PUMPS FOR

CONCENTRATED
SOLAR POWER
 PUMPS FOR SOLAR POWER

Advanced pumping technology to

harness the power of the Sun
All around the world, energy consumption is increasing exponentially.
The escalating cost of fossil fuels, their decreasing availability, and
environmental concerns are forcing the power industry to find alternative
sources of energy.

Concentrated Solar Power is one of the fastest growing energy markets

in the world, as the Sun is the cleanest, most abundant renewable energy
source available. CSP plants convert sunlight into electricity though a series
of processes in which Ruhrpumpen pump technology plays an important Ruhrpumpen is your
role.
single source supplier
A pumping solution for every application ■■ Original Equipment
Ruhrpumpen’s experience includes the supply of pumps for critical ■■ Spare parts
applications found in CSP plants such as:
■■ Installation and startup
■■ Molten salt ■■ Circulating water support

■■ Heat transfer fluid ■■ Closed cooling and service water ■■ Repair and maintenance

■■ Boiler feed water ■■ Auxiliary services ■■ Engineering, training and

consulting
■■ Condensate extraction ■■ Fire protection
■■ Reverse engineering
■■

Benefits of our
pumps:
■■ Proven reliability
■■ High efficiency designs ensure
lowest operating cost
■■ Robust design allows for
long system life with minimal
maintenance
■■ Optimized total cost of
ownership
Commitment to quality
Our innovative solutions go beyond simple compliance with regulations and
standards, reducing risks and improving performance. Ruhrpumpen uses
state of the art manufacturing technology to ensure our products meet the
highest standards for quality and reliability.

Ruhrpumpen pump systems and units are certified by SAI Global and ANAB
EN ISO.

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Efficient, flexible and environmentally friendly pumping solutions for
concentrated solar power plants
Concentrated Solar Power plants (CSP) combine three major systems to produce electricity by collecting and
concentrating sunlight with mirrors and lenses in a Heat Transfer Fluid (HTF, e.g. synthetic oil, or molten salt).
Through a heat exchanger system, pumps move the HTF and heat water to generate steam. The power block then
produces electricity using a steam turbine and generator.

Concentrated solar power plants are subject to highly variable operation with daily stopping and starting,
large temperature differentials and corrosive environments. This requires heavy-duty pumps that can manage
temperatures as high as 1100 °F (600 °C). With special materials and design considerations, our HVN and J Line
pumps are the perfect choice when handling HTF; while our VLT model can pump molten salt in heat transfer and
thermal storage systems.

RP can supply pumps for CSP technologies such as:

■■ Linear fresnel reflectors ■■ Central tower

■■ Parabolic trough ■■ Beam down

Diagram of typical CSP plant with parabolic

trough and molten salt storage

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 PUMPS FOR SOLAR POWER

VLT / VCT Molten salt pump

Single or multi-stage, vertical pumps
CHARACTERISTICS AND DESIGN FEATURES
■■ HI design, cryogenic and API 610 latest edition (VS1) constructions available
■■ Low NPSH “shockless entry” first stage impeller
■■ Integral fabricated column support bearings
■■ One-piece shaft construction for shaft lengths up to 6 m (20 ft)
■■ Materials of construction for high temperatures

CHARACTERISTICS FOR MOLTEN SALT APPLICATIONS

■■ The head is fitted with an all steel rigid coupling
■■ High temperature packing with nitrogen injection
■■ Metal-to-metal rabbeted fits between all components
■■ Cast iron or stellite bearings, with shaft sleeves
■■ Bleed-off pipes
■■ Thrust balanced impellers to reduce downthrust and allow proper drainage
■■ STL LC or stainless steel depending on the temperature that will be reached
■■ Metal “C” rings used in lieu of O-rings
■■ Finite element thermal analysis is performed as standard for all MSP

