Source: https://patents.google.com/patent/EP1736695A1/en
Timestamp: 2020-08-11 11:34:27
Document Index: 557420331

Matched Legal Cases: ['art 15', 'art 15', 'art 15', 'art 24', 'art 55', 'art 55', 'art 55', 'art 28', 'art 44', 'art 44', 'art 44', 'art 44']

EP1736695A1 - Valve, especially for a sanitary fitting - Google Patents
Valve, especially for a sanitary fitting Download PDF
EP1736695A1
EP1736695A1 EP20050405407 EP05405407A EP1736695A1 EP 1736695 A1 EP1736695 A1 EP 1736695A1 EP 20050405407 EP20050405407 EP 20050405407 EP 05405407 A EP05405407 A EP 05405407A EP 1736695 A1 EP1736695 A1 EP 1736695A1
EP20050405407
EP1736695B1 (en
Benjamin Hodel
Weidman Plastics Technology AG
2005-06-24 Application filed by Weidman Plastics Technology AG filed Critical Weidman Plastics Technology AG
2005-06-24 Priority to EP20050405407 priority Critical patent/EP1736695B1/en
2006-12-27 Publication of EP1736695A1 publication Critical patent/EP1736695A1/en
2008-07-09 Publication of EP1736695B1 publication Critical patent/EP1736695B1/en
238000006073 displacement Methods 0.000 claims abstract description 6
The valve has a valve housing (39) in which a valve body (26) is displaceable and preferably rotatably mounted about its longitudinal axis (A). It has at least one valve seat (53, 54) with which the valve body (26) cooperates. With the valve body (26), a button (22) is operatively connected to move the valve body (26) from a basic position to a working position. The valve body (26) is controlled so that it is automatically releasably locked in its displacement from the basic position to the working position in the working position.
The invention relates to a valve, in particular for a sanitary fitting, with a valve housing, in which a valve body is slidably mounted and which has at least one valve seat with which the valve body cooperates for opening and closing a fluid passage and with actuating means, which are operatively connected to the valve body and with which the valve body is displaceable from a basic position to a working position.
A valve of this kind is in the art, for example, from US-A-5,383,604 known. The valve is a diverter valve of a shower head. The valve body can be moved between two positions. In one position is a passage to a jet former and in the other position a passage to a plurality of nozzles for the formation of a shower spray is open. For actuating a two-armed lever is provided, which is arranged below a membrane. There are two key positions provided which are spaced apart and act on one or the other arm of the two-armed lever. In addition, a third position is provided, which makes it possible to maintain a set position without water pressure. For the user is not readily apparent in which position the valve is located.
By the US 2004/0112985 A a valve has become known, which is also a diverter valve in a shower head. The actuating means here have a lever, which goes back to the basic position or rest position after each actuation. For the user is thus not recognizable in which position the valve is or whether it is also set jet or shower. In addition, the valve is automatically switched back to the basic position when stopping the water and thus when interrupting the flow of water.
Another trained as Umstellventil valve is through EP-A-1 132 141 known. Again, the valve body moves after stopping the water automatically by a spring back to the normal position.
Other similar valves are known in the art US 6,290,147 , the US 6,045,062 , the US 5,707,011 and the US 5,145,114 known.
The invention has for its object to provide a further valve of this type, which is particularly suitable for a shower head and avoids the disadvantages mentioned.
The object is achieved in a generic valve according to claim 1. The inventive valve can be operated similar to a ballpoint pen mechanism. In the working position, the valve body is locked and does not automatically turn off when the water is switched to the normal position. The valve is thus stable with or without water pressure in the respective position, so there is no energy required to hold the two positions. The valve according to the invention is therefore also suitable for actuation, for example by electromagnetic means or the like. The energy consumption can be kept small, so that, for example, such electromagnetic actuating means can be supplied with a battery.
A significant advantage of the inventive valve is seen in the fact that when actuated by hand by means of a button actuation with only one actuating point is possible. The valve can do so by pressing on the same Actuation point of the basic position in the working position and be brought from the working position to the basic position. An actuation is thus possible similar to a ballpoint pen. For the operator, such an operation is readily apparent and learnable. In the working position, the valve body is automatically locked so that it does not need to be pressed again and at another point.
Another advantage is seen in that the valve is actuated with a button which is fixedly connected to the valve body and which occupies a position in the working position of the valve body, which is visually distinguishable from the basic position. For example, the key is in the basic position above and in the working position flush with a housing.
According to a development of the invention it is provided that a Umstellteil is provided on the water guide tube, which cooperates with the valve body and which rotates this during the displacement of the basic position to the working position by a predetermined angle. This changeover part could also be arranged on the valve housing. This Umstellteil can be easily and inexpensively manufactured, for example, by molded parts. Preferably, this changeover part is designed so that it cooperates with switching means at a front end of the valve body. The changeover part can be realized very simply and inexpensively as a tooth-shaped projections on the inside of the valve housing.
According to a development of the invention it is provided that the valve has a switching element in which the valve body is slidably mounted and has the control surfaces which cooperate with said locking means and hold the valve body in the working position against the force of a spring element. Such a switching element can be made particularly advantageous as a sleeve-shaped part. This part is connected according to an embodiment of the invention with the valve housing, for example, inserted into a recess of the valve housing.
According to a development of the invention, it is provided that the control surfaces on the switching element are formed so that they the valve body before reaching the Turn working position by a predetermined angle, so that when a further operation, the locking of the valve body is released and the valve body is displaceable to its normal position. The release of the locking of the valve body in the working position is carried out according to this development by a repeated actuation, wherein the valve body is displaced in the same direction. The release can be achieved here with a relatively small displacement of the valve body.
According to a development of the invention, it is provided that the valve body has a valve disk, which is mounted axially displaceably and / or rotatably on a shaft of the valve body. This makes it possible to solve the working position by over-pressing the valve body again. It is particularly expedient if, according to a development of the invention, the valve disk is sealed off from the shaft. The sealing is preferably carried out with a sealing ring which is inserted into a groove of the shank.
The inventive valve is according to an embodiment of the invention, a changeover valve, wherein the valve body rests in the home position on a first valve seat and in the working position on a second valve seat. In the one position of the valve body, a first passage and in the second position, a second passage is free. However, the valve according to the invention can also be, for example, a simple shut-off valve with only one valve seat. In the basic position, the valve is then closed and opened in the working position.
The invention also relates to a sanitary fitting with a valve according to the invention. This preferably has at least one shower outlet and at least one jet outlet. With the valve, a changeover between jet and shower is particularly reliable and easy.
The water outlet is designed according to a development of the invention so that the valve is arranged in a housing and that the actuating means is a button which protrudes in the basic position on the housing and in the working position with the outside of the housing is substantially flush. For the user is thus the working position visually distinguishable from the basic position. Since, as already mentioned, an actuation on only a single actuation point is possible, this results in a water outlet, which can be actuated very simply and safely.
The water outlet is formed according to a development of the invention as a shower head. The shower head can be arranged on a shower fitting or on a fitting for a water basin.
An embodiment of the invention will be explained in more detail with reference to the drawing. Show it:
a longitudinal section through a water outlet with a valve according to the invention,
3 is a perspective view of the water outlet according to FIG. 1, with parts of the valve being pulled apart;
a further view of the water outlet with the valve in the disassembled state,
a view of the valve body,
another view of the valve body,
another spatial view of the valve body,
an axial view of the front end of the valve body,
a spatial view of the valve body,
a view of a switching element,
a section through the switching element according to FIG 5a,
a spatial view of the switching element,
another spatial view of the switching element,
a view of the valve housing,
a section through a part of the water outlet, wherein the valve is shown in the working position and
a section according to Figure 7, wherein the valve is in a so-called overpressed position.
1 shows a shower head 1, which has a water supply pipe 3 in a housing 2, which has a connection thread 5 for connecting the shower head 1 to a flexible water pipe, not shown here, at an end protruding from the housing 2. The shower head 1 is provided in particular for a pull-out shower, in which said pipe is guided in a fitting so that the shower head 1 can be pulled out by hand.
The water guide tube 3 is sealed with a sealing ring 6 relative to the housing 2 and has at a front end a funnel-shaped connecting part 15, which is sealed with a sealing ring 16 relative to the water guide tube 3. The connecting part 15 connects the water guide tube 3 with a known jet former 19. The jet former 19 is centrally inserted into a mouth plate 18, which is connected via a thread 21 releasably connected to the housing 2. At this mouth plate 18, a plurality of nozzles 20 are annularly arranged to form a shower spray, as shown in particular in FIG 2. Such nozzles 20 are known per se to those skilled in the art.
The water guide tube 3 has a water channel 4, which can be connected via a valve V optionally via a passage 12 with the jet former 19 or via a passage 13 with the nozzles 20. The passage 12 is connected via a passage 17 of the connecting part 15 with the shower insert 19. The valve V is a diverter valve, in which, in the basic position according to FIG. 1, the water channel 4 is connected to the nozzles 20. In the other position, which is referred to here as working position, the channel 4 is connected to the jet former 19.
The valve V has a valve housing 39, which is sealed in an opening 14 of the water guide tube 3. The opening 14 is formed by a wall 8, which also has openings 7, 9 and 11. The opening 7 forms an entrance to a space 10 and the opening 11 an exit of the space 10 into the passage 12. The opening 9 connects the space 10 with the passage 13. The wall 8 is a part of the water guide pipe 3. It forms a valve seat 53, with which a valve body 26 cooperates. The valve housing 39 forms a further valve seat 54, with which the valve body 26 also cooperates. On the valve housing 39, a switching element 25 is arranged, in which the valve body 26 is limited in its longitudinal direction displaceable. With a rubber-elastic sealing element 38, the valve body 26 is sealed relative to the housing 39 and the switching element 25. The valve V is inserted according to Figure 3 via an elongated opening 43 of the housing 2 in this. The opening 43 receives a key 22. The button 22 is designed as a push button, which is movable in the longitudinal direction of the valve body 26. In principle, the key 22 could for example be designed as a one-armed pivot lever.
The valve body 26 has at a front end a spherical connecting part 24 which is rotatably engaged in a sleeve-shaped holding part 55 of the key 22. The sleeve-shaped holding part 55 is integrally formed on an inner side of the button 22. The valve body 26 is thus firmly but axially rotatably connected to the key 22. In the illustrated position of the valve V is according to Figure 1, a valve plate 27 of the valve body 26 to the valve seat 54 at. Above the holding part 55 is located on the outside of the key 22, a touch point 37, to which the key 22 can be actuated by hand. The operation is carried out by pressing the key 22. The key 22 passes from the basic position shown in Figure 1 in the working position shown in Figure 7. The valve body 26 is displaced in this case in its longitudinal direction against the retroactive force of a first spring 41. As will be explained in more detail below, the valve body 26 is locked in this position. The button 22 also remains in the position shown in Figure 7, as it is firmly connected to the valve body 26 as explained. As can be seen, the button 22 is with its outer side substantially flush with the outside of the housing 2. In this position, the water channel 4 is connected to the jet former 19. The working position can be solved by pressing the button 22 in the same direction inside is pivoted to the position shown in Figure 8 by a relatively small angle. When the key 22 is released, the valve body 26 then automatically returns to the basic position according to FIG.
The valve body 26 has a substantially cylindrical shaft 32 which has on its outer side in the vicinity of the connecting part 28, two opposite switching cam 29. These have each according to Figure 4c an edge 30 which are directed radially outward and the connecting member 28 toward. The two switching cams 29 are guided displaceably in the direction of a longitudinal axis A in a star-shaped recess 50 of the switching element 25 (FIGS. 5a to 5c). In the recess 50 control surfaces 49 are arranged, which cooperate with the switching cam 29. These control surfaces 49 are located on the inside of a cylindrical projection 48 of the switching element 25. At the base 48, a flange 46 is formed, with which the switching element 25 is fixed to the valve housing 39. In a passage 47, the above-mentioned sealing element 38 is inserted. According to FIG. 5c, said control surfaces 49 each form notch-like depressions into which a switching cam 29 engages in each case in the working position of the valve V. The valve body 26 is hereby tensioned against these control surfaces 49 due to the tension of said first spring 41. The control surfaces 49 are arranged asymmetrically so as to cause a certain rotation about the longitudinal axis of the valve body 26 with each engagement on the valve body 26.
