Zurn Z1186-ST Manual
Zurn
Ikke kategoriseret
Z1186-ST
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Side 1/4
Z1186-ST AND Z1188-ST SERIES
ZURN ENGINEERED OIL INTERCEPTORS WITH INTEGRAL STORAGE TANKS
Zurn Industries, LLC Specification Drainage Operation |
1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 · Ph. 855-663-9876, Fax 814-454-7929
In Canada |Zurn Industries Limited
3544 Nashua Drive, Mississauga, Ontario L4V 1L2 · Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. C
Date: 04/10/2018
C.N. No. 139851
Form No. IT78
Page 1 of 4
®
Dimensional Data (inches and [ mm ]) are Subject to Manufacturing Tolerances and Change Without Notice
PURPOSE
For nearly sixty years, Zurn Oil Interceptors have been used in plumbing waste systems to help protect property
and the environment against explosion, fire and pollution.
HOW THE ZURN OIL INTERCEPTOR OPERATES
The baffle plate opposite the inlet of the oil interceptor defuses the flow into the interceptor and lessens the
turbulence of the oil-laden water as it enters the intercepting chamber. Solids and sludge carried in the water
are stopped by the baffle and held in the solids retaining bucket between the inlet and the flow-retarding baffle.
Such accumulation can then be removed. The resulting, quiet, even flow of water through the interceptor permits
the oils and other light density substances to rise to the surface by the “flotation” principle of separation. Maxi-
mum separation and interception is affected in proportion to the elimination of turbulence of waste water within
the interceptor to the point of practically eliminating it.
INSTALLATION CONSIDERATIONS
Install the interceptor as close as practical to the fixture or fixtures being serviced. The interceptor may be set
on the floor, partially recessed in the floor, with top flush with the floor, or fully recessed below the floor to suit
piping and structural conditions.
Anticipate sufficient clearance for removal of the interceptor cover for cleaning. Also, take into consideration the
placement of the flow control fitting, and ventilation requirements. See recommended installation drawing
(Fig.1).
RECOMMENDED INSTALLATIONS
Commercial Uses Industrial Uses
Filling and Service Stations Machine Shops
Maintenance Garages Refineries
Airport Hangars Fabrication & Welding Plants
Laundries & Cleaning Establishments Foundries
Parking Facilities
SIZING
The rate of flow through the drainage line (GPM) and into the Interceptor is the main consideration in selecting
the proper sized oil interceptor. In addition, the viscosity characteristics and probable amounts of oils and other
light density substances to be separated should be taken into consideration, since the volume involved may
influence the intercepting chamber size. As the size of the interceptor increases, the flow rate and quantity of oil
that it separates efficiently also increases. If the oil interceptor is undersized, an overload condition will develop
and oil will pass through the interceptor in the waste water and into the drainage system. Overload conditions
may also cause water levels in the trap to rise. Therefore, water will be drawn off over the oil draw-off gate plate.
FLOW CONTROL
An oil interceptor correctly designed to separate oil and light density substances from waste water will not, by
itself, govern or regulate the flow of water through it at all times. The Zurn flow control fitting (Z-1108) must be
installed properly in every installation to sufficiently assure the flotation separation of the entrained substances,
which are to be intercepted at maximum efficiency.
The flow control fitting, designed with an integral orifice, gives a pre-determined optimum flow rate and assures
the elimination of turbulence in the oil interceptor, which could otherwise occur from sudden surges through the
drainage line.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
ADVERTENCIA: Cáncer y daño reproductivo - www.P65Warnings.ca.gov
AVERTISSEMENT: Cancer et effets néfastes sur la reproduction - www.P65Warnings.ca.gov
Z1186-ST AND Z1188-ST SERIES
ZURN ENGINEERED OIL INTERCEPTORS WITH INTEGRAL STORAGE TANKS
Zurn Industries, LLC Specification Drainage Operation |
1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 · Ph. 855-663-9876, Fax 814-454-7929
In Canada |Zurn Industries Limited
3544 Nashua Drive, Mississauga, Ontario L4V 1L2 · Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. C
Date: 04/10/2018
C.N. No. 139851
Form No. IT78
Page 2 of 4
®
Dimensional Data (inches and [ mm ]) are Subject to Manufacturing Tolerances and Change Without Notice
The orifice openings are related to the size and flow rating of the oil interceptor. It should also be noted that
standard orifice sizing is for gravity flow conditions, where no pressure build-up is considered. If the maximum
recommended flow is exceeded, the efficiency of the interceptor will decrease considerably. If necessary,
additional flow control fittings should be installed at all sources of flow.
VENTING
The Zurn oil interceptor with integral storage tank is furnished with 2” ips vent connections located on all sides of
the unit to accommodate the installation of the vent piping. Three of the vent connections are located on the oil
storage tank, and one vent connection is located on the interceptor body upstream of the double wall trap seal.
It is important that the unit be vented using any one of the vent connections provided. This will allow any of the
volatile gases rising from the intercepted substances to be carried from the interceptor and storage tank to the
atmosphere.
ADJUSTABLE DRAW-OFF
The Zurn oil interceptor with integral storage tank is furnished with an adjustable oil draw-off gate plate . This
draw-off creates a passageway for intercepted oils to travel from the main separation chamber to the oil storage
tank. The oil draw-off consists of an adjustable gate plate on the inside of the intercepting chamber. The
adjustable gate plate can be raised or lowered inside of the interceptor chamber to the proper height for draining
off the separated oils and similar light density substances that have separated and floated to the surface of the
interceptor chamber.
Thus, after the oils and other substances have accumulated inside the interceptor, they will drain from the
interceptor chamber by gravity flow over the internal gate plate. The gate plate shall be adjusted so that it’s top
edge is 1/8” above the operating water flow level in the interceptor chamber. There is no need to manually skim
or dip out the oil, since the oil will drain off by gravity flow over the draw-off gate plate after it has been properly
adjusted and tightened.
HOW TO SET ADJUSTABLE DRAW-OFF
The Zurn oil interceptor with integral storage tank should be completely installed and all connections made,
including the adjustable draw-off gate plate. If the gate plate was not set at it’s highest position, loosen all bolts
securing the gate plate as well as those above the gate plate. Slide the gate plate up to it’s highest position and
tighten in place.
Clean water is then run through the oil interceptor at the gpm flow rate that the interceptor will be operating at.
This establishes the operating water level. Mark the operating water level on the inside of the intercepting
chamber next to the gate plate and a mark 1/8” above the operating level mark. The marking of the operating
water level must be done while there is water flowing through the interceptor. If the mark is established at the
static water level, excess amounts of water will pass over the draw-off gate plate when the flow rate through the
interceptor increases to its operating level. In this case, the draw-off gate plate would become submerged.
Loosen the bolts securing the gate plate and slide the gate plate down so that the top edge is at the 1/8” mark
above the operating water level mark. Tighten bolts securing the gate plate at this level. After the oil interceptor
is put into operation and a film of oil and low density substances has accumulated at the surface, the adjustable
draw-off setting should be checked by taking samples while the oil interceptor is in operation. If the gate plate is
properly set to the correct height, the drawn-off oil should have no water in it. If it is apparent that water is
present in the drawn-off oil, the adjustable gate plate should be moved up until only oil travels over the draw-off
gate plate.
Produkt Specifikationer
| Mærke: | Zurn |
| Kategori: | Ikke kategoriseret |
| Model: | Z1186-ST |
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