OPERATING LIMITS OTHER APPLICATIONS

up to 45,000 gpm ■■ Condensate extraction service
Capacity
up to 9,500 m³/h ■■ Hydrocarbon processing
up to 4,900 ft ■■ Pipelines
Head
up to 1,494 m ■■ Municipal water systems
up to 2,020 psi
Pressure
up to 140 bar
up to 1,500 °F
Temperature
up to 815 °C

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HVN / J / JS / JD HTF pump
Radially split, single stage process pumps
CHARACTERISTICS AND DESIGN FEATURES
■■ Heavy-duty process design according to API 610 latest edition (BB2)
■■ Single stage, centerline mounted
■■ Double volute, centerline mounted casing
■■ Top-top nozzle arrangement, other arrangements on request
■■ Double suction, dynamically balanced enclosed impeller
■■ Materials of construction per API 610 (other materials on request)

OPERATING LIMITS OTHER APPLICATIONS

up to 30,000 gpm ■■ Heavy-duty, high-temperature
Capacity
up to 6,814 m³/h processes: charge, transfer,
up to 2,000 ft injection and utility booster
Head
up to 610 m
up to 1,813 psi
Pressure
up to 125 bar
up to 850 °F
Temperature
up to 450 °C

SCE HTF auxiliary pump

Horizontal, centerline mounted, single stage process pump
CHARACTERISTICS AND DESIGN FEATURES
■■ Heavy-duty process design according to API 610 latest edition (OH2)
■■ Single or double volute depending on size
■■ Single suction, enclosed impeller
■■ Designed for continuous duty and over 130 hydraulic combinations available
■■ Back pull-out design for ease of maintenance
■■ SCE-L for low flow applications available
■■ Materials of construction per API 610 (other materials on request)

OPERATING LIMITS OTHER APPLICATIONS

up to 14,000 gpm ■■ Petroleum refining, production
Capacity
up to 3,200 m³/h and distribution
up to 1,575 ft ■■ Hydrocarbon processing
Head
up to 480 m ■■ Heavy-duty chemical
up to 1,300 psi ■■ Industrial wastes
Pressure
up to 90 bar
-110 °F to 850 °F
Temperature
-80 °C to 450 °C

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 PUMPS FOR SOLAR POWER

GP Boiler feed water pump

Radially split, multi-stage, single case, ring-section type process pump
CHARACTERISTICS AND DESIGN FEATURES
■■ Non-API and API 610 latest edition (BB4) constructions available
■■ Modular design for various number of stages
■■ Available with balance drum or balance disk
■■ Low NPSH first stage design is available
■■ Single or double mechanical seals

OPERATING LIMITS OTHER APPLICATIONS

up to 4,000 gpm High-pressure and high-temperature
Capacity
up to 900 m³/hr applications across industries:
up to 13,120 ft ■■ Refining
Head ■■ Hydraulic decoking
up to 4,000 m
up to 6,000 psi
■■ Membrane feed pump in reverse
Pressure osmosis
up to 416 bar
up to 400 °F
Temperature
up to 205 °C

HSM Boiler feed water pump

Horizontal, 2 or 4 stage, split case pumps for high pressure applications
CHARACTERISTICS AND DESIGN FEATURES
■■ HI design (BB3)
■■ Two or four stage pump with double volute casing and side-side nozzle
arrangement
■■ Double suction, dynamically balanced enclosed impeller
■■ Cast iron as standard material (other materials on request)

OPERATING LIMITS OTHER APPLICATIONS

up to 2,000 gpm ■■ Circulating water service
Capacity
up to 454 m³/h ■■ Cooling towers
up to 2,200 ft ■■ Pipelines
Head
up to 670 m ■■ HVAC
up to 740 psi ■■ Dewatering
Pressure ■■ Municipal water systems
up to 51 bar
■■ Fire protection
up to 250 °F
Temperature
up to 121 °C

