Introducing Keystone's Energy's Drill Pipe Float Valves

Drill pipe float valves - Keystone energy

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.

How are Keystone's Drill Pipe Float Valves Made?

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.

What Are The Spec Details of Keystone's Drill Pipe Float Valves?

Unique Valve Body

All of Keystone's drill pipe float valve cages are manufactured for today’s increasingly harsh drilling environment.

Superior and more reliable valve cage

All cages are cast out of alloy steel and are heat treated to a hardness equal to or less than 22 Rockwell C (≤ 22 Rockwell C 2 HR) to address the corrosive effects of hydrogen-sulfide gas (H2S).
Keystone’s integral cages are manufactured from one-piece casting, and are not welded together the way some other competitors produce their cages.
We offer stainless steel & Nickle Plated valves for highly corrosive environments

Drill Pipe Float Valve _ Keystone Energy

Interchangeability Options

All Keystone drill-pipe float valves and replacement parts are:

Manufactured to standard industry dimensions
Interchangeable with other major manufacturers’ parts

Baker® Style Model Compatible

All KET Float Valves, baffle plates, and valve pullers are interchangeable with:

Baker® Style Model F Float Valves
Baker® Style Model G Float Valves

Spring Options

Elgiloy, Inconel® or stainless steel springs come standard on all our valves.

Our high alloy springs offer unique qualities:

Can be used in sour gas (H2S) applications
Significantly more resistant to corrosion when compared with the standard-service springs provided by most other manufacturers.

Drill Pipe Plunger Valve _ Keystone Energy

Elastomer Options

Available elastomers are nitrile butadiene (NBR, Buna-N) and Viton® (fluoroelastomer, FKM)(H2S Applications) and Aflas (steam service).

Standard Service Buna Nitrile (212 Deg F) Temperature Rating
Hi-Temp Viton (450 Deg F) Temperature Rating
H2S Service Viton (450 Deg F) Temperature Rating
Steam Service Aflas (475 Deg. F.) Temp rating

Different Operating Pressure Options

- For Standard valves - 7,500 PSI working pressure
- For High pressure valves - 10,000 PSI working pressure

Sour-Gas (H2S) Service Option

Available in both F and G models.

Dimensional Data

Drill Pipe Float Valve _Dimensions Keystone Energy

A = L (Length of Float Valve) + Length of Tool Joint Pin + 1/4” Clearance
Drill Pipe Float Valve _Dimensional Data_ Keystone Energy

Which Types of Casing Drill Pipe Float Valves Does Keystone Offer?

Keystone offers the following three types of Drill Pipe Float Valves:

Plunger-Type
Flapper-Type

Drill Pipe Valves _ Keystone Energy

Plunger-Type 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.

Model F – Standard

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.

Drill Pipe Plunger Valve _ Model F – Standard _ Keystone Energy

Model FC – Automatic Fill

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.

Drill Pipe Plunger Valve _ Model FC – Automic Fill _ Keystone Energy

Model FA – Pressure Monitoring

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.

Drill Pipe Plunger Valve _ Model FA – Pressure Monitoring _ Keystone Energy

Flapper-Type Float Valves

Our standard-service flapper valves are made of low-alloy steel and then case hardened for wear resistance, thus giving a longer operating life.

Model G – Standard

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

Drill Pipe Flapper Valve _ Model G – Standard _ Keystone Energy

Model GC – Automatic Fill

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.

Drill Pipe Flapper Valve _ Model GA – Pressure Monitoring_ Keystone Energy

Model GA – Pressure Monitoring

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

Drill Pipe Flapper Valve _ Model GC – Automatic Fill_ Keystone Energy

Model GCA – Auto Fill Pressure Monitoring

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.

Drill Pipe Flapper Valve _ Model GCA – Auto Fill Pressure Monitoring _ Keystone Energy

Keystone's Full Line of Float Valves