Float Valve Overview

Manufactured in the USA. Contact email@staceyoil.com

The information on this website is not an opertaional guide. It is a product and usage overview.

Valve Body

Stacey's valve bodies are manufactured for today's increasingly harsh drilling environments. All valve bodies are cast from alloy steel and are heat treated to a hardness less than or equal to 22 Rockwell C (≤ 22 Rockwell C 2 HTR) to address the corrosive effect of hydrogen sulfide gas (H2S).

Stacey's integral valve bodies are manufactured from one-piece casting and are not welded together, unlike some competitors. This means that you receive a superior and more reliable valve body.

Integral Plunger Valves

All of Stacey's plunger valves are machined from one solid piece of material to produce a more reliable float valve and so reduce the risk of down hole valve failure. Other manufacturers often use two separate pieces of material to construct their plungers, which have then to be joined together, usually shrunk fit, screwed or welded.

Flapper Valves

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


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


Inconel® or stainless steel springs come as standard on all of Stacey's valves. These springs are good for sour gas (H2S) applications and are significantly more resistant to corrosion than the standard-service springs provided by most manufacturers.


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

Sour-Gas (H2S) Service

Available in both F and G models.

Float Subs

All Stacey Float Subs are Manufactured to current Industry Standards / Certification requirements specified by the Customer.