Double Containment Piping for Direct Lithium Extraction (DLE)
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Yes. LibertyCES has documented Double Containment Piping in Direct Lithium Extraction (DLE) applications, including LiquidWatch II electronic leak detection. The right model depends on the fluid, concentration, temperature, flow and duty cycle, so send James your process data for a free spec review before final selection.
Notes from the vendor documentation
Duo-Pro is Asahi's own recommended system for DLE brine/acid handling per the ASAHI FOR DLE source; named chemistries are sodium hypochlorite, chlorine dioxide and acids (lithium-rich brine eluents). The 30-day EPA containment figure is the quotable design basis on a DLE permitting conversation.
Products cited in this application
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| Duo-Pro size/pressure range | 1x3 through 16x20, 150 psi + drainage ratings | Asahi/America — General Catalog (Valves, Actuators, Piping Systems, Welding Equipment) |
| Outer pipe containment standard | Designed to meet the EPA standard of at least 30 days of containment | Asahi/America — General Catalog (Valves, Actuators, Piping Systems, Welding Equipment) |
| Leak detection cable install threshold | PAL-AT cable-based leak detection installable on 2x6 and larger | Asahi/America — General Catalog (Valves, Actuators, Piping Systems, Welding Equipment) |
| Recommended DLE valve/actuator pairing | Type-14 Diaphragm Valve + Series 19 MAV MultiPack electric actuator, 75% duty cycle, NEMA 4X enclosure | Asahi/America — General Catalog (Valves, Actuators, Piping Systems, Welding Equipment) |
| Duo-Pro materials | PP, PVDF, or ECTFE | Asahi/America — General Catalog (Valves, Actuators, Piping Systems, Welding Equipment) |
Type-14's top-entry design isolates the bonnet from the fluid, so only the body and diaphragm (available in PVDF/PTFE/EPDM) ever touch the brine — the failure mode it's built to avoid is abrasive-slurry or corrosive-brine intrusion into the actuator side of the valve.
A DLE brine line runs acid and abrasive slurry continuously for the life of the plant — Duo-Pro's 30-day EPA containment design basis on the outer pipe is a real, vendor-published number worth quoting in a permitting conversation, not a rounded-up estimate.
Every claim on this page traces to real, vendor-published documentation on file with LibertyCES. Confirm current specifications with the manufacturer before final specification.
Related Guides
FAQ
How is Double Containment Piping used in Direct Lithium Extraction (DLE)?
Duo-Pro is Asahi's own recommended system for DLE brine/acid handling per the ASAHI FOR DLE source; named chemistries are sodium hypochlorite, chlorine dioxide and acids (lithium-rich brine eluents). The 30-day EPA containment figure is the quotable design basis on a DLE permitting conversation.
Which Double Containment Piping models are specified for Direct Lithium Extraction (DLE)?
Documented models include Asahi/America Duo-Pro double containment in PP, PVDF or ECTFE, Asahi/America PAL-AT cable-based leak detection, LiquidWatch II electronic leak detection. Confirm current specifications with the manufacturer before final selection.
What does LibertyCES need to size Double Containment Piping for a Direct Lithium Extraction (DLE) application?
The fluid and its concentration, operating temperature, flow or volume, pressure and suction conditions, duty cycle, and the existing equipment it replaces or connects to. James reviews it for free.
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Send James your spec
Fluid, concentration, temperature, flow or volume, and where it goes. James replies with a real answer, not a catalog page.
Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated