Drill Pipe Float Valves

Keystone Energy Tools proudly produces one of the most reliable float valves on the market today. Float Valves are designed with the latest in 3D Modeling allowing for a better mating of component parts and reducing the risk of down hole valve failure.

Pressure Tested Float Valves

Low and High Pressure Test Charts are available upon request.

Valve Body

Keystone valve bodies are manufactured for today’s increasingly harsh drilling environment. All valve bodies 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 valve bodies are manufactured from one-piece casting and are not welded together the way some other competitors produce their bodies. This means that you receive a superior and more reliable valve body.

Integral Plunger Valves

All of Keystone’s plunger valves are machined from one solid piece of material to produce a more reliable float valve and reduce the risk of down hole valve failure. Other leading manufacturers use two separate pieces of material to construct their plungers, which are invariably either shrunk fit, screwed, or welded together.

Flapper Valves

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

Elastomers

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

*Standard Service Buna Nitrile (212 Deg F) Temperature Rating

* H2s Service Viton (450 Deg F)    Temperature Rating

Springs

Inconel® or stainless steel springs come standard on all our valves. These springs are good for sour gas (H2S) applications and are significantly more resistant to corrosion when compared with the standard-service springs provided by most other manufacturers.

Interchangeability

All Keystone drill-pipe float valves and replacement parts are manufactured to standard industry dimensions and are interchangeable with other major manufacturers’ parts.

H2S/High Temp. Service Float Valves

Available in both F and G models.

Operating Pressure

Standard valves – 7,500 PSI working pressure

High pressure valves – 10,000 PSI working pressure

Keystone offers both Plunger-Type Float Valves and Flapper-Type Float Valves.

What type of drill pipe float valves are you searching for?

Plunger-Type Valves:

• Model F – Standard
• Model FC – Automic Fill
• Model FA – Pressure Monitoring

Flapper-Type Valves:

• Model G – Standard
• Model GC – Automatic Fill
• Model GA – Pressure Monitoring
• Model GCA – Auto Fill Pressure Monitoring

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