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VCT Circulating water pump
Single or multi-stage, mixed and radial flow circulating pumps
CHARACTERISTICS AND DESIGN FEATURES
■■ HI design and API 610 latest edition (VS1) constructions available
■■ Open, semi-open and enclosed impellers available according to pump model
■■ It can handle large volumes of liquid with relatively low heads (mixed flow
impeller)
■■ Packing as standard, mechanical seal is available
■■ Above or below ground discharge
■■ Optional pull-out design for ease of maintenance (for some large models)
■■ Cast iron as standard material (other materials on request)

OPERATING LIMITS OTHER APPLICATIONS

up to 300,000 gpm Mainly used for water applications:
Capacity
up to 68,137 m³/h ■■ Condensate extraction service
up to 330 ft ■■ Offshore facilities
Head ■■ Pipelines
up to 100 m
up to 285 psi
■■ Storm and flood water disposal
Pressure ■■ Water transportation, distribution
up to 20 bar
and treatment
-20 °F to 275 °F
Temperature
-30 °C to 135 °C

HSC / HSD / HSR / ZW Cooling water pump

Horizontal, single stage, split case pumps
CHARACTERISTICS AND DESIGN FEATURES
■■ HI design (BB1)
■■ High efficiency, foot mounted design
■■ Double suction, dynamically balanced enclosed impeller
■■ Mechanical or packing seal
■■ All HS/ZW pumps can be mounted vertically or horizontally
■■ Cast iron as standard material (other materials on request)

*See ZM line for API build

OPERATING LIMITS OTHER APPLICATIONS

up to 140,000 gpm ■■ Circulating water service
Capacity
up to 31,800 m³/h ■■ Pipelines
up to 2,210 ft ■■ HVAC
Head
up to 480 m ■■ Dewatering
up to 298 psi ■■ Municipal water systems
Pressure ■■ Fire protection
up to 20 bar
50 °F to 300 °F
Temperature
10 °C to 150 °C

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 PUMPS FOR SOLAR POWER

Reference project
Molten salt pumps for Solar Two Project
Solar Two Project, developed by Bechtel, was a 10 MW
Concentrated Thermal Solar Power Plant, with a molten
salt system, in California’s Mojave Desert.

The plant had a solar power tower sorrounded by

heliostats that reflect the sunlight to the top of the tower.
Molten salt was chosen as the thermal storage medium,
allowing energy to be stored in large tanks for use during
nighttime.

Ruhrpumpen provided its 700VLT pumps for the molten

salt applications required for this innovative project. Solar

Two was one of the first large scale demonstrations of CSP with molten salt storage and
validated the potential for modern day utility scale CSP technology.

PUMP DETAILS
Capacity 443 gpm (100 m³/h)

44 mcl (453 mca)

Head
186 kW, 288 °C

Speed 3550 RPM

Reference project
HTF pumps for ANDASOL III
ANDASOL III, developed by Solar Milennium Group, is a CSP plant in Spain with the
capacity of delivering electricity to 200,000 homes. It relies on our HVN 12x17 pump
as the heat transfer fluid pumps of synthetic oil through the parabolic troughs.
Due to the variable operation and daily starts and stops, along with temperatures
as high as 750°F (400°C) that needed to be met, Ruhrpumpen selected these HVN
pumps with casing and impeller fabricated in chrome steel. Moreover, the pumps
are equipped with cooling systems, seals, gauges, lubrication systems, and are
driven by electric motors and variable frequency drives.

