NoAvarHava

Am I really part of the global problem?
Most compressed air users are unaware of exactly how much
condensate is produced by their system each year, and of the
devastating effect it can have on the environment. For example,
a small 2.83 m3/min (100 cfm) compressor / refrigeration dryer
package, installed and operating in a 25°C (77°F), 65% RH
ambient and operating in these conditions for 4000 hours can
produce up to 10,000 litres (2,640 US gallons) of condensate.
With one litre of oil able to cover as much as 3500m2 (4 acres)
of water surface, oil discharges do not have to be big to be
serious. The volume of oily condensate produced increases
significantly in warmer, more humid climates.
What can I do to help protect the environment?
Compliance with local environmental legislation and ISO 14001
forces the compressed air user to continuously dispose of large
volumes of oily condensate in a legal and responsible manner.
Traditionally, condensate would be stored on site and a specialist
waste disposal company would remove the condensate
periodically and treat it at their premises, at a significant cost.
As storage of untreated condensate requires its own containment
vessels, protective systems and procedures, many users are
opting to reduce costs by treating the problem at source with
an on-site oil / water separator.
domnick hunter ES2000 Series Oil / Water Separators are
installed as part of the compressed air system and reduce the
oil concentration in the discharged condensate to a permitted
level. This allows the larger volume of clean water, sometimes
up to 99.9% of the total condensate, to be discharged safely
into the foul sewer. The small amount of concentrated oil is
then disposed of legitimately and economically.

What level of oily condensate
can I legally discharge?
Legislation around the world varies significantly, and can even
be different between local governing bodies within a particular
country. It is the users responsibility to contact his governing
body and obtain the permitted discharge limit, however oil
in water limits of 25mg/L (25ppmw) or less are typical. To help
meet the various world wide requirements, domnick hunter
ES2000 Series Oil / Water separators can be selected to provide
an outlet quality of less than 25, 20, 10 or 5mg/L (ppmw) of oil in
water (Independently verified by testing bodies such as TUV).
How do I ensure compliance with my permitted
discharge limit?
The quality of water from an oil / water separator can be affected
by many different factors, including ambient temperature and
relative humidity at the installation, compressor and lubricant
used, system pressure and drainage method as well as the
inclusion of a refrigerant dryer in the system. Correct product
selection is critical to performance, therefore climatic and
system data specific to each installation is used to ensure
the correct ES2000 Series Oil / water Separator is selected.
Once installed, regular monitoring of the outlet water allows
replacement of the adsorption filter(s) to take place prior
to permitted limits being exceeded.
Where do I go from here?
Further help and information on Condensate Management
systems and specifically the ES2000 Series of Oil / Water
Separators can be obtained from your local domnick hunter
outlet (ask for Publication Reference 29). Further information
on ISO 14001 can be obtained from the International Standards
Organisation web site www.iso.ch.

ES2000 Series
Oil/Water Separators

Discharging oil contaminated condensate from compressed air systems is not only harmful to the environment, it is probably illegal.
Oil spillages from industry do not have to be big to be serious.
One litre of oil can cover 3500m 2 of water surface.
One gallon of oil can cover 4 acres of water surface

The Problem
Compressed air is an essential power source that is widely used throughout industry. This safe, powerful and reliable utility can be the most important part of your production process. However, your compressed air contains water, dirt, wear particles and degraded lubricating oil, which all mix together to form an unwanted condensate. This condensate, often acidic, rapidly wears tools and pneumatic machinery, blocks valves and orifices and corrodes piping, resulting in high maintenance costs and product spoilage which can bring your production process to an extremely expensive standstill!
Separation, filtration and drying products are employed to remove this problematic and costly condensate, however the oily mix discharged now creates other problems.
Oil can seriously affect the efficient operation of sewage purification, as well as killing plants and animals.
For this reason, very low oil in water discharge limits are permitted and rigid legislation exists in most countries to protect the environment against contamination.
International standards such as ISO14001 also require the compressed air user to comply with local environmental legislation and show use of protective systems and procedures.

The Solution
Efficient on-site disposal of compressed air condensate with the domnick hunter ES2000 oil/water separators. After the oily condensate has been efficiently removed from the compressed air system it cannot be discharged directly to the foul sewer without first having the oil content reduced to within legal disposal limits.
domnick hunter ES2000 Series Oil / Water Separators are a simple, economical and environmental solution.

ES2000 Series Oil / water separators are installed as part of the compressed air system and simply reduce the oil concentration in the collected condensate to a level permitted, for discharge. This allows the larger volume of clean water, up to 99.9% of the total condensate, to be discharged safely into the foul sewer and the relatively small amount of concentrated oil to be disposed of legitimately and economically.

