Layout
Vertical, with diagonal (VS1) or axial (VS3) flow, with a suction funnel immersed in the pumped liquid, or with a stub connected with an expansion joint to the inlet channel.
The pumped liquid flows through the hydraulic unit and then through a vertical pipe column to the pump outlet elbow along a shaft guided in radial plain bearings (shells) lubricated with the pumped liquid. The thrust forces are transmitted by an oil-lubricated, spherical or Michell type thrust bearing.
parameters
Capacity: Q = up to 45000 m3/h
Lifting height: H = up to 150 m
Design pressure: p = up to 16 bar at t = 20 °C
Temperature: t up to 60 °C
Discharge ports: Dn = from 150 mm to 2000 mm
standards
API 610 / ISO 13709 (latest editions)
ATEX Directive 2014/34/EU
ANSI / ASME (#75) or DIN / EN (PN6; PN10; PN16) – connection ports
API682 (latest edition) – mechanical seals
Certifications
API 610 / ISO 13709
last editions
ANSI/ASME (#75) or DIN/EN (PN6; PN10; PN16)
connection stubs
API682 (latest edit)
mechanical seals
ATEX Directive
2014/34 / EU
Product features
- They are certified by the National Institute of Hygiene: Possibility of pumping drinking water
- Very long pump life: Even several dozen years
- Hydraulics optimization: To maximize pump efficiency
- Shafts protected with protective sleeves: In the area of the stuffing box and plain bearings - optimal and long-lasting operation of bearings and mechanical seals
- Stuffing boxes: Compatible with seal cooperation according to API682, latest edition
- API 610 / ISO 13709: Full compliance with the latest edition of standards
- Possibility of adapting the pump to an existing pumping station: Pump length from about 1,5 meters to several meters
- Possibility of freely immersing the inlet hopper in the pumped medium: They do not require supplying the pumped liquid via a suction pipeline
- Possibility of starting the pump without first wetting the bearings: Dry start
Material versions
(materials according to API610 Table H.1)
|
API material class |
||||||
| Part name | S-5 | S-6 | S-8 | C-6 | A-8 | D-1 and D-2 |
| Pump body/interstage ring |
CS |
12%CR | 316L AUS | Duplex/Super Duplex | ||
| Rotor / vanes | CS | 12%Cr | AU$316 | 12%CR | 316L AUS | Duplex/Super Duplex |
| Sealing ring | 12% CR+H | 12% CR+H | 316 AUS+HF | 12% CR+H | 316L AUS +HF | Duplex / Super Duplex + H |
| Shaft | AISI 4140 | 12%CR | 316L AUS | 12%CR | Duplex | Duplex/Super Duplex |
| Bearing housing |
CS |
|||||
CI–Cast iron; CS–Cast steel/carbon steel; AISI 4140–alloy steel; 12% CR – cast steel/chrome steel; 316 AUS–Cast steel/austenitic steel >2% Mo; +H–hardened; +HF–hard faces
Possibility of making other alloys, including NACE-compliant materials.
Work field
Application examples
Wherever high performance at a relatively low lifting height is required:
- Main cooling water pumps in power plants and combined heat and power plants
- Drainage pumping stations
- Water intakes and waterworks
- Refineries.