PUMP DETAILS
Capacity 7,032 gpm (1,600 m³/h)

Head 951 ft (290 m)

Temperature up to 750 °F (400 °C)

Speed 3356 RPM

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Additional Ruhrpumpen pumps for
power generation services
RP MODEL DESCRIPTION SERVICE OPERATING LIMITS
Heating and cooling
Sealless process pump with magnetic Capacity up to 9,690 gpm (2,200 m³/h)
CRP-M drive acc. to DIN EN ISO 2858 & 15783
circuits
Head up to 1,080 ft (330 m)
Thermal oils

Heating and cooling

Heavy-duty process pump with Capacity up to 2,200 gpm (500 m³/h)
SCE-M magnetic drive acc. to API 685
circuits
Head up to 705 ft (215 m)
Thermal oils

CPP / CPO Single stage, end suction ANSI & ISO Auxiliary services Capacity up to 12,340 gpm (2,800 m³/h)
CRP process pumps sign (OH1) Fire protection Head up to 770 ft (235 m)

Single stage, end suction general Capacity up to 4,500 gpm (1,022 m³/h)
GSD service pump (OH0)
Auxiliary services
Head up to 400 ft (122 m)

Single stage, end suction pump in

Water auxiliary Capacity up to 61,700 gpm (14,000 m³/h)
SD / SDV horizontal and vertical installations
services Head up to 147 ft (45 m)
(OH3A)

Axially split, multi-stage, double volute Capacity up to 8,806 gpm (2,000 m³/h)
SM / SM-I casing process pump (BB3)
Boiler feed
Head up to 5,249 ft (1,600 m)

Axially split, multi-stage, diffuser Capacity up to 1,321 gpm (300 m³/h)

JTN casing process pump (BB3)
Boiler feed
Head up to 2,625 ft (800 m)

Radially split, multi-stage, double case, Capacity up to 6,160 gpm (1,400 m³/h)
A-LINE barrel type process pump (BB5)
Boiler feed
Head up to 13,776 ft (4,200 m)

Heavy-duty, double suction, single or

Capacity up to 80,000 gpm (18,170 m³/h)
DSV multi-stage, vertical centrifugal pump Cooling water
Head up to 800 ft (244 m)
(VS2)

Single casing, vertical sump pumps for Cooling water Capacity up to 8,500 gpm (1,931 m³/h)
VSP wet pit applications (VS4) Utility pump Head up to 425 ft (130 m)

Single stage, pitot tube pump for

Boiler feed Capacity up to 352 gpm (80 m³/h)
COMBITUBE low flow, high head applications
Reactor feed Head up to 4,856 ft (1,480 m)
(HI design)
Reciprocating plunger pumps in Capacity up to 1,611 gpm (366.5 m³/h)
Dosing pump
RDP triplex and quintuplex formats acc. to
Auxiliary services
Discharge pressure up to 14,500 psi
API 674 & ISO 13710 (1,000 bar)
Multi-stage, vertical turbine Small hydroelectric
Capacity up to 29,174 gpm (6,626 m³/h)
VTG generators (reverse running pumps) needs
Head up to 3,500 ft (1,067 m)
(VS6) Water distribution
Fire systems incorporate pumps,
drivers, control systems and pipework
in a single container. They can be skid Capacity up to 5,500 gpm (1,250 m³/h)
Pre-Packaged Fire Pump mounted, with or without enclosure Fire protection Head up to 670 ft (204 m)
Systems and supplied with electric motor or Pressure up to 355 psi (24 bar)
diesel engine. NFPA 20-850 with UL
and FM approved components.

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+65 years creating the pumping technology that moves our world
Ruhrpumpen is an innovative and efficient pump technology company that offers highly-engineered and standard
pumping solutions for the oil & gas, power generation, industrial, water and chemical markets. We offer a broad
range of centrifugal and reciprocating pumps that meet and exceed the requirements of the most demanding quality
specifications and industry standards such as API, ANSI, UL, FM, ISO and Hydraulic Institute.

Ruhrpumpen Plants
ARGENTINA, Buenos Aires
BRAZIL, Rio de Janeiro
CHINA, Changzhou
EGYPT, Suez
GERMANY, Witten Manufacturing plant &
service center
INDIA, Chennai
Service center
MEXICO, Monterrey
RUSSIA, Moscow
UK, Lancing
USA, Tulsa

February.19 www.ruhrpumpen.com