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ECONOSEP
Flow rates from 1 to 250+ GPM
Excellent choice for low TSS applications
Compact and cost-effective
304 stainless steel construction (standard)
ECONOSEP
Flow rates from 1 to 250+ GPM
Excellent choice for low TSS applications
Compact and cost-effective
304 stainless steel construction (standard)
ECONOSEP
Flow rates from 1 to 250+ GPM
Excellent choice for low TSS applications
Compact and cost-effective
304 stainless steel construction (standard)
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The HydroFloTech EconoSep™ (ES) Series stainless steel oil water separator is our econo version coalescing type separator designed for use in a wide range of applications. Our EconoSep series separators are configured to meet the low cost or light duty installation requirements but can optionally also include items such as: sludge hopper, integral oil reservoir, or vapor tight lid assemblies.

The EconoSep oil water separator can be fitted with various sizes of the proprietary DynaPac™ cross corrugated coalescing media. The internal DynaPac™ cross corrugated coalescing media (available in PVC, polypropylene, and stainless steel) can be flushed with water and reused for years of efficient, trouble free use.

For applications involving settling solids, we also offer an EconoSep “Hopper” configuration. This optional sludge hopper captures any heavy settling solids prior to entering the separation chamber.

One of the key design advantages of EconoSep is that the oil recovered from the separator will typically have a residual water content of less than 3%.

EconoSep

Standard Features

  • 304 stainless steel tank
  • Proprietary DynaPacTM hi-density PVC coalescing media
  • Influent dispersion baffle
  • Oil retention baffle specifically designed to enhance the performance of the DynaPacTM media
  • Adjustable effluent weir system
  • Removable lid assembly
  • Seamlessly integrates with other HydroFloTech wastewater products
EconoSep
20-3683-RENDER-01
20-3700-RENDER-01
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Available Options

  • Tank materials: 304 stainless steel (standard), 316L stainless steel, A-36 carbon steel
  • Pump packages (automatic, lift station): Influent, effluent, sludge (sludge option is limited to EconoSep “Hopper” ESH models)
  • Sludge treatment packages (for EconoSep “Hopper” ESH models only): automatic sludge pump, sludge tank, dewatering systems
  • Effluent monitoring and sampling
  • Influent equalization
  • Relocation of pipe fittings for easier installation
  • Custom Oil Storage Reservoir and Sight-Glass Assemblies
Available Options– EconoSep Oil Water
20-3683-EFFLUENT-PUMP-RENDER-02
20-3683-INFLUENT-PUMP-RENDER-02
20-3683-OIL-PUMP-RENDER-02
20-3700-RENDER-02
20-3700-RENDER-03
20-3700-RENDER-04
TORK-RENDER-02
TORK-RENDER-03

There are many considerations to be taken into account when designing an enhanced gravity oil water separator. The following needs to be taken into account as a minimum:

  1. Inlet flow distribution
  2. Length to height to width ratios (for proper overall flow distribution)
  3. Cross sectional velocities (actual, not nominal)
  4. Laminar flow conditions
  5. DynaPac™ Cross Corrugated coalescing media or parallel plate media “Reynolds” calculations (for quiescent flow distribution)
  6. Effluent flow distribution
  7. Total projected surface area

These basic design considerations all contribute to the complete utilization of the separation media. If followed propertly, the results will be consistent, equal flow distribution through the separation chamber and the media pack. These are the earmarks of a thoughtful, wholly engineered, fully developed oil/water separator design.

The separation cell is designed using elements of American Petroleum Institute’s publication 421 Feb. 1990 “Design of Oil-Water Separators” to ensure the best possible use of particle rise rate performance. The separation cell is a rectangular flat bottom tank manufactured from 304 stainless steel with an effluent surface baffle, 304 stainless steel full width adjustable overflow weir, effluent collection chamber with flanged outlet nozzle and recycle suction port, and angled float beaching plate.

