JP2001327622A - Simultaneous opening valve - Google Patents
Simultaneous opening valveInfo
- Publication number
- JP2001327622A JP2001327622A JP2000150710A JP2000150710A JP2001327622A JP 2001327622 A JP2001327622 A JP 2001327622A JP 2000150710 A JP2000150710 A JP 2000150710A JP 2000150710 A JP2000150710 A JP 2000150710A JP 2001327622 A JP2001327622 A JP 2001327622A
- Authority
- JP
- Japan
- Prior art keywords
- sheet rubber
- shape
- valve
- retaining material
- release valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Lift Valve (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、スプリンクラー設
備や泡消火設備等の消火設備に使用する一斉開放弁に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous release valve used for fire extinguishing equipment such as sprinkler equipment and foam fire extinguishing equipment.
【0002】[0002]
【従来の技術】従来の一斉開放弁を使用した消火設備
は、駐車場のように火災が発生して車中のガソリンに引
火すると一気に火が燃え広がる場所や、あるいは劇場の
ような天井が高い位置にある建物に、閉鎖型スプリンク
ラーヘッドを設置しても火災の熱気流が閉鎖型スプリン
クラーヘッドに到達するまでに火災が拡大してしまうよ
うな場所に設置される。2. Description of the Related Art A conventional fire extinguishing system using a simultaneous release valve is a place where a fire spreads when a fire occurs such as a parking lot and gasoline in a car is ignited, or a ceiling such as a theater is high. The building is located in a location where even if the closed sprinkler head is installed, the fire spreads before the hot air flow of the fire reaches the closed sprinkler head.
【0003】このような建物に設置する消火設備の例と
して、火災を感知してから防護区画に一斉に消火液を散
布させて消火が行えるように、一斉開放弁と開放型ヘッ
ドを用いた図5の消火設備が設置される。[0003] As an example of a fire extinguishing system installed in such a building, a diagram using a simultaneous opening valve and an open type head so that a fire extinguishing solution can be sprayed all at once to a protection compartment after a fire is detected to extinguish a fire. Five fire extinguishing systems will be installed.
【0004】図5における一斉開放弁1の一次側室3は
水源5に通じており、途中にポンプ6や圧力調整タンク
7等が設置され、一次側配管8の中には消火液が充水さ
れている。二次側室4には開放型のスプリンクラーヘッ
ド又は泡ヘッド9等(以下「開放型ヘッド」という)が
設置され、常時一斉開放弁1の弁は制御室23内に封入
された圧縮流体及び圧縮バネ26の力で閉塞されてお
り、二次側室4には消火液が流出しない構造となってい
る。[0005] The primary side chamber 3 of the simultaneous release valve 1 in FIG. 5 is connected to a water source 5, and a pump 6, a pressure adjusting tank 7 and the like are provided on the way, and a fire extinguishing liquid is filled in a primary side pipe 8. ing. An open-type sprinkler head or a foam head 9 (hereinafter referred to as “open-type head”) is installed in the secondary side chamber 4, and the valve of the simultaneous open valve 1 is always a compressed fluid and a compression spring sealed in the control chamber 23. The fire extinguisher is closed by the force of 26 and does not flow out into the secondary side chamber 4.
【0005】上記の一斉開放弁1は、制御室23に接続
された感知ヘッド17の作動によって制御室23内の圧
力が低下することにより弁が開かれ、二次側室4に接続
された開放型ヘッド9より消火液が散布され消火を行
う。The simultaneous open valve 1 is opened when the pressure in the control chamber 23 is reduced by the operation of the sensing head 17 connected to the control chamber 23, and the simultaneous open valve 1 is opened. Fire extinguishing liquid is sprayed from the head 9 to extinguish the fire.
