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progressing cavity pumps | DIAMOND

Progressing Cavity Pumps H series

hopper pumps for industrial and environmental sectors

The Diamond Series with hopper an auger feed screw to directly convey the product to hydraulic part, are the ideal machines for pumping viscous and non-flowing, with a very high solids content.
DH ,JH and FH Series is the basic version with rectangular hopper and auger feed the hydraulics. The length is customizable depending on application. Suitable for pumping substances poorly flowing up to 18% of dry substance which does not tend to form a bridge. The DH, JN and FH series are distinguished for the type of fitting of the pump to the drive.

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Operating ranges

Flow rate

Up to 520m³/h (2290 US gpm)

Pressure

Up to 24 bar (348 psi)

Temperature

from -40°C up to 150°C

Applications

Discover the product's application characteristics Progressing Cavity Pumps H series

Biogas

Sludge Disposal (including Waste Transformation)

Wastewater Treatment and Sludge Processing

Chemical Industry

Construction & Cement Industry

Maritime and Naval Sector

Papermaking Industry

Tannery Industry

Onshore-Offshore Platforms

Models

m3/h - bar gpm - psi

Size	Model	QMAX 2 BAR [m³/h]	RPM MAX	P MAX [bar]
D020	1L1	4,9	1400	6
D020	05K2	2,5	1400	12
D020	025K4	0,7	800	24
D025	2L1	10	1400	6
D025	1K2	5,1	1400	12
05K4	05K4	1,5	800	24
D025	025K8	0,7	800	48
D030	4L1	14	1000	6
D030	2K2	7,2	1000	12
D030	1K4	2,9	800	24
D030	05K8	1,5	800	48
D040	10L1	22	800	6
D040	4K2	11,5	800	12
D040	2K4	4,2	600	24
D040	1K8	2,4	800	48
D040	16L1	32,5	800	6
D040	8K2	16,8	800	12
D040	4K2EL	11,5	800	18
D060	20L1	39,1	700	6
D060	10K2	17,2	600	12
D060	4K4	7,2	500	24
D060	2K8	4,2	600	48
D060	30L1	46	700	6
D060	16K2	21,5	600	12
D060	10K2EL	17,2	600	18
D120	40L1	65,5	600	6
D120	20K2	31	600	12
D120	10K4	11,7	400	24
D120	4K8	7,3	500	48
D120	60L1	82	500	6
D120	30K2	40,5	500	12
D120	20K2EL	31	600	18
D300	80L1	88	400	6
D300	40K2	45	400	12
D300	20K4	21	400	24
D300	10K8	11,7	400	48
D300	120L1	120	400	6
D300	60K2	64,5	400	12
D300	40K2EL	45	400	18
D400	160L1	161	400	6
D400	80K2	90	400	12
D400	40K4	45	400	24
D400	20K8	19,5	350	48
D400	240L1	261	400	6
D400	120K2	116	350	12
D400	80K2EL	90	400	18
D400	40K2E	45	400	24
D400	20K4E	19,5	350	48
D500	320L1	255	350	6
D500	160K2	142	350	12
D500	80K4	56	250	24
D500	40K8	26	250	48
D500	480L1	368	350	6
D500	240K2	185	350	12
D500	160K2EL	142	350	18
D500	80K2E	56	250	24
D500	40K4E	26	250	48
D600	640L1	540	350	6
D600	320K2	280	350	12
D600	160K4	101	250	24
D600	80K8	51	250	48
D600	960L1	802	350	6
D600	480K2	403	350	12
D6	320K2EL	280	350	18
D600	160K2E	142	250	24
D600	80K4E	56	250	48

Materials

Casing materials

Wide selection of cast iron, alloy, and stainless steel bodies, including corrosion-resistant options for harsh environments.

Coatings
On request, solutions such as fluoropolymers and ceramic coatings to ensure superior performance.

Seal Shaft Materials

Steel and special alloy materials with advanced coatings to ensure long durability and resistance, as well as advanced protective coatings such as ceramic oxides and tungsten carbide.

Optional for coupling rod
Joint protection
Coupling rod with feed screw
Anti-settling impeller
Balanced hydraulic joint
(For details, see the brochure constructive options, equipment and installations)

Materials of Rotors

Steel and special alloy materials with advanced coatings to ensure long-lasting durability and resistance.

Materials of Stators

We offer a wide selection of compound materials for stators, designed to ensure high performance and durability in diverse industrial environments.

Among the available options, we can provide elastomers and special materials, including food-grade compounds and high-performance solutions.

These solutions can be customized based on the specific needs of the customer and the operating conditions.

Connections

Flanges and threaded connections for various applications, including food-grade models and high-pressure environments.

Compliant with UNI, DIN, and ASME standards.

Sealing Systems

Various types of mechanical seals, both single and double, cartridge-style; also available with flushing solutions in accordance with API standards.

Bases

standard Base
API 676 Base
Base with anti-vibration housing (feet spacer)
Base with risers
Skid with lifting devices
Cart for industrial sector (trolley)
Cart for food grade and winery sector
(For details, see the brochure constructive options, equipment and installations)

Optional

Equipment and optional

Stator heating jacket
Temeprature probe for dry running protection (standard in the ATEX version)
Flow switch
Heating jacket for body pump
Stainless steel stator cover
Industrial flanged Bypass (or with threaded connection)
Quench Pot flushing
Stainless Steel Lantern
Hermetic lantern
Carter to protect the motorization
(For details, see the brochure constructive options, equipment and installations)

Features in detail

Robust standard 'D' lantern

Extremely robust supports, suitable for sustaining motor loads. Details

Rotating parts

made of stainless steel as standard, even for cast iron pumps Details

Rectangular hopper, in length customizable.

