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KOS Double-piston pump with S-transfer tube

In the KOS series, the intake (for connection of the delivery line) and the delivery cylinders are connected by an S-transfer tube. This enables a free-flowing conveyance of the material without the use of valves. Foreign bodies up to 2/3 of the size of the discharge outlet can be conveyed without any issue.

The KOS pump is particularly suitable for conveying highly viscous sludge and other material with a high proportion of extraneous material. The main fields of application of the KOS are with materials which present the most extreme requirements, such as dewatered sludge containing solids, oil sludge, high- viscosity solids and so on. For extreme applications, a wide range of task-specific components and functions are available from Putzmeister. The pump’s simple design and the few wear parts offers a very robust, low maintenance pump with low operating costs.

KOS Double Piston Pump With S-transfer tube

Apt for conveying highly viscous sludge and other material

HSP Piston Pump with Seat Valves

Used for arduous applications

HSP Piston pump with seat valves

The seat valve pump is used for arduous applications. The HSP series is used with paste-like and highly viscous material with a low content of foreign bodies and small particle sizes (< 5mm).

Precise sealing of the valves means that extremely high pumping pressures can be achieved. The principle behind the design of the hydraulic and pumping pistons is the same as in the Putzmeister KOS and KOV series. This ensures maximum reliability and availability.

Two special features of the Putzmeister design are that not only is it a simple matter to replace the valves but the design also means a long service life for all wearing parts. Valves and valve seatings are made of highly wear-resistant steels and can be used at either end. This doubles their service life. Valves can be easily replaced without dismantling the delivery lines.

A pulsation-free conveyance can be achieved with the PCF system (Pressure Constant Flow, optional). All of the familiar Putzmeister options and variations (ex-protection, materials) are available with the HSP series on request as well.

HSP Piston Pump with Seat Valves

Used for arduous applications

KOV Piston pump with ball valves

The KOV series is characterized by its straightforward design and high reliability. The suction and delivery cylinders are connected by passively operated balls.

The valves are passively operated, which makes it an inexpensive pump with maximum availability. There are no issues or complications when pumping fine-grained mortar and low-consistency slurries, even when they contain foreign bodies up to 10mm in size.

Depending on the specific individual case, the balls and valve seats can be supplied in different materials and coatings. A maintenance aperture allows an easy and rapid replacement of the ball valves.

KOV Piston Pump With Ball Valves

Known for its straightforward design and high reliability

Silos & Sliding Frames

Designed to meet the requirements of 24/7 operations

Silos & Sliding frames

Putzmeister silos have been designed especially for highly dewatered and viscous sludge.

Ladder systems / discharge systems for round silo

Depending on your application, the sliding frame can take the form of a rectangular silo discharge system (ladder system) / PDSL or a round silo discharge system / PDSF. The ladder system with multiple parallel sliding frames is particularly suitable for wide or long receiving bunkers. This ensures an efficient transmission of force and increases the availability of the system thanks to the redundancy. The product range includes silos and bunkers from 10m³ to 1,000m³ for loading trucks and for feeding sludges to solids pumps and their onward conveyance.

Material is discharged from the silos by means of specially adapted screw conveyors, with a lateral or central discharge. If several end users have to be supplied, multiple discharge augers can be used.

Concrete silo

As an alternative to steel silos the receiving bunkers and sometimes the storage silo can be made of concrete. Putzmeister designs and delivers in these cases the sliding frame technology and discharge screws as well as the special concrete embedment parts.

Sliding frame systems

The Putzmeister sliding frame system has been designed especially to meet the requirements of 24/7 operation. Thanks to modern Finite Element Analysis and proven Putzmeister hydraulic components the sliding frame’s design, as well as its service life is optimized.

Sliding frame system PDL/PDF:

One important feature is the space-saving design achieved by integrating the sliding frame piston rod into the silo base tunnel. The piston seal used in the high pressure pumps reliably prevents the sludge from escaping.

Sliding frame system PDSL/PDSF:

One fundamental advantage of this variant is the simplified design and simple method of sealing the piston rod via a packing box to reliably prevent sludge from escaping.

Silos & Sliding Frames

Designed to meet the requirements of 24/7 operations

Power pack units

Power pack units are the heart of every piston pump. These power packs have proved their effectiveness more than 10,000 times with concrete pumps and now they power up industrial pumps that convey the material.

Depending on the quantity of oil needed, an open or closed oil-circuit can be used. The closed oil-circuit is used when reaching large delivery capacities, which means considerable cost-savings. The oil-circuits are designed for hydraulic pressures of up to 300 bar. This equals delivery capacities of up to 150 bar, for a short time up to 160 bar.

Power Pack Units

Extremely effective power source for concrete pumps