CHEMICAL CONTAINMENT SOLUTIONS

 
Double Wall Containment Vessel

Double Walled

Vertical

Vertical Open Top

Biodiesel

Used Oil Double Walled Tanks

Small Doubled Walled Tanks for Medical Waste

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.


The first stage Engineering Report
To see the quality of engineering that is initiated as soon as we receive an inquiry ... and always within 24 hours
Click here

 
Sierra Sales Management - Philadelphia and Surrounding Areas
Main Office:
PO Box 321
Perkasie, PA 18944
Voice Phone: 215/258-5601
FAX: 215 / 258-5606

PE TANKS

 

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.

For More Information, Click on PE TANKS or CONTAINMENT TANK