Steimel SFE10/875 Gear Pump

Prospekt englisch 8/01
20.09.2001
y
8:48 Uhr
p
Seite 11
yp
Rotary-Lobe-Pump Type PK Throughputs Pump Pressure p in bar, rotational speed n = 200 rpm
capacity Power rating 2 4 6 8 l/min 2 1,5 1,0 – NkW 0,12 0,15 0,18 –
PK 45/15 kW 0,25 0,25 0,25 – motor • l/min 8 7 6 5 NkW 0,14 0,17 0,20 0,23
PK 58/25 kW 0,25 0,25 0,37 0,37 motor • l/min 25 24 23 22 NkW 0,26 0,34 0,42
0,49
PK 84/25 kW 0,37 0,55 0,55 0,75 motor • l/min 50 48 46 44 NkW 0,7 0,8 1,1
1,3
PK 84/50 kW 1,1 1,1 1,5 2,2 motor • l/min 75 72 69 66 NkW 0,9 1,1 1,2 1,6
PK 84/75* kW 1,1 1,5 2,2 2,2 motor • l/min 95 92 89 86 NkW 1,2 1,5 1,8 2,2
PK 115/50 kW 1,5 2,2 2,2 3,0 motor • l/min 190 184 178 172 NkW 2,0 2,8 3,5
4,4
PK 115/100 kW 3,0 4,0 5,5 5,5 motor • l/min 315 305 295 285 NkW 3,4 4,7 6,0
7,4
PK 175/60 kW 5,5 7,5 7,5 11,0 motor • l/min 525 510 495 – NkW 5,3 7,5 9,7
–
PK 175/100 kW 7,5 11,0 15,0 – motor •
* pump available only of cast iron Pump size
Basic Features The PK pump is designed as a modular construction system. It consists of a synchronous gear-head
driving the rotary lobes contained in a pump body having suction and pressure ports and connections.
The robust bearings are located in the gear-head where they are protected from the pumped media by
a mechanical sealing. Conversely, special seals contain the lubricating oil within the gear-head.
Selection Criteria For The Correct Pump Type The design of rotary lobe pumps necessitates a clearance gap between the rotary lobes and the internal
case profile, which produces the necessary slippage.
However this only becomes significant when low viscous media (e.g. water) is pumped under presssure.
In this case, the lower rotational speed range cannot be used.
This slippage is negligible in the case of products with viscosities of more than approx. 300 cP. With these
products, the volumetric efficiency is practically 100 %.
Displacement The displacement of the PK pump is absolutely dependent on the viscosity and rotational speed. The
displacement of the filled pump is able to cope with at least 8 m water column or a vacuum of approx. 100
mbar.
NkW= rated power consumption at the pump shaft referring to a viscosity of 300 – 500 m2/s (cSt)
• Required driving power (2 % increase has been considered) The flow capacity (lt/min.) refers to the indicated speed.
Flow tolerance + 5 %. At a viscosity of below 300 mm2/s the flow capacity
declines. The pump capacity with other speeds can be translated accordingly. Higher pressure are available a request.
Pressure p in bar, rotational speed n = 400 rpm
2 4 0,13 0,25 16 0,21 0,37 50 0,7 1,1 100 1,3 2,2 150 1,8 2,2 190 2,0 3,0
380 3,8 5,5 630 6,7 11,0 1050 10,9 15,0
4 3 0,16 0,25 14 0,26 0,37 49 0,8 1,1 98 1,6 2,2 147 2,5 5,0 187 2,7 4,0
374 5,2 7,5 620 9,3 15,0 1035 15,4 18,5
6 2 0,19 0,25 12 0,32 0,55 48 1,1 1,5 96 1,9 3,0 144 3,2 4,0 184 3,4 4,0
368 6,5 11,0 610 12,0 15,0 1020 20,0 30,0
8 – – – 10 0,37 0,55 47 1,3 2,2 94 2,3 3,0 141 4,6 5,5 181 4,2 5,5 362 7,9
11,0 600 14,7 18,5 – – –
Cleaning And Sterilisation The Rotary Lobe Pump is easy to clean and maintain.
When the four retaining nuts have been unscrewed and the cover removed, the pump is completely
accessible for inspection and cleaning. The pipe connections do not have to be removed.
In applications where products are used which do not become sticky or harden-off, it is generally sufficient
to just rinse the pump thoroughly with water or with suitable solvents. The pump is therefore selfcleaning.
However, in regard to its use in the foodstuff sector, and the pharmaceutical and cosmetic industries, the
PK Rotary Lobe Pump is designed so that it can be dismantled in a few quick steps. This makes all the
parts which come into contact with the product (pump body, rotary lobes etc.) and the sealing area
freely accessible for easy cleaning. There are no “dead corners“ or recesses that cannot be inspected or
reached. The pump can also be sterilised with steam or with the gear motor removed, in an autoclave.
Type PK
• Can rotate in either direction
• Cannot run dry as there is no metal to metal contact
• Robust enclosed bearing design
• Lubricated gear-head
• Higher pressure applications have additional bearings in the end cover
• Several tightening features
• Easy dismantling and assembly
• Various pipe connection possibilities
Type PKM
• Housing or cover heating available
• Completely closed heating jacket
Pressure p in bar, rotational speed n = 600 rpm
2 6 0,14 0,25 24 0,26 0,37 75 0,9 1,1 150 1,5 2,2 225 2,5 3,0 285 2,7 4,0
570 5,8 7,5 945 8,8 11,0 1575 15,8 18,5
4 5 0,17 0,25 22 0,36 0,55 74 1,1 1,5 148 2,0 3,0 222 3,6 4,0 282 3,8 5,5
564 8,1 11,0 935 12,5 15,0 1560 22,4 30,0
6 4 0,20 0,37 20 0,44 0,55 73 1,4 2,2 146 2,5 3,0 219 4,7 5,5 279 4,9 7,5
558 10,4 15,0 925 16,2 22,0 1545 29,1 37,0
8 – – – 18 0,53 0,75 72 1,6 2,2 144 3,0 4,0 216 5,6 7,5 276 6,0 7,5 552 12,8
15,0 915 19,8 30,0 – – –
Displacement cm3/U 12 50 130 260 390 500 1000 1620 2700
• Can be heated with water, steam or oil, whichever is available
• Pressure max. 6 – 8 bar
• Heating temperature (GG) = 300 °C
• Heating temperature = 250 °C
Type PKE
• Electrical cover heating
• Heatable through 2 heating cartridges
• Adjusted through temperature control equipment
• Adjustable up to 300 °C
Design Standard design Gear housing Power transmission wheels Bearing
GG - 25 16MnCrS5 special antifriction bearing FPM
Radial shaft sealing rings Casings in contact with the product 1.4581/1.4571
Shafts 1.4462 Rotary lobe 1.4435 Mechanical sealing hard metal/FPM On request
Casings in contact with the product GG-25, GS-45, St 50 Shafts 16MnCrS5, hardened
Rotary lobe
CK 45 Mechanical sealing hard metal/Kalrez Additional step bearing bronze
Sealing Packing (foodstuff approved) Packing (wear resistant aramide fiber)
Prelon ring (PTFE) with chrome oxyde coated shaft
11