Low Maintenance Costs for Grundfos SP

 The customer benefit that drives down your Cost of Ownership
part-2

5.Durability with Stainless Steel

• Standard version for drinking water
• N-version for slightly aggressive saline water
• R-version for sea water
• Zinc anode protection for sea water and in harbours
• Recycling

6. Unique bearing system

• Replaceable bearings and neck rings
• Unique octagonally shaped bearings with high velocity sand flush channels reduce abrasive wear
• Viton version for oil
• Hard rubber version for sand

7.Priming Screw

• Uniquely designed screw and impeller for priming the pump
• Protection against dry-running

8. Long Service Intervals

• Maximum resistance against corrosion and abrasion
• Advanced design and construction
• Best materials chosen
• Pump and motor protection feature

Gundfos Submersible Pump SP : Low Maintenance Costs

Gundfos Submersible Pump SP : Low Maintenance Costs - part 1
The customer benefit that drives down your Cost of Ownership

1. Water Lubricated Bearings

• SP ensures low purification costs
• No contamination risk from materials
• SP protects the water quality

  Durability with stainless steel
Standard version for drinking water
N-version for slightly aggressive saline water
R-version for sea water
Zinc anode protection for sea water and in harbours
Recycling


2. Maintenance-Friendly Design

• Quick and cost effective service
• Smooth surface - cleaning is often sufficient
• Replace only rubber wear parts
• Low weight

3. Sealed Top Bearings 

•  High resistance against sand and other abrasive particles
• Trouble free operation
• Extended operation period

4.Replaceable Wear Rings

Replace wear parts at service and thus maintain the best pump effenciency








to be contiued ...part2

Grundfos Submersible Pump : SP Series - part 1

The Grundfos SP Product Range :

• Wide and complete range
• The only complete range of all stainlesssteel submersibles
•  50 Hz and 60 Hz versions

The Customer Benefit that Drives Down Your Cost of Ownership

1.High pump efficiency :

• Reduced energy consumption
• High effenciency is more important than the purchase price
• Example:Water capacity: 400 m³/hHead: 80 m.Operation time: 12 h/day, 10 yearsEnergy price: USD 0.075 per kWh. Approx. saving by converting to a pump with 10% higher effenciency: 800,000 kWh, corresponding to USD 60,000

2.Reduced impeller diameters : 

• Specific duty points
•  Motor size match
•  We recommend:  
• Use full-size impellers
• Change flow/operation hours

to be continued.... part 2

Grundfos Pressure Boosting : What’s NEW in Booster system Controls ??

 

We put the Brain into the control !! 

Grundfos Pressure Boosting : Purpose

 Series : 2

Grundfos Pressure Boosting

• Adjust speed i.e. performance to varying demand
• Energy savings
• Laws of affinity
• Controlled ramp-up and ramp-down of pumps
• Soft start
• Lenient on pipe net

Affinity law; example reduce speed 25 %
75 % speed = 75 % flow
75 % speed = 56 % Head
75 % speed = 42 % Energy

Grundfos Pressure Boosting  Grundfos Booster Pump

Grundfos : Pressure Boosting

Serie :1
Purpose of pressure booster system :

1.Adapt performance to variations in demand

• Maintain a constant pressure, level or temperature
• Smooth and controlled performance ramp up and down
• Stop pumps at zero flow
• Avoid unnecessary energy consumption, wear and heating up the water
• Secure optimum comfort level

2.Secure back-up capacity

• Pump failure                                                  

3. Not enough capacity with only one pump

    Example:Consumption profile Office building 24 hours :

to be contiued : Serie : 2

ALDOS Dosing Pump >> DDI 222

ALDOS Dosing Pump >>  DDI 222

• Digital dosing up to 150 l/h with direct input of the dosing rate

• Drastic reduction of variants and spare parts: 1 motor, 1 gear and 2 dosing head sizes are sufficient for the complete series

• Pump overpressure control:  digital input of the maximal backpressure allowed, if it is exceeded, the pump shuts down

• Easy dosing of high viscous media 

Diagram Capacity

DDI 222 Series with Flow Monitor
The unique digital dosing control

Dosing malfunctions are immediately detected and registered, even in very small dosing flows
Control of the system excess pressure on the pressure side: just input the maximum backpressure allowed in the dosing head, if this pressure is exceeded, the pump shuts down.

The average pressure in the dosing head is continuously measured and can be easily queried at the touch of a button.

GRUNDFOS CHJ : Multistage Jet Pump

One of the most popular Multistage Jet Pump with the Impeller Stainless Steel is Grundfos CHJ.
For details Click Here



Grundfos Domestic Pump CHJ JD Basic

Domestic Pump : Grundfos JD Basic

 Domestic Pump : Grundfos JD Basic
 
For more information about these pumps please click here




Grundfos JD Basic