Specifications; Installation - Delta Environmental Products DE33 Series Installation, Operation & Parts Manual

DESCRIPTION
These submersible sump/effluent and sewage pumps are
designed for effluent and wastewater removal, sump drainage,
dewatering, flood control. The high temperature models can be
used in boiler blow down pits, condensate pits and as hot water
pumps. Units have built in thermal overload protection with auto-
matic reset. The mechanical seal and ball bearings on the motor
shaft are permanently lubricated. Stainless steel hardware and a
heavy duty lift out ring allow for easy disassembly after extended
use.
NOTICE: This unit is not designed for applications involving salt
water or brine! Use with salt water or brine will void warranty.

SPECIFICATIONS

Power supply required...............See "Motor, Switch and Cord
Maximum Liquid Temperature............................130°F(55°C)*
Discharge Adapter ......................................1-1/2" OR 2" NPT
PERFORMANCE
GPM AT TOTAL FEET
Model 5 10
CAPACITY GALLONS/MINUTE
DE33-20-A1 – 46
DE33-20-M1 – 46
DE40H-20-A1 61 52
DE40H-20-M1 61 52
DS40-20-A1 90 66
DS50-20-A1 91 64
DS50-20-M1 91 64
DS50F-20-A1 160 130
DS50F-20-M1 160 130
*For performance at maximum temperature see Catalog.

INSTALLATION

Hazardous voltage. Can shock, burn or kill.
Do not lift pump by the power cord. See "Cord Lift Warning"
on Page 3.
NOTICE: Install the pump on a hard, level surface (cement,
asphalt, etc.). Never place the pump directly on earth, clay or
gravel surfaces.
Piping
Piping must not be smaller than pump discharge.
When installed in a sewage system, the pipe must be
capable of handling semi-solids of at least 2" (51mm) in
diameter.
When installed in an effluent system, the pipe must be
capable of handling semi-solids of at least 3/4" (19mm) in
diameter.
The rate of flow in the discharge pipe must keep any solids
present in suspension in the fluid. To meet minimum flow
requirements (2 feet per second in the discharge line), size
the pipe as follows:
A Pipe Size Of:
1-1/2" (38mm)
2" (51mm)
2-1/2"(64mm)
3"(76mm)
Specifications" chart on Page 1
No flow
15 20 25 30
at height
shown below
32 12 – –
32 12 – –
45 38 30 21
45 38 30 21
25 – – –
31 – – –
31 – – –
75 22 – –
75 22 – –
Will Handle a Flow Rate Of:
12 GPM
21 GPM
30 GPM
48 GPM
In a sewage system use a 2" (51mm) check valve in pump dis-
charge to prevent backflow of liquid into sump basin. The check
valve should be a free flow valve that will easily pass solids. Be
sure check valve installation complies with local codes.
In an effluent system use a 1-1/2" (38mm) check valve in
pump discharge to prevent backflow of liquid into sump
basin. The check valve should be a free flow valve that will
easily pass solids. Be sure check valve installation complies
with local codes.
NOTICE: For best performance of check valve when handling
solids, do not install it with the discharge more than 45°
above the horizontal. Do not install the check valve in a verti-
cal position as solids may settle in the valve and prevent it
from opening on startup.
Drill a 3/16" (5mm) hole in the discharge pipe about 1–2"
(25-51mm) above the pump discharge connection (but below
check valve) to prevent airlocking the pump.
Electrical
Hazardous voltage. Can shock, burn, or kill.
When installing, operating, or servicing this pump, follow the
safety instructions listed below.
1. DO NOT splice the electrical power cord.
2. DO NOT allow the electrical cord plug to be submerged.
3. DO NOT use extension cords. They are a fire hazard and
22'
can reduce voltage sufficiently to prevent pumping and/or
22
damage motor.
40
40
4. DO NOT handle or service the pump while it is connect-
18
ed to the power supply.
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5. DO NOT remove the grounding prong from the plug or
18
modify the plug. To protect against electrical shock, the
23
power cord is a three-wire conductor and includes a 3-
23
prong grounded plug. Plug the pump into a 3-wire,
grounded, grounding-type receptacle. Connect the pump
according to the NEC or CEC and local codes.
For automatic operation, plug or wire the pump into an auto-
matic float switch or duplex controller. The pump will run con-
tinuously when plugged directly into an electrical outlet.
Connect or wire pump to its own individual branch circuit with
no other outlets or equipment in the circuit. Size fuses or cir-
cuit breakers according to the "Motor, Switch and Cord
Specifications" chart.
Risk of electrical shock and fire. Can burn,
kill or cause property damage. Be sure that power supply
information (Voltage/ Hertz/Phase) on pump motor name-
plate matches incoming power supply exactly. Install pump
according to all electrical codes that apply.
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