TeamTec BWMS uses direct biocide injection to treat ballast water – without filters. Available as Senza and Senza Compact, the system covers capacities from 50 to 3,750 m³/h, suited for vessels of all sizes. Type approvals from DNV, ABS, BV, RINA, CCS and USCG.
Simply better!
The TeamTec Senza BWMS is built on a single proven principle: filter-free biocide injection that delivers reliable, compliant ballast water treatment in any water condition. Available as Senza and Senza Compact, the range now covers 50 to 3,750 m³/h – from smaller coastal vessels to larger ocean-going ships.
Both models share the same core technology:
• Filter-free design – no clogging, backflushing or filter replacement
• Reliable operation in all water conditions – including high turbidity, sediment, mud, algae and ice-prone environments
• Direct biocide injection with standard, globally available chemicals
• Low power consumption and reduced OPEX
• Type approvals from DNV, ABS, BV, RINA, CCS and USCG
The Senza BWMS and Senza Compact BWMS are based on the same filter-free technology, optimized for different vessel segments.
The Senza handles capacities from 300 to 3,750 m³/h and is suited for mid-sized to larger vessels.
The Senza Compact is a streamlined single-skid version covering 50 to 300 m³/h – tailored for vessels in the 1,000–10,000 DWT range where space, power and budget constraints are greater.
Both models offer the same compliance credentials, the same chemical approach and the same operational simplicity.
Both TeamTec Senza BWMS models operate without inline filters, eliminating the clogging, backflushing and replacement cycles that drive up maintenance costs on conventional systems. The result is consistent, predictable operation regardless of water quality – in shallow coastal ports, high-turbidity areas or ice-prone waters.
• No filter maintenance – no cleaning, replacement or backflushing
• Handles demanding water conditions – high sediment, algae, mud and ice-prone environments without flow restrictions or reduction in flow rate
• Fewer failure points – simpler system architecture means fewer unplanned shutdowns during ballasting operations
Both TeamTec Senza BWMS models are designed for minimal power draw. The Senza Compact BWMS starts at just 1.9 kW, while the full Senza BWMS range keeps energy consumption well below comparable systems – without relying on energy-intensive electrolysis or UV lamps. This directly reduces fuel consumption and frees up onboard electrical capacity.
• Lower fuel consumption and OPEX – particularly valuable for vessels operating on tight margins
• Less load on ship power systems – simplifies retrofit integration across both models
• Supports EEDI Phase 3 compliance – contributes to the vessel's overall energy efficiency profile
With its compact design and minimal system complexity, the TeamTec Senza BWMS offers a small, configurable footprint that requires minimal changes to existing ballast piping. This enables easy integration in both newbuild and retrofit projects, reduces installation time, and even allows for installation during operation.
The Senza Compact is delivered as a single-skid unit, further reducing installation complexity for smaller vessels.
The TeamTec Senza BWMS uses a well-established direct biocide injection method to ensure effective and compliant ballast water treatment. Sodium hypochlorite is applied during ballasting, while sodium sulfite is used for neutralization during discharge. The use of standard, non-proprietary chemicals ensures reliable, predictable operation and global availability.
See our worldwide biocide supplier network →
Both models are designed to meet international regulatory requirements, including US Coast Guard (USCG) certification – ensuring global operability and long-term compliance.
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Compact
Senza Compact
Senza Compact
Performance
- Maximum power consumption: 1.9 kW
- Significantly lower than comparable systems
- Reduced fuel consumption and OPEX
Capacity & Range
- Optimized range: 50 – 300 m³/h
- Vessel size: ~1000 – 10,000 DWT
Key Benefits
- Ideal for smaller vessels
- Easy installation and operation
- Lower fuel consumption
- Proven Senza technology
Small & Large
Senza
Senza
Senza can be delivered in two different sizes, small and large.
"Holding time" for sea water and brackish water: 4 hrs.
"Holding time" for fresh water: 8 hrs.
