Mercer International · Albany, NY · Est. 1984
Engineered for sustained removal efficiency. Built to outlast every system it replaces. Trusted by the operators who can't afford failure.
The Enterprise Challenge
And why "cheaper" systems cost more in the long run.
Corrugated plastic media clogs, crumbles, and caves. Solids accumulate, bind with oil, and form sludge that chokes performance.
Conventional coalescers require replacement internals — a business model built on your breakdowns. You pay for every cycle of failure.
Performance degrades over time. API 421 compliance is achieved at startup, then quietly lost — until a regulator shows up.
Maintenance shutdowns, cleanout labor, replacement media, and unplanned downtime erode margins year after year. The invoice is just the beginning.
BEFORE: "Good on Paper"
AFTER: "Fails in Service"
Oil + Solids + Time = Sludge™ — Even at low concentrations, solids accumulate, bind with oil, and plug conventional coalescers.
Core Capabilities
Every Mercer system is designed around your process, your flow, your water chemistry, and your compliance targets.
API 421 compliant, custom-built for your process flow and water chemistry.
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Steel, concrete, or plastic — engineered for your site conditions and space constraints.
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Drop-in Multi-Pack™ internals that restore performance without replacing tankage.
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Condition and complement our core technology with targeted filtration solutions.
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Proof-of-performance skids, lease-to-own, and temporary systems for operational flexibility.
Learn more →The Mercer Difference
Every performance claim backed by transparent, long-hand calculations — not marketing math. We show you the work.
Internals that never require replacement. No consumables. No recurring revenue model built on your breakdowns.
Designed to meet and sustain compliance over the full service life — not just pass a startup test and quietly drift.
3–5× longer maintenance intervals. Built to outlast every system it replaces. ROI that compounds for decades.
Industries We Serve
Oil and gas is our foundation. But the same engineering discipline solves separation challenges across every industry where failure is not an option.
Battling drilling muds, flowback waters, and de-salter reject. Preventing pipeline upsets and refinery oil sewage.
Containing transformer leaks and oily sumps. Managing turbine washdown and substation runoff before it hits permit limits.
Controlling fuel spills, yard runoff, and wash bay discharge. Keeping fleet grime and rail residue out of storm drains.
Taming tailings water, diesel sheen, and haul-road runoff. Clearing sediment-clogged drains before they shut down operations.
Fighting FOG overloads and protein-heavy washdown. Containing sanitizer waste and plant floor spills before they spread.
Stopping coolant carryover, machining oil, and wash effluent at the source. Keeping production floors clean and compliant.
Proof & Trust
Fortune 1000 operators choose Mercer because the math works. The uptime holds. The compliance lasts.
Measurable ROI
When New York City's Con Edison needed to modernize aging separation systems, they chose Mercer. Result: maintenance cut by 67% in under two years and full API 421 compliance restored. Different industries, same outcome — no surprises, no shutdowns, no compromises.
Read the Con Edison Case Study →A 400 GPM unit cut maintenance costs from $120K to $7K per year, saving over $725K across 25 years.
Customer Reviews
"Mercer's system has been running for three years without a single cleanout. The ROI math they showed us upfront wasn't optimistic — it was conservative."
"We evaluated five vendors. Only Mercer backed their API 421 claims with actual calculation packages. The others had brochures. Mercer had math."
"The retrofit paid for itself in under two years. We stopped buying replacement media, stopped scheduling cleanout shutdowns, and stopped worrying about our discharge permits."
Join 80+ Fortune 1000 operators who trust Mercer.
Request a Free Site AuditBuilt For Every Stakeholder
Whether you design, maintain, or justify the system, Mercer equips you to make the case.
See the microns. Backed by math, hydraulics, and a design that delivers under real operating conditions — not just spec-sheet theory.
See the OPEX. Lower total cost of ownership over 25+ years — not just a lower invoice at purchase. The math works at the procurement level.
See the uptime. Stable flow control, solids tolerance, and equipment that goes back online without drama. No midnight shutdown calls.
Knowledge Base
Engineered Integrity
For 40 years, Mercer has been trusted by industrial operators who value one thing above all else — truth in performance.
We don't take every project because we won't bend the math to win a bid. When you work with Mercer, you get an engineered solution that earns its place and keeps it for decades.
"We care more, and we own the outcome of every sale."
Get In Touch
Whether you're designing new or fighting constant cleanouts, Mercer helps you stop reacting and start performing.
✓ No obligation · No sales pitch
✓ We respond within 1 business day
✓ Free on-site evaluation