【0006】ところで消火設備は何時起こるか判らない
火災時にその機能を十分発揮できるように定期的に点検
することが義務付けられており、そのため一斉開放弁の
二次側には、開放型ヘッドに消火液を送らずに弁の作動
を試験するために、バタフライ弁30を一斉開放弁1の
二次側室に埋め込んで設け、試験時には該バタフライ弁
30を閉じて、開放型ヘッド9が接続された配管に消火
液が流れないようにしている。However, fire extinguishing equipment is required to be inspected periodically so that its function can be fully exhibited in the event of a fire when it is difficult to know when the fire will occur. In order to test the operation of the valve without sending the liquid, a butterfly valve 30 is provided so as to be embedded in the secondary side chamber of the simultaneous opening valve 1, and at the time of the test, the butterfly valve 30 is closed and the piping to which the open type head 9 is connected. Do not allow fire extinguishing fluid to flow.
【0007】該バタフライ弁30の構成は、一斉開放弁
1の二次側室4の内周にゴムで形成した筒状のシートゴ
ム31を埋設したもので、該シートゴム31の中間部分
34は軸方向に絞られており流路が狭くなっている。The butterfly valve 30 has a structure in which a cylindrical sheet rubber 31 made of rubber is embedded in the inner periphery of the secondary side chamber 4 of the simultaneous opening valve 1, and an intermediate portion 34 of the sheet rubber 31 is a shaft. And the flow path is narrow.
【0008】該バタフライ弁30の弁棒35は、シート
ゴム31上に一斉開放弁の二次側室4の中心と直交する
よう設け、該弁棒35の一端はシートゴム31及び一斉
開放弁の本体を貫通して外部に突出しており、端部にハ
ンドルを取付けることによって弁棒35を回転すること
が可能である。また該弁棒35の二次側室4と直交して
いる部分に、該二次側室4の流路断面形状と相似な平板
を固着し弁体36を設置する。該弁体36は弁棒35の
回転により流路の開閉が可能である。A valve stem 35 of the butterfly valve 30 is provided on the seat rubber 31 so as to be orthogonal to the center of the secondary chamber 4 of the simultaneous opening valve. One end of the valve stem 35 is connected to the seat rubber 31 and the main body of the simultaneous opening valve. , And projecting to the outside, the valve stem 35 can be rotated by attaching a handle to the end. Further, a flat plate similar to the cross-sectional shape of the flow passage of the secondary chamber 4 is fixed to a portion of the valve rod 35 orthogonal to the secondary chamber 4, and a valve element 36 is installed. The valve body 36 can open and close the flow path by rotation of the valve rod 35.
【0009】同様に、一斉開放弁1の一次側室3にもバ
タフライ弁30が設置されている。Similarly, a butterfly valve 30 is provided in the primary chamber 3 of the simultaneous opening valve 1.
【0010】[0010]
【発明が解決しようとする課題】しかしながら、上記の
一斉開放弁は図6に示すように弁体36の開閉操作の繰
り返しや流水時の水流の勢いによりシートゴム31にめ
くれや変形が生じ、弁体36閉止時においては消火液の
封止性能が損なわれたり、また弁体36開放時において
は流水時に圧力損失が増大したりすることがある。However, as shown in FIG. 6, the simultaneous opening and closing operation of the sheet rubber 31 is caused by repeated opening and closing operations of the valve element 36 and by the momentum of the flowing water, causing the sheet rubber 31 to be turned or deformed. When the body 36 is closed, the sealing performance of the fire extinguishing liquid may be impaired, and when the valve body 36 is open, the pressure loss may increase when flowing water.
【0011】そこで本発明では、一斉開放弁に埋設され
たバタフライ弁における、シートゴムのめくれや変形を
防止した一斉開放弁の提供を目的としている。Accordingly, an object of the present invention is to provide a simultaneous release valve which prevents the sheet rubber from being turned up or deformed in a butterfly valve embedded in the simultaneous release valve.
【0012】[0012]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項1記載の発明は、消火設備に使用する一斉
開放弁の一次側室または二次側室または両室にバタフラ
イ弁が一体に埋め込まれており、該バタフライ弁のシー
トゴムの外周に保形材を固着したものである。In order to achieve the above object, according to the first aspect of the present invention, a butterfly valve is integrated with a primary side chamber, a secondary side chamber, or both chambers of a simultaneous release valve used for a fire extinguishing system. The butterfly valve is embedded, and a shape-retaining material is fixed to the outer periphery of the sheet rubber of the butterfly valve.
