D SERIES.

HOLLOW ROTARY DISK PUMPS

Disc pumps
D SERIES.

Features

The rotary hollow disc of the D 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.

Especially suitable for the following industries:

Shipbuilding and shipping – Petrochemical and chemical – Food and beverage – Paper industry

This type of pump is suitable for conveying low, medium and high viscosity fluids even in the presence of suspended solid particles.

DESCRIPTION

3P Prinz D Series

These pumps, with double impellers, 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 D 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 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

TECHNICAL SPECIFICATIONS

Pump type	Hollow disc volumetric
Series	D
DN mouths from [mm]	100 a 200
Scope [m3/h] from	20 a 250
Prev. manometric Max [bar]	8 bar [116 PSI] – optional 12 bar [174 PSI] or 20 bar [290 PSI]
Temperature Max. [°C]	-20 > 280
Rotational speed [RPM]	Over 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.

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.

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.