CHEMICAL CONTAINMENT SOLUTIONS
Double Walled
Vertical
Vertical Open Top
Biodiesel
Insulated Captors
Small Doubled Walled Tanks for Medical Waste
Used Oil Double Walled Tanks
Need a Used Oil Double walled containment tank?
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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.
Polyethylene Double Wall Tanks and Polyethylene Containment BasinsSafe double wall polyethylene bulk storage tanks. Polyethylene containment basins rotomolded poly or crosslinked poly for your vertical and upright tanks. Safe poly tank solutions for your chemical bulk storage and plastic IBCs. Including the worlds' largest all plastic IBCs; the 550 gal all plastic Megatainer IBCs.
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Sierra Sales recommends, and certain federal, state and local regulations require that precautions are taken to prevent hazardous chemicals from spilling or leaking into our soil, lakes, rivers, streams and aquifiers. |
Sierra Sales's poly containment basins and safe polyethylene double wall tank systems meet federal regulation 40CFR-264.193. Let Sierra Sales's experienced staff build safe poly double wall contained tank systems for your bulk storage requirements or plastic IBCs for your transportation needs. Sierra Sales's all plastic IBCs are priced to travel.
What are these plastic resins? Read about the poly tanks resins
Sierra Sales's smaller poly double wall safe tanks can be equipped with equipment platforms for pumps, mixers, fill and "top-unload" fittings. Put 'em on a hand truck and wheel the assembled safe poly double wall tank, with its own built in containment, anywhere in your plant.
Polyethylene open top tanks make great overflow basins and "day tanks". We have the size and resin required by your application; HDPE, HDLPE, HDXLPE, XLPE, and polypropylene.
Our polyethylene tanks are warranteed for three years against manufacturing defects. We'll replace or repair your poly tank, quickly when needed.
Check out our complete line of polyethylene cone bottom tanks, both open and closed tops. Sierra Sales has the most complete line of poly conical bottom tanks to 11,500 gallons in both crosslinked poly and high density linear polyethylene. HDPE, HDLPE, XLPE, HDXLPE and PP. If we can't rotationally mold one we can build one from fiberglass.
Poly horizontal tanks, horizontal leg, round, and elliptical polyethylene tanks are always in stock. Our poly horizontal leg tanks, up to 500 gallons, do not require restraining hoops.
Sierra Sales's complete line of polyethylene spill protection containment basins and solutions are manufactured in every possible configuration to help meet EPA and OSHA regulations. plastic IBCs containment, IBC stands, drum pallets, drum trays, and drum security containment vessels. Sierra Sales can supply "off-the-shelf" safe poly double wall tanks with poly containment basins with capacities of 100 gallons through 10,000 gallons.
We'll configure leak detection, level indicators, and all your poly tank fittings faster than any tank supplier in the industry. With numerous shipping points, we'll keep your freight cost down. Put your poly tanks on a trailer and don't forget the poly containment basins also.
| Part Number | Double Wall or Dual Containment Capacity |
Diameter |
Height |
| 1000200-- |
35 GALLON DCT |
19" |
36" |
| 1000300-- |
60 GALLON DCT |
25 3/4" |
40 3/4" |
| 5980000-- |
120 GALLON DCT |
33" |
49" |
| 1000400-- |
150 GALLON DCT |
33 3/4" |
60" |
| 1000500-- |
275 GALLON DCT |
47" |
63 1/4" |
| 1000600-- |
360 GALLON DCT |
53" |
60 1/4" |
| 1000800-- |
500 GALLON DCT |
53" |
78 1/2" |
| 5040-- |
550 GALLON |
76" |
65" |
| 5470-- |
1100 GALLON |
76" |
106" |
| 5490-- |
1550 GALLON |
76" |
138 1/2" |
| 5570-- |
2000 GALLON |
102" |
102 1/4" |
| 5580-- |
2500 GALLON |
102" |
123 3/4" |
| 5590-- |
3000 GALLON |
102" |
143 1/4" |
| 5600-- |
3500 GALLON |
102" |
158 3/4" |
| 5610-- |
4000 GALLON |
102" |
178 3/4" |
| 5620-- |
4500 GALLON |
102" |
198 3/4" |
| 5630-- |
5000 GALLON |
102" |
217 1/4" |
| 5660-- |
5500 GALLON |
120" |
173" |
| 5670-- |
6500 GALLON |
120" |
200" |
| 10064-- |
8700 GALLON |
142" |
200" |
| 10066-- |
10000 GALLON |
142" |
226" |
All Sierra Sales specific gravity ratings meet or exceed ASTM D-1998-96. Consult your SIERRA SALES representatives on material construction recommendations for your company's particular application
Tank material
options: High-density linear polyethylene (HDPE) or cross-linked, high-density polyethylene (XLPE)
Tanks available in 1.5 and 1.9 Specific Gravity in HDLPE and XLPE materials.
100-2500 Gallon Systems have a standard secondary outer containment manufactured from HDLPE, Natural, 1.9 specific
gravity.
Mega Captors
- 8,700 & 10,000 Gallon Double Wall Tanks
- Tank-in-a-tank design provides TOTAL containment protection in one space -saving unit.
- Double wall construction is completely enclosed so that external matter such as rainwater, snow and debris is prevented from collecting in the outer containment tank making it ideal for outdoor chemical storage.
- System consists of a primary tank with a secondary outer containment tank with a capacity of 115-120% of inner tank's capacity, exceeding EPA standards.
- Tanks are designed with wall thickness equal to or greater than ASTM D 1998 standards.
- Shipped fully-assembled to reduce field assembly costs
Fill out our Request A Rapid Response Quote You cannot get a faster quotation in the poly tank industry.
Download Double Wall Tank Capacities PDF (148K)
Download Our Specification PDF
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DOUBLE-WALL TANKS |
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Sierra Sales's revolutionary Double Containment System is designed to alleviate the ever-changing environmental and
safety concerns regarding bulk chemical storage and containment for the 21st century. Sierra Sales's unique tank-in-a-tank design enables users and specifiers to incorporate advanced performance and safety features on a bulk handling system, which provides total containment protection. Sierra Sales's double-wall construction is complete enclosed so that external matter, such as dust, rain and snow is prevented from collecting in the outer containment tank. Besides delivering unparalleled performance benefits, Sierra Sales's Doublewall Systems also contribute to your company's bottom line by significantly reducing installation and procurement cost. Most assemblies can be shipped fully assembled on either a standard or wide load flatbed trailer, which reduces comparable costs by an average of 35 percent. |
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DOUBLE-WALL TANKS - SMALL CAPACITY TANKS |
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“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!
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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 perffect tank for your needs. |
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! ”



revolutionary Double Containment System is designed to alleviate the ever-changing environmental and
safety concerns regarding bulk chemical storage and containment for the 21st century.

Sierra
Sales's smaller dual containment tanks provide added safety and environmental protection in more confined or remote
storage locations. The advance double-wall tank design is enclosed to prohibit freign matter from entering the
secondary contrainment tank and a unique octogonal shape provides optimal spacing and sealing surface for the industry's
most reliable transition fitting.