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Davis Manual-Fill Float Shoes |
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Davis manual-fill float shoes and float
collars are simple in design and operation. They have been engineered
and manufactured to withstand the high temperatures encountered and the
high pressures created by differences in fluid columns when floating,
landing, and cementing strings of casing. Davis’ standard design
manual-fill float shoes and float collars are manufactured with the
Davis PVTS valve. This valve is a spring-actuated, plunger-type, one-way
check valve. It is designed to withstand high temperatures and large
volumes of fluids pumped at high flow rates.
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It also provides an effective seal
under both high and low pressure conditions when casing is run and cemented
in either the vertical or horizontal position. The valve housing and closure
element are made with a phenolic material. High strength concrete is the
compound that molds the valve in the machined housing to form a strong
singular unit. Despite the high compressive strength of the concrete,
and the shear strength of the valve, Davis float shoes and collars are
easily drilled with conventional or PDC bits. Because of its proven performance
qualities, the PVTS valve is used in all manual-fill Davis float equipment
including double-valve shoes and collars, and all inner-string cementing
equipment including the tag-in, screw-in, and latch-in designs. Since
Davis float shoes and float collars are usually manufactured from steel
that has a greater wall thickness than the pipe body of the casing string
they are run in, they normally have burst and collapse resistance greater
than the casing string.
 Brochure
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| Type 500-PVTS |
Type 501-PVTS |
Type 501 DV-PVTS |
Type 600 |
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