Sta-Rite SG12200325MB Installation Manual

SG12B/SGC12B, SG13B/SGC13B

and SGC20B Series

Grinder Pumps

INSTALLATION, OPERATION, & PARTS MANUAL

SAFETY INFORMATION

Carefully read and follow all safety instructions in this manual or on pump.

This is the safety alert symbol. When you see this

symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury!

warns about hazards that will cause serious

personal injury, death or major property damage if ignored.

warns about hazards that can cause serious

personal injury, death or major property damage if ignored.

warns bout hazards that will or can cause

minor personal injury or property damage if ignored. The word NOTICE indicates special instructions which are

important but not related to hazards.

1. Read these rules and instructions carefully. Failure to follow them could cause serious bodily injury and/or property damage.

2. Check your local codes before installing. You must comply with their rules.

3. Vent sewage or septic tank according to local codes.

4. Disconnect electrical power and keep hands away from pump inlet opening when working on or handling pump for any reason. Do not use automatic reset controls with this pump. Accidental rotation of the cutter with hands in the cutter area can cause severe injury.

5. Always keep pump properly serviced and maintained.

6. Use pump for designed task – that is, pumping domestic sewage and waste water containing solids. Do not pump metal particles, rocks, or other hard objects.

7. Do not pump corrosive or flammable liquids with this

pump.

DESCRIPTION

These submersible wastewater pumps are designed for sewage, effluent and wastewater removal or transfer, sump drainage, dewatering, flood control and for circulation. SGC12B, SGC13B and SGC20B Series Models include internal circuitry that detects seal leakage and overheating of windings. This circuitry is also available on the SG12B and SG13B Series Models. Other options available include lift-out system components, control panels, switches and alarms.

SPECIFICATIONS

Power Supply Required: . . . . . . . . . . . . . .208/230-230/460

Motor Duty: . . . . . . . . . . . . . . . . . . . . . . . . . . . .Intermittent

Maximum Liquid Temperature: . . . .1 Phase - 40° C (104° F)

3 Phase - 60° C (140° F)

Discharge Adapter:

SG12B/SGC12B/SG13B/SGC13B Series . . . . . . . .1-1/4”

SG20B/SGC20B Series . . . . . . . . . . . . . . . . . . . . . . . .2”

Power Cable: . . . . . . . . . . . . . . . . . . . . . . . . . . . .Type STO

Volute, Impeller and Pump Body: . . . . . .Class 30 Cast Iron

O-Rings and Elastomer Part of Shaft Seal: . . . . . . .Buna-N

Shaft Seal Faces: . . . . . . . . . . . . .Carbon and Ceramic with

Stainless Steel Trim

Fasteners in contact with liquid

being pumped: . . . . . . . . . . . . . . . . . . . . . . .Stainless Steel

Grinder Assembly: . . . . . . . . . . . . . .17-4ph Stainless Steel

293 Wright Street • Delavan, WI 53115

New Model Number Original Model Number

SG12200225MB 12SG1-1012 SG12200325MB 12SG3-1012 SG13200225MB 12SG1-1011

SG13200325MB 12SG3-1011 SGC12200225MB 12SGC1-1012 SGC12200325MB 12SGC3-1012 SGC13200225MB 12SGC1-1011 SGC13200325MB 12SGC3-1011 SGC20300225MB 20SG1-2013 SGC20300325MB 20SG3-2013 SGC20500225MB 20SG1-2012 SGC20500325MB 20SG3-2012 SGC20750325MB 20SG3-2011

MODEL NUMBER CROSS REFERENCE CHART

PIPING DIMENSIONAL GUIDE

Thermal Leak Insulation

Winding Resistance in Ohms*

Model HP Volts/Hz/Ph Amps KW Sensor Sensor Class B-W B-R R-W

SG12200225MB 2 230/60/1 12.0 1.5 No No B .90 5.3 6.2 SG12200325MB 2 208-230/460/60/3 6.6-6.0/3.0 1.5 No No F 2.2/8.8 2.2/8.8 2.2/8.8 SG13200225MB 2 230/60/1 14.0 1.5 No No B .90 5.3 6.2 SG13200325MB 2 208-230/460/60/3 7.1-6.4/3.2 1.5 No No F 2.2/8.8 2.2/8.8 2.2/8.8

SGC12200225MB 2 230/60/1 12.0 1.5 Yes Yes B .90 5.3 6.2 SGC12200325MB 2 208-230/460/3 6.6-6.0/3.0 1.5 Yes Yes F 2.2/8.8 2.2/8.8 2.2/8.8 SGC13200225MB 2 230/60/1 14.0 1.5 Yes Yes B .90 5.3 6.2 SGC13200325MB 2 208-230/460/60/3 7.1-6.4/3.2 1.5 Yes Yes F 2.2/8.8 2.2/8.8 2.2/8.8