The valve body 26 has at its front end switching teeth 34 which have buttons 35 which are inclined to the longitudinal axis A, as shown for example in Figures 4b and 4e. These switching teeth 34 are arranged crown-shaped around a recess 52 and work with a changeover 44 together, which is integrally formed on an inner side of the water guide tube 3. The changeover part 44 is formed by projecting cams, between which a pin 51 is arranged, which engages in the recess 52. Thereby, the front end of the valve body 26 on the pin 51 and thus on the water guide tube 3 in the direction of the longitudinal axis A is axially displaceable and guided in the longitudinal direction of the valve body 26 rotatable. Due to this guide 26 in a displacement of the valve body in the transition from the basic position to the working position, the shift teeth 34 are brought into engagement with the changeover part 44. This will be explained in more detail below.
If the valve body 26 is displaced from the position shown in FIG. 1 in the direction of the longitudinal axis A into the position shown in FIG. 7 by actuating the key 22, the two opposing switching cams 29 leave the recess 50. The valve body 26 thus becomes in its longitudinal axis A. moved far until the two switching cam 29 have left the recess. Immediately thereafter, the switching teeth 34 engage with the changeover part 44, whereby the valve body 26 is rotated by an angle of for example 30 °. If now the key 22 is released, the valve body 26 is displaced back by a short distance in the direction of its longitudinal axis A due to the tension of the first spring 41. Due to said rotation of the valve body 26, the switching cams 29 now engage with the control surfaces 49 of the switching element 25. During this procedure, the valve body 26 is now again rotated by a predetermined angle due to said asymmetry. The two switching cams 29 are now applied to the control surfaces 49, so that they lock the valve body 26 in the position shown in Figure 7. The valve body 26 can thus no longer return to the starting position shown in FIG. The key 22, which is connected to the valve body 26, remains due to this locking also in the position shown in Figure 7. The valve plate 27 rests against the valve seat 53, wherein the said second spring 42 biases the valve plate 27 against this valve seat 53. The tensioned spring 42 is in this case supported on a ring 31 which is inserted into a not designated here groove 32 of the shaft. The seal between valve seat 53 and valve plate 27 is ensured by a sealing ring 56, which is inserted into a groove 33 (FIG. 4 a) of the valve disk 27. The tension of the spring 42 can also be achieved by another suitable pressing element.
In the position of the valve body 26 shown in FIG. 7, the water passes from the water channel 4 to the jet former 19. The passage to the nozzles 20 is closed by the valve disk 27 bearing against the valve seat 53. Now, if the water is turned off at a tap, not shown here, so that no more water flows through the water channel 4, the valve body 26 remains in the position shown in Figure 7. Also the key 22 remains in the position shown. If the tap not shown here is opened again, then water flows again from the water channel 4 to the shower insert 19.
To switch the valve V back into the basic position shown in Figure 1, the key 22 is pivoted from the position shown in Figure 7 in the position shown in Figure 8. Accordingly, the valve body 26 is moved inward. The two springs 42 and 41 are hereby further tensioned and the pin 51 penetrates further into the recess 52 a. The valve plate 27 can not join in this movement and remains on the valve seat 53. The valve plate 27 is therefore limitedly displaceable on the valve body 26, wherein a sealing ring 57 bears against an opening 40 of the valve plate 27. In the position according to FIG. 1, the spring 41 with the ring 36 biases the valve disk 27 against the valve seat 54. The shaft 32 of the valve body 26 shifts correspondingly relative to the valve disk 27 from the position shown in FIG. 7 into the position shown in FIG. Simultaneously with said displacement of the valve body 26 in the direction of the longitudinal axis A of the valve body 26 is rotated by the engagement of the shift teeth 34 with the changeover part 44 by a certain angle about its longitudinal axis A. The switching cam 29 are rotated accordingly, so that when releasing the key 22, these switching cam 29 no longer engage with the control surfaces 49 of the switching element 25. When releasing the button 22 thus the valve body 26 is moved together with the key 22 by the voltage of the first spring 41 back into the position shown in Figure 1. The valve plate 27 shifts here on the shaft 32 and also returns to the position shown in Figure 1, in which it rests against the valve seat 54 and thus the passage from the water channel 4 to the passage 12 interrupts. The water now flows from the water channel 4 through the space 10 in the passage 13 and thus to the nozzle 20. The key 22 is now in the above position as shown in Figure 1. This protruding position can be clearly distinguished visually from the depressed position shown in FIG.
The button 22 may also be replaced by another actuating means. For example, the valve body 26 can be moved with a known electromagnetic drive as explained above. Since both mentioned positions are stable, only one power is required to change over. Because of such a drive is For example, a non-contact operation possible. In principle, other drive means, such as hydraulic or pneumatic actuators and the like may be provided to actuate the valve body 26 as explained above.