Version Compact |
|
|---|---|
Capacity (m3/h) |
50-300 |
Power (kW) |
3 |
Biocide (l/h) |
5-37 |
Neutralizer (kg/h) |
0-13 |
Version S |
Version L |
|
|---|---|---|
Capacity (m3/h) |
225-1500 |
1500-3750 |
Power (kW) |
7 |
7 |
Biocide (l/h) |
28-187 |
187-469 |
Neutralizer (kg/h) |
6-43 |
43-107 |
Worldwide availability
Please click on the green markers for contact information.
The biocide suppliers marked on the map are a selection of suppliers we have contacted. The biocide is open source and there are a wide range of suppliers in most countries in addition to the suppliers on the list of companies that we have contacted.
Please contact our sales personnel for advise, or make direct contact with the biocide supplier in the area that is best for you!
Senza & Oceansaver
TeamTec keep things simple and efficient:
Quick response to your inquiries and orders
Comprehensive stock of spare parts
Advanced warehouse lifts ensure correct handling and accurate picking
Simple maintenance with tailored spare part kits
Upgrade and improvement kits
Efficient Delivery
DHL Express: Rapid and reliable
Air Freight: Swift air delivery
Road Transport: Easy, land-based logistics
Sea Freight: Cost-effective for larger shipments
Additional solutions to your standard spare parts order
One year
wear & tear kit
Senza One Year Kit
Senza One Year Kit
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Recommended
onboard kit
Senza Recommended Kit
Senza Recommended Kit
Recommended parts to minimize the risk of down-time of the ballast water management system.
Upgrade
& improvement kit
Oceansaver Upgrade Kit
Oceansaver Upgrade Kit
Sensor Installation
Implementation of level transmitter in gas trap
Please contact us for more details!
Recommended
onboard kit
Oceansaver Recommended Kit
Oceansaver Recommended Kit
Recommended parts to minimize the risk of down-time of the ballast water management system.
TeamTec holds a professional staff of service engineers ready to assist our customers worldwide.
Follow our guidelines for safe operations
TeamTec service engineers ensure that the new equipment is correctly installed; they also test all functions, alarms and safety devices to ensure reliable and safe operation.
By using one of our highly skilled service engineers, you ensure that the downtime of your equipment is reduced to a minimum.
The purpose of such a ship visit is to plan the installation or replacement of a ballast water management system, including space considerations.
Ensure that your BWMS remains in good working condition and properly maintained by annual service visits from our crew. A service agreement will include required training and updating of the crew who operates the BWMS onboard.
Having the BWMS in good working condition will simplify acceptance by local port authorities and help avoid claims.
TeamTec’s highly qualified and experienced engineers provide comprehensive training worldwide. The focus of the training is to give the operator and supervisory staff the theoretical and practical knowledge they need to operate and maintain your BWMS in the right way.
Chemicals used for Senza BWMS are standard type and available world wide!
Ballasting: Biocide (Sodium hypochlorite) – CAS# 7681-52-9
De-Ballasting: Netralizer (Sodium sulfite anhydrous) – CAS# 7757-83-7
No. You can buy them from any supplier around the world, as long as they guarantee that they can deliver according to the product datasheet.
This makes it very easy for all customers to negotiate their own best price with the supplier.
"Holding time" for brackish and sea water: 4 hrs.
"Holding time" for fresh water: 8 hrs.
No, Senza injects biocide (Sodium Hypochlorite) at 16 ppm. This concentration treats all kind of water and is in compliance with all demands.
As Senza is a filter-free system, there is no reduction in flow rate related to type of water.
Maximum 0,15 b because of the mixing unit.
Yes, Senza components can be installed at any available space!
The injection pump skid should be installed at the same level as the biocide tank or below, to secure a smooth feeding process.
Unlike electrochlorination systems that generate disinfectant onboard (which requires significant power), Senza BWMS uses externally supplied sodium hypochlorite, eliminating the need for energy-intensive and complex electrolysis. UV-based and filtration systems require continuous power for lamps and pumps, whereas Senza BWMS avoids these energy-heavy components. Since the system does not rely on high-pressure filtration or intensive pumping, it reduces strain on ballast pumps and lowers vessel fuel consumption. The system only requires energy for temperature-controlled storing of the biocide, dosing and monitoring, making it one of the most power-efficient BWMS solutions available.