SGC20300225MB 3 230/60/1 28.0 2.2 Yes Yes B .36 1.9 2.26 SGC20300325MB 3 208-230/460/60/3 15.5-14.0/7.0 2.2 Yes Yes F .74/2.96 .74/2.96 .74/2.96 SGC20500225MB 5 230/60/1 34.0 3.0 Yes Yes B .36 1.9 2.26 SGC20500325MB 5 208-230/460/60/3 20.0-18.0/9.0 3.0 Yes Yes F .74/2.96 .74/2.96 .74/2.96 SGC20750325MB 7.5 208-230/460/60/3 24.3-22.0/11.0 5.6 Yes Yes F .54/2.16 .54/2.16 .54/2.16

Table I: Electrical Nameplate Data

* Motor RPM is 3450.

NOTICE: Motors rated at 230V/60Hz/1ø may overload if operated on 208 volts. Consult factory before attempting to operate single phase motors on 208 volts.

Figure 1: Basin Dimensions

SG12B/SGC12B

Dimension SG13B/SGC13B

Vertical Discharge Pipe Length

(= Disch. Pipe Height – X) X = 22-3/4” (58 cm)

Locking Rail Length

( = Basin Depth – Y) Y =29-1/4” (74 cm)

Guide Rail Length

(= Basin Depth – Z) Z = 19-3/8” (49 cm)

Cut Length of Base Pipe: 14” (36 cm) Minimum Basin Diameter (Simplex): 24” (61 cm) Minimum Basin Diameter (Duplex): 36” (91 cm)

Dimension SGC20B

Vertical Discharge Pipe Length

(= Disch. Pipe Height – X) X = 25-7/16”(64.5cm)

Locking Rail Length

( = Basin Depth – Y) Y = 26-3/4”(68 cm)

Guide Rail Length

(= Basin Depth – Z) Z = 21-5/8”(55 cm)

Cut Length of Base Pipe: 16” (41 cm) Minimum Basin Diameter (Simplex): 30” (76 cm) Minimum Basin Diameter (Duplex): 42”(107 cm)

Dimensional guide to be used only if upper bracket is attached to cover as shown.

Motor Minimum

Model Voltage/ Max. Load Circuit

Number HP Phase Amps Req.(Amp)

SG12200225MB 2 208-230/1 12.0 20 SG12200325MB 2 208-230/460/1 6.6-6.0/3.0 10/10 SG13200225MB 2 208-230/1 14.0 30 SG13200325MB 2 208-230/460/3 7.1-6.4/3.2 10/10 SGC12200225MB 2 208-230/1 12.0 20 SGC12200325MB 2 208-230/460/3 6.6-6.0/3.0 10/10 SGC13200225MB 2 208-230/1 14.0 30 SGC13200325MB 2 208-230/460/3 7.1-6.4/3.2 10/10 SGC20300225MB 3 208-230/1 28.0 50 SGC20300325MB 3 208-230/460/3 15.5-14.0/7.0 20/10 SGC20500225MB 5 208-230/1 34.0 60 SGC20500325MB 5 208-230/460/3 20.0-18.0/9.0 30/20 SGC20750325MB 7.5 208-230/460/3 24.3-22.0/11.0 30/20

MOTOR SPECIFICATIONS

GPM at Total Feet (M) No Flow at

Model 20(6) 50(15) 80(24) 110(34) Height Shown

Number Capacity Gallons/Minute(LPM) Below Ft. (M)

SG12200225MB 44(167) 36(136) 12(45) – 85(26) SG12200325MB 44(167) 36(136) 12(45) – 85(26) SG13200225MB 55(208) 45(170) 28(106) 8(30) 116(35) SG13200325MB 55(208) 45(170) 28(106) 8(30) 116(35) SGC12200225MB 44(167) 36(136) 12(45) – 85(26) SGC12200325MB 44(167) 36(136) 12(45) – 85(26) SGC13200225MB 55(208) 45(170) 28(106) 8(30) 116(35) SGC13200325MB 55(208) 45(170) 28(106) 8(30) 116(35) SGC20300225MB 104(394) 76(288) 15(57) – 84(25.6) SGC20300325MB 104(394) 76(288) 15(57) – 84(25.6) SGC20500225MB 116(439) 108(409) 80(303) 18(68) 116(35) SGC20500325MB 116(439) 108(409) 80(303) 18(68) 116(35) SGC20750325MB 168(636) 150(568) 120(454) 86(326) 150(46)

PERFORMANCE CHART

Vert. Disch. Pipe Length

Locking Rail Length

Basin

Discharge

Depth

Height

Guide

Rail

Length

2014 0995

PIPING DIMENSIONAL GUIDE FOR GUIDE-RAIL LIFT-OUT SYSTEM

Figure 2: Duplex Dimensions

Figure 3A: Pump Dimensions

Figure 3B: Basin Dimensions

Model Basin Size A B C D E F G H

SG12B/SGC12B

42(1066.8) 46(1168.4) .58(14.7) 17(431.8) 18(457.2) 28(711.2) 7(177.8) 6.17(156.7) 22.88(581)