The valve V is a diverter valve in the embodiment shown. In principle, however, the valve V can also be another valve, for example a shut-off valve. In this case, for example, the valve seat 53 is missing. In the position of the valve V shown in FIG. 1, the single passage is then shut off and in the position shown in FIG. 7, the passage is open.
Water guide tube
shift tooth
changeover portion
Valve, in particular for a sanitary fitting, with a valve housing (39) in which a valve body (26) is displaceably mounted and which has at least one valve seat (53, 54) with which the valve body (26) cooperates to open and close a fluid passage , and with actuating means (22), which are operatively connected to the valve body (26) and with which the valve body (26) is displaceable from a basic position to a working position, characterized in that locking means (29, 49) are provided, which the valve body (26) automatically releasably lock in the working position.
Valve according to claim 1, characterized in that the valve body (26) is rotated to its locking about its longitudinal axis (A).
Valve according to claim 1 or 2, characterized in that the valve body (26) for releasing the locking in its longitudinal axis (A) to the valve seat (53, 54) is moved towards.
Valve according to one of claims 1 to 3, characterized in that the valve body (26) is rotatably connected to the actuating means (22).
Valve according to one of claims 1 to 4, characterized in that a Umstellteil (44) is arranged on a water guide tube (3) which cooperates with the valve body (26) and this at its displacement from the basic position to the working position by a predetermined angle twisted.
Valve according to claim 5, characterized in that the changeover part (44) cooperates with switching means (34) at a front end of the valve body (26).
Valve according to claim 6, characterized in that the switching means (34) at the front end of the valve body (26) have tooth-shaped projections which project axially.
Valve according to one of claims 5 to 7, characterized in that the Umstellteil (44) are cam-shaped projecting parts, between which for guiding the valve body (26) a pin (51) protrudes into a recess (52) of the valve body (26 ) intervenes.
Valve according to one of claims 1 to 8, characterized in that on the valve housing (39) a switching element (25) is arranged, in which the valve body (26) is displaceable and the control surfaces (49), which with the locking means (29) cooperate, said locking means (29) on the valve body (26) are arranged and hold the valve body (26) in the working position against the force of a spring element (41).
Valve according to claim 9, characterized in that the switching element (25) is sleeve-shaped.
Valve according to claim 9 or 10, characterized in that the switching element (25) with sealing means (38) relative to the valve body (26) is sealed.
Valve according to one of claims 9 to 11, characterized in that the control surfaces (49) of the switching element (25) are formed so that they rotate the valve body (26) before reaching the working position by a predetermined angle, so that in a second Actuation of the locking of the valve body (26) is released and the valve body (26) is displaceable to its normal position.
Valve according to one of claims 1 to 12, characterized in that the valve body (26) is displaceable against the retroactive force of a spring element (41) from the basic position to the working position.
Valve according to one of claims 1 to 13, characterized in that the valve body (26) has a valve plate (27) which is mounted on a shaft (32) of the valve body (26) axially displaceable and / or rotatable.
Valve according to claim 14, characterized in that the valve disk (27) is displaceably sealed with respect to the shaft (32).
Valve according to claim 14 or 15, characterized in that on the shaft (32) of the valve body (26) a spring element (42) is arranged, which is operatively connected to the valve disc (27) and the valve disc (27) in the working position of the valve (V) clamped against a valve seat (53).
Valve according to one of claims 1 to 16, characterized in that it is a diverter valve and that the valve body (26) in the basic position closes a first passage and in the working position a second passage.
Sanitary fitting with a valve (V) according to one of claims 1 to 17.
Sanitary fitting according to claim 18, characterized in that the valve (V) in a housing (2) is arranged and that the actuating means (22) have a button which projects in the basic position on the housing (2) and in the working position with the outside of the housing (2) is substantially flush.
Sanitary fitting according to claim 18 or 19, characterized in that it comprises a shower head, in which the valve (V) is arranged.
Shower head with a valve (V) according to one of claims 1 to 17.
