8
PVT/TRT/LKT/STT Submersible Pumps Vertical Installation N N O V A T I O N E F F I C I E N C Y Q U A L I T Y
PVT/TRT/LKT/STTSubmersible Pumps Vertical Installation
N N O V A T I O N
E F F I C I E N C Y
Q U A L I T Y
2
PVT/TRT/LKT/STTSubmersible Pumps Vertical Installation
Submersible Pump
The Ruhrpumpen Types PVT, TRT, and LKT are vertical submersible pumps for installation in a steel tube or a concrete well.
PUMP TYPES
A standardized submersible motor is combined with different pump casings and impellers to build the different pump types.
LKT with three-channel impeller for small flow and low heads, e.g. activated sludge, mixed water.
TRT with semi-axial impeller for medium flow and high heads, e.g. clean and pre-cleaned fluids.
PVT with axial propeller for high flow and low heads, e.g. activated sludge, mixed water, river water.
The pump is placed via an O-Ring and without any fixing devices on a machined, conical supporting and centring ring. By its own weight the pump is emplaced self-centring and resistant against tilting and distortion.
The installation has to be performed in a way, that the intake of the pump is submerged to a certain depth. The necessary minimum submergence is shown in the pump curve as Hü.
InSTALLATIOn
• PES-lifting rope for pump and cable with rubber elements to bind together cable and lifting rope.
• Monitoring system Thycon VR-T for evaluation of all sensors.
AccESSORY
1
10
2
3
4
5
6
7
8
9
11
1213
14
1213
14
12 13
14
Stable lifting handle where the lifting device is fixed on. A lifting rope consisting of PES-Slings, SS-Schackles and a SS-Screw Schackle is available as option. Special rubber parts are used as joints between cable and lifting slings and enable the slings to take the weight of the cable.
1
The cable type used for power and control cable is nSSHÖU-J, a heavy rubber-sheathed cable suitable for high mechanical stresses and thus a guarantee for long life.
2
Strain relief for the cable inlet.3
Water tight, replaceable cable inlet. Optional available in a special design with soldered cable cores and additionally sealed lenghtwise by casting resin.
4
Water tight encapsulated terminal housing with humidity probe.
5
In case of water ingress the aggregate is stopped.
Temperature probes in the windings (3 x PTc).
6
Dry running three-phase induction motor with squirrel cage rotor acc. to DIn VDE 0530, DIn En 60034-1 and IEc 34-11, enclosure IP 68, insulation class F (155˚C max. stator temperature). Optional explosion proof (ATEX II 2 G EEx de II, BT4).
7
Temperature monitoring of the lower bearings via PT100. From motor size 420 lower and upper bearings are equipped with a PT100.
8
Humidity probe in the oil chamber for early indication of inspection based on the water to oil ratio.
9
collection chamber with a float switch located underneath the lower bearings.
10
Disregard of the oil chamber inspection signal and further leakage will result in a shutdown of the machine before water can ingress into motor through the bearings.
Shaft sealing by two mechanical seals in tandem arrangement. Pump side Sic/ Sic, motor side Sic/Sic or Sic/carbon graphite.
11
The large oil reservior for lubrication of the mechanical seals and a large air cushion above it ensure intensive cooling of mechanical seals and bearings.
12
Axial casing with double curvature guide vanes transforms kinetic energy into pressure.
13
Impeller designed for the respective application case.
14
characteristics
3
Submersible Pumps Vertical Installation
PVT/TRT/LKT/STT
capacity 400 to 15,000 m³/h 1,761 to 66,043 gpm
Head 1.5 to 13 m 5 to 43 ft
Speed up to 1,480 min ¹ up to 1,750 rpm
Tube diameter 600 to 1,600 mm 24 to 63 in
Motor power up to 355 kW up to 476 hp
Submersible Propeller Pump PVT
The Ruhrpumpen Type PVT is a vertical submersible pump with propeller for installation in a steel tube or concrete well suitable to pump clean, raw, river and rain water as well as pre-cleaned waste water and activated sludge.
One-piece casing connected directly to the submersible motor with integrated inlet bell-mouth for evenly accelerated feed of the medium towards the impeller.
