Flow Rate
max. 1.800 m³/h
Differential Pressure
max. 40 bar
Temperature Range
-120 °C to +350 °C
Pressure Rating
max. PN 400
KEY FACTS
-
Design according to API 676, 3rd Edition
-
Wellenabdichtung über Gleitringdichtung, Wellendichtringe oder Stopfbuchspackung
-
Shaft Seal: Face Seal or Gland Packing
-
Mechanical Seals according API 610/682
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Modular Construction (Multi-Part-Casing)
-
Adaptive Feet with Centerline Mounting
DESIGN
- Single Volute Twin Screw Pump in Process or in Tank Farm Design
- Axial Split Modular Casing
- Pressure Limiting Valve using Klaus Union Valve Series Internals
- Centerline Mounting
- Bearing Bracket with Oil-Lubricated or Greased-for-Life Anti-Friction Bearings
- Spare parts are interchangeable with centrifugal pump series
- Mechanical Seals acc. EN 12756 or API 682 / ISO 21049 as per customer preferences
OPERATING RANGE
| Performance Range | |
| Flow Rate | Q= max. 1.800 m³/h |
| Differential Pressure | P= max. 40 bar |
| Viscosity | max. 100.000 mm²/s (cSt) |
Higher Flow Rates upon Request
| Pressure Ratings | |
| Standard Construction | PN 25 at +120 °C |
| Temperature Range | t= -120 °C to +350 °C |
| Pressure Rating | P= max. PN 400 |
Higher Pressure Ratings upon Request
TYPICAL APPLICATION
- Acids
- Lyes
- Hydrocarbons
- Bitumen / Asphalt
- Tar
- Fuel Oils (Light and Heavy)
- Polymers
- Aggressive, Explosive and Toxic Liquids
- Liquids Containing Solids
- High-Viscosity Liquids
CUSTOM MATERIALS
| Pump Casing | Cast Carbon Steel; Cast Stainless Steel; Duplex Stainless Steel; Super Duplex Stainless Steel |
| Liner | Cast Carbon Steel; Cast Stainless Steel; Duplex Stainless Steel; Super Duplex Stainless Steel; Wear Resistant Coating |
| Rotors | Carbon Steel, nitrated; Martensitic Stainless Steel, nitrated; Stainless Steel, hardened; Duplex Stainless Steel, hardened; Wear Resistant Coating |
| Shaft Seals | Standard Cartridge Seals depending on the actual operating conditions following ANSI B73.1 / API 610 / API 682 |
Upon Request, Klaus Union Screw Pumps, Series DSP-2C, can be supplied also in Hastelloy, Inconel, other High Nickel Alloys or Titanium.
DESIGN VARIANTS
The pumps are outfitted with a foot heating (H4) and/or a heat jacket in the bearing lantern (H2). Both can be realized either separately or in conjunction with a bypass line. Both heating systems are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C in the standard construction. They can also be used for cooling.
