SD – Close Coupled Pump
The Compact SD Progressive cavity pump is Primarily recognized for its Compact Space-saving design, It is constructed such that the drive unit is mounted directly onto the Pump Body without the need of any couplings. All ROTOMAC SD pumps can be used in almost all industrial sectors and suited for low-viscous to viscous media with and without solids.
Capacity : 0.1–150 m³/h
Pressure : ≤ 24 bar
Compact Footprint
Since the drive unit is mounted closely to the pump body without couplings the overall space requirement is lesser when compared to other pump types.
Easy maintenance
Simple maintenance thanks to quick-release Yoke Shaft connections between the Drive unit and Pump Yoke Shaft.
Low Pulsation
Gentle & even flow without dampeners or condensers – particularly suitable for sensitive pumping media.
Cost-efficient
Reduced material costs thanks to a design without bearing housing, couplings and extended baseplate.
Fits All
Available with various rotor/stator geometries and a wide range of different shaft seals – tailored to suit any conveying process.
Flexible installation options
Depending on the on-site conditions, installation is possible in a horizontal or vertical position, also can be offered with large Suction housing what can be rotated in any position of 90 Deg Intervals.
- Discharge Port:
Available with Gauge Connection, Flange Connections conforming to ISO, DIN & ANSI standards.
- Rotor:
Wear resistant and corrosion-resistant materials. Optionally with hard surface treatment.
- Conventional Geometry :
With Shorter Pitches the geometry is for high Pressure applications. - Extended Geometry:
With a Small rotor diameter and a long pitch, the Extended geometry attains lower surface velocities and extends the service life due to its large sealing line. - Stator:
The seal on both ends is molded as an integral part of the elastomeric stator. - Suction Housing:
With large cross section and designed for smooth flow conditions, with drain plug and connections for pressure/vacuum gauge. Flange connections in DIN or ANSI can be rotated in 90° increments. - Robust Cardan Type Joint:
Heavy Duty, Robust , Long Lasting Cardan Type Universal Joint , it can handle more load due to its inherent design. These joints offer a longer service life than the conventional Pin joint.
- Yoke Shaft:
Connects the drive shaft to the joint. With gland packing the plug-in shaft is used as a shaft protection sleeve. Upon request, it is available with wear resistant coating
- SHAFT SEALING:
Available in Gland Packing and also with Flushing lantern Ring , Single Mechanical seal as well as Double Mechanical seals - Close Coupled Drive Connection:
For easy dismantling of the pump and drive enabling quick replacement of the rotating parts and shaft seals. The yoke shaft pin secures the shaft connection to the drive and the Water Thrower protects the drive from contamination/gland leakage. - Body:
For connection of pump and drive and to secure the assembly to the baseplate or directly to the foundation.
- Drive:
Geared motors, variable speed drives or frequency controlled motors of all major manufacturers, directly flanged to the pump without additional couplings or guards. Covers made of stainless steel are available.
- Dry Run Protection:
Dry Run protection monitors the temperature of the stator and shots the pump down when the limit value is reached to protect the pump from dry running,
- Overpressure Protection:
The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached and protects the pump from increased wear and tear or piping damage. - Seal Support Systems:
We offer seal Flush, Quench, Barrier type support systems. barrier type systems protects the shaft sealing by selectively supplying barrier liquid. Also available with flow meter on request. - Retensioning Device:
With this device, a worn stator can be evenly readjusted at several points so that the clamping between the rotor and stator is once again optimal and the pump performance increases.
- Standard Baseplate:
Suited baseplate for mounting with geared motor, for standard applications , specialized features available as per custom requirements.
- Sealing Options
- Standard Gland Packing:
Universal choice for sealing the Gland area in the pump. Also available with grease or lantern ring to shut off the media flow. Can also be supplied with upstream labyrinth seal and additional flush connection or lubricating device. - Single Acting Mechanical Seal:
Universal standard mechanical seal for dosing, food applications and semi-submersible pumps for sealing of liquid from the Gland area in the pump. - Multiple Acting Mechanical Seal:
Mechanical seals arranged in a row. Available in “back-to-back”, “face-to-face” or “tandem” sequence. - Cartridge Mechanical Seal:
Ready-to-install pre-assembled units with supply connections and attachment brackets for quick replacement.
- Standard Gland Packing: