M a r i n e S a n i t a t i o n D e v i c e

U S C G / I M O • E C C E R T I F I E D

I S O 9 0 0 1 R E G I S T E R E D

®

ORCA® IIAS e w a g e Tr e a t m e n t S y s t e m

UP TO70 PEOPLE

Model No. of Per Day Dry Wet Length(A) Depth(B) Height(C)

People gals. liters lbs. kgs. lbs. kgs. in. mm in. mm in. mm

ORCA IIA-24 24 720 2,725 660 299 890 404 37.3 946 23.0 584 46.4 1,178

ORCA IIA-36 36 1,080 4,088 775 352 1,075 488 44.3 1,124 23.0 584 46.4 1,178

ORCA IIA-70 70 2,500 9,462 1,450 658 2,100 953 56.0 1,422 29.0 737 50.0 1,270

• For low-volume flush or vacuum toilets, the maximum number of people can be doubled.

• Consult Envirovac for sizing when vacuum toilets are applicable.

ORCA IIA sewage treatment systems are U.S. Coast Guard/IMO andEC Certified. The ORCA IIA is a Type II physical/chemical marinesanitation device (MSD) utilizing 5% chlorine solution for disinfectionand is designed specifically for marine applications. The ORCA IIA isequipped with a solid-state microprocessor control and monitoringsystem which automatically controls the treatment of sewage, warnsof any shutdown, and pinpoints any malfunctions. The ORCA IIAoperates on demand only…therefore the system draws power onlywhen treatment is needed. The treatment process is simple anddesigned to be sludge free.

General Dimensions

Enhanced System Features*• Integrated hypochlorite pump

- replaces gravity feed system- replaces solenoid and metering valves- reduces corrosion

• New level float switches• Redesigned pressure relief valve

• Additional sacrificial anode• Redesigned sediment tank floats• New flow pump components for ORCA IIA-70

features stainless steel impeller* Many features available as upgrade kits for

existing ORCA systems.

CAPACITY WEIGHT DIMENSIONS

2

M a r i n e S a n i t a t i o n D e v i c e ( M S D )

Process Description

1. Raw sewage enters treatment tank and is macerated and chlorinated.

2. Macerated sewage is continuously recirculated and passes through retention/reduction screen. Screen is continuously backwashed to prevent build-up.

3. Flow pump transfers effluent into sedimentation modules. Remaining solids fall to bottom and are reprocessed.

4. Clean effluent is discharged overboard.

IIA-24, 36 (1) IIA-70 (2)

Sewage Inlet 3 in. ANSI Flange 3 in. ANSI Flange

Vent 1-1/2 in. ANSI Flange 2 in. ANSI Flange

Backwash Water Inlet 1/2 in. ANSI Flange 1 in. ANSI Flange

Treated Effluent Discharge 3/4 in. ANSI Flange 1-1/2 in. ANSI Flange

Bleach Tank Connection 3/8 in. OD. Polyethylene 3/8 in. OD. Polyethylene

Tubing (10 feet) Tubing (10 feet)

1. Mating flanges, gaskets and hardware are supplied by ENVIROVAC.

2. ORCA IIA-70 flanges are DN compatible.

IIA-24, 36 IIA-70

Daily Capacity 720-1,080 gals. (2,725-4,100 l) 2,500 gals. (9,450 l)

Surge Capacity 40 GPM (2.52 l/s) 150 GPM (9.46 l/s)

for 8 seconds for 8 secondsIntermittent Sewage Rating

Standard Toilets 10 GPM (0.63 I/s) 14 GPM (.88 l/s)

Vacuum Toilets 6 GPM (0.38 I/s) 10 GPM (.63 I/s)

IIA-24, 36 IIA-70

A) 60 Hz power 14 GPM (0.88 l/s) 28 GPM (1.77 l/s)

@ 35 psi (241 kPa) @ 35 psi (241 kPa)

B) 50 Hz power 11 GPM (0.69 l/s) 21 GPM (1.32 l/s)

@ 35 psi (241 kPa) @ 35 psi (241 kPa)

IIA-24, 36 IIA-70

12 GPM (0.76 l/s) @ 40 psi (275 kPa) 24 GPM (1.51 I/s) @ 40 psi (275 kPa)

ORCA IIA-24, 36, 70

1 (one) gallon bleach per 480 gallons incoming sewage 1 (one) liter per 487 liters

• ORCACLOR hypochlorite generators available

ORCA IIA-24, 36 ORCA IIA-70

Flow Pump 1.5 Hp 1.2 KW Flow Pump 3.0 Hp 2.4 KW

Macerator 1.0 Hp 0.8 KW Macerator 1.0 Hp 0.8 KW

Total 2.5 Hp 2.0 KW Total 4.0 Hp 3.2 KW

IIA-24, 36 IIA-70

A) 230 VAC, 1 phase, 60 Hz; 30 amps X

B) 220-208 VAC, 3 phase, 60 Hz; 20 amps X

C) 220-230 VAC, 3 phase, 60 Hz; 15 amps X

D) 380 VAC, 3 phase, 5O Hz; l5 amps X X

E) 440-460 VAC, 3 phase, 60 Hz; 15 amps X X

CONNECTIONS

DISCHARGE CAPACITY

BACKWASH DEMAND

HYPOCHLORITE (BLEACH) REQUIREMENTS

SEWAGE CAPACITY

MOTOR OUTPUT

ELECTRICAL

Technical Specifications

3

ORCA IIA-24

ORCA® IIAS e w a g e Tr e a t m e n t S y s t e m

FOR 165 TO500 PEOPLE

Model No. of Per Day Dry Wet Length(A) Depth(B) Height(C)

People

ORCA IIA sewage treatment systems are U.S. Coast Guard /IMOand EC Certified. The ORCA IIA is a Type II physical /chemicalmarine sanitation system (MSD) utilizing 5% chlorine solution for dis-infection and is designed specifically for marine applications. TheORCA IIA system is equipped with a PLC control and monitoring sys-tem which automatically controls the treatment of sewage, warns ofany shutdown, and pinpoints any malfunctions. The ORCA IIA oper-ates on demand only…therefore the system draws power only whentreatment is needed. The treatment process is simple and designedto be sludge free.

General Dimensions

CAPACITY WEIGHT DIMENSIONS

4

gals. liters lbs. kgs. lbs. kgs. in. mm in. mm in. mm

ORCA IIA-165* 165 5,000 18,925 2,050 930 4,250 2,050 65.5 1,663 40 1,016 74.5 1,892

ORCA IIA-330* 330 10,000 37,850 2,325 1,055 5,460 2,477 76.8 1.950 40 1,016 74.5 1,892

ORCA IIA-500* 500 15,000 56,775 2,600 1,180 6,400 2,903 88.1 2,238 40 1,016 74.5 1,892

* The large ORCA IIA-165, 330 and 500 ships completely assembled and breaks down into three modular pieces for easy access into the vessel.

Enhanced System Features

• Added clear inspection cover • Updated control panel • Added backwash pressure switch

Sewage Inlet 4 in. ANSI Flange

Vent 2 in. ANSI Flange

Backwash Water Inlet 2 in. ANSI Flange

Treated Effluent Discharge 1-1/2 in. ANSI Flange

Bleach Tank Connection 3/8 in. O.D. Polyethylene Tubing (15 feet)

• ORCA IIA 165/330/500 flange connections are DN compatible

5

M a r i n e S a n i t a t i o n D e v i c e ( M S D )

Process Description

1. Raw sewage enters treatment tank is macerated and chlorinated.

2. Macerated sewage is continuously recirculated and passes through retention/reduction screen. Screen is continuously backwashed to prevent build-up.

3. After passing through the retention/reduction screen, the sewage flows through a series of sedimentation tanks.

4. Suspended solids are allowed to settle and are returned to the treatment tank via a sludge return pump for reprocessing.

5. Clean effluent passes through the sedimentation modulesand is discharged overboard.

Daily Capacity 5,000-15,000 gals. (19-57 m3)

Surge Capacity 900 GPM (57 l/s) for 8 seconds

Intermittent Sewage Rating

Standard Toilets 60 GPM (3.8 l/s)

Vacuum Toilets 30 GPM (1.9 l/s)

A) 60 Hz power: 90 GPM (5.7 l/s) at 27 ft. (8.2 m) discharge head

B) 50 Hz power: 90 GPM (5.7 l/s) at 21 ft. (6.5 m) discharge head

• ORCA IIA-165/330/500 are designed in 3 piece configuration

35 GPM (2.2 l/s) @ 0-5 ft. (0-1.5 m) Flooded suction required.

1 (one) gallon bleach per 480 gallons incoming sewage

1 (one) liter per 487 liters

• ORCACLOR hypochlorite generators available

ORCA IIA-165/330/500

Backwash Pump 2.0 Hp 1.5 KW

Discharge Pump 2.0 Hp 1.5 KW

Macerator Pump 2.0 Hp 1.5 KW

Sludge Pump 1.0 Hp 0.8 KW

Total 7.0 Hp 5.3 KW

A) 440/460 VAC, 3 phase, 60 Hz: 15 amps

B) 380 VAC, 3 phase, 50 Hz: 20 amps

CONNECTIONS

DISCHARGE CAPACITY

BACKWASH DEMAND

HYPOCHLORITE (BLEACH) REQUIREMENTS

SEWAGE CAPACITY

MOTOR OUTPUT

ELECTRICAL

EFFLUENT STANDARDS FOR ORCA

Technical Specifications

System certification USCG/IMO with effluent quality not exceeding the following:Suspended solids...50 mg/l, Fecal Coliform...250 (mpn)/100 ml, B.O.D.5...50 mg/l,Residual Chlorine...50 mg/l.

ORCA IIA-165

ORCACLOR POWER HOSE BARB (IN)

MODEL 230 VAC 1 ph 50/60 Hz Inlet Outlet Drain Vent

586B 2 amps 1 1 1 1

587B 4 amps 1-1/2 1-1/2 1-1/2 1

588B 8 amps 1-1/2 1-1/2 1-1/2 1

DIMENSIONS (APPROXIMATE)

IIA-24, 36 586B 1 0.44 67 31 7 178 21.2 540 27 686 17.5 445 8.2 209 15 381

IIA-70, 165 587B 2 0.88 124 57 11.4 290 27 686 34.3 872 26.5 572 8.2 209 24 508

IIA-330,500 588B 4 1.76 180 83 11.4 290 32 813 39 991 26.5 674 8.2 209 24 610

• Two ORCACLORS are required for ORCA IIA-500

General Dimensions

ORCACLOR

6

A u t o m a t i c E l e c t r o l y t i c C h l o r i n e G e n e r a t o r (Optional equipment for use with ORCA IIA MSD)

Process Description

ORCACLOR is an electrolytic device that produces chlo-rine from sea water. Chlorinated water is produced to dis-infect the sewage in the treatment tank. ORCACLOR isdesigned to supplement the existing bleach tank. If seawater is temporarily unavailable, the marine sanitationdevice operation can continue with the use of the bleachtank. The ORCACLOR is installed in the backwash waterpipe leading to the marine sanitation device. Chlorine isproduced based on the cell current and backwash waterflow rate. The ORCACLOR is controlled by the MSD toautomatically produce chlorine on demand.

Technical Specifications

Transfer Kits for ORCA’s

There are certain applications which require the installationof a system to transfer sewage to the ORCA. A collectiontank (shipyard supplied) may be needed to control the flowof sewage to the ORCA IIA unit. This system automaticallytransfers the correct amount of sewage to the ORCA forprocessing.

The ENVIROVAC transfer kit consists of:• Grinder pump (connected to the ship’s black water

holding tank)

Sea Water DemandSea water flow rate of 12-35 GPM (0.76-2.2 l/s).Maximum pressure of 40 psi (275 kPa) forORCAIIA-24/36/70

ORCACLOR Cells KW Weight (Appx.) (A) (B) (C) (D) (E) (F)

ORCA Model Model lbs kgs. in. mm in. mm in. mm in. mm in. mm in. mm

CONNECTIONS

MOTOR OUTPUTORCA IIA-24, 36, 70 1.0 Hp 0.8 KW

ORCA IIA-165, 330, 500 2.0 Hp 1.5 KW

• Control panel (interfaced with the ORCA control panel)• Level switches (installed in the ship’s black water holding

or surge tank)

Contact ENVIROVAC or your local ORCA agent to determineif a transfer system is required with your ORCA.

Deck Mounted VT-900

7

Va c u u m C o l l e c t i o n H o l d i n g Tr a n s f e r ( V C H T )

Vacuum Collection Holding Transfer systems are designed towork in conjunction with ORCA equipment. For ships, theEVAC 1.2 liter flush toilet is available in either deck or bulkheadmounted designs. Vacuum toilets are made of vitreous china orstainless steel.

The EVAC vacuum collection system is designed to utilizeeither sewage powered ejectors or vacuum pumps to createvacuum. Benefits of vacuum collection compared to gravitysystems are the reduction in sewage volume, smaller pipingand vertical lift capability. Vacuum piping allows flexibility in therouting of pipes and is not affected by the pitch and roll of thevessel.

Over 6,500 vacuum systems are currently installed in cargocarriers, cruise ships, destroyers, ferries, freighters, frigates,gambling vessels, mine hunters, patrol vessels, work boats,and yachts of all shapes and sizes.

The ENVIROVAC Small Vessel System (SVS) is a sewage collection systemwhich uses a rotary vane vacuum pump and vacuum tank. The SVS is designedspecifically to function with a small ORCA or on top of a larger holding tank. TheSVS has a 50 gallon holding tank and is designed for black water collection only.The SVS is currently available in 440/3/60, 208/3/60, 380/3/50 and 220/1/60standard power configurations.

S m a l l Ve s s e l S y s t e m ( S V S )

Bulkhead Mounted VT-900

50 GALLON SEWAGECOLLECTION TANKVACUUM PUMP

7 CFM

CONTROLPANEL

MODEL IIA—24/36

Four ejector system

Small Vessel System(SVS) with ORCA

Revised 7-01©ENVIROVAC INC. 7968/701 PRINTED IN THE U.S.A.

M a r i n e D i v i s i o n N e t w o r k C o v e r s t h e W o r l d

Corporate Office: Rockford, IL

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MARINE SYSTEMS

ENVIROVAC INC

1260 Turret Drive • Rockford, IL 61115 • U.S.A.

Phone: 815-654-8300 • Toll Free: 888-GET-EVAC (438-3822)

Fax: 815-654-8306 • E-mail: marine@evac.com

Website: www.envirovacinc.com