Submerged motor pump SMP 34
Engineered for high efficiency, reliability and low maintenance.
Submerged motor pump SMP 34Submerged motor pump SMP 34
Overview
of SMP 34



Up to 20,000 hours of reliable performance for critical cryogenic operations.

Built on expertise earned through the engineering of more than 11,000 submerged motor pumps, the SMP 34 is designed for operators who cannot afford unexpected downtime.

Its robust rotodynamic design, active thrust balancing system, heavy-duty ceramic bearings, and particle-resistant wear components work together to extend equipment life and reduce maintenance frequency.

Years of proven performance with submerged motor pumps
60+
Minimum mean time between overhaul
20,000hours
Reduced downtime
30%



// The SMP 34 has been engineered and rigorously tested to deliver exceptional reliability, performance, and safety for the most demanding applications. //
avatar
Emile Bado
President
Cryogenic Pumps & Expanders Business Unit
Features and
benefits

The pump's sealless submerged construction eliminates common leakage concerns while improving operational safety.


With a mean time between overhaul (MTBO) of up to 20,000 hours, the SMP 34 delivers dependable performance across LNG, hydrogen, ammonia, and industrial gas applications where reliability directly impacts productivity and profitability.

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Engineered to improve efficiency at every level
Maximizes uptime and reduces maintenance frequency for critical cryogenic operations
Extends bearing life and improves long-term reliability
Reduces maintenance time by up to 30% and simplifies overhauls
Eliminates shaft seal leakage concerns and improves operational safety
Reduces structural requirements, installation costs, and maintenance handling effort
Simplifies servicing, spare parts management, and lifecycle support
Adapts to a wide variety of facility layouts and operating requirements
Supports emerging hydrogen infrastructure and future clean-energy projects



Prioritizing
efficiency

Higher hydraulic efficiency lowers operating costs across the entire lifecycle.

The SMP 34 benefits from a next-generation hydraulic design featuring optimized impellers, radial diffusers, low-NPSH inducer technology, and precision-machined flow paths. Together, these innovations deliver improved hydraulic efficiency compared with previous generations while enhancing stability across a wider operating range.

Reduced power consumption translates into meaningful long-term energy savings, especially in continuously operating terminals, fuel supply systems, and storage transfer applications. Improved hydraulic performance also supports higher throughput while maintaining stable operation under demanding cryogenic conditions.

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Faster
maintenance

Simplified maintenance to minimize downtime.

When maintenance is required, the SMP 34’s standardized, lightweight, compact construction - paired with a quick electrical disconnect and the impeller’s quick locking assemblies – make servicing fast and efficient.

The result is minimized downtime, lower maintenance costs and operations back online sooner.

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Why customers choose Nikkiso
Decades of cryogenic pump leadership with 20,000+ fully submerged motor pumps delivered
Global service network with rapid response at major Asian and European yards
Proven SMP and HP/LP fuel systems integrated on LNG carriers, LNG bunkering vessels, and dual-fuel vessels
Condition monitoring and health dashboards to extend MTBR
SMP 34
specifications
Flow range
gpm
1-1,600
m3/hr
0.2-365
LH2 kg/hr
15-25,000
NPSHR
feet
from 0.5
meter
from 0.15
Differential head
feet
50-9,000
meter
15-2,700
Pump design rating
hp
3.35-402
kw
2.5-300
Speed range
rpm
2,000-10,000



Submerged
cryogenic pumps
Want to know more?
If you want to find out more about how we can give you the edge, simply complete the inquiry form and one of our experts in the product or solution you need will get in contact with you.
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