Special Features

Single piece units – reduce overall footprint
Robust, corrosion resistant, polyethylene construction, includes ribbing for extra strength.
Large centrifugal inlet chamber provides effective venting of compressed air energy, whilst multiple inlet ports and four inlet chamber positions simplify installation
Large, easily cleaned primary settlement chamber for the accumulation and removal of dirt particles
Large main tank increases settlement time and
reduces oil carryover to carbon filter stage
Large internal galleries reduce risk of an internal
blockage and simplify maintenance
Oil absorbing pre-filter(s) protect carbon stage frombulk contamination
Large carbon stage for increased contact time,improving water quality and extending carbon life.
High specification carbon for improved service intervals
Adjustable oil outlet funnel for the efficient removal of separated oil
Sealed external oil container for easy oil disposal
Sample tap removes need to disconnect outlet piping when obtaining a test sample

Accessories

Additional oil containers for simple maintenance.
Flow splitter provides equal distribution of condensate on multiple oil/water separator installations.
Condensate manifold - multi ported device for connection to drain ports.

model		es2100/ti	es2150/ti	es2200/ti	es2300/ti	es2400/ti	es2500/ti	es2600/ti
inlet* connection		1 x 1/2" 1 x 1/4"	1 x 1/2" 1 x 1/4"	1 x 1/2" 1 x 1/4"	1 x 1/2" 3 x 1/4"	1 x 1/2" 3 x 1/4"	1 x 1/2" 3 x 1/4"	1 x 1/2" 3 x 1/4"
outlet hose connection(i/d)		19mm(3/4")	25mm (1")	19mm(3/4")	25mm (1")	25mm (1")	25mm (1")	25mm (1")
settlement tank capacity		n/a	60l	75l	125l	185l	355l	485l
settlement tank capacity		n/a	16 us g	20 us g	33 us g	49 us g	94 us g	128 us g
max.pressure		16 bar g (232 psi g)
min/max temperature	°c	5 to 35	5 to 35	5 to 35	5 to 35	5 to 35	5 to 35	5 to 35
min/max temperature	°f	41 to 95	41 to 95	41 to 95	41 to 95	41 to 95	41 to 95	41 to 95
material (re-cyclable)		polyethylene
weight	empty kg (lbs)	6 (13)	10 (22)	12 (26)	27 (59)	36 (79)	70 (154)	97 (214)
weight	full kg (lbs)	24.5 (54)	78.5 (172.7)	93.5 (206)	159 (350)	217 (477)	400 (880)	550 (1210)
dimensions mm (ins)	a	842 (33)	810 (32)	803 (32)	1195 (47)	1195 (47)	1535 (60)	1535 (60)
	b	550 (21.6)	350 (14)	350 (14)	650 (26)	650 (26)	860 (34)	860 (34)
	c	316 (12.4)	433 (17)	450 (18)	500 (20)	650 (26)	700 (28)	1000 (39)
	d	270 (10.6)	675 (26.6)	675 (27)	750 (30)	750 (30)	1090 (43)	1090 (43)

There are many factors which play a part in the selection of a static oil/water separator, with ambient conditions of the installation and oil type being the most important. Capacities shown in this literature assume installation in two of the worlds major climatic conditions. Should the oil/water separator be installed in conditions other than those shown, please contact your local domnick hunter outlet or approved distributor/agent for correct sizing.

ES2000 Series

Oil / Water Separators

What is ISO14001 ?

ISO14001 is the continuation of the ISO9001 quality standard, covering the environmental aspects of a companies operations.
Similar to the Quality Management System (QMS) required for ISO 9001, ISO14001 requires the use of an Environmental Management System (EMS)

What is ISO14001 ?

The Environmental Management System specifies the requirements for establishing such things as :

An environmental policy

Determining the environmental aspects & impact of products

Planning and implementation of environmental objectives (including measurable targets)

The monitoring of environmental systems

The reduction of waste energy.

Implications of ISO 14001 on the Compressed Air User

Condensate contaminates the compressed air system causing corrosion, equipment failure and product spoilage - It must be removed using filtration and drying methods
Removal from the compressed air system creates new problems
Oily condensate discharged into the environment kills plants, fish & animals.

Implications of ISO 14001 on the Compressed Air User

Rigid legislation exists in most countries to protect the environment against contamination.
Compressed air users must comply with environmental legislation and show use of protective systems and procedures as part of ISO14001
Most compressed air users are unaware of exactly how much condensate is produced by their system each year, and of the devastating effect it can have on the environment.

Implications of ISO 14001 on the Compressed Air User

For example, a small 2.83 m3/min (100 cfm) compressor / refrigeration dryer package, installed and operating in a 25°C (77°F), 65% RH ambient and operating in these conditions for 4000 hours can produce up to 10,000 litres (2,640 US gallons) of condensate.

With one litre of oil able to cover as much as 3500m2 (4 acres) of water surface, oil discharges do not have to be big to be serious.

The volume of oily condensate produced increases significantly in warmer, more humid climates.

Implications of ISO 14001 on the Compressed Air User

Compliance with local environmental legislation and ISO14001 forces the compressed air user to continuously dispose of large volumes of oily condensate in a legal and responsible manner.