EconoSep Hopper - How it Works

  1. Influent Diffusion Chamber
    The flow enters the separator submerged, through an influent dispersion baffle. Dispersion across the depth and width of the DynaPac™ is to be achieved through the use of a non-clog diffuser. Heavy solids that fall out of suspension here are be channeled to the sludge collection chamber (for EconoSep “Hopper” ESH models only).
  2. Separation Chamber
    The Separation Chamber is designed to fit the exact amount of DynaPac™ cross corrugated coalescing media, sized for specific applications. Adequate space is to be left before and after the chamber to prevent short circuiting through the pack. DynaPacTM coalescing media is available in 0.5”, 0.75” and 1.25” sizes all in PVC, H-PVC, Polypropylene or 304 stainless steel. Depending on the correct sizing of the unit, this media (sized in cubic feet) provides the correct surface area (in square feet) for ideal separation. HydroFloTech oil water separator sizing sheets are a great resource to determine the size of media required by application (hyperlink).
  3. Sludge Collection Chamber (for EconoSep “Hopper” ESH units)
    The sludge collection chamber is located directly beneath the coalescing media pack and provide ample storage capacity for the settled sludge.
  4. Oil Reservoir
    The oil discharge port is located adjacent to the separation chamber. As the oil floats and rises to the top of the DynaPacTM media pack in the separation chamber, the oil retention baffle in the oil reservoir captures this separated oil.
  5. Effluent Chamber
    The aqueous phase leaving the DynaPac™ shall pass under the oil reservior and up over the adjustable 304 stainless steel effluent weir, which shall maintain the liquid level throughout the separator.
  6. Removable Lids
    The entire separator also includes a 304 stainless steel lid with handles for easy access.
  7. Coalescing Media
    The DynaPacTM coalescing media pack shall be fabricated of oleophilic cross corrugated coalescing media manufactured by HydroFloTech. Media is available in PVC, H-PVC, Polypropelene and 304 stainless steel.
EconoSep™ Oil Water Separator – Model Specifications
MODEL # FLOW RATE (GPM) UNIT DIMENSIONS CAPACITY (US Gallons) OPERATING WEIGHT (lbs.)
Length Width Height Overall Unit Oil Reservoir Effluent Chamber
(L) (W) (H)
ES-01 0 – 5 43” 15” 19” 26 2 5 337
ES-02 10 – 1 43” 27” 19” 51 4 10 601
ES-04 20 – 5 55” 27” 19” 69 4 10 769
ES-08 9 – 40 57” 27” 31” 143 9 25 1,531
ES-12 18 – 50 57” 39” 31” 214 14 38 2,226
ES-16 26 – 70 57” 51” 31” 286 19 51 2,916
ES-20 35 – 90 57” 63” 31” 359 24 64 3,621
ES-24 40 – 100 59” 51” 43” 442 28 92 4,440
ES-30 45 – 125 59” 63” 43” 553 36 115 5,503
ES-36 50 – 150 71” 51” 43” 547 28 92 5,399
EconoSep™ “Hopper” Oil Water Separator – Model Specifications
MODEL # FLOW RATE (GPM) UNIT DIMENSIONS CAPACITY (US Gallons) OPERATING WEIGHT (lbs.)
Length Width Height Unit Oil Reservoir Effluent Chamber
(L) (W) (H)
ESH-01 0 – 5 43” 15″ 24″ 28 2 5 360
ESH-02 10 – 1 43” 27″ 24″ 56 4 10 655
ESH-04 20 – 5 55” 27″ 29″ 87 4 10 955
ESH-08 9 – 40 57” 27″ 41″ 161 9 25 1,713
ESH-12 18 – 50 57” 39″ 41″ 242 14 38 2,492
ESH-16 26 – 70 57” 51″ 41″ 323 19 51 3,272
ESH-20 35 – 90 57” 63″ 41″ 405 24 64 4,060
ESH-24 40 – 100 59” 51″ 53″ 479 28 92 4,828
ESH-30 45 – 125 59” 63″ 53″ 599 36 115 5,976
ESH-36 50 – 150 71” 51″ 59″ 626 28 92 6,158
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