Protects sealsUniformly contains the flared rubber.
Patent Pending
Designed by oilfield personnel
Built for the way the job is actually done
BOS Float Installer
A purpose-built 3½ IF installation sleeve that contains the float seals, keeps the assembly aligned, and replaces tape and improvised restraints.
Reduces dragInternal reliefs lower contact area and vent air.
ReusableNo tape is left inside the float assembly.
Single-unit price: $100 USD. Quantity pricing is available.
3½ IFModel F application
4.000 inOverall length
3.500 inOutside diameter
$100Single-unit price
BOS-FI-350
A dedicated tool for a problem the field already knows.
Float-valve seals can flare beyond the bore and resist entry into the float sub. The BOS Float Installer slides over the valve, brings the seals into a controlled diameter, and helps the complete assembly start square.
The four-inch sleeve sits flush with the top of the sub. Internal relief passages reduce rubbing area and provide a path for trapped air, lubricant, and loose debris.
How it works
Contain. Align. Install. Remove.
One simple sleeve controls the seals while the float is introduced into the bore.
Inspect and lubricate
Clean the bore and apply a suitable lubricant to the seals and installer.
Contain the seals
Slide the installer over the float until the rubber is fully and evenly captured.
Start the assembly square
Center the tool in the bore and advance the float using the approved work procedure.
Remove and reuse
Once the float is seated, remove the sleeve, clean it, and inspect it before reuse.
Actual product photographs
Three additional views of the actual product.
Engraved markings are digitally highlighted in the photographs for visibility.
Installation demonstration
Watch the tool work before you use it.
The video shows the float entering the installer and the seals being brought into a controlled diameter. Use the written guide with your employer's approved procedure.
- Inspect and clean the float-sub bore.
- Lubricate the seals and sleeve.
- Fully contain the seals inside the installer.
- Start the assembly straight and centered.
- Seat the float and remove the installer.
Actual installation demonstration
Technical specifications
Current 3½ IF production configuration
Confirm compatibility with the actual float valve and float-sub bore before use. Inspect the sleeve before every installation.
- Product
- BOS Float Installer
- Part number
- BOS-FI-350
- Application
- 3½ IF Model F float valve
- Overall height
- 4.000 in
- Outside diameter
- 3.500 in
- Inside diameter
- 3.15625 in
- Construction
- Engineered polymer
- Patent status
- Patent Pending
- Single-unit price
- $100.00 USD
Frequently asked questions
Ordering, compatibility, and use
Do you offer bulk or fleet pricing?
Yes. Quantity pricing is available for drilling contractors, service companies, rental companies, pipe yards, and other multi-unit orders. Submit the form below for pricing and estimated lead time.
Does this fit every float valve?
No. BOS-FI-350 is designed for the 3½ IF Model F application. Confirm the float and bore dimensions before use.
Is the installer reusable?
Yes. Clean and inspect it after every use. Remove it from service if it becomes cracked, distorted, heavily worn, or develops a sharp edge.
Does the tool remain inside the float sub?
No. It temporarily contains the seals during installation and is removed after the float is seated.
Individual order
Purchase one BOS Float Installer for $100.
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Bulk and fleet pricing
Request a multi-unit quote.
Provide the quantity, shipping ZIP code, and any schedule requirements. Baker Oilfield Services will reply with pricing and estimated lead time.