SAFE-Tank® Double Wall Tank System
Secondary containment: SAFE-Tank® if concrete containment is not available.
Alternative: PPC secondary containment basin or other secondary containment suitable for chemical, of adequate size for use.
Hydrogen Peroxide
Accommodating a potentially explosive chemical
Available in a variety of concentrations, hydrogen peroxide is used as an oxidizing agent in textile, paper and fur processing. It is also used as a plasticizer, a polymerization catalyst and a water and sewage treatment chemical.
It poses a number of challenges when it comes to storage:
Concentrated solutions are highly toxic and are strong irritants.
Hydrogen peroxide is relatively unstable and decomposes into water and oxygen when exposed to the environment. The primary danger of this composition is fire and/or explosion.
For concentrations of hydrogen peroxide that are below 50%, high-density crosslinked polyethylene is a smart option.
The Poly Processing Hydrogen Peroxide System
If there is a chance that hydrogen peroxide has escaped from its storage system, evacuation is mandatory, since explosion could occur. It’s imperative that an environment be made as leak-free as possible. Poly Processing’s crosslinked polyethylene helps ensure that, by providing a high-strength storage option for hydrogen peroxide.
The SAFE-Tank® system offers tank-within-a-tank protection for secondary containment.
And if secondary containment is already provided for the tank, Poly Processing recommends the IMFO® tank system to provide complete drainage without entering the vessel shell, helping personnel avoid contact with this strong irritant.
For additional information on storing hydrogen peroxide, including recommended storage tanks and components, download our Hydrogen Peroxide Guide below. Or, download the Tank Designs & Specifications Guide to see all of our chemical storage products.
| Chemical | Resin Type | Specific Gravity Rating | Fitting Material | Gasket Material | Bolt Material |
|---|---|---|---|---|---|
| Hydrogen Peroxide | XLPE | 1.9 | PVC/CPVC | Viton® | 316SS |
Tank Specifications
Tank options include:
High-density crosslinked polyethylene (XLPE) construction for maximum strength
OR-1000™ antioxidant inner surface
Integrally Molded Flanged Outlet (IMFO®) for complete drainage
SAFE-Tank® design for "tank-within-a-tank" protection
Recommended System Components
IMFO® Fittings
IMFO® eliminates the need for confined space entry.
PTFE Expansion Joint
Plumbing: Requires flexible connections to allow for lateral and vertical tank contraction and expansion, and to reduce vibration stress.
SAFE-Surge® Manway Cover
Venting: SAFE-Surge® manway cover is recommended on pneumatically loaded systems to support tank longevity.
Technical Overview
NOTE: Use only flanged connections with hydrogen peroxide. Threaded fittings should be avoided!
IMFO® Vertical Flat Bottom of XLPE:
- 230–13,650 gallons
- 1.9 spg rating
Non -IMFO® alternatives:
SAFE-Tank® XLPE:
- 55–8,700 gallons
- 1.9 spg rating for primary tank
- Spg ratings for secondary tanks ≥ 3,000 gallons may be equal to or 1 less spg than primary tank.
- All other tank sizes must equal primary tank spg rating.
Standard Vertical Flat Bottom XLPE:
- 30–13,650 gallons
- 1.9 spg rating
Alternative secondary containment: PPC secondary containment basin or other secondary containment suitable for hydrogen peroxide, of adequate size for use
Plumbing: Requires use of flexible connections with fittings on lower third of sidewall. See Fittings & Accessories for flexible connections options.
•Expansion joints must meet the following minimum requirements:
◦Axial Compression ≥ .67˝
◦Axial Extension ≥ 0.67˝
◦Lateral Deflection ≥ 0.51
◦Angular Deflection ≥ 14°
◦Torsional Rotation ≥ 4°
Venting: See Venting Chart
Foundation: PPC IMFO® tank pad or smooth concrete, asphalt or steel foundation designed to accommodate IMFO®, SAFE-Tank® or vertical tank
Temperature: Product should not exceed 100°F at delivery or during storage to maintain ASTM D1998 design parameters.
Lid: A hinged, weighted manway to prevent over-pressurization due to rapid decomposition
Options: Restraint systems for wind and seismic, level gauges, ladders, heating pads, insulation, mixer mounts, OR-1000™ and engineering stamp