Note to spec. writer: Tailor these specifications to meet your specific project requirements. Items that are underlined require input regarding the separator model chosen, quantity, or configuration. When a paragraph is bulleted, choose the paragraph that pertains to the separator you wish to specify. Contact McTighe for assistance in preparing specifications on separator configurations not included in this section.

Provide One (1) McTighe Industries, 3405 S. Westport Ave., Sioux Falls, SD 57106 (888)-776-0581, Model (CO, PCO, or SOLO-10) corrugated parallel plate oil-water separator having a flow rate of - -___ gallons per minute and producing a free oil effluent quality of ppm.

The oil-water separator shall be a special purpose factory assembled unit which is the standard product of a manufacturer regularly engaged in the production of such equipment with similar units operating for a minimum of five (5) years.

The separator shall be designed in accordance with Chapters 3 and 5 of the American Petroleum Institute (API) Manual on Disposal of Refinery Wastes (Volume on Liquid Wastes) and API Bulletin Number 1630 "Wastewater Handling and Treatment for Petroleum Marketing Facilities"-- First Edition May 1979. Both of these standards are out of print and are replaced by API 421 "Monographs on Refinery Environmental Control -- Management of Water Discharges" -- First Edition February 1990.

Separator shall be designed for intermittent, variable or continuous flows of water, oil and/or any combination of non-emulsified oil-water mixtures. The influent is composed of (list type of hydrocarbons, specific gravities, ambient conditions and water characteristics.)

* (Model CO) -- Separator shall process uncontrolled surges of water, oil, or oil-water mixtures ranging from zero flow up to 100% of maximum hydraulic throughput capacity and produce a free oil effluent quality of 15 ppm or less.

* (Model PCO & SOLO-10) -- Separator shall process uncontrolled surges of water, oil, or oil-water mixtures ranging from zero flow up to 100% of maximum hydraulic throughput capacity and produce a free oil effluent quality of 10 ppm or less.

Separator shall be designed in a manner to minimize solids accumulation in the corrugated plate pack to prevent plugging problems. This must include providing corrugated plates inclined upwards at a minimum angle of 30o. (For model SOLO-10 add: Separator shall include a sediment bucket with retriever handle for solids collection and removal.)

Separator shall be constructed for transport to job site as one integral unit, ready for immediate installation. Field splicing or field fabrication is unacceptable.

The separator shall be rectangular and constructed of (7 gauge or 10 gauge) carbon steel for installation above grade or in a vault. (The SOLO-10 is constructed of 1/4" thick carbon steel and is designed for shallow depth burial, installations above grade or in a vault).

Separator shall be externally coated in the factory with machine enamel or epoxy. Follow coating manufacturer's recommendations for sandblast and coating thickness.

* (Optional) -- Provide a factory applied interior epoxy coating that is compatible with the hydrocarbon and water characteristics specified above. Follow coating manufacturer's recommendations for sandblast and coating thickness.

The inlet pipe shall be a (___ inch N.P.T. half-coupling or -___ inch 150 lb. flat faced flange) connection. An inlet flow diffusing nozzle shall be installed at the inlet end of the separator, located at the furthest diagonal point distant from the outlet.

Inlet flow shall be directed on a single corrugated plate to reduce the flow velocity and spread the flow out over the cross sectional area of the separator.

A second series of corrugated parallel plates shall be downstream of the first and set at a 30o angle (45o angle for SOLO-10). The steel corrugated parallel plates shall be removable from steel corrugated plate pack housing. Plate pack shall be as close to the inlet pipe as possible to effect coalescence of the oil particles as soon as possible.

The discharge pipe shall be installed at the outlet end of the separator, located at the furthest diagonal point distant from the inlet. The outlet pipe shall be a (___ inch N.P.T. half-coupling or -___ inch 150 lb. flat faced flange) connection.

* (Model CO & PCO) -- The separator shall be furnished with two 3" clean-outs for oil and sludge removal. The entire separator cover shall be removable and include gasket and bolts. A separate access cover shall be provided for removal of oleophilic coalescer or the addition of an oleophilic coalescer in the future.

* (Model SOLO-10) -- The separator shall be furnished with a removable gasketed cover equipped with quick release latches for inspection and maintenance.

Separator shall be furnished with fittings for vent, waste oil removal and gauge. Separator shall include lifting lugs located on the ends of the separator.

Submit prototype test report information that demonstrates the ability of proposed separator to meet performance requirements called for in this specification. Samples must have been performed by an independent test laboratory and separator design and symmetry must be similar to unit proposed. Testing time period shall have lasted a minimum of three (3) tank volume changes with continuous water flow and continuous oil injection in the influent. Starting and stopping of the influent flow is unacceptable.

Accessories - Note: this listing includes some of our standard accessories, contact McTighe for details and specifications on equipment not listed below.

* (High Oil Alarm) -- A solid state oil alarm indicating system shall be provided by the separator manufacturer and shall consist of one (1) (NEMA 4 or NEMA 4/7) control panel A and one (1) stainless steel oil interface level sensor. Control panel shall include alarm light, alarm horn and silencer. Level sensor must be UL approved intrinsically safe.

* (Automatic Oil Pump-out) -- An automatic oil pump-out system shall be provided by the separator manufacturer and shall consist of one (1) (NEMA 4 or NEMA 4/7) control panel B, one (1) stainless steel level sensor, and one (1) self-priming, centrifugal pump with a hp, phase, 60 Hz, explosion proof motor to provide gpm at ft of head. System must be designed to prevent the transfer of water to storage.

* (Oil Skimmer with Compartment) -- Separator shall include an adjustable oil skimmer for transferring oil to an oil compartment. The oil compartment shall be integral to the oil-water separator and provide a storage volume of gallons.

* (Automatic Water Pump-out) -- Separator shall be equipped with an automatic water pump-out system and shall consist of one (1) (NEMA 4 or NEMA 4/7) control panel B, one (1) water level sensor, and a (submersible or end suction) pump with a hp, phase, 60 Hz, explosion proof motor to provide ___ gpm at ft of head. As part of the system, provide an integral water compartment on the end or side of the oil-water separator.

* (Sludge compartment paragraph to be inserted under Construction specification section) Separator shall include an integral solids interceptor on the inlet end of the oil-water separator for collecting and storing sludge and debris. Solids interceptor design must not allow oil to accumulate in the interceptor.