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WATER AND WASTEWATER TECHNOLOGIES

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Series PC Dosing pump

PC Dosing Pump

Progressing cavity dosing pump, for continuous low flow dosing of conditioning agents to delivery pipework in sludge dewatering and thickening applications.

Construction

Materials of construction; cast iron body with stainless steel components (except coupling rod). Suction chamber, end cover and seal housing in advanced HDPE and PVDF plastics. Choice of rotor and stator materials to suit individual applications e.g. hard chrome plated rotor or natural rubber stator.

Applications

Typical applications for the PC dosing pump include:

  • Low flow dosing applications.
  • Delivery of barrier layer injection and conditioning agents in sludge dewatering and thickening.
  • Controlled flocculent pumping.
  • General industry and chemical processing.

Features

  • Enhanced coupling rod design gives higher pressure capabilities of up to 72 bar.
  • A number of dosing pump parts are interchangeable with the PC Transfer range.
  • Gentle pumping action, minimises shear and crush damage to the pumped product.
  • Supplied with a baseplate to ease installation, or optional without.
  • Fully sealed drive train to maximise life and minimise downtime.
  • Hard faced, single mechanical seal as standard, with packed gland as an option.

Motor / drives

  • Electric motor drive units supplied as direct-coupled or variable speed drives with mechanical variable speed or frequency inverter.
  • Robust drives and gearboxes for longer life.

Performance

Capacity, for flows up to 1250 l/h and differential pressure up to 72 bar, to operate in a range of process temperatures up to 120 °C (stainless steel version).

Weight

Motorized pump weight for all models is 13 kg.
All wear parts are less than 12 kg.

Prtformance data

             m3/h = capacity. Bar = differential pressure.

Speeds (rpm)

Model Maximum shaft speeds
Code Throat size 1,5 kW 2,2 kW 4,0 kW
A02CA 200 42&69 40&66 51&83
A03CA 300
A05CA 500
A06CA 600
A10CA 1000
A15CA 1500

Materials

Description Material
Pump casing Cast iron, BS EN 1563 grade EN-GJS 400-18
Rotor 316S11 stainless steel BS 970 or Hastelloy ASTM B574
Stator See pump coding table
Drive shaft 316S11 stainless steel BS 970 or Hastelloy ASTM A494
Coupling rod Steel BS EN 10277, grade 20NiCrMoS2-2 hardened to 650-800Hv
Mechanical seals Silicon carbide faces, viton o-rings (EPDM by special request), stainless steel 316 springs

Pump coding

Range Dosing pump L                
Size 140 l/hr @1500rpm   T              
270 l/hr @1500rpm   V              
550 l/hr @1500rpm   W              
1100 l/hr @1500rpm   Y              
Stages Two stage     2            
Four stage     4            
Eight stage     8            
Twelve stage     9            
Delivery materials Stainless       S          
Hastelloy       H          
Rotating parts Stainless steel AISI 316         2        
Stainless steel AISI 316+HCP         3        
Hastelloy ASTM B574         4        
Rotor MK A (EPDM stator only)           X      
MK 1           A      
MK 3           C      
MK 5           E      
Stator material Nitrile             A    
EBDM             E    
High nitrile             J    
Viton             R    
Seal type Mechanical seal               M  
Packed gland               P  
Build Standard                 1
Example   L V 8 P 3 A R M 1

Dimensions (mm)

Drive Pump model      
code power kW ref. A B C
Geared motor LY2 0,37 DA 803 323 168
LW4 0,37 DA 803 323 168
LV8 0,37 DB 863 323 168
LV8 0,37 DY 932 332 225
LV8 0,55 DA 940 340 178
LV8 0,55 DY 957 357 225
LV8 0,37 DY 998 398 225
LT9 1,10 DY 932 332 225
LT9 0,37 DZ 932 332 225
LT9 0,55 DA 940 340 178
LT9 0,55 DB 940 340 178
LT9 0,55 DY 957 357 225
LT9 1,10 DY 998 398 225
LT9 1,10 DZ 998 398 225
Variable speed LY2 0,37 EA/EC 937 457 306
LY2 0,55 EB/ED 937 457 306
LW4 0,37 EA/EC 937 457 306
LW4 0,55 EB/ED 937 457 306
LV8 0,37 EA/EC 1027 487 340
LV8 0,55 EB/ED 1027 487 340
LT9 0,37 EA/EC 1027 487 340
LT9 0,55 EB/ED 1027 487 340

En