【0013】一斉開放弁内に埋め込まれたバタフライ弁
の弁体開閉操作の繰り返しや流水時において、シートゴ
ムと保形材が固着されているのでシートゴムにめくれや
変形が生じず、封止性能が損なわれたり、圧力損失が増
大することがない。When the butterfly valve embedded in the simultaneous release valve is repeatedly opened and closed, or when water is flowing, the sheet rubber and the shape-retaining material are fixed, so that the sheet rubber is not turned or deformed, and the sealing performance is improved. And the pressure loss does not increase.
【0014】[0014]
【発明の実施の形態】本発明の実施の形態として、上記
保形材の形状をシートゴムの外周と同じか僅かに大径な
内径を有する円筒としたものが考えられる。該円筒は、
シートゴムの形成時に円筒とシートゴム材とを密着させ
て一体形成することも可能である。DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, it is conceivable that the shape-retaining material is a cylinder having an inner diameter that is the same as or slightly larger than the outer circumference of the sheet rubber. The cylinder is
At the time of forming the sheet rubber, the cylinder and the sheet rubber material can be integrally formed by bringing the cylinder into close contact with the sheet rubber material.
【0015】また上記の円筒は、板材をロール状に曲げ
て形成し、継目部分は溶接、ろう付、または図3のよう
に継目部にあたる板材の2辺に嵌合部分を形成して嵌め
合わせにより接続してもよい。The above-mentioned cylinder is formed by bending a plate material into a roll shape, and the seam portion is fitted by welding, brazing, or forming a fitting portion on two sides of the plate material corresponding to the seam portion as shown in FIG. May be connected.
【0016】あるいは板材をロール状に加工後、もとの
形状に復元しないものであれば継目を接続しなくてもよ
い。またシートゴムの外周と同じか僅かに大径な内径を
有するパイプ材を適切な長さに切断して用いることも可
能である。Alternatively, the joint may not be connected if the plate material is not processed into the original shape after being processed into a roll shape. It is also possible to cut a pipe material having an inner diameter equal to or slightly larger than the outer circumference of the sheet rubber to an appropriate length and use it.
【0017】保形材の形状は円筒形状に限らず、図4
(a)のように複数の長方形の板をシートゴム外周に固
着させたり、図4(b)のようにシートゴム外周に細長
い板を螺旋状に巻きつけて固着させることも可能であ
る。The shape of the shape-retaining material is not limited to a cylindrical shape.
As shown in FIG. 4A, a plurality of rectangular plates can be fixed to the outer periphery of the sheet rubber, or as shown in FIG. 4B, an elongated plate can be spirally wound around the outer periphery of the sheet rubber and fixed.
【0018】上記の保形材を接着剤にてシートゴムに固
着させれば、シートゴムと保形材が密着するのでシート
ゴムが変形することはない。また、保形材を介さずにシ
ートゴムと一斉開放弁の本体内壁とを直接接着すること
も可能であり、その際耐水性を有し再剥離が可能な接着
剤を用いるとシートゴムを一斉開放弁内に接着した後で
もシートゴムを取外すことが可能になりメンテナンス性
が良くなる。If the above-described shape-retaining material is fixed to the sheet rubber with an adhesive, the sheet rubber and the shape-retaining material adhere to each other, so that the sheet rubber is not deformed. It is also possible to directly bond the sheet rubber to the inner wall of the simultaneous release valve without using a shape-retaining material. In this case, if a water-resistant and re-peelable adhesive is used, the sheet rubber can be simultaneously bonded. The sheet rubber can be removed even after bonding inside the opening valve, so that maintenance is improved.
【0019】シートゴムと保形材を密着させるために、
図2のようにシートゴムの外周に複数の突起を設け、保
形材にもシートゴムの突起と嵌合する穴を穿設してお
き、該突起と穴によりシートゴムと保形材を嵌着させる
ことも可能である。In order to make the sheet rubber and the shape-retaining material adhere to each other,
As shown in FIG. 2, a plurality of protrusions are provided on the outer periphery of the sheet rubber, and holes are formed in the shape-retaining material to be fitted with the protrusions of the sheet rubber, and the sheet rubber and the shape-retaining material are fitted by the protrusions and holes. It is also possible to wear.