1 Optional the pump can be equipped with a wear ring made of chromium steel or bronze, which is inserted into the inlet bellmouth in the area of the impeller and protects it against wear.
3 The fibre repellent design comes with diagonal cleaning grooves in the impeller area of the inlet bellmouth which enable cutting and removal of fibrous matters and therefore provide them from building up in the gap between impeller and casing.
5
• Water Lifting Stations
• Water Works
• Irrigation
• Sewage Engineering
• Power Stations
• Sugar Industry
• Dock Equipment (Ship building)
BROAD APPLIcATIOn RAnGE
characteristics
note: For pump operations outside this range, please contact a Ruhrpumpen Representative.
-
PERFORMAncE DATA
Propeller head with inserted, adjustableblades made of chromium steel. The blade angle suitable for the respective duty point is firmly adjusted in the shop.Subsequent alteration of the blade angle for a different duty point is possible at standstill and after dismantling.
2 For pressure stage 1 (up to - 6 m head)back-bent blades with fibre repellent design are deployed.
4
1
2
34
5
PUMP SIzE IDEnTIFIER
Type
Hydrodynamic Parameter
nominal Impeller Diameter
PVT 1 / 645
ftft
97
6
4
3
14
12
0.7
22
29
1.4
mm
58
43
29
22
14
12
7
6
4
3
7286
9
8
5
4
3
2
10
6
0.5
15
20
1
30
20
15
10
8
65
4
5060
3
2
40
m³/h
3000 4000 5000 6000 10000 15000 20000 30000 50000 800008000 40000
m³/h
3600 4800 6000 7200 12000 18000 24000 36000 60000 960009600 48000
FLOWgpm
720 960 1200 2400 3600 4800 6000 7200 9600 12000 18000
gpm
600 800 1000 2000 3000 4000 5000 8000 10000 150006000
TO
TAL
HEA
D
60 Hz50 HzVarious PolesSelection Chart PVT
4
PVT/TRT/LKT/STTSubmersible Pumps Vertical Installation
capacity 800 to 5,500 m³/h 3,522 to 24,216 gpm
Head 8 to 50 m 26 to 164 ft
Speed up to 1,480 min ¹ up to 1,750 rpm
Tube diameter 700 to 1,000 mm 27 to 39 in
Motor power up to 410 kW up to 550 hp
Submersible Semi-axial Pump TRT
The Ruhrpumpen Type TRT is a vertical submersible pump with semi-axial impeller lor installation in a steel tube or concrete well suitable to pump clean and pre-cleaned fIuids.
Pump part directly connected to the submersible motor consisting of casing with guide vanes, impeller and inlet bellmouth.
1
The single entry, closed, semi-axial impeller with 4 up to 6 blades is equipped with back shroud blades for axial thrust compensation and protection against intrusion of particles into the area of the shaft seal.
Flanged inlet bellmouth for evenly accelerated feed of the medium towards the impeller.
5
• Water Works
• Irrigation and Drainage
• Power Stations
• cooling Water circuits
BROAD APPLIcATIOn RAnGE
characteristics
note: For pump operations outside this range, please contact a Ruhrpumpen Representative.
-
PERFORMAncE DATA
Inserted wear plate in the area of back shroud blades of the impeller.
2
Effective protection against erosion by replaceable casing wear ring at the suction side and anti-rotation ribs in the gap in front of the impeller.
4
1
2
3
4
5
PUMP SIzE IDEnTIFIER
Type
Hydrodynamic Parameter
nominal Impeller Diameter
TRT 8 / 530
30
20
15
12
10
6
25
40
8
5
50
FLOWgpm
500 600 800 1200 1500 2000 3000 40001000 2500 5000
gpm
600 720 960 1440 1800 2400 3000 3600 48001200 6000 m³/h
48003600 7200 9600 12000 18000 240006000
m³/h
3000 4000 5000 6000 8000 10000 15000 20000
86
72
58
43
144
115
216
29
m m
100
60
50
40
30
20
80
150
ft
43
36
29
22
17
14
12
9
7
58
72ft
TO
TAL
HEA
D
60 Hz50 HzVarious PolesSelection Chart TRT
3
5
Submersible Pumps Vertical Installation
PVT/TRT/LKT/STT
Submersible Three-channeI Pump LKT
The Ruhrpumpen Type LKT is a vertical submersible pump with three-channel impeller for installation in a steel tube or concrete well suitable to pump activated sludge as well as mixed, rain and raw water with upstream screen.
