摘要:
A fluid control device 1 comprises a metal body 2 having a fluid inlet channel 2a, a fluid outlet channel 2b and a communication channel 2c for holding the two channels in communication, and a metal slide member 3 vertically movable in a vertical passage 11 including the communication channel 2c for closing or opening the communication channel 2c with an end portion thereof. At least the end portion 3a of the slide member 3 is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.
摘要:
A specified metal member included among the components of a valve, coupling or like fluid handling part for use in piping and fluid control devices is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities, the alloy having a CRI (crevice corrosion resistance index) value in the range of 40≦CRI≦55, as determined from the expression CRI=[Cr]+4×[Mo]+30×[N] wherein the amount of alloy components present in combination in the alloy to ensure crevice corrosion resistance are expressed in % by weight.
摘要:
A specified metal member (e.g., a bolt) 5 included among a plurality of components 2, 3, 4, 5, 6 of a fluid handling part and having a surface exposed on an exterior of the fluid handling part is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.
摘要:
A ball valve which can suppress the increasing of processing labor time and reliably prevent simultaneous rotation of a ball seat and a ball when the ball is rotated by handle manipulation is provided. The valve body 2 is formed of a hard material such as stainless steel, the ball seat is formed of a relatively soft material such as a fluorine resin, and a protrusion 18 is formed on a ball seat support surface 13 of the valve body 2 made of a hard material so as to bite into the ball seat 4.
摘要:
A stopper support member 12 has a rectangular plate 15 provided with a circular through hole 16 for a cylinder 7 of a fluid controller body 2 to be fittingly inserted therethrough, a downward projection 17 provided at lengthwise one end of the rectangular plate 15 and held in contact with one side wall of a rectangular parallelepipedal portion 4 of the controller body 2, and an extension 15a extending outward from the plate 15 beyond the parallelepipedal portion 4. A stopper 13 in the form of a vertical plate is upwardly or downwardly movably inserted through a hole 18 formed in the extension 15a of the support member 12. The stopper 13 has a contact portion 19 movable into contact with the knob 3a of the handle 3 from outside widthwise of the knob when the stopper is in a locking position and a lock attaching portion 20 positioned above the support member 12 when the stopper is in the locking position.
摘要:
A ball valve which can suppress the increasing of processing labor time and reliably prevent simultaneous rotation of a ball seat and a ball when the ball is rotated by handle manipulation is provided. The valve body 2 is formed of a hard material such as stainless steel, the ball seat is formed of a relatively soft material such as a fluorine resin, and a protrusion 18 is formed on a ball seat support surface 13 of the valve body 2 made of a hard material so as to bite into the ball seat 4.
摘要:
To provide a handle equipped with a torque limiter capable of preventing application of excessive torque, and a fluid controller provided with the same.An elastic body (7) has a minimum-urging force capable of developing a function desired when the handle is lowered to the lowest position. Disposed in the handle are a transmitting member (8) urged by the elastic body and a transmitted material (10) against which the lower surface of the transmitting material is pressed. The surface of the transmitted material opposed to the transmitting material or the surface of the transmitting material opposed to the transmitted material is formed with serrations along the periphery having inclined surfaces (81, 101) and vertical surfaces (82, 102) which alternately appear. The inclined surfaces of the serrations are upwardly tapered along the direction of rotation in which the cover body descends.
摘要:
A safety valve coupled to a container to release liquid within the container. The container defines an opening surrounded by a container surface. The safety valve includes a housing defining an interior containing a fusible member for actuating a plug between a closed position and an open position to release the liquid upon melting the fusible member. A main body has a first end for coupling to the housing and a second end for coupling to the opening of the container. The main body second end includes a main body surface defining axial bores for receiving screws to fix the main body to the housing. Upon coupling the safety valve to the container, a small gap is formed between the container surface and the main body surface to limit loosening of the screws.
摘要:
The present invention provides a safety valve with improved safety which is to be mounted to a container for releasing gas within the container if the temperature rises. A main body 3 includes a mounting portion 6 inserted in an opening provided in a container T, and a large-diameter portion 5 having an outer diameter larger than that of the mounting portion 6 and being brought into contact with the surface of the container T at an outer peripheral edge portion 5a. A housing 2 is abutted, at a lower surface thereof, against an upper surface of the outer peripheral edge portion 5a of the large-diameter portion of the main body 3. The outer peripheral edge portion 5a of the large-diameter portion of the main body 3 is provided with a plurality of axial through holes 32, and the housing 2 is provided, from the lower surface, with male screw portions 33 conforming to the respective axial through holes 32. The main body 3 and the housing 2 are coupled to each other, through a plurality of male screw members 34 inserted from the lower surface of the outer peripheral edge portion 5a of the large-diameter portion of the main body 3.
摘要:
A safety valve 1 comprises a main body 2, fixed body 2, meltable body 7, movable body 8, biasing member 9, movable plug 10 and plug holding means 11. The fixed body 2 has a small axial passageway 14 communicating with the interior of a container T, and a large axial passageway 15 having an upper-end opening. The movable plug 10 has a small rod portion 18 fitting in the upper end of the small axial passageway 14 of the fixed body 2, an intermediate rod portion 19 providing a clearance therearound inside a lower end portion of the large axial passageway 15 of the fixed body 2, and a large rod portion 20 slidably fitting in an intermediate portion of the large axial passageway 15 of the fixed body 2. The large rod portion 20 of the movable plug 10 has an axial passage 21 extending from the upper end thereof to the lower end thereof, and the intermediate rod portion 19 of the plug 10 is provided with communication passageways 22 having openings in a peripheral surface thereof and communicating with the lower end of the axial passage 21.