【0020】上記何れの構成の保形材において、該保形
材がシートゴムの弁棒貫通穴を塞いでしまう場合は、シ
ートゴムと同様に弁棒貫通穴を穿設しておく必要があ
る。In any of the above shape retaining materials, when the shape retaining material closes the valve stem through hole of the sheet rubber, it is necessary to form the valve stem through hole like the sheet rubber. .
【0021】[0021]
【実施例】以下、この発明の第1実施例を図1、図2を
参照して説明する。図1は本発明の一斉開放弁を用いた
消火設備であり、図2は図1の一斉開放弁のバタフライ
弁部分拡大図である。尚、従来例と構成が同じ部分につ
いては、同符号を付して詳細な説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a fire extinguishing system using the simultaneous opening valve of the present invention, and FIG. 2 is a partially enlarged view of a butterfly valve of the simultaneous opening valve of FIG. The same components as those in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.
【0022】本発明の一斉開放弁を用いた消火設備及び
一斉開放弁の機構は、従来例と同じであるので消火設備
に関する説明は省略する。従来例との相違点としては、
バタフライ弁のシートゴムの外周に保形材を設けたこと
である。The fire extinguishing equipment using the simultaneous opening valve and the mechanism of the simultaneous opening valve according to the present invention are the same as those of the conventional example, so that the explanation of the fire extinguishing equipment is omitted. The difference from the conventional example is
That is, a shape retaining material is provided on the outer periphery of the sheet rubber of the butterfly valve.
【0023】図2に示すバタフライ弁30のシートゴム
31の外周には、複数の突起32・・・が設けられてお
り、該突起の上部33は端部が末広がりのラッパ形状を
している。A plurality of projections 32 are provided on the outer periphery of the seat rubber 31 of the butterfly valve 30 shown in FIG. 2, and an upper part 33 of the projection has a trumpet shape whose end part is widened.
【0024】上記シートゴム31と嵌合する保形材40
は円筒状であり、前述シートゴム31の突起32・・・
と同じ位置に穴41・・・が穿設されている。該穴41
の形状も、前記突起32の上部33と同様に円筒外周面
に向かって末広がりのラッパ形状となっている。The shape-retaining material 40 fitted with the sheet rubber 31
Are cylindrical, and the projections 32 of the sheet rubber 31 are.
Holes 41... Are formed at the same positions as in FIG. The hole 41
Also has a flared shape that widens toward the outer peripheral surface of the cylinder in the same manner as the upper portion 33 of the projection 32.
【0025】上記のシートゴム31と保形材40を嵌合
させるには、シートゴム31を保形材40の円筒内に挿
入させ、シートゴム31の突起32と保形材40の穴4
1が合うように位置を調整し、全ての突起32・・・と
穴41・・・を嵌め合わせる。To fit the sheet rubber 31 and the shape-retaining material 40, the sheet rubber 31 is inserted into the cylinder of the shape-retaining material 40, and the projections 32 of the sheet rubber 31 and the holes 4 of the shape-retaining material 40 are inserted.
1 are adjusted so that all the projections 32... And the holes 41.
【0026】このような構成としたことで、シートゴム
31と保形材40が密着し、前述のバタフライ弁30に
設置された弁体36の開閉操作の繰り返しや流水時にお
いて、シートゴム31にめくれや変形が生じることが無
い。またシートゴム31の突起32と保形材40の穴4
1が嵌め合った際に、保形材40の外面にシートゴム3
1の突起32が突出しないので、一斉開放弁1の内面と
保形材40の外面との間にも隙間が生じることは無い。With this configuration, the sheet rubber 31 and the shape-retaining material 40 come into close contact with each other, and when the opening / closing operation of the valve body 36 installed on the butterfly valve 30 is repeated or when flowing water, the sheet rubber 31 is attached to the sheet rubber 31. No turning or deformation occurs. Also, the projection 32 of the sheet rubber 31 and the hole 4 of the shape-retaining material 40
When the rubber mats 1 are fitted together, the sheet rubber 3
Since the one projection 32 does not project, there is no gap between the inner surface of the simultaneous release valve 1 and the outer surface of the shape retaining material 40.
