Piston valve with annular passages
First Claim
1. Apparatus comprising:
- a valve body, wherein the body includesa first external port,a second external port, wherein the first port is fluidly connected to the second port through a first passage within the body,a third external port,a fourth external port, wherein the third port is fluidly connected to the fourth port through a second fluid passage within the body,a third passage within the body, wherein the third passage extends fluidly between the first passage and the second passage,a first rotatable valve element within the body,a first rotatable valve stem operatively connected to the first valve element, wherein the first valve stem is accessible from outside the body,wherein the first valve element is rotatably positionable via rotation of the first valve stem to fluidly connectthe first and second ports only (position A), orthe first port and the third passage only (position B),a second rotatable valve element within the body,a second rotatable valve stein operatively connected to the second valve element, wherein the second valve stem is accessible from outside the body and is adjacent the first valve stem,wherein the second valve element is rotationally positionable via rotation of the second valve stem to fluidly connectthe third and fourth ports only (position C), orthe third port and the third passage only (position D),a first removable manually engageable handle, wherein the first valve stem is releasably engageable with the first removable manually engageable handle, wherein the first valve element is changeable between positions A and B through manual movement of the first handle,a second removable manually engageable handle, wherein the second valve stem is releasably engageable with the second removable manually engageable handle,wherein the second valve element is changeable between positions C and D through manual movement of the second handle,an actuator, wherein with the first and second handles disengaged from the first and second valve stems respectively, the body is engageable with the actuator, wherein the actuator includesa unitary actuator housing,at least one motor within the actuator housing,wherein with the actuator housing operatively engaged with the first and second valve stems, the actuator is selectively operative torotate the first valve stem to selectively position the first valve element in position A or position B,rotate the second valve stem to selectively position the second valve element in position C or position D.
1 Assignment
0 Petitions
Accused Products
Abstract
A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55,57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasibly engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.
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Citations
24 Claims
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1. Apparatus comprising:
a valve body, wherein the body includes a first external port, a second external port, wherein the first port is fluidly connected to the second port through a first passage within the body, a third external port, a fourth external port, wherein the third port is fluidly connected to the fourth port through a second fluid passage within the body, a third passage within the body, wherein the third passage extends fluidly between the first passage and the second passage, a first rotatable valve element within the body, a first rotatable valve stem operatively connected to the first valve element, wherein the first valve stem is accessible from outside the body, wherein the first valve element is rotatably positionable via rotation of the first valve stem to fluidly connect the first and second ports only (position A), or the first port and the third passage only (position B), a second rotatable valve element within the body, a second rotatable valve stein operatively connected to the second valve element, wherein the second valve stem is accessible from outside the body and is adjacent the first valve stem, wherein the second valve element is rotationally positionable via rotation of the second valve stem to fluidly connect the third and fourth ports only (position C), or the third port and the third passage only (position D), a first removable manually engageable handle, wherein the first valve stem is releasably engageable with the first removable manually engageable handle, wherein the first valve element is changeable between positions A and B through manual movement of the first handle, a second removable manually engageable handle, wherein the second valve stem is releasably engageable with the second removable manually engageable handle, wherein the second valve element is changeable between positions C and D through manual movement of the second handle, an actuator, wherein with the first and second handles disengaged from the first and second valve stems respectively, the body is engageable with the actuator, wherein the actuator includes a unitary actuator housing, at least one motor within the actuator housing, wherein with the actuator housing operatively engaged with the first and second valve stems, the actuator is selectively operative to rotate the first valve stem to selectively position the first valve element in position A or position B, rotate the second valve stem to selectively position the second valve element in position C or position D. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Apparatus comprising:
a valve including a body, wherein the body includes a first external port, a second external port, wherein the first and second ports are fluidly connectable through a first passage within the body, a third external port, a fourth external port, wherein the third and fourth ports are fluidly connectable through a second passage within the body, a first rotatable valve element positioned in fluid connection with the first passage, a second rotatable valve element positioned in fluid connection with the second passage, a third passage extending within the body, wherein the third passage is fluidly connectable to each of the first valve element and the second valve element, wherein the first valve element is selectively rotationally positionable between rotational positions wherein the first and second ports are fluidly connected through the first passage, and the third passage is fluidly connected to the first and second ports (position A), the first and second ports are not fluidly connected within the body, and the first port is fluidly connected to the third fluid passage (position 13), wherein the second valve element is selectively rotationally positionable between rotational positions wherein the third port and the fourth port are fluidly connected through the second passage within the body, and the third passage is not fluidly connected within the body to either the third port or the fourth port (position C), wherein the third port and the fourth port are not fluidly connected within the body and the third fluid passage is fluidly connected within the body to the third port (position D), wherein the first valve element is in operative connection with a first rotatable stem that is accessible outside the body, wherein rotation of the first stein causes rotation of the first valve element, a first manually engageable handle and second manually engageable handle, an actuator, wherein the actuator includes a unitary actuator body, wherein the second valve element is in operative connection with a second rotatable stem that is accessible outside the body, wherein rotation of the second stem causes rotation of the second valve element, wherein the first stem and the second stem are both alternatively releasably engageable with either the first and second manually engageable handles respectively, wherein the first and second handles are usable to selectively manually position the first and second valve elements, or the actuator, wherein the actuator body is operative to simultaneously engage both the first and second valve stems and to selectively position the first and second valve elements responsive to electrical signals. - View Dependent Claims (19, 20)
