Industrial Progressive Cavity Pump

Our range of Diamond Series Progressive Cavity Pumps is characterised by a modular design covering numerous models and sizes, enabling capacities up to 110 m³/hr and discharge pressures up to 48 Bar.

The Diamond Series was designed and built with high modularity in mind. This means that each element of the pump can be specifically selected based on the application requirements. So, even if the product-use varies over time, the product can be adapted and upgraded to renewed process specifications. As a result, a plethora of combined options and accessories enable progressive cavity pumps that can be easily tailored to almost any site requirement.

The JN, DN and FN models are an ideal solution for use across the industrial sector in pumping a vast range of fluids. Each pump in this series offers reliability, high performance capabilities and flexibility across a number of applications. Designed according to the strictest standards, they comply with the requirements of standard API 676 typically used in the offshore oil & gas industries, which are synonymous with high performance, reliability and robust design.

These pumps are suited to pumping viscous and non-viscous products, with or without solids of any nature.

All JN, DN & FN models can be ATEX certified upon request.

DN Model

The drive is directly coupled to the pump via a flange, offering superior cost-effectiveness and compactness. This reduces installation costs and simplifies maintenance, while the hydraulic stresses supported by the drive make it a popular choice for industrial applications The DN model is the basis for which all pumps within the close-coupled series are routed. Robust cast casings characterise them in numerous materials, large inspection ports, multiple sealing and connection options, and a wide array of stator and rotor materials.

JN Model

The drive is connected to the free bare shaft inlet via a flexible coupling, with the bearings absorbing forces to ensure high load resistance. This modular bearing unit is adaptable to the DN model, making it ideal for superior performance and durability

FN Model

The drive is connected to the pump via a flange of the modular bearing unit. This versatile solution is compatible with gearboxes, hydraulic, and pneumatic motors, ensuring simplicity, compactness, total reversibility, and higher bearing unit performance

It is also more suited to high pressure and high viscosity applications when compared with the DN Series. The JN Series requires a larger installation space, and DN Series units can be upgraded to JN Series units thanks to the modular design of the Bearing Lantern Bracket, which can be simply plugged onto the drive side of the DN Series.

JN Progressive Cavity Pumps can be manufactured from a range of materials, and boast features such as:

• Large inspection ports
• Numerous sealing & connection options
• A wide array of stator & rotor materials

• Compliance: CE-compliant and ATEX-rated for use in hazardous environments
• Self-Priming: The hydraulic parts of these Progressive Cavity Pumps enable excellent self-priming (up to 7m)
• Patented Pin Joint: The pin-type joint, the ‘heart’ of the single screw pump, offers superior reliability and reduced maintenance costs. Its compact design enables the subdivision of axial loads and torque in different elements, while replacement of worn parts remains cost-effective, thanks to the wear-resistant bushes in critical zones. Additionally, the pin can be hydraulically balanced to withstand pressures up to 12 Bar in the pump casing
• Base Plates: Thick and robust base plates, available in Carbon Steel or Stainless Steel, ensure strength and stability. Options include trolley-mounted versions, anti-vibration housing, or skids, meeting API676 standards
• Materials: Product-contact components are available in various materials. From Cast Iron to Stainless Steel (AISI 316L and 304), Duplex, and Super Duplex. In Cast Iron executions, the rotating parts are manufactured in Stainless Steel AISI 420, or AISI 316l/304 on request
• Low Pulsating Flows: Very low tensional stress and pulsating flows with minimised centrifugal effects due to low operating speeds and predominantly axial pump development
• Shaft Sealing: Multiple sealing systems can be installed, including mechanical seals, single outer mechanical seals, double mechanical seals, and packing seals, all of which are interchangeable on the standard pump, allowing for versatility in different operating conditions
• Modularity: This range follows a modular concept in every characteristic, including hydraulic parts, casing, seals, base plates, housing, and drive shafts. Each component can be manufactured in various executions without altering the existing structure
• Motorisations: All drives installed on this range undergo extensive testing for reliable performance. Both electric and hydraulic motors are available, with reducers and variators featuring specific characteristics in terms of strength, bearing size, and gear quality
• Efficiency: Greater operational efficiency thanks to optimal volumetric yield even at high pressures and minimal consumption
• Maintenance: The joint bushes facilitate replacement without the need to replace shafts and rotors, resulting in significantly reduced maintenance costs that ensure the pumps full life cycle cost remains highly competitive