【0027】さらにシートゴム31が弁体36の開閉等
で磨耗した際には、保形材40を取外してシートゴム3
1のみを交換し、保形材40は継続して使用できるので
経済的である。Further, when the seat rubber 31 is worn due to opening and closing of the valve body 36, the shape retaining material 40 is removed and the seat rubber 3 is removed.
Only one is replaced, and the shape-retaining material 40 can be used continuously, which is economical.
【0028】本発明の一斉開放弁を用いた消火設備の作
用及び点検については従来例と同様であるので説明は省
略する。The operation and inspection of the fire extinguishing system using the simultaneous opening valve of the present invention are the same as those of the conventional example, so that the description is omitted.
【0029】[0029]
【発明の効果】以上説明したように本発明によれば、一
斉開放弁に埋設されたバタフライ弁のシートゴムに保形
材を設置したことで、該シートゴムのめくれや変形が防
止でき、それにより封止性能が損なわれたり、圧力損失
が増大することがない。またシートゴムと保形材は取外
し可能なので、シートゴムが磨耗した際にはシートゴム
のみ交換すればよいという経済面での効果も有する一斉
開放弁である。As described above, according to the present invention, since the shape retaining material is installed on the sheet rubber of the butterfly valve embedded in the simultaneous release valve, the sheet rubber can be prevented from being turned up or deformed. Thereby, the sealing performance is not impaired and the pressure loss does not increase. Further, since the sheet rubber and the shape-retaining material are removable, the simultaneous opening valve has an economical effect that only the sheet rubber needs to be replaced when the sheet rubber is worn.
【図1】 本発明の一斉開放弁を用いた消火設備FIG. 1 is a fire extinguishing system using a simultaneous release valve of the present invention.
【図2】 図1の一斉開放弁のバタフライ弁部分拡大図FIG. 2 is an enlarged view of a butterfly valve part of the simultaneous opening valve of FIG. 1;
【図3】 保形材の継目部分の形状例Fig. 3 Shape example of joint part of shape-retaining material
【図4】 保形材の形状例Fig. 4 Shape example of shape-retaining material
【図5】 従来の一斉開放弁を用いた消火設備FIG. 5: Fire extinguishing equipment using a conventional simultaneous release valve
【図6】 従来の一斉開放弁のシートゴムが変形した状
態を表す図FIG. 6 is a diagram showing a state in which a sheet rubber of a conventional simultaneous release valve is deformed.
1 一斉開放弁 30 バタフライ弁 31 シートゴム 32 突起 36 弁体 40 保形材 41 穴 DESCRIPTION OF SYMBOLS 1 Simultaneous release valve 30 Butterfly valve 31 Seat rubber 32 Projection 36 Valve element 40 Shape retaining material 41 Hole
Claims (5)
室または二次側室または両室にバタフライ弁が一体に埋
め込まれているもので、該バタフライ弁のシートゴムの
外周に保形材を固着したことを特徴とする一斉開放弁。A butterfly valve is integrally embedded in a primary chamber, a secondary chamber, or both chambers of a simultaneous release valve used for a fire extinguishing system, and a shape retaining material is fixed to an outer periphery of a sheet rubber of the butterfly valve. Simultaneous release valve.
状に曲げた円筒形状であることを特徴とする一斉開放
弁。2. The simultaneous release valve according to claim 1, wherein the shape retaining material has a cylindrical shape obtained by bending a plate material into a roll shape.
ろう付、嵌め合わせの何れかにより接続されていること
を特徴とする一斉開放弁。3. The seam of the shape-retaining material according to claim 2, wherein the seam is welded,
A simultaneous release valve which is connected by either brazing or fitting.