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21. Apparatus comprising:
a valve body, wherein the body includes a first external port, a second external port, wherein the first port is fluidly connected to the second port through a first passage within the body, a third external port, a fourth external port, wherein the third port is fluidly connected to the fourth port through a second fluid passage within the body, a third fluid passage within the body, wherein the third passage extends fluidly between the first passage and the second passage, a first rotatable valve element within the body, a first rotatable valve stem operatively connected to the first valve element, wherein the first valve stem is accessible from outside the body, wherein the first valve element is rotatably positionable via rotation of the first valve stem to fluidly connect the first and second ports only (position A), or the first port and the third passage only (position B), a second rotatable valve element within the body, a second rotatable valve stem operatively connected to the second valve element, wherein the second valve stem is accessible from outside the body and is adjacent the first valve stem, wherein the second valve element is rotationally positionable via rotation of the second valve stem to fluidly connect the third and fourth ports only (Position C), or the third port and the third passage only (Position D), at least one removable manually engageable handle, wherein the first valve stem is releasably engageable with the at least one handle, wherein the first valve element is changeable between positions A and B through manual movement of the at least one handle, wherein the second valve stem is releasably engageable with the at least one handle, wherein the second valve element is changeable between positions C and D through manual movement of the at least one handle, an actuator, wherein with the at least one handle disengaged from the first and second valve stems, the actuator is operatively engageable with the first and second valve stems, wherein the actuator includes a unitary actuator housing, at least one motor within the actuator housing, wherein with the actuator operatively engaged with the first and second valve stems, the actuator is selectively operative to rotate the first valve stem to selectively position the first valve element in position A or position B, rotate the second valve stem to selectively position the second valve element in position C or position D, a liquid treatment system, wherein the liquid treatment system includes a liquid treatment tank including liquid treatment media therein, a liquid treatment valve in operative connection with the liquid treatment tank, wherein the liquid treatment valve includes an inlet valve port adapted to receive untreated liquid, an outlet valve port adapted to deliver treated liquid, a first tank valve port and a second tank valve port each connected to the liquid treatment tank on fluidly opposed sides of the liquid treatment media, wherein the second port of the body is fluidly connected directly to the inlet valve port and the fourth port of the body is fluidly connected to the outlet valve port, wherein the first port of the body is connected to a liquid source, wherein the third port of the body is connected to at least one liquid use device, wherein the actuator selectively enables liquid from the liquid source to be available at the inlet valve port, treated by passing through the liquid treatment tank and delivered from the third port of the body, not be available at the inlet port and either not delivered to any of the second, third, or fourth ports of the body, or be bypassed without treatment in the tank by passing through the third passage and delivered from the third port of the body.
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22. Apparatus comprising:
a valve body, wherein the body includes a first external port, a second external port, wherein the first port is fluidly connected to the second port through a first passage within the body, a third external port, a fourth external port, wherein the third port is fluidly connected to the fourth port through a second fluid passage within the body, a third fluid passage within the body, wherein the third passage extends fluidly between the first passage and the second passage, a first rotatable valve element within the body, a first rotatable valve stem operatively connected to the first valve element, wherein the first valve stem is accessible from outside the body, wherein the first valve element is rotatably positionable via rotation of the first valve stem to fluidly connect the first and second ports only (position A), or the first port and the third passage only (position B), a second rotatable valve element within the body, a second rotatable valve stem operatively connected to the second valve element, wherein the second valve stem is accessible from outside the body and is adjacent the first valve stem, wherein the second valve element is rotationally positionable via rotation of the second valve stem to fluidly connect the third and fourth ports only (position C), or the third port and the third passage only (position D), at least one removable manually engageable handle, wherein the first valve stem is releasably engageable with the at least one handle, wherein the first valve element is changeable between positions A and B through manual movement of the at least one handle, wherein the second valve stem is releasably engageable with the at least one handle, wherein the second valve element is changeable between positions C and D through manual movement of the at least one handle, an actuator, wherein with the at least one handle disengaged from the first and second valve stems, the actuator is operatively engageable with the first and second valve stems, wherein the actuator includes a unitary actuator housing, at least one motor within the actuator housing, wherein with the actuator operatively engaged with the first and second valve stems, the actuator is selectively operative to rotate the first valve stem to selectively position the first valve element in position A or position B, rotate the second valve stem to selectively position the second valve element in position C or position D, wherein the first port is in direct operative fluid connection with at least one liquid use device, wherein the second port is in direct operative fluid connection with a liquid source, wherein the fourth port is blocked, wherein the third port is in direct operative fluid connection with a liquid drain, wherein the actuator is selectively operative to position the first valve element in position A and the second valve element in position C, wherein liquid is available from the source at the second port and is passed to the at least one liquid use device from the first port, and no liquid passes through the body to the drain from the third port, position the first valve element in position B and the second valve element in position C, wherein no liquid available from the source at the second port passes through the body, no liquid passes through the body to the drain from the third port, and the first port is fluidly separated within the body from any other port of the body, position the first valve element in position B and the second valve element in position D, wherein no liquid available from the source at the second port passes through the body, and the first port is in operative fluid connection through the body with the third port and the drain.
