Patent application number | Description | Published |
20140048735 | BALL OR HALF-BALL VALVE WITH DRAIN-PROOF MECHANISM - A ball or half-ball valve with drain-proof mechanism comprises a body; inner side of the body being formed as a chamber and a through hole communicated to the chamber; an annular seat received in an annular trench of a wall of the through hole; a drain-proof unit; a valve unit installed to the inner side of the annular seat; the valve unit having an axial hole for receiving the stem; and a cover having a size corresponding to that of the through hole of the body; the cover being locked to an outer side of the through hole. The drain-proof unit has three different structures. The elements of the structures are replaceable with each other for being installed to the valve. Each mode is suitable for different environments. In the present invention, the cover can be detached easily for repairing or maintaining the elements therein. It is easy and convenient. | 02-20-2014 |
20140061514 | BALL VALVE HAVING ACTUATOR OF BLOW OUT PREVENTION - A ball valve having an actuator of blow out prevention includes a valve body, actuator, and a ball. The valve body has a valve chamber inside thereof and a passageway, top bore, bottom bore extending from the valve chamber. The actuator has a connection portion penetrating through the top bore to the valve chamber, the connection portion has a round groove and a C-shaped buckle. The actuator serves to be rotated by an external driver. The ball inside the valve chamber serves to control the flow of the valve chamber. The ball has a connection hole engaging the connection portion of the actuator. The C-shaped buckle retains the actuator connected to the ball through buckling the round groove of the connection portion receiving inside the connection hole of the ball so that the actuator will not blow out by the pressure of the valve during a damage or maintenance. | 03-06-2014 |
20140084201 | TRI-ECCENTRIC VALVE WITH A SYMMETRIC DRAIN-PROOF RING - A tri-eccentric valve with a symmetric drain-proof ring includes a valve body, a stem, a valve disk, a waterproof washer, and a drain-proof ring. The valve disk is formed as an asymmetric conical shape. The drain-proof ring is an O ring and is arranged in a stepped recess of the valve disk to seal the waterproof washer; the drain-proof ring is symmetric to the axis of the ring. In assembly state, a periphery of the drain-proof ring resists against an inner wall of the annular seat. The drain-proof ring is symmetrical and thus is easy to be installed to the valve disk without to align the drain-proof ring to a specific angle. Furthermore, it can be designed by computers and is manufactured by machines. When dirt accumulates on the drain-proof ring, it can remove the dirt by directly rotating the drain-proof ring. | 03-27-2014 |
20150034846 | AUTOMATIC DETECTING AND REPAIRING WISDOM VALVE APPARATUS - An automatic detecting and repairing wisdom valve apparatus includes a valve having a valve sheet; a valve switch connected to the valve sheet through a stem; a driver connected the valve switch; a position detector for detecting positions of the valve sheet with respect to time; a near field controller connected to the driver and the position detector and has a logic unit and a comparator; the logic unit storing rules for determining valve state; a far end control unit for receiving data about the valve; the far end control unit being monitored by monitoring members; and a fault elimination unit; the fault elimination unit storing rules for eliminating of faults about the valve automatically or reporting the faults to the far end monitoring members to do necessary actions. The comparator compares the position-time track of the valve sheet with the standard track the state of the valve. | 02-05-2015 |
20150097132 | BALL OR HALF-BALL VALVE WITH DRAIN-PROOF MECHANISM - A ball or half-ball valve with drain-proof mechanism includes a body; inner side of the body being formed as an approximate round chamber therein and a through hole communicated to the chamber; an annular seat received in the through hole; two ends of the annular seat having reduced stepped structures; the annular seat being made of metal; an inner side of a rear end of the annular seat being formed with a reduced annular recess and an outer side of a front end thereof being formed with a stepped structure; a valve unit being installed to the inner side of the annular seat; the valve unit having an axial hole for receiving the stem; and a cover having a size corresponding to that of the through hole; and an outer rear end of the cover being formed with an annular flange received in the annular recess of the annular seat. | 04-09-2015 |
20150115190 | WEAR-RESISTANT VALVE ASSEMBLY - A wear-resistant valve assembly includes a valve body; a stem penetrating through the valve body; a valve disk installed in the chamber of the valve body and contacting an inner wall of the valve body; a valve body wear-resistant layer formed at an inner annular area of the valve body, which is also at a position contacting the valve disk; and a valve disk wear-resistant layer formed on an outer annular area of the valve disk at a position contacting the valve body; and wherein the valve body wear-resistant layer and the valve disk wear-resistant layer are made of materials selected from carbon alloys and satellite alloys. Furthermore, the valve disk is a triple-eccentric structure; and a drain-proof-ring wear-resistant layer and a valve seat wear-resistant layer are further formed. | 04-30-2015 |
20150120065 | PARAMETER SELECTION AND CALCULATION SYSTEM FOR CONTROL VALVES - A parameter selection and calculation system for control valves has a file manage unit for integrating and storing the files generated in operation. In that, the control valve specification table for control valves of similar forms can be stored in one control valve design file instead of being stored in various different files. Furthermore, a language selection unit provides the function that a user can select a desire language for operating. Moreover, a user can enter into a numerical input unit for inputting related design parameters for a specific control valve or getting related design parameters by selected proper control valve forms in the control valve design database. Then these data are formed as control valve parameter tables acceptable by the control valve logic operation unit. Then the control valve logic operation unit will operate to get a control valve specification table by using the control valve parameter tables. | 04-30-2015 |
20150137020 | BALL OR HALF-BALL VALVE WITH DRAIN-PROOF MECHANISM - A ball or half-ball valve with drain-proof mechanism includes a body; inner side of the body being formed as an approximate round chamber and a through hole communicated to the chamber; a top of the body being formed with an upper penetrating hole; a stem passing through the upper penetrating hole; an annular seat received in an annular trench of a wall of the through hole; an outer wall of the annular seat having a trench; a drain-proof ring being an O ring and being received in the trench of the annular seat; a waterproof washer being an annular ring and an axial ring surface of the waterproof washer having a wavelike shape; a valve unit installed to the inner side of the annular seat; the valve unit having an axial hole for receiving the stern; and a cover locked to an outer side of the through hole. | 05-21-2015 |