Self-Filling Equipment > Differential Fill Float Equipment
U600 Series Differential Float Equipment
Our U600 Series Differential Fill Float Equipment allows fluid to enter the casing from the bottom while casing is run in the well. It is a double flapper valve design that allows casing fill-up to approximately 80 – 85% capacity before closing off flow.
The free-flow action when lowering the casing reduces surge pressures and help reduce casing run time. The valve is converted check valve by dropping a trip ball once at the desired depth.
It is 100% PDC drillable and certified to API 10F Specifications.

U600 Series Differential
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U600 Series Float Shoe Float shoes are run in unison with float collars and help guide the casing to target depth. They serve as the primary valve during cement displacement and prevent any returns back up the casing string. Our U600 Series Differential Fill Float Shoe is certified to API 10F Specifications. Technical Specifications:
Options:
Internal components are PDC drillable. Available in sizes from 5” to 16” in various configurations REQUEST A QUOTE CREDIT APPLICATION
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U601 Series Float Collar Float Collars are the secondary valve in preventing cement flow up the casing when used in unison with a float shoe, and the primary valve when used in unison with a guide shoe. They also serve as a landing point for cementing plugs. Our U601 Series Differential Float Collar is certified to API 10F Specifications. Technical Specifications:
Internal components are PDC drillable. Available in sizes from 5” to 16” in various configurations REQUEST A QUOTE CREDIT APPLICATION
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U600 Series Float Shoe
Float shoes are run in unison with float collars and help guide the casing to target depth. They serve as the primary valve during cement displacement and prevent any returns back up the casing string.
Our U600 Series Differential Fill Float Shoe is certified to API 10F Specifications.
Technical Specifications:
- Flow Rate (Forward): 6 bpm for 24 hours
- Flow Rate (Reverse): 3 bpm for 6 hours
- Back Pressure: 5,000 psi
- Temperature: 300 – 400 °F (depending on seals)
- Flow Area:
- 1.500” Valve: 1.61in²
- 1.750” Valve: 2.19in²
Options:
- Single or Double Valve
- Standard Cement Round Nose
- 1.500” or 1.750” Trip ball
- Composite or Aluminum Nose of the following:
- Tapered
- Tapered Cut-Lip
- Round
- Bullet
- Eccentric
- Cementing Ports:
- Down-Jets
- Side Ports
- Up-Jets
Internal components are PDC drillable.
Available in sizes from 5” to 16” in various configurations
U601 Series Float Collar
Float Collars are the secondary valve in preventing cement flow up the casing when used in unison with a float shoe, and the primary valve when used in unison with a guide shoe. They also serve as a landing point for cementing plugs.
Our U601 Series Differential Float Collar is certified to API 10F Specifications.
Technical Specifications:
- Flow Rate (Forward): 6 bpm for 24 hours
- Flow Rate (Reverse): 3 bpm for 6 hours
- Back Pressure: 5,000 psi
- Temperature: 300 – 400°F (depending on seals)
- Flow Area:
- 1.500” Valve: 1.61in²
- 1.750” Valve: 2.19in²
Internal components are PDC drillable
Available in sizes from 5” to 16” in various configurations
24 Hour or Less Quotations
Proactive Global Reach
Ferro-Tube Oil Tools Co. is a leading manufacturer of Float Equipment and accessories. We provide superior designed equipment to provide optimal performance under any well conditions.

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Why Ferro-Tube
Ferro-Tube centralizers and accessories can be found in oil and gas wells around the world.

Our number one goal is to exceed our customers’ expectations and provide them with the strongest, most reliable and cost-efficient products in the oil field industry.
Our experienced engineering team is ready to answer all your questions and guide you to the right product for your project.
We are one of the country’s most respected and reliable suppliers for spiral and straight vane centralizers.
Ferro-Tube is a family owned manufacturer with a global reach
Navigate To Our Other Products
Navigate To Our Other Products
Float Equipment
Conventional Float Equipment
U200 Series Standard (IIB)
U300 Series Standard (IIIC)
U800 Series Flapper (LCM)
High-Pressure High-Temperature Float Equipment
U500 Series HP/HT Drillable
223-224 HP/HT Non-Drillable
Self-Filling Float Equipment
U600 Series Differential Fill
U700 Series Ball Convert Auto-Fill
Cementing Accessories
Cement Baskets
Cementing Wiper Plugs
Centralizers
Bow Spring Centralizers
One Piece Centralizer
Phenolic Rigid Spiral Blade Centralizer
Rigid Straight Blade Centralizer
Welded Rigid Centralizers
Stop Collars
Thread Compounds
Specialty Products
Centralizer Subs
Cross-Over Subs
Landing Collar
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Email us at
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