Grundfos CR5-10 Vertical Multistage In-Line Pump

The Grundfos CR5-10 vertical multistage in-line pump is one of the most widely deployed water pressurisation pumps in Saudi Arabia, forming the backbone of municipal water supply infrastructure operated by the National Water Company (NWC) and the Saline Water Conversion Corporation (SWCC) across the Kingdom. The CR5-10 A-A-A-E-HQQE configuration delivers 5 m³/h nominal flow at 102.5 m head through ten precision-stacked impeller stages manufactured from AISI 316 stainless steel, making it equally suited to potable water, hot water circulation, and light chemical duties. Its in-line design — with suction and discharge ports on the same centreline — eliminates the need for pipe bends at the pump connection, reducing both installation space and hydraulic losses in tight plant room layouts common in Saudi residential towers and industrial facilities.

The CR suffix HQQE denotes a high-efficiency motor with a carbon/EPDM shaft seal on the front stage and an EPDM O-ring cartridge seal on subsequent stages, a combination that has proven leak-free performance over years of continuous duty on Saudi Aramco agricultural water supply systems at Haradh and Al-Qatif. The pump casing material is cast iron with stainless steel impellers and guide vanes, achieving IE3 motor efficiency class as standard and supporting IE5 motor upgrades via the CRE intelligent pump variant. The modular construction — impeller stages, shaft, and mechanical seals are all individually replaceable without removing the pump from the pipeline — minimises planned maintenance downtime and reduces total cost of ownership over a 20-year service life.

In the context of NEOM's water infrastructure, Grundfos CR multistage pumps are specified for post-treatment pressurisation duties downstream of the NEOM desalination plant, where their ability to handle low-salinity permeate at pressures up to 16 bar ensures reliable delivery to distribution networks across the mountainous Tabuk terrain. SWCC drinking water treatment stations across the Kingdom — from the large reverse osmosis plants in Jubail and Yanbu to the smaller brackish water treatment units in inland cities — rely on CR multistage pump arrays for inter-stage pressurisation, permeate collection, and product water transfer. The pump's IE3/IE4-rated motor, combined with frequency inverter compatibility across its entire speed range (50–100 Hz), means the CR5-10 integrates seamlessly with ABB, Danfoss, or Siemens variable frequency drives in energy-managed pumping systems.

Razz Middle East maintains local stock of the Grundfos CR5 range including the CR5-10 in Riyadh, with rapid supply capability to all major Saudi cities including Jeddah, Dammam, Al Khobar, Jubail, and Yanbu. Our engineers provide technical sizing support using Grundfos Product Centre software, ensuring the correct impeller trim, motor kW, and seal material are selected for each application. We offer commissioning services, preventive maintenance contracts, and genuine Grundfos spare parts — including mechanical seal cartridges, impeller replacement kits, and motor bearing sets — all held in-kingdom to minimise lead times on critical infrastructure repairs.