Water Sensitive Bobbin Replacement for Automatic Inflatable Life Jackets
Product Description:
This water sensitive bobbin is designed as a replacement part for automatic inflatable life jackets and compatible inflator systems. It is used in water-activated inflation mechanisms where the bobbin dissolves after submersion and helps trigger automatic CO₂ inflation.
Developed to match the Halkey-Roberts V80040-type bobbin format, it is commonly used with compatible automatic inflators, including listed HR V90000 (Type Alpha) systems and other matching inflator models. Users should always confirm inflator compatibility before purchase or installation.
For reliable servicing, the bobbin should be replaced at manufacturer-recommended intervals and checked more frequently in high temperature, high humidity or harsh storage conditions. This replacement part is suitable for maintenance teams, distributors and re-arming operations where bobbin-only replacement is required.
Correct installation is important. The bobbin should be fitted with the white pill facing the inflator cap and inserted smoothly in the correct orientation. Incorrect installation may affect inflator performance.
Key Features
- Water-activated bobbin replacement
- For automatic inflatable life jackets
- Compatible with V80040-type inflator format
- Suitable for servicing and re-arming use
- Yellow bobbin design
- Used in compatible automatic inflators
- Compact replacement safety component
Technical Specifications
The specifications below summarize the main compatibility and servicing information of the replacement bobbin.
| Item | Specification |
|---|---|
| Product Name | Water Sensitive Bobbin for Inflatable Life Jackets |
| Inflation Method | Automatic, water-activated |
| Activation Principle | Bobbin disintegrates in water to trigger firing pin |
| Compatible Reference | Halkey-Roberts V80040-type replacement |
| Compatible Inflators | HR auto inflators including V90000 (Type Alpha); also commonly listed for V85000 / V86000 families |
| Color | Yellow |
| Usage | Inflatable life jacket / inflatable PFD accessory |
| Service Note | Replace periodically; sooner in heat or humidity |
| Warranty | 1-year manufacturer warranty |
Typical applications:
Suitable for:
- Automatic inflatable life jackets
- Inflatable PFD vests
- Marine safety equipment servicing
- Re-arming and maintenance work
- Boating, sailing and fishing safety gear
How to Use
- Confirm your inflator model and required bobbin type.
- Open the inflator cap.
- Insert the bobbin with the white pill facing the cap.
- Reassemble the inflator according to the inflator instructions.
- Check the indicator status and record the service date.
- Store in a cool, dry place after servicing.
FAQ
1. What does a water sensitive bobbin do?
It is a water-activated part that dissolves when submerged and helps trigger automatic inflation in compatible inflator systems.
2. Is this compatible with Halkey-Roberts inflators?
It is developed according to the V80040-type bobbin format and is commonly used with compatible HR automatic inflators.
3. How often should the bobbin be replaced?
Replacement depends on the inflator maker’s maintenance schedule and storage conditions, especially heat and humidity exposure.
4. Is this a full re-arming kit?
No. This page is for the bobbin replacement only unless otherwise stated in the product details.
5. What is the correct installation direction?
Install the bobbin with the white pill facing the inflator cap and make sure it slides in smoothly without force.