SG13B/SGC13B

48(1219.2) 54(1371.6) –2.58(–65.5) 17(431.8) 21(533.4) 28(711.2) 7(177.8) 9.3(3236.9) 22.88(581)

Duplex

60(1524) 66(1676.4) –2.75(–69.8) 17(431.8) 27(685.8) 28(711.2) 7(77.8) 9.5(241.3) 22.88(581)

SG12B/SGC12B

36(914.4) 40(1016) 2.38(60.4) 17(431.8) 15(381) 16(406.4) – 4.37(110.9) 22.88(581)

SG13B/SGC13B

42(1066.8) 46(1168.4) –.62(–15.7) 17(431.8) 18(457.2) 16(406.4 – 7.37(187.1) 22.88(581)

Simplex

48(1219.2) 54(1371.6) –2.92(–74.1) 17(431.8) 21(533.4) 16(406.4 – 9.67(245.6) 22.88(581) 60(1524) 66(1676.4) –2.92(–74.1) 17(431.8) 27(685.8) 32(812.8) – 9.67(245.6) 22.88(581)

SGC20B

48(1219.2) 54(1371.6) 2.69(68.3) 22(558.8) 21(533.4) 32(812.8) 9(228.6) 6.56(166.6) 24.88(632)

Duplex

60(1524) 66(1676.4) –2.70(–68) 22(558.8) 27(685.8) 20(508) 9(228.6) 11.95(303.5) 24.88(632)

SGC20B

36(914.4) 42(1066.8) 6.94(176.2) 22(558.8) NA 20(508) – 2.31(58.6) 24.88(632)

Simplex

42(1066.8) 46(1168.4) 3.94(100.0) 22(558.8) 18(457.2) 20(508) – 5.31(134.8) 24.88(632) 48(1219.2) 54(1371.6) .94(23.8) 22(558.8) 21(533.4) 20(508) – 6.31(160.2) 24.88(632) 60(1524) 66(1676.4) –3.13(–79.5) 22(558.8) 27(685.8) 20(508) – 12.38(314.4) 24.88(632)

Table II: Dimensioning Guide (See Figures 2 and 3)

Dimensions in Inches (mm)

All basin information listed below is for basin and cover combinations with covers having a separate access opening. Smaller basins without a separate access opening are listed above.

Notice: A Negative “B” dim denotes that the centerline of the lift-out opening is to the left of the centerline of the basin cover.

SG12B/SGC12B SG13B/SGC13B

SGC20B

5-1/8''

(130mm)

7-15/16'' (202mm)

Connection Height of Stationary Flange

Locking

Rail

Guide

Rails

17-5/8''

8-1/4"

(210mm)

10-5/8

(270mm)

(448mm)

10-9/16" (268mm)

13-1/4"

(337mm)

23-1/2"

(597mm)

1930 0895

1931 0895

4-1/2"

2-1/4"

Lift-Out Opening

Basin Cover

Base Flange

2" Galvanized Pipe Coupler

2" Mounting Flange (Vent)

1/2" Dia. Hole 2 Required

1932 0895

Figure 4: Assembly sequence for Guide Rail Lift-out System, Models SG12B/SGC12B, SG13B/SGC13B and SGC20B. Follow the numbered steps to assemble and install your Lift-Out system. Notice that, for the SGC20B, the assembly sequence for the Guide Rail Bracket, the Ball Check Valve, the Movable Flange, and associated parts differs from the SG12B/SGC12B and SG13B/SGC13B. This difference is required by the difference in size between the two pumps. Make sure that you use the correct sequence for your pump or the piping assembly will not mount on the pump or on the guide rails.

SG12B/SGC12B/SG13B/SGC13B SGC20B

NOTICE

The assembly sequence for the moveable parts (Steps 9 and 10) differs from SG12B/SGC12B/ SG13B/SGC13B to SGC20B models.

Follow the sequence that is correct for your pump.

2-1/4"

1938 0895

1939 0895

1937 0895

1935 0895

1936 0895

1933 0895

1934 0895

INSTALLATION

Install the pump as a free standing unit or with a guide rail lift-out system.

Free-Standing Unit:

Install the pump on the floor of an open top basin. Install a pipe union in the discharge piping, so that the pump can be lifted out of the basin without interference.

