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Lifejacket Inflation Systems Explained

Spinlock Deckvest lifejackets use a range of inflation systems.

Watch the video below for detailed information on Spinlock inflation systems.


Deckvest VITO 
DW-RAH/V170
The Deckvest VITO lifejacket harness uses a Hammar Hydrostatic pressure system. 

Deckvest 5D
DW-RAK/E170
DW-RAK/E275

The Deckvest 5D lifejacket harness uses a Pro Sensor (Pre-October 2018) or Pro Sensor Elite (Post October 2018) firing system. 

Deckvest 5D HammarⓇ (product discontinued, re-arming kits still supported.)
DW-RAH/150
DW-RAH/275


Deckvest LITE & LITE+
DW-RAK
The Deckvest LITE lifejacket uses a water activated UML Mk5 paper coil inflation system. 

Deckvest LITE USCG
DW-RAR/33G
The USCG Approved Deckvest LITE (available to purchase in USA only) uses the water activated Halkey Roberts Alpha Auto Inflator.

Deckvest CENTO 
DW-RAK/100
The Deckvest CENTO junior lifejacket harness uses a water activated UML Mk5 paper coil inflation system.

ALTO Belt Pack
DW-CYD16
The ALTO uses a 16g cylinder and manual Halkey Roberts inflation system.

DURO SOLAS
DW-RAK/275
The Deckvest SOLAS 275 twin chamber lifejacket uses two UML Mk5 paper coil inflation systems. The SOLAS 275 is fitted with 2 inflation systems. You may require 2 x 60g cylinders and 2 x firing caps.

DURO +
DW-RAK
The DURO+ lifejacket harness is fitted with the Pro-Sensor/Pro-Sensor Elite

DURO
DW-RAK (MK5i and Pro Sensor Pre-October 2018)
DW-RAK/E170 (Pro Sensor Elite Post-October 2018) 
DW-RAK/275

The DURO lifejacket uses a water activated UML Mk5 paper coil inflation system. UML MK5i is fitted as standard. The Pro-Sensor/Pro-Sensor Elite is available as an upgrade on lifejacket purchase, please check which model you have.


Mk5 operating system

Lifejacket Inflation Systems Explained

UML Mk5 Inflator 

This is a water sensitive activation system that uses a compressed paper capsule which dissolves when wet which then releases a spring to puncture the CO2 cylinder.

The cap is designed so that only water flowing upwards through the unit will cause it to activate. Water, spray and rain running down the jacket will not cause activation. 




Pro sensor operating system


UML Pro Sensor Inflator 

This is a water sensitive activation system that uses a compressed paper capsule which dissolves when wet which then releases a spring to puncture the CO2 cylinder.

The cap is designed so that only water flowing upwards through the unit will cause it to activate. Water, spray and rain running down the jacket will not cause activation.

The Pro Sensor has two indicators that show the status of the CO2 cylinder and firing head.

The UML Pro Sensor is a very reliable system which is easy to check and re-arm. It is also easy to convert to manual firing only. Re-arming kits for this inflation system are stocked by most marine stores.

3 year expiry date on firing head from manufacture. 



Hammar operating system

HammarⓇ Hydrostatic Inflator

The HammarⓇ inflation system is activated by water pressure and will not inflate until the cap is approximately 10cm underwater. 

This system is designed for use in more extreme conditions and extended offshore sailing.

The benefit of the HammarⓇ system is that the jacket cannot accidentally inflate from being wet with rain and sea spray.

The unit has a single indicator to show if armed, and has a 5 year expiry date.

Delayed inflation can be caused if full immersion of the firing head is delayed by buoyant foul weather clothing.


Hr firing head 6 x 4



USCG APPROVED

Halkey Roberts Alpha Auto Inflator

The USCG Approved Deckvest LITE uses a water activated Halkey Roberts Alpha Auto Inflator that is is designed so that only water flowing upwards through the unit will cause it to activate. Water, spray and rain running down the jacket will not cause activation.