General The well-known ETA-pump on the bearing bracket C and D is constructed in accordance with DIN 24 255 standard and completes the performance range up to max. 1800 m3/hr (6600 Imp.g.p.m., 7900 USgpm). The graduation of pump sizes enables you to select a model of high efficiency and low absorbed horsepower under any set of operating conditions. Field of Application General water supplies for municipalities, industry and agri- culture; water works, pressure boosting and irrigation plants; circulation of hot water, cooling water and oil; as condensate, building sites, and loading pumps etc. Design Horizontal single and two stage centrifugal pump with volute casing flanged onto the bearing bracket. Sizes 100-50/2 and 125-50/2 are two-stage. Overhung radial flow impeller equipped with balance holes for hydraulic balancing. Renewable casing wear rings and shaft protecting sleeves. Bearings Axial and radial location by two oil lubricated deep groove ball bearings in the bearing pedestal. Grease lubrication on request. ETA C and D 39 39 Product Catalogue Shaft Seal Uncooled soft-packed stuffing box up to 110 °C (230 °F) or cooled soft-packed stuffing box up to 140 °C (285 °F). Other constructions are available which cater for special require- ments. Uncooled mechanical seals up to 140 °C (285 °F) max. may also be fitted. Nozzle Orientations Suction nozzle axial, discharge nozzle radially pointing upward; on sizes 200-23, 250-29 and 300-35 tangentially left pointing upward. Other nozzle positions possible upon request. Flanges machined according to DIN 2533, NP 16, from size 200 upward according to DIN 2532, NP 10. Drive Direct drive by an electric motor, an internal combustion engine or a turbine via a flexible coupling.
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GeneralThe well-known ETA-pump on the bearing bracket C and D isconstructed in accordance with DIN 24 255 standard andcompletes the performance range up to max. 1800 m3/hr (6600 Imp.g.p.m., 7900 USgpm). The graduation of pumpsizes enables you to select a model of high efficiency and lowabsorbed horsepower under any set of operating conditions.
Field of ApplicationGeneral water supplies for municipalities, industry and agri-culture; water works, pressure boosting and irrigation plants;circulation of hot water, cooling water and oil; as condensate,building sites, and loading pumps etc.
DesignHorizontal single and two stage centrifugal pump with volutecasing flanged onto the bearing bracket. Sizes 100-50/2 and125-50/2 are two-stage. Overhung radial flow impellerequipped with balance holes for hydraulic balancing.Renewable casing wear rings and shaft protecting sleeves.
BearingsAxial and radial location by two oil lubricated deep groove ballbearings in the bearing pedestal. Grease lubrication onrequest.
ETA C and D
39 39
Product Catalogue
Shaft SealUncooled soft-packed stuffing box up to 110 °C (230 °F) orcooled soft-packed stuffing box up to 140 °C (285 °F). Otherconstructions are available which cater for special require-ments. Uncooled mechanical seals up to 140 °C (285 °F)max. may also be fitted.
Nozzle OrientationsSuction nozzle axial, discharge nozzle radially pointingupward; on sizes 200-23, 250-29 and 300-35 tangentially leftpointing upward. Other nozzle positions possible uponrequest.Flanges machined according to DIN 2533, NP 16, from size200 upward according to DIN 2532, NP 10.
DriveDirect drive by an electric motor, an internal combustionengine or a turbine via a flexible coupling.
Materials of construction Part No. Part Designation Material combinations
at temperatures up to 120°C 10 ats. gaugeat temperatures exceeding 120°C up to 140°C 8 ats. gauge
For higher pressures; attention is drawn to design in S.G. cast iron.
Maximum Peripheral Speed:
For cast iron impellers 40 m/sec (131 ft/sec) (diameter in metres x R.P.M. x 3,14) 60
Use cast chrome-steel or bronze, for higher peripheral speeds.
Temperature:
Maximum operating temperature for all sizes:
with standard stuffing box N 105°C (uncooled stuffing box)with hot water stuffing box HW 140°C (cooled stuffing box)
For higher temperatures, refer to S.G. cast iron construction.
