Flowserve DVSH-RO Between Bearings Pump - Axially Split, API, Single Case

Name: Flowserve DVSH-RO Between Bearings Pump - Axially Split, API, Single Case
Brand: Flowserve
SKU: flowserve-808

رقم القطعة: flowserve-808

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الوصف

Flowserve DVSH-RO single-stage, high-pressure membrane feed pumps are engineered to deliver high-efficiency operation and long-term reliability in heavy-duty seawater reverse osmosis (SWRO) processes. Based on the widely used DVSH ISO 13709/API 610 (BB1) pump, the DVSH-RO pump is configured to meet the specific performance demands of desalination processes. A side-by-side nozzle configuration and optimized hydraulics provide the best hydraulic fit to maximize operating efficiency and stability. Corrosion-resistant materials ensure long-term service life without degradation. The result is uncompromising reliability over a wide flow range. Features and benefits: - Double-suction impeller provides axial hydraulic thrust balance and is designed for maximum hydraulic efficiency with minimal NPSHR. It is dynamically balanced to assure vibration-free operation as per API/ISO requirements. - Double-volute, axially split casing design minimizes hydraulic radial forces in any condition down to the minimum flow, thereby reducing shaft deflection and increasing the life of bearings, seals and wear rings. - Heavy-duty shaft design ensures trouble-free performance by operating under the first critical speed. The large diameter and short bearing span minimize deflection. - Suction and discharge nozzles are cast in the lower casing half to permit pump disassembly without disturbing the piping. - Nozzles are designed to handle external forces and moments equal to or in excess of ISO 13709/API 610 specifications. - Renewable wear rings provide hydraulic stability and high-efficiency operation. They also ensure the thrust bearings are properly loaded. Optional laser-hardened or non-metallic wear rings are available. - Generously sized seal chambers ensure there is sufficient liquid around the seal faces for optimal flushing and cooling. - Seal chambers accept single cartridge-type mechanical seals as well as double or tandem cartridge-type designs.

المواصفات

Brand line	Flowserve
Materials	Super duplex (A890, Grade 5A; PREN ≥ 40); Optional Alloy 885 (PREN ≤ 40)
Operating Parameters	Frequency of 50 or 60 Hz; compatible with VFD applications; For extended range, please consult with our specialists.
Sizes	DN 350 and 400 (14 and 16 in)
Flows to	7,000 m³/h (30,820 gpm)
Temperatures to	45°C (113°F)
Pressures to	100 bar (1,450 psi)
Heads to	600 m (1,968 ft)