It can be realized in different metallurgies according to need Details

Conical inlet section

allows to convey the product direct to the suction Details

Discharge sections

are designed to minimize pressure losses. Details

Abrasion-resistant rotors and stators

allow for the pumping of highly viscous fluids with solid particles in suspension. Details

Patented pin joint

the core of the Diamond series pumps Details

Various sealing systems available, including:

Packing with or without flushing, Single mechanical seal with or without quench,Double mechanical seal in back-to-back or tandem configuration. Details

Connection via pins to the motor or bearing housing

This is the simplest maintenance solution and allows the pump to operate in reverse rotation. Details

J BEARING SUPPORT

Modular J bearing support Details

Support F

for connect stndard motorization shaft Details

1

Robust standard 'D' lantern

Extremely robust supports, suitable for sustaining motor loads.

The standard 'D' lantern bracket allows for direct connection of the drive unit.
2

Rotating parts

made of stainless steel as standard, even for cast iron pumps

Various metallurgies available depending on the application.
Different options for the drive shaft depending on requirements.
3

Rectangular hopper, in length customizable.

It can be realized in different metallurgies according to need

It’s made with thick layers to be extremely robust.
4

Conical inlet section

allows to convey the product direct to the suction

Suitable to pump viscous and solids products to the hydraulics
5

Discharge sections

are designed to minimize pressure losses.

Discharge sections are designed to minimize pressure losses.
The discharge nozzle can be manufactured in different metallurgies as required.
Available connections: UNI EN / DIN or ANSI.
6

Abrasion-resistant rotors and stators

allow for the pumping of highly viscous fluids with solid particles in suspension.

The rotor can be supplied in various base materials and can be heat-treated or coated to enhance durability.
Stators can be configured with various types of elastomers.
7

Patented pin joint

the core of the Diamond series pumps

It combines compactness and ease of maintenance with performance, reliability, and durability without compromise.
8

Various sealing systems available, including:

Packing with or without flushing, Single mechanical seal with or without quench,Double mechanical seal in back-to-back or tandem configuration.

Quench and double seals must be flushed according to API PLAN suitable for the process.
A wide range of seals compliant with ISO EN 12756 can also be installed to meet any application needs.
9

Connection via pins to the motor or bearing housing

This is the simplest maintenance solution and allows the pump to operate in reverse rotation.

The splash guard ring protects the motor shaft from corrosion, further facilitating maintenance.
10

J BEARING SUPPORT

Modular J bearing support

High-performance bearings ensuring maximum reliability
11

Support F

for connect stndard motorization shaft

The alternative with F support allows for the connection of reducers with standard output shafts while also improving performance.

Robust standard 'D' lantern

Extremely robust supports, suitable for sustaining motor loads.

The standard 'D' lantern bracket allows for direct connection of the drive unit.

Rotating parts

made of stainless steel as standard, even for cast iron pumps

Various metallurgies available depending on the application.
Different options for the drive shaft depending on requirements.

Rectangular hopper, in length customizable.

It can be realized in different metallurgies according to need

It’s made with thick layers to be extremely robust.

Conical inlet section

allows to convey the product direct to the suction

Suitable to pump viscous and solids products to the hydraulics

Discharge sections

are designed to minimize pressure losses.

Discharge sections are designed to minimize pressure losses.
The discharge nozzle can be manufactured in different metallurgies as required.
Available connections: UNI EN / DIN or ANSI.

Abrasion-resistant rotors and stators

allow for the pumping of highly viscous fluids with solid particles in suspension.

The rotor can be supplied in various base materials and can be heat-treated or coated to enhance durability.
Stators can be configured with various types of elastomers.

Patented pin joint

the core of the Diamond series pumps

It combines compactness and ease of maintenance with performance, reliability, and durability without compromise.

Various sealing systems available, including:

Packing with or without flushing, Single mechanical seal with or without quench,Double mechanical seal in back-to-back or tandem configuration.

Quench and double seals must be flushed according to API PLAN suitable for the process.
A wide range of seals compliant with ISO EN 12756 can also be installed to meet any application needs.

Connection via pins to the motor or bearing housing

This is the simplest maintenance solution and allows the pump to operate in reverse rotation.

The splash guard ring protects the motor shaft from corrosion, further facilitating maintenance.

J BEARING SUPPORT

Modular J bearing support

High-performance bearings ensuring maximum reliability

Support F

for connect stndard motorization shaft

The alternative with F support allows for the connection of reducers with standard output shafts while also improving performance.

Variants

DH Series

The motor is directly coupled to the pump by means of a flange. This solution is extremely cost-effective and compact, significantly reducing installation costs and simplifying maintenance. The forces generated by the hydraulic part are supported by the motor. Each motor used has been suitably selected according to strict technical parameters and has been subjected to numerous durability tests under heavy loads.

FH Series

The motor is directly coupled to the pump via the flange of the bearing support module. This solution is the most versatile as it allows the use of standard flanged gearboxes and output shaft, coupling with hydraulic or pneumatic motors, maintaining the simplicity and compactness of the classic monobloc solution while guaranteeing total reversibility and superior bearing support performance.
This bearing support module can be applied to the entire Diamond series and allows for quick maintenance of the motor drive. Therefore FH is synonymous with modularity and reliability with any type of motor.

JH Series

The solution represents the best solution in terms of performance and durability. All the forces generated by the pump are absorbed by the bearings in the support. These bearings have a very high load resistance. They are mounted with extreme precision on components of the highest quality. It is the best solution when you want to ensure maximum durability and reliability, while requiring larger installation spaces. The bearing holder designed by us is modular and can be installed later in a pump with monoblock holder of the DH series. Represents the state of the art in this type of installation.