は、接着剤にてシートゴムに固着されていることを特徴
とする一斉開放弁。4. The simultaneous release valve according to claim 1, wherein the shape-retaining material according to claim 1 is fixed to a sheet rubber with an adhesive.
に複数の突起を設け、保形材にもシートゴムの突起と嵌
合する穴を穿設しておき、該突起と穴によりシートゴム
と保形材を脱着可能に嵌着したことを特徴とする一斉開
放弁。5. The sheet rubber according to claim 1, wherein a plurality of projections are provided on the outer periphery of the sheet rubber, and holes are formed in the shape-retaining material so as to be fitted with the projections of the sheet rubber. A simultaneous release valve with rubber and shape-retaining material detachably fitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000150710A JP2001327622A (en) | 2000-05-23 | 2000-05-23 | Simultaneous opening valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000150710A JP2001327622A (en) | 2000-05-23 | 2000-05-23 | Simultaneous opening valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001327622A true JP2001327622A (en) | 2001-11-27 |
Family
ID=18656365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000150710A Pending JP2001327622A (en) | 2000-05-23 | 2000-05-23 | Simultaneous opening valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001327622A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3913264A1 (en) * | 2020-05-21 | 2021-11-24 | Maxitrol Company | Valve seat with seal for use with valve element in valve assembly |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0128389Y2 (en) * | 1985-03-13 | 1989-08-29 | ||
JPH0233494B2 (en) * | 1982-04-12 | 1990-07-27 | Tomoe Gijutsu Kenkyusho | CHOGATABENNOSHIITORINGUSEIKEIHOHO |
JPH0457913B2 (en) * | 1987-10-26 | 1992-09-16 | Tomoe Gijutsu Kenkyusho | |
JPH0718073U (en) * | 1993-09-02 | 1995-03-31 | 浩 笠原 | Butterfly valve |
JPH08121613A (en) * | 1994-10-18 | 1996-05-17 | Hiroshi Kasahara | Butterfly valve |
JPH08285094A (en) * | 1995-04-12 | 1996-11-01 | Tomoe Gijutsu Kenkyusho:Kk | Butterfly valve |
JPH11137713A (en) * | 1997-11-05 | 1999-05-25 | Kosei Hattori | Piping system of sprinkler fire extinguishing equipment |
JPH11190436A (en) * | 1997-12-26 | 1999-07-13 | Tomoe Tech Res Co | Seat ring for eccentric type butterfly valve and assembly method for the seat ring |
-
2000
- 2000-05-23 JP JP2000150710A patent/JP2001327622A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0233494B2 (en) * | 1982-04-12 | 1990-07-27 | Tomoe Gijutsu Kenkyusho | CHOGATABENNOSHIITORINGUSEIKEIHOHO |
JPH0128389Y2 (en) * | 1985-03-13 | 1989-08-29 | ||
JPH0457913B2 (en) * | 1987-10-26 | 1992-09-16 | Tomoe Gijutsu Kenkyusho | |
JPH0718073U (en) * | 1993-09-02 | 1995-03-31 | 浩 笠原 | Butterfly valve |
JPH08121613A (en) * | 1994-10-18 | 1996-05-17 | Hiroshi Kasahara | Butterfly valve |
JPH08285094A (en) * | 1995-04-12 | 1996-11-01 | Tomoe Gijutsu Kenkyusho:Kk | Butterfly valve |
JPH11137713A (en) * | 1997-11-05 | 1999-05-25 | Kosei Hattori | Piping system of sprinkler fire extinguishing equipment |
JPH11190436A (en) * | 1997-12-26 | 1999-07-13 | Tomoe Tech Res Co | Seat ring for eccentric type butterfly valve and assembly method for the seat ring |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3913264A1 (en) * | 2020-05-21 | 2021-11-24 | Maxitrol Company | Valve seat with seal for use with valve element in valve assembly |
US11536375B2 (en) | 2020-05-21 | 2022-12-27 | Maxitrol Company | Valve seat with seal for use with valve element in valve assembly |
EP4325096A3 (en) * | 2020-05-21 | 2024-05-15 | Maxitrol Company | Valve seat with seal for use with valve element in valve assembly |
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