Lubrication:
The pump shaft runs in two oil-lubricated ball-bearings.The bearings and the bearing bracket should be flushed with petrol or benzene while slowly rotating the shaft. After cleaning and complete removal of the cleaning agent, the bearing bracket should be filled with oil, Maximum and mini-mum oil level are indicated by marks on the dipstick.Only high-grade branded oils conforming to the following specifications should be used:
ETA C and D
41 41
Bearing Pedestal:
Max. value N/n kW/RPM
Corresponding maximum 900 rev/min kWmotor rating at speeds: 1400 rev/min kW
Cooling water inlet and outlet connec-tions for stuffing-box design HW, and seal-ing liquid or leakage connections fordesign VSM are 3/8”. Connection for othersealing liquid and flushing liquid VSHis 1/4” (see operating manual).
Connections provided for:
I Priming funnel, ventingSize 100-40 to 125-50 1/2”Size 150-26 to 300-35 3/4”
III DrainingSize 100-40 to 125-50 1/2”Size 150-26 to 300-35 3/4”
bearing pedestal C 3/4”Leakage drainbearing pedestal D 1”
ETA C and D
43 43
Size
100-40
dm 6
100-50
125-33
125-40
125-50
150-26
150-33
150-40
150-50
200-23
200-40
250-29
250-33
250-40
250-50
300-35
244
Tang
entia
ld
isch
arge Shaft extension
l u t Suc
tion
Flangedia
BoltCircle
dia
RaisedFacedia
Bolts
Number Holedia
dis
char
ge
Flangedia
BoltCircle
dia
RaisedFacedia
Bolts
Number Holedia
292
352
42
42
42
42
42
42
42
50
50
42
50
50
50
50
50
50
105
105
105
105
105
105
105
135
135
105
135
135
135
135
135
135
12
12
12
12
12
12
12
14
14
12
14
14
14
14
14
14
45,1
45,1
45,1
45,1
45,1
45,1
45,1
53,5
53,5
45,1
53,5
53,5
53,5
53,5
53,5
53,5
125
125
150
150
150
200
200
200
200
200
250
250
300
300
300
300
250
250
285
285
285
340
340
340
340
340
395
395
445
445
445
445
210
210
240
240
240
295
295
350
350
400
295
295
295
400
400
400
188
188
212
212
212
268
268
268
268
268
320
320
370
370
370
370
8
8
8
8
8
8
8
8
8
8
12
12
12
12
12
12
18
18
23
23
23
23
23
23
23
23
23
23
23
23
23
23
100
100
125
125
125
150
150
150
150
200
200
250
250
250
250
300
220
220
250
250
250
285
285
285
285
340
340
395
395
395
395
445
180
180
210
210
210
240
240
240
240
295
295
350
350
350
350
400
8
8
8
8
8
8
8
8
8
8
8
12
12
12
12
12
18
18
18
18
18
23
23
23
23
23
23
23
23
23
23
23
158
158
188
188
188
212
212
212
212
268
268
320
320
320
320
370
Suction Flange Discharge Flange
ETA: Flange size 100 to 150 - according to DIN 2533 NP 16 (EN 1092-2 PN16)Flange size 200 to 300 - according to DIN 2532 NP 10 (EN 1092-2 PN16)
ETA B: according to DIN 2533, nominal pressure 16 (EN 1092-2 PN16)
For connection to pipelines with foreign flange standards (ASA pr BST)adaptor pieces or welded connecting flanges are fitted (acc. to DIN onthe pump side).
Number Of Stages:
Pumps are single stage except the following sizes:Two stage pumps - ETA 100-50 and 125-50
Shaft Protection:
All sizes with bearing pedestals C and D have shaft sleeves of cast iron forstandard design and stainless steel for mechanical seal design.
ETA
44 44
Bearing PedestalBRK Pedestal with no shaft protecting sleeve
400.3 Flat gasket407 Stuffing box gland409 Deep groove ball bearing
412.3 Joint ring412.4 Joint ring426 Bearing end cover426a Bearing end cover432 Felt ring433 Stuffing box packing434 O-ring437 Gasket438 Gasket439 Gasket447 Lantern ring456 Felt ring cover471 Cover472 Rotating seal ring for casing474 Washer475 Stationary seal ring478 Right handed spring
500.3 Set ring556 Threaded plug/Sealing liquidIX Cooling water / lnletX Cooling water / Outlet