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Linn-Pumpen GmbH

CO Open impeller centrifugal electric pumps and threaded connection

MARKET SECTORS

CIVIL, INDUSTRIAL.

APPLICATIONS

  • Washing of metal parts and/or surface treatment
  • Washing of produce in the packaging industry.
  • Food industry washing equipment and syatems.
  • Dyeing plant and textile industry.
  • Plants for the circulation and transfer of moderately viscous liquids, with light chemical aggressiveness.
  • Industrial washing machines and commercial dishwashers.
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CO-COM stainless steel Pump (AISI316L) with open impeller
stainless steel industrial pump with open impeller

SPECIFICATIONS PUMP

  • Delivery up to 900 l/min (54 m3/h)
  • Head up to 24 m
  • Temperature of pumped liquid: -10°C to +110°C for standard version
  • Maximum working pressure : 8 bar (PN 8)
  • Suspended solids handled up to: CO350: 11 mm. CO500: 20 mm

MOTOR

  • Asynchronous, squirrel cage rotor, enclosed construction in aluminium casing, external ventilation.
  • Protection: IP55.
  • Class 155 (F) insulation.
  • Performances according to EN 60034-1.
  • Maximum ambient temperature: 40°C.
  • Standard voltage:
    • Single-phase version: 220-240 V 50 Hz, 2 poles with built-in automatic reset overload protection up to 1,5 kW
    For higher powers the protection must be provided by the user
    Three-phase version:
    • 220-240/380-415 V 50 Hz, 2 poles; overload protection to be providedby the use
  • Condensate drain plugs on all motors.

CONSTRUCTION FEATURES

  • Close-coupled, single-impeller centrifugal pump with axial suction and radial delivery
  • Threaded suction and delivery ports (Rp ISO 7)
  • Compact construction; adaptor for motor/pump coupling; the impeller is keyed directly to the motor shaft extension
  • Back pull-out design; no need to disconnect the pump body from the system pipes
  • AISI 316L stainless steel open impeller with four pressed vanes welded onto base disk
  • Impeller's front wear surface consists of a study AISI 316L stainless steel plate welded onto the suction port
  • AISI 316L stainless steel pump body and seal housing disk, with no diffusers or cavities for easier cleaning and maintenance
  • Pump body tightened by 8 screws allowing rotation of the discharge head
  • Mechanical seal:
    • Standard version: Carbon/ Ceramica faces, FPM elastomers. The other parts are made of AISI 316L stainless steel.
    • "K" version : faces are made of Silicon Carbide and Tungsten Carbide. FPM Elastomers. The other parts are made of AISI 316L stainless steel.
  • FPM O-Rings

OPTIONAL FEATURES

  • Different voltages and frequencies
  • Different materials for the mechanical seal and O-rings

Materials

Components

CO, COM
Pump body
Impeller
Seal housing
Shaftnende
 Stainless steel EN 10088-1-X2CrNiMo17-12-2 1.4404 (AISI 316L)
Impellermutter und Scheibe
Füll- und EntleerungsScrews 		Stainless steel EN 10088-1-X5CrNiMo17-12-2 1.4401 (AISI 316)
O-Ring FPM (Standard)
Mechanical seal Ceramic / Carbon / FPM (Standard)
Adapter Aluminium EN 1706-AC-AlSi11Cu2(Fe)DF (ASTM Class 25)
GehäuseScrews Galvanized steel

Performance ( n ≈ 2900 rpm )