Lift-out System (see Assembly Steps, Page 4):

(See Figures 4 and 5 before assembling)

1. Mount the base flange (See Step 1, Page 4) to the basin floor.

2. Thread the 2-1/2” (64 mm) dia. pipe section (Step 2) into the base flange and tighten it.

3. Install the stationary flange (Step 3) on the base pipe and tighten the set screw to hold it.

4. Install the connecting plumbing in the stationary flange (Step 4).

5. Thread the user supplied 1” (25 mm) dia. guide rails (Step 5) into the stationary flange and tighten them.

6. Mount the upper rail bracket on the angle bracket (Step 6).

7. Install the angle bracket and upper rail bracket assembly in the tank or attach it to the basin lid as desired (Step 7).

8. Install the basin lid now if the guide rail bracket is mounted on it (Step 8).

The stationary parts (all those parts mounted in the basin) of the guide-rail lift-out system are now complete. Go on to Step 9 to assemble the movable parts of the system. These will mount on the pump discharge assembly. Follow the

sequence below that applies to your pump model.

SG12 / SG13 Series:

9A. SG12B/SGC12B/SG13B/SGC13B Thread the 1-1/4x8-1/2”

nipple into the pump discharge and tighten it.

9B. SG12B/SGC12B/SG13B/SGC13B Install the movable

guide rail bracket over the 8-1/4” nipple, then install one half of the pipe union on top of the nipple and tighten it. Do not tighten the set screws in the guide rail bracket yet.

9C. SG12B/SGC12B/SG13B/SGC13B Clamp the ball check

valve upside down (that is, flange up) in a vise so that it cannot turn (or fall) and thread one of the short nipples into it. Install the unused union half on the short nipple and tighten the assembly.

9D. SG12B/SGC12B/SG13B/SGC13B Turn the check valve

assembly over in the vise; clamp it so that the ball chamber points to your right or your left. Install the other short nipple in the discharge (hex) end of the check valve. Add the discharge pipe bracket over the nipple and then thread the movable flange onto the nipple. When tight, the movable flange should point directly away from you (that is, the check valve and the flange should be at right angles to each other). Install two O-Rings on the movable flange (see Step 9, Page 4).

10. SG12B/SGC12B/SG13B/SGC13B Remove the check valve assembly from the vise and turn it over; connect the union and tighten it with the movable flange pointing directly away from the pump. The ball check should point to one side or the other while the movable bracket points away from the pump. Thread the eyebolt through the discharge pipe bracket into the tapped hole provided in the top of the pump.

11. SG12B/SGC12B/SG13B/SGC13B Thread the locking rail into the movable flange; mount the locking bracket and tighten.

The movable parts of the SG12B/SGC12B/SG13B/SGC13B system are now complete. You are ready to rig lifting gear and lower the pump into the basin. Skip to Step 12.

SG20 Series:

9A. SGC20B Thread one of the short nipples into the pump

discharge; add a union half and tighten the assembly.

9B. SGC20B Clamp the ball check valve in a vise; thread the

2x6” nipple into the inlet side. Slide the guide rail bracket (also upside down) on to the nipple and thread the other union half over the free end of the nipple. Tighten.

9C. SGC20B Turn the assembly over in the vise and thread

the other short nipple onto the discharge side of the ball check valve. Add the discharge pipe bracket and the movable flange to this nipple and tighten the assembly. When tight, the ball check should point to one side or the other and the movable flange should point directly away from you (that is, the check valve and the flange should be at right angles to each other). Install two O-Rings on the movable flange (see Step 9, Page 4).

10. SGC20B Mount the ball check valve/discharge flange assembly on the pump with the movable flange pointing directly away from the pump. Tighten the union and thread the eyebolt through the discharge pipe bracket into the the threaded hole provided in the top of the pump.

11. SGC20B Thread the locking rail into the movable flange; mount the locking bracket and tighten.

The movable parts of the SGC20B system are now complete. You are ready to rig lifting gear and lower the pump into the basin.

12. Lift the pump assembly; slide the guide rail bracket and the movable flange over the guide rails at the top and lower the pump into the basin until it bottoms on the stationary flange. Raise the pump 1/8” and tighten the guide rail bracket set screws.

13. Slide the locking bracket over the guide rails and locking rail, then tighten all three set screws.

14. To remove the pump, loosen the guide rail set screws in the locking bracket and hoist the pump out of the basin.

CONTROLS

Risk of electric shock. Ground pump and

motor before connecting controls or power supply.

Adhere to local electrical codes governing pump and control installations.

Install simplex or duplex control panel for proper pump operation. A full range of controls and switches is listed in our catalog.

If a Berkeley control panel is not used, install a control panel with circuit breaker or fused disconnect as required by local code. Use magnetic starters with ambient compensated overload protection. Three phase units require three line protection; single phase units require only one line protection. Inadequate protection voids warranty.

SGC12B/SGC13B Series pumps are equipped with an onwinding thermostat (to protect the pump from overheating) and seal leak detection probe (to monitor seal plate and motor housing for the presence of water).

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