DN-MN SERIES
Disc Pumps
DN/MN SERIES
Features
The rotary hollow disc of the DN/MN series, in its roto-oscillatory movement, adheres to the inner and peripheral surface of the pump body, creating a suction vacuum that draws fluid in and pushes the fluid contained in the pump itself into the discharge.
Prinz 3P hollow disk pumps are suitable for conveying low, medium and high viscosity fluids even in the presence of suspended solid particles.
DESCRIPTION
3P Prinz DN/MN Series
These single- or double-impeller pumps allow the use of small pipes, valves, fittings, etc. compared to the high flow rate: they generate a continuous flow in the pipes, avoiding vibration and shaking of the system. The electric motor is usually coupled directly to the pump where, in the body itself, the oil-bath speed reducer has been made.
The hollow disc of the DN series, in its roto-oscillatory movement, adheres to the inner and peripheral surface of the pump body, creating a suction vacuum that draws fluid in and pushes the fluid contained in the pump itself into the discharge. Due to their special features, Prinz 3P hollow disk pumps are suitable for conveying low, medium and high viscosity fluids even in the presence of suspended solid particles.
GENERAL INFO.
Main features:
- Self-priming without the use of auxiliary devices
- Elasticity of the pumping disc
- Low RPM
- Constant capacity even during rotation reversal.
Yield Curve
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TECHNICAL SPECIFICATIONS
Specifications
| Pump type | Hollow disc volumetric | ||
|---|---|---|---|
| Series | DN-CN-MN | ||
| DN mouths from [mm] | 65 a 125 | ||
| Scope [m3/h] from | 0 a 90 | ||
| Prev. manometric Max [bar] | 10 bar [116 PSI] – option 12 bar [174 PSI] or 20 bar [290 PSI] | ||
| Temperature Max. [°C] | -20 — 280 | ||
| Rotational speed [RPM] | > 500 | ||
| Max Viscosity [cSt .] | 200,000 centistokes | ||
AREAS OF USE
| APPLICATIONS | |||||
| Chemical sector | Petrochemical sector | Food Sector | Paint and Mortar Industry | Naval and shipbuilding sector | Paper industry |
| concentrated acids & alkaline solutions | light & heavy hydrocarbons | vegetable and animal fats & oils | coloring & pigmented pastes | sludge, sewage, slime | acidic water |
| solvents | all types of oil | juices, pastes & syrups | thickeners | brackish water | stickers |
| resins | bitumen | sugars & molasses | additives | recycled oils | glues |
| plasticizers | emulsions | residues | sludge | ||
| glues | enamels | sludge | isocyanate | ||
| coloring & pigmented pastes | fuel oils | ||||
| thickeners | lye | ||||
| additives | |||||
SIZING CRITERIA
| 1) Choice of pump speed | ||||||
|---|---|---|---|---|---|---|
| By consulting the tables below, based on the viscosity of the fluid, determine the optimal revolutions the pump should make as a percentage of the standard RPM. If the viscosity is less than 30 cSt, the optimal rpm corresponds to the standard rpm. | ||||||
| PUMP TYPE. | Ø Piping | Spins Std. | PUMP TYPE. | Ø Piping | Spins Std. | |
| 3P – 25 M | 1″ | 320 | ||||
| 3P – 35 M | 1″ 1/4 | 320 | ||||
| 3P – 50 M | 2″ | 270 | ||||
| 3P – 60 M | 2″ 1/2 | 270 | ||||
| 3P – 80 M | 3″ | 270 | ||||
| 3P – 100 M | 4″ | 270 | 3P – 225 MN | 4″ | 320 | |
| 3P – 80 D | 4″ | 340 | ||||
| 3P – 100 D | 5″ | 300 | 3P – 225 DN | 5″ | 360 | |
| 3P – 125 D | 6″ | 255 | ||||
| 3P – 160 D | 8″ | 230 | ||||
| RPMs that the pump has to make as a % of the standard revolutions of the pump. | ||||||
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| Viscosity of the liquid in cSt | ||||||
| 2) Calculation of flow rate and power consumption |
|---|
| After finding the optimal RPM, go through the tables below to determine the pump size, effective flow rate, and power input as a function of total manometric head. |
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| 3) Selection of materials that make up the pump |
|---|
| All constituent components of both pumps and seals can be made of different materials, depending on the chemical and mechanical characteristics of the fluid to be pumped. Those normally employed are as follows: |
| Base: Cast Iron, Bronze, Cast Iron/Nickel |
| Body: Cast Iron, Bronze, Cast Iron/Nickel, Stainless Steel |
| Supports: Cast Iron, Bronze, Cast Iron/Nickel |
| Lid: Cast Iron, Bronze, Cast Iron/Nickel, Stainless Steel |
| Impeller: Steel, Stainless steel, Nickel-plated steel |
| Shaft: Steel, Stainless Steel, |
| Bushings: Bronze, Cast Iron Nickel |
| Shirt: Stainless Steel, Chrome Steel |
| Seals: Viton, PTFE |
| Sealing rotating ring: Graphite, Ceramic, Tungsten carbide |
| Stationary ring seal: Stainless Steel, Ceramic, Tungsten Carbide |
| Special executions can be provided upon request |
CONSTRUCTION DETAILS
| MATERIALS | |
|---|---|
| Enclosure | Trim and wet parts |
| Cast iron | Carbon steel |
| Stainless Steel | Stainless Steel |
| Duplex and Super Duplex | Duplex and Super Duplex |
| Inconel® | Inconel® |
| Hastelloy | Hastelloy |
| Nickel-aluminum bronze | Nickel-aluminum bronze |
| Monel K | |
| HVOF Spray Coated | |
| Notes: Other alloys upon request | |
| Certification | ||
| Products: | Electric Group: | |
| CE standard | CE and ATEX standards | |
| Upon request ATEX and/or API | UL and ATEX standards | |
| NEMA standard | ||
| Others on request (Diesel) | ||
| On components: | ||
| ISO EN 10204-2.1 | ||
| ISO EN 10204-2.2 | ||
| ISO EN 10204-3.1 | ||
| ISO EN 10204-3.2 | ||
| On Request |
| – Magnetic Guide |
| Total absence of any liquid leakage due to magnetic drag. Suitable for critical transportation |
| – Compliance with API standards |
| – High-pressure version (20 Barg) |
| – Custom casing to specifications |
| – High-performance and long-lasting mechanical seals and dual mechanical seals |
| – Executions with combinations of dual seals with flushing or recirculation in accordance with API PLAN requirements |
| – Special designs for low or high temperatures and/or critical environmental temperatures |
SUPPLY AND MATERIALS
The supply is not limited to pumps only
3P Prinz also provides:
- Skid or Custom Skid type mounting base
- Instrumentation
- On-skid piping with Valves
- Control system
- Auxiliary equipment
Executions and Special Materials
3P Prinz can produce the full range of products with special materials for the wet parts of pumps.
Starting from cast iron to special alloys, such as Inconel®, Hastelloy®, Alloy 20 or Duplex/Super Duplex.
Material selection arises from the service fluid, temperature, and surroundings.
The design life of a pump is due to the proper selection of materials.
BEFORE PLACING AN ORDER
Download the form.
Once filled out, email to: sales@3pprinz.com