Pump part directly connected to the submersible motor consisting of casing with guide vanes, impeller and inlet bellmouth.
1
The single entry, closed impeller is a three-channel type with large passage areas and specially designed to enable careful treatment of the pumped medium. It is equipped with back shroud blades for axial thrust compensation and protection against intrusion of particles into the area of the shaft seal.
3
Flanged inlet bellmouth for evenly accelerated feed of the medium towards the impeller.
6
• Disposal of Waste Water
• Raw Water with Upstream Screen
• Activated Sludge
• Mixed Water
BROAD APPLIcATIOn RAnGE
characteristics
capacity 200 to 2,800 m³/h 800 to 12,328 gpm
Head 2 to 14 m 7 to 46 ft
Speed up to 990 min ¹ up to 1,180 rpm
Tube diameter 500 to 800 mm 20 to 32 in
Motor power up to 145 kW up to 194 hp
note: For pump operations outside this range, please contact a Ruhrpumpen Representative.
-
PERFORMAncE DATA
The pump casing is utilised as wear plate in the area of back shroud blades of the impeller.
2
Front shroud blades reduce the backflow of medium to the suction side, where impeller and wear ring form the radial sealing clearance.
4
1
2
3
4
5
PUMP SIzE IDEnTIFIER
Type
Hydrodynamic Parameter
nominal Impeller Diameter
LKT 4 / 325
6
Replaceable wear ring.5
Selection Chart LKT
TO
TA
L H
EAD
FLOW
240 360 420 480 600 720 840 960 1200 1800 2400 36001080300
141312
29
58
3643
22
109
7
6
ft
1098
20
40
2530
15
76
5
4
ft
4200 12000 1800096004800 6000 7200 84003000 36001200 1800 2400 gpm
3500 10000 1500080004000 5000 6000 70002500 30001000 1500 2000 gpm
200 300 350 400 500 600 700 800 1000 1500 2000 3000900250
13
29
22
14
12
910
7
3
4.3
3.6
2
6
1
9
20
15
10
8
67
5
2
3
2.5
1.5
4
1
Various Poles60 Hz50 Hz
mmm³/h
m³/h
6
Submersible Sewage Pump STT
The Ruhrpumpen Type STT is a vertical submersible pump with non-clogging and non-stringing two-channel impeller in pot design for stationary dry or wet well installation suitable for pumping sewage with coarse solid matter and fibrous content without upstream screen.
The radial split volute casing directly flanged to the submersible motor is specially designed for pumping sewage and equipped with large flow areas and large clearances between impeller and the rounded volute cutwater.
The suction side is equipped with a replaceable wear ring and anti-rotation ribs in the gap in front of the impeller, wich ensures effective prevention of erosion.
PUMP cASInG
The shaft is sealed up by two maintenance free mechanical seals in tandem arrangement. On the pump side both faces are made of wear resistant silicon carbide, on the motor side either silicon carbide or carbon graphite against silicon carbide is used. The mechanical seals are running in an oil reservoir, wich provides lubrication and cooling for the faces. The water to oil ratio is monitored by a probe to be able to generate an early maintenance indication.
SHAFT SEALInG
The single entry, closed impeller is a two-channel type in pot design with large passage areas, impeller vanes without distinct entrance edges and an impeller hub which is arranged outside the flow path. Together, with the special shape of the impeller channels this ensures non-clogging and non-stringing operation.
The impeller is equipped with back shroud blades for axial thrust compensation and protection against intrusion of particles into the area of the shaft seal.
IMPELLER
On the suction side impeller and wear ring form the radial sealing clearance.