ELECTRIC PUMP
TYPE		 RATED POWER Q = DELIVERY
 l/min 0   100 120 160 200 240 280 300 350 375 400 450 500 600 650 700 800 900
 m³/h 0   6 7,2 9,6 12 14,4 16,8 18 21 22,5 24 27 30 36 39 42 48 54
kW HP H = TOTAL HEAD METRES COLUMN OF WATER
 CO(M) 350/03   0,37 0,5 9,5 6,8 6,3 5,5 4,8 4,1 3,4 3                              
 CO(M) 350/05   0,55 0,75 12 9,2 8,8 7,9 7,1 6,3 5,5 5,1 4                           
 CO(M) 350/07   0,75 1 13,7 11,2 10,8 9,9 9,1 8,2 7,4 6,9 5,8 5,3                        
 CO(M) 350/09   0,9 1,2 15,7 12,7 12,2 11,3 10,5 9,6 8,8 8,3 7,2 6,6 5,9                     
 CO(M) 350/11   1,1 1,5 17,3 14,3 13,8 12,9 12 11,2 10,5 10,1 9,1 8,6 8 6,8                  
 CO(M) 350/15   1,5 2 20,3 16,9 16,4 15,3 14,4 13,5 12,7 12,2 11,2 10,6 10 8,7 7,2               
 CO(M) 500/15   1,5 2 16          13,4 12,8 12,3 12 11,3 10,9 10,5 9,8 9 7,4 6,6 5,8      
 CO(M) 500/22   2,2 3 19,6          17,3 16,7 16,2 15,9 15,2 14,9 14,5 13,7 13 11,3 10,4 9,6 7,7   
 CO 500/30   3 4 24,1          20,9 20,3 19,7 19,3 18,5 18,1 17,7 16,9 16 14,3 13,5 12,6 10,8 9
PUMP TYPE
1~  		 INPUT
POWER*
kW  		 INPUT
CURRENT*
220-240 V
A  		  CAPACIT.
ìF / 450 V  		    PUMP TYPE
3~  		 INPUT
POWER*
kW  		 INPUT
CURRENT*
220-240 V
A  		 INPUT
CURRENT*
380-415 V
A  
 COM350/03   0,63 2,82 14     C0 350/03   0,64 2,53 1,46
 COM350/05   0,88 4,25 16     CO 350/05   0,79 2,7 1,56
 COM350/07   1,02 4,67 20     C0 350/07   1 3,57 2,06
 COM350/09   1,21 5,46 25     CO 350/09   1,13 4,21 2,43
 COM350/11   1,75 7,85 30     C0 350/11   1,69 5,2 3
 COM350/15   2,04 9,21 40     CO 350/15   1,98 6,3 3,64
 COM500/15   2,02 9,12 40     C0 500/15   1,96 6,27 3,62
 COM500/22   2,71 12,1 50     CO 500/22   2,73 9,06 5,23
 -   -   -   -   C0 500/30   3,97 11,7 6,78

Dimensions and weights

stainless steel industrial pump with open impeller - dimensions
PUMP TYPE Dimensions ( mm ) DNA  DNM kg
D H2 L L1
 COM 350/03   120 220 325 62  Rp 1 ½  Rp 1 ¼ 10
 COM 350/05   140 230 339 76  Rp 1 ½  Rp 1 ¼ 11,9
 COM 350/07   140 230 339 76  Rp 1 ½  Rp 1 ¼ 12,6
 COM 350/09   140 239 339 31  Rp 1 ½  Rp 1 ¼ 13,2
 COM 350/11 156 246 385 69  Rp 1 ½  Rp 1 ¼ 14,5
 COM 350/15 156 246 385 69  Rp 1 ½  Rp 1 ¼ 16,2
 COM 500/15 156 246 385 69  Rp 2    Rp 1 ½ 16,2
 COM 500/22   176 230 416 114  Rp 2    Rp 1 ½ 17,8
 CO 350/03   120 220 325 62  Rp 1 ½  Rp 1 ¼ 10
 CO 350/05   140 230 339 76  Rp 1 ½  Rp 1 ¼ 11,9
 CO 350/07   140 230 339 76  Rp 1 ½  Rp 1 ¼ 12,6
 CO 350/09   140 230 339 76  Rp 1 ½  Rp 1 ¼ 12,2
 CO 350/11 156 238 385 114  Rp 1 ½  Rp 1 ¼ 14,5
 CO 350/15 156 238 385 114  Rp 1 ½  Rp 1 ¼ 16,2
 CO 500/15 156 238 385 114  Rp 2    Rp 1 ½ 16,2
 CO 500/22   156 238 385 114  Rp 2    Rp 1 ½ 17,8
 CO 500/30   176 230 416 149  Rp 2    Rp 1 ½ 22