FUL-FLO Hydraulic Circulating Valve

The FUL-FLO Hydraulic Circulating Valve is the part of drill stem testing string, it serves as a bypass around the packer or as a circulating valve to circulate a well after testing.The Hydraulic circulating valve’s delay function carried out by special h

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Description

FUL-FLO Hydraulic Circulating Valve introduction

The FUL-FLO Hydraulic Circulating Valve is the part of drill stem testing string, it serves as a bypass around the packer or as a circulating valve to circulate a well after testing.The Hydraulic circulating valve’s delay function carried out by special hydraulic oil flow over the metering
system, when push top coupling moves forward, the mandrel string and metering system also move forward(Oil chamber divide into 2 parts by metering sleeve), when the fluid in below part flow to top part caused by pressure added, the circulating ports will be closed because of delay function of metering sleeve(The flow rate depend on weight set down, the more weight set, the more flow rate, and the shorter time delay).

Technical parameter of FUL-FLO Hydraulic Circulating Valve

1	OD	127.5mm ( 5")
2	ID	57mm
3	Length Working Pressure Tensile Strength	2312mm(IF BxP) 105Mpa 1459KN
4	Internal Pressure Strength	105Mpa
5	External Pressure Strength Torque Strength Service	139Mpa 22KN.m Mud,Crude Oil,Natural gas NACE MR0175,Above 175F
6	Working Temperature	-29oC~204oC
7	Connection Thread	3 1/2” IF Box X Pin or 3 7/8” CAS Box X Pin

table 2

Specifications	5"
OD	127.5mm
ID	57mm
Length	2312mm
Working Pressure	105Mpa
Tensile Strength(Yield)	1459KN
Internal Yield Pressure strength (Bursting pressure)	105Mpa
External Yield Pressure strength (Collapse Pressure)	139Mpa
Torque Strength	22KN.m
Service environment	Mud, Crude Oil, Natural gas NACE MR0175(>175F)
Service temperature	--29oC~+204oC
End connections	3 7/8 CAS, 3 1/2" IF