Standard installation is in a wet well with autocoupling system. The pump is lowered via a stable double tube guide into the sump and automatically couples to a pedestal fixed on the sump bottom regardless whether the sump is flooded or not. Sealing of the connection is ensured via an O-Ring affixed and locked to the discharge flange. The minimum water level in the pump sump is determined by the necessary submergence Hü of the pump wich can be seen from the pump curve.
InSTALLATIOn
• Vertical dry installation, on pedestal flanged to the suction nozzle with a transition bend for evenly accelerated feed to the impeller.
• Vertical dry installation via pump feet on stripe bedrock, discharge nozzle tangential.
• Horizontal dry installation via pump feet on baseplate, discharge nozzle tangential.
• Motor with cooling jacket for dry or partly immersed installation.
VARIAnTS
• PES - lifting rope for pump and cable with rubber elements to bind together cable and lifting rope.
• Monitoring system Thycon VR-T for evaluation of all sensors.
AccESSORY
characteristics
1 Stable lifting handle where the lifting device is fixed on.
2 nSSHÖU-J power and control cable with strain relief device.
3 Water tight, replaceable cable inlet. Optional available in a special design with soldered cable cores and additionally sealed lenghtwise by casting resin.
4 Water tight encapsulated terminal housing with humidity probe. In case of water ingress the aggregate is stopped.
5 Temperature probes in the windings (3 x PTc).
Various PolesSelection Chart STT
TO
TA
L H
EAD
FLOW
240 360 480 600 720 840 960 1200 1800 2400 3000 3600 4800300
22
14
43
115
58
86
29
12
9
6
ft
15
10
30
80
40
60
20
8
6
4
ft
12000 180004800 7200 840036001200 1800 2400 gpm
10000 150004000 6000 700030001000 1500 2000 gpm
m3/h
200 300 400 500 600 700 800 1000 1500 2000 2500 3000 4000250 m3/h
22
58
29
14
12
3
7
6
4
2
9
1
m
15
40
20
10
8
2
5
4
3
1.5
6
1
m
60 Hz50 Hz
PVT/TRT/LKT/STTSubmersible Pumps Vertical Installation
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capacity 400 to 4,000 m³/h 1,761 to 17,611 gpm
Head 3.5 to 35 m 11 to 115 ft
Speed up to 990 min ¹ up to 1,180 rpm
Tube diameter 300 to 500 mm 11 to 20 in
Motor power up to 315 kW up to 422 hp
1
10
2
3
4
5
6
7
8
911
12 13
1415
characteristics
• Disposal of Waste Water
• Municipal Raw Water
• Activated Sludge
• Mixed Water
BROAD APPLIcATIOn RAnGE
note: For pump operations outside this range, please contact a Ruhrpumpen Representative.
-
PERFORMAncE DATA
PUMP SIzE IDEnTIFIER
Type
Hydrodynamic Parameter
nominal Impeller Diameter
STT 400 / 6 / 480
ø Discharge
Description
10 collection chamber with a float switch located underneath the lower bearings. Disregard of the oil chamber inspection signal and further leakage will result in a shutdown of the machine before water can ingress into the motor through the bearings.
11 The pump is lowered via a stable double tube guide into the sump and automatically couples to a pedestal fixed on the sump bottom. Sealing of the connection is ensured via an O-Ring affixed and locked to the discharge flange.
12 Shaft sealing by two mechanical seals in tandem arrangement. Pump side Sic/Sic, motor side Sic/Sic or Sic/carbon graphite.
13 The large oil reservoir for lubrication of the mechanical seals and a large air cushion above it ensure intensive cooling of mechanical seals and bearings.
14 Two-channel impeller with large free passages.
15 Volute casing designed for pumping of sewage with radial discharge nozzle.
6 Dry running three-phase induction motor with squirrel cage rotor acc. to DIn VDE 0530, DIn En 60034-1 and IEc 34-11, enclosure IP 68, insulation class F (155˚C max. stator temperature). Optional explosion proof (ATEX II 2 G EEx de II, BT4).
7 For dry installation or operation at low water level available with optional cooling jacket.
8 Temperature monitoring of the lower bearings via PT100. From motor size 420 lower and upper bearings are equipped with a PT100.
9 Humidity probe in the oil chamber for early indication of inspection based on the water to oil ratio.
