Drillmax, Inc. products

Allows constant fluid flow while drilling, yet provides a positive instantaneous shut-off if the flow is stopped or reversed. The closed valve prevents back flow when drilling stops or when breaking connections, and keeps cuttings from clogging the bit. The float valve also acts to assist Blow Out Prevention (BOP) equipment to maintain control over pressure in the well. 

Designed for abrasive drilling fluids. The more robust flapper closes rapidly to prevent cuttings from entering the drill string when flow stops and acts to assist Blow Out Prevention (BOP) equipment in maintaining control over pressure in the line. Model G features an investment cast flapper that is quick opening, for full flow through the valve. It fully opens when joints are raised from the hole, preventing drilling mud from being released onto the rig floor.

The Model GC is identical to the Model G but adds an automatic fill feature when going in the hole. A control arm holds the flapper slightly open during run in, allowing the valve to fill from the bottom. This removes the requirement for filling the drill pipe from the top, saving time. Similar to the Model G, the valve fully opens when the drill string is raised, preventing environmental and safety risks associated with having mud on the rig floor. The valve operates as a Model G as soon as the mud is pumped down the drill string. The Model GC helps prevent pressure surges that could cause formation damage during run in.

The Model F is a plunger type float valve that allows constant fluid flow while drilling, yet provides an instant shut-off if the flow is stopped or reversed. The piston seal stops back flow when breaking connections and keeps cuttings out of the drill string to help prevent clogged bits. In normal drilling operations the Model F offers economy and durability.

The Model G is a flapper type float valve that offers unobstructed flow through the float valve. It’s designed for abrasive drilling fluids. The flapper closes to prevent cuttings from entering the drill string when flow stops and acts to assist BOP equipment in maintaining control over pressure in the drill string. The Model G features an investment cast flapper that is quick opening, allowing full flow through the valve. It fully opens when joints are raised from the hole, preventing drilling mud from being released onto the rig floor.

The Model GC is identical to the Model G but adds an automatic fill feature when going in the hole. A control arm holds the flapper slightly open during run in, allowing the valve to fill from the bottom. This removes the requirement for filling the drill pipe from the top, saving time. Similar to the Model G, the valve fully opens when the drill string is raised, preventing environmental and safety risks associated with having mud on the rig floor. The valve operates as a Model G as soon as the mud is pumped down the drill string. The Model GC helps prevent pressure surges that could cause formation damage.

The Model FA offers all the standard features of the Model F with the added benefit of a ported plunger, a special port which allows fluid a path through the center of the valve. This feature allows for an automatic partial filling of the drill pipe during run in, and facilitates differential pressure reading at the surface.

The Model FBP/FBPA float valve offers all the standard features of the Model F, with the added benefit of an integral baffle plate at the top of the float valve, which is both heavy duty and shatterproof. For operations where a baffle plate is needed, the integral baffle plate helps prevent damage to drilling motors and BHA tools, from recorders, other wireline tools, and debris that are dropped down the string.

The Model GA is identical to the Model G except for a small hole in the middle of the flapper that makes the flapper ported. This port facilitates the ability for differential pressure readings at the surface. The port also allows for partial automatic filling of the drill pipe, during run in.

The Model GCA is identical to the Model GA but adds an automatic fill feature that permits automatic filling of the drill pipe from the bottom and measuring differential pressures from the surface. The Model GCA helps prevent pressure surges that could cause formation damage.