dependent upon the time
of exposure to heat conducting through the tooling and the plastic material. Excessive exposure to high temperature
will degrade the plastic material and cause a weak part. The ideal cure cycle is to reach the proper curing temperature
as fast as possible, maintain that temperature for the correct period of time, and to cool the part and tooling
at the proper rate of part temperature decrease. The superior Sii manufacturing process and oven capacity makes
it possible to reach the proper cure temperature quickly and avoid the material degradation caused by slow oven
temperature rise. Therefore, it is improper manufacturing technique to compensate for poor material cure with excessively
thick tank walls.
“We answer our phones, we return phone calls, faxes, and emails, and we are the fastest trained responders in the industry! Try us, compare us, dare us, to deliver when the traditional tank suppliers take your orders and put them on the PILE! ”