Keystone Energy offers a wide variety of different types of float valves for all drilling applications.
Keep reading to see what Drill Pipe Float Valves we have to offer and what makes them the best oilfield tools on the market.
At Keystone, we recognize the severity of drilling with a reliable and trusted valve - float valves are essential for drilling, and must stand the test of harsh environments.
Keystone's float valves are precision manufactured from high-grade materials and perform optimally in drilling environments.
We offer certified, pressure-tested float valves. As a leading manufacturer of float valves, we recognize the severity of drilling with a reliable and trusted float valve; For this reason, we offer certified float valves that are serialized.
Additionally, we will provide certification of high-and-low pressure tests upon request.
All of Keystone's drill pipe float valve cages are manufactured for today’s increasingly harsh drilling environment.
All Keystone drill-pipe float valves and replacement parts are:
All KET Float Valves, baffle plates, and valve pullers are interchangeable with:
Elgiloy, Inconel® or stainless steel springs come standard on all our valves.
Our high alloy springs offer unique qualities:
Available elastomers are nitrile butadiene (NBR, Buna-N) and Viton® (fluoroelastomer, FKM)(H2S Applications) and Aflas (steam service).
Available in both F and G models.
A = L (Length of Float Valve) + Length of Tool Joint Pin + 1/4” Clearance
Keystone offers the following three types of Drill Pipe Float Valves:
All plunger valves are machined from one solid piece of material, producing a more reliable float valve and reducing the risk of down hole valve failure.
This produces plungers that are invariably either shrunk fit, screwed, or welded together.
The Model F is a plunger-type float valve that provides a positive instantaneous shut off, providing constant fluid
control while drilling.
The Model F is a reliable and economical selection under standard drilling operations.
The Model FC Automatic-Fill plunger-type float valve incorporates a unique key assembly and slotted valve stem to hold the plunger open during run in of the drill pipe.
This assembly allows the pipe to fill from the bottom, saving time, reducing mess, and avoiding hazards.
The Model FA Pressure-Monitoring plunger-type float valve has a special port running through the plunger of the float valve. The port also permits partial automatic fill during run in.
This valve is used when monitoring the bit head for gas pressure and allowing differential pressure measuring when required.
Our standard-service flapper valves are made of low-alloy steel and then case hardened for wear resistance, thus giving a longer operating life.
The Model G is a flapper-type float valve that, when opened, offers an unobstructed bore through the float valve.
The uniquely designed flapper closes rapidly to prevent shavings from entering the drill string when circulation stops and also assists primary BOP equipment in maintaining internal pressure control.
The valve will fully open when the first joint is raised from the hole, preventing pulling wet joints
The Model GC Automatic-Fill flapper-type float valve incorporates a unique self-releasing key assembly that holds the flapper partially open during run in, allowing the pipe to fill from the bottom. This eliminates the need for filling the drill pipe from the top, saving time and money.
The valve will fully open when the first joint is raised from the hole, preventing pulling wet joints while avoiding the environmental and safety risks related to having mud on the rig floor.
The valve can be run with the automatic-fill option or in the standard, closed position.
The Model GA Pressure-Monitoring flapper-type float valve is indistinguishable from the Model G with the exception of a tungsten-carbide insert in the flapper valve.
The insert has a quarter-inch orifice through the center that allows for differential pressure monitoring.
The orifice also allows for partial automatic filling of the drill pipe during run in
The Model GCA Automatic-Fill/Pressure-Monitoring flapper-type float valve includes all the advantages of the Models G, GC, and GA.
An unobstructed bore through the float valve, when open, permits automatic partial filling of the drill pipe from the bottom and measuring differential pressures when necessary.
At Keystone, we recognize the severity of drilling with a reliable and trusted valve - float valves are essential for drilling, and must stand the test of harsh environments.
Drill Pipe Float Valves
Keystone Energy Tools is a manufacturer with over fifty years of combined experience in designing, manufacturing, and delivering high-quality oilfield tools, including elevators, slips, dies and inserts, tongs dies, safety clamps, stabbing guides, drill pipe float valves, baffle plates, float valve pullers, rotating mouseholes, and tong blocks.
By using the latest in 3D modeling for product design and by staying current with the rapid advances in manufacturing technology and quality-assurance standards, Keystone is able to manufacture and produce the most reliable products on the market today.