EP20050405407 2005-06-24 2005-06-24 Valve, especially for a sanitary fitting Expired - Fee Related EP1736695B1 (en)
EP20050405407 EP1736695B1 (en) 2005-06-24 2005-06-24 Valve, especially for a sanitary fitting
DE200550004639 DE502005004639D1 (en) 2005-06-24 2005-06-24 Valve, in particular for a sanitary fitting
AT05405407T AT400756T (en) 2005-06-24 2005-06-24 Valve, especially for a sanitary armature
ES05405407T ES2308419T3 (en) 2005-06-24 2005-06-24 Valve, especially for a sanitary faucet.
US11/209,655 US7341239B2 (en) 2005-06-24 2005-08-24 Valve in particular for a sanitary fitting
CNA2006100829956A CN1884729A (en) 2005-06-24 2006-06-23 Valve, especially for a sanitary fitting
EP1736695A1 true EP1736695A1 (en) 2006-12-27
EP1736695B1 EP1736695B1 (en) 2008-07-09
ID=35045000
EP20050405407 Expired - Fee Related EP1736695B1 (en) 2005-06-24 2005-06-24 Valve, especially for a sanitary fitting
US (1) US7341239B2 (en)
EP (1) EP1736695B1 (en)
CN (1) CN1884729A (en)
AT (1) AT400756T (en)
DE (1) DE502005004639D1 (en)
ES (1) ES2308419T3 (en)
US7509972B2 (en) * 2005-07-07 2009-03-31 Parker-Hannifin Corporation Pneumatic valve with lockout
WO2009006755A1 (en) * 2007-07-09 2009-01-15 Huasong Zhou A switching unit for pushbutton of kitchen water faucet
JP5041344B2 (en) * 2008-02-14 2012-10-03 Ｔｏｔｏ株式会社 Faucet device and method of manufacturing faucet equipment having the same
DE102008038730A1 (en) * 2008-08-12 2010-02-18 Neoperl Gmbh Sanitary functional unit
DE102009008194B4 (en) 2009-02-02 2011-07-28 Hansgrohe AG, 77761 Sanitary shutdown or changeover valve
US8276833B2 (en) * 2010-11-04 2012-10-02 Globe Union Industrial Corp. Handheld and multi-section water distributor
US8424783B2 (en) * 2011-01-21 2013-04-23 Somei Huang Wall mounted shower head
WO2013091463A1 (en) * 2011-12-23 2013-06-27 厦门松霖科技有限公司 Button switching waterway valve group
CN107558541B (en) * 2016-07-01 2019-09-17 厦门松霖科技股份有限公司 The Quick Release quick-assembling connecting structure of outlet terminal and jet regulator
CN106362883B (en) * 2016-08-30 2019-02-12 厦门建霖健康家居股份有限公司 One kind is with the pause multi-functional module of water
CN207042695U (en) * 2017-07-10 2018-02-27 恺霖卫浴科技（厦门）有限公司 A kind of gondola water faucet for being easily changed water flow
WO2019100206A1 (en) * 2017-11-21 2019-05-31 沛乐迪(厦门)卫浴有限公司 Labour-saving button water-saving valve
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EP1061299A2 (en) * 1999-06-16 2000-12-20 Friedrich Grohe AG &amp; Co. KG Diverter valve
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ITMN20020013A1 (en) * 2002-04-04 2003-10-06 Amfag Spa Pull-out spray kitchen
US6942195B2 (en) * 2003-11-25 2005-09-13 Chih-Hung Kao Valve for a water faucet
2005-06-24 DE DE200550004639 patent/DE502005004639D1/en active Active
2005-06-24 ES ES05405407T patent/ES2308419T3/en active Active
2005-06-24 AT AT05405407T patent/AT400756T/en not_active IP Right Cessation
2005-06-24 EP EP20050405407 patent/EP1736695B1/en not_active Expired - Fee Related
2005-08-24 US US11/209,655 patent/US7341239B2/en not_active Expired - Fee Related
2006-06-23 CN CNA2006100829956A patent/CN1884729A/en not_active Application Discontinuation
ES2308419T3 (en) 2008-12-01
AT400756T (en) 2008-07-15
DE502005004639D1 (en) 2008-08-21
US20060289818A1 (en) 2006-12-28
CN1884729A (en) 2006-12-27
US7341239B2 (en) 2008-03-11
EP1736695B1 (en) 2008-07-09
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US6845960B2 (en) 2005-01-25 Hydraulic and pneumatic operative diaphragm valve
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