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23. Apparatus comprising:
a valve including a body, wherein the body includes a first external port, a second external port, wherein the first and second ports are fluidly connectable through a first passage within the body, a third external port, a fourth external port, wherein the third and fourth ports are fluidly connectable through a second passage within the body, a first rotatable valve element positioned in fluid connection with the first passage, a second rotatable valve element positioned in fluid connection with the second passage, a third passage extending within the body, wherein the third passage is fluidly connectable to each of the first valve element and the second valve element, wherein the first valve element is selectively rotationally positionable between rotational positions wherein the first and second ports are fluidly connected through the first passage, and the third passage is fluidly connected to the first and second ports (position A), the first and second ports are not fluidly connected within the body, and the first port is fluidly connected to the third fluid passage (position B), wherein the second valve element is selectively rotationally positionable between rotational positions wherein the third port and the fourth port are fluidly connected through the second passage within the body, and the third passage is not fluidly connected within the body to either the third port or the fourth port (position C), wherein the third port and the fourth port are not fluidly connected within the body and the third fluid passage is fluidly connected within the body to the third port (position D), wherein the first valve element is in operative connection with a first rotatable stem that is accessible outside the body, wherein rotation of the first stem causes rotation of the first valve element, wherein the second valve element is in operative connection with a second rotatable stem that is accessible outside the body, wherein rotation of the second stem causes rotation of the second valve element, at least one removable manually engageable handle, an actuator, wherein the first stem and the second stem are both alternatively releasably engageable with either the at least one handle, wherein the at least one handle is usable to selectively manually position the first and second valve elements, or the actuator, wherein the actuator includes a unitary actuator body, wherein the actuator is operative to simultaneously operatively engage both the first and second valve stems and to selectively position the first and second valve elements responsive to electrical signals, wherein the second port is directly fluidly connected to a liquid source, the first port is directly fluidly connected to at least one liquid use device, the fourth port is blocked, and the third port is directly fluidly connected to a drain, wherein the actuator is selectively operative to position the first valve element in position A and the second valve element in position C, wherein liquid from the liquid source passes through the body to the at least one liquid use device and no liquid passes through the body to the drain, position the first valve element in position B and the second valve element in position C, wherein no liquid available from the source passes from the second port through the body, and no liquid passes through the body to the drain, position the first valve element in position B and the second valve element in position D, wherein no liquid available from the source at the second port passes through the body, and liquid is enabled to return from the at least one liquid use device and pass into the first port and through the body and the third fluid passage, and from the body through the third port to the drain.
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24. Apparatus comprising:
a valve including a body, wherein the body includes a first external port, a second external port, wherein the first and second ports are fluidly connectable through a first passage within the body, a third external port, a fourth external port, wherein the third and fourth ports are fluidly connectable through a second passage within the body, a first rotatable valve element positioned in fluid connection with the first passage, a second rotatable valve element positioned in fluid connection with the second passage, a third passage extending within the body, wherein the third passage is fluidly connectable to each of the first valve element and the second valve element, wherein the first valve element is selectively rotationally positionable between rotational positions wherein the first and second ports are fluidly connected through the first passage, and the third passage is fluidly connected to the first and second ports (position A), the first and second ports are not fluidly connected within the body, and the first port is fluidly connected to the third passage (position B), wherein the second valve element is selectively rotationally positionable between rotational positions wherein the third port and the fourth port are fluidly connected through the second passage within the body, and the third passage is not fluidly connected within the body to either the third port or the fourth port (position C), wherein the third port and the fourth port are not fluidly connected within the body and the third fluid passage is fluidly connected within the body to the third port (position D), wherein the first valve element is in operative connection with a first rotatable stem that is accessible outside the body, wherein the first stem is configured to be rotatable from outside the body, wherein rotation of the first stem causes rotation of the first valve element, wherein the second valve element is in operative connection with a second rotatable stem that is accessible outside the body, wherein the second stem is configured to be rotatable from outside the body, wherein rotation of the second stem causes rotation of the second valve element, an actuator, wherein the actuator includes a unitary actuator body, wherein the actuator is operatively releasably engageable simultaneously with the first stem and the second stem, wherein with the actuator operatively engaged with both the first stem and the second stem, the actuator is operative to simultaneously selectively position the first and second valve elements, and wherein with the actuator disengaged from both the first stem and the second stem, the first and second stems are configured to be separately operatively engaged outside the body to selectively position the first and second valve elements.
Specification