The options available are :-

Discharge to the environment

Removal by specialist waste disposal company

Use of an on-site oil / water separator

CONDENSATE DISPOSAL Discharge To The Environment

Advantages
No cost

Disadvantages
            Hazardous to the environment
            Illegal
            Heavy fine if caught

CONDENSATE DISPOSAL Specialist Waste Disposal Company

Advantages
            Environmentally friendly
            Legal

Disadvantages
            Very costly Storage area / facilities required to make collection cost effective
            Storage of untreated condensate requires its own containment vessels, protective systems and procedures

CONDENSATE DISPOSAL Treatment On-site with an Oil / Water Separator

Advantages
        Return up to 99% of condensate
            back Into foul sewer as clean
            water
        Environmentally friendly
        Legal
        Rapid payback against collection
Disadvantages
        Static separation not as effective
            with certain oil / drain types

CONDENSATE DISPOSAL Cost of disposal Example

A small 2.83 m3/min (100 cfm) compressor / refrigeration dryer package, installed and operating in a 25°C (77°F), 65% RH ambient and operating in these conditions for 4000 hours can produce over 10,000 litres (2,640 US gallons) of condensate.
At an average of £0.10 per Litre for disposal, use of a specialist waste disposal company would cost in excess of £1,000 per year (excluding storage & transportation costs).
Disposal costs are similar all around the world.

CONDENSATE DISPOSAL Cost of disposal Example

As storage of untreated condensate requires its own containment vessels, protective systems and procedures, many users are opting to reduce costs by treating the problem at source with low cost on-site oil / water separators.
Static type units such as the domnick hunter ES2000 series are the most common an in our example, an ES2200 would pay for itself within 6 months.
Just how do they work ?

ES2000 Series Oil / Water Separators Correct Product Selection

Correct product selection is critical for the operation of any Oil / Water Separator, with both climatic conditions and oil type playing a major role in product selection.
Increased condensate flow through an oil / water separator reduces settlement time in main tank and contact time with carbon stage, resulting in poor outlet quality, reduced carbon bag life and a potential for overflow.

ES2000 Series Oil / Water Separators Correct Product Selection for Climatic Conditions

A 2.83 m3/min (100 cfm) compressor, installed and operating in a 25oC (77oF), 65% RH ambient, can with a discharge temperature of 35oC (95oF), produce up to 1.77 L/hr (0.5 US G/hr) of condensate at the compressor alone.

ES2000 Series Oil / Water Separators Correct Product Selection for Climatic Conditions

An identical compressor installed in ambient conditions of 35oC (95oF), 85% RH can with a discharge temperature of 45oC (113oF), produce up to 4.8 L/hr (1.3 US G/hr) of condensate at the compressor.

Example two produces 2.7 times more condensate than example one.

ES2000 Series Oil / Water Separators Correct Product Selection for Climatic Conditions

The addition of a refrigerant dryer to the system, further reduces the temperature and dewpoint and increases the condensate volume even further.
The result of a 2oC (36oF) dewpoint increases the total condensate volume from 1.77 L/hr (0.5 US G/hr) to 2.54 L/hr (0.7 US G/hr) in example one and from 4.8 L/hr (1.3 US G/hr) to 6.2 L/hr (1.64 US G/hr) in example two.

ES2000 Series Oil / Water Separators Correct Product Selection for Climatic Conditions

Each Oil / Water Separator model has a fixed volumetric flow rate of condensate.
As we have just seen, identical 2.83 m3/min (100 cfm) compressors can produce anywhere between 1.77 L/hr (0.5 US G/hr) and 6.2 L/hr (1.64 US G/hr) depending upon the ambient conditions in which they are installed.

All OIL / WATER SEPARATORS MUST BE SIZED CORRECTLY TO MATCH SYSTEM AND CLIMATIC CONDITIONS

ES2000 Series Oil / Water Separators
Correct Product Selection

Literature presents flow rates of all OWS models at two climatic conditions, for various oil types, with & without a refrigeration dryer.

Ambient Temp up to 25oC (77oF) Relative Humidity 65% Compressor Discharge Temp 35oC (95oF) Discharge Pressure 7 bar g (102 psi g)
Ambient Temp up to 35oC (95oF) Relative Humidity 85% Compressor Discharge Temp 45oC (113oF) Discharge Pressure 7 bar g (102 psi g)

If the oil type is not know perform the visual separation test or contact domnick hunter.

ES2000 Series Oil / Water Separators

Flow Rates at :-

Ambient Temp :
25oC (77oF)

RH : 65%

Compressor Discharge Temp :
35oC (95oF)

Pressure :
7 bar g (102 psi g)

Compressor using band B mineral oil, with No refrigerant dryer Installed

Outlet Quality :
20mg/L (20ppm)

ES2000 Series Oil / Water Separators
Customer Benefits

Help to protect & maintain the environment.
Efficiently separate oil & water, on-site and return up to 99.9% of the condensate to foul sewers.
Meet local environmental regulations.
Rapid Pay-back over conventional disposal methods.
Helps users in obtaining ISO14001 approval

ES2000 Series Oil / Water Separators Special Features ES2150 - ES2600

Manufactured from strong, chemically resistant high density polyethylene.