縮醛樹脂剛性閥片-中英對照

參見圖2-4 突出了閥片和出氣口的第一種特征的詳細描述，如上所述，閥件34決定著圓柱形的出氣口32。閥片40為細長、挺直的金屬片或槳狀物，采用聚甲撐氧制成，商標名為Hoechst Celanese生產(chǎn)的縮醛樹脂，或使用尼龍材料。也可以使用其他合適的防油材料。包括其他的非脆性材料的樹脂。如圖11所示，閥片40為圓形的出氣口，而杠桿臂部分通常由二個帶有方形剪口45的突出物43，用來連接通過爪狀物固定的浮標46上的柱狀物47。盡管在槳狀物40的出氣口關閉部分41為圓形，在保證封閉和出氣口開放處32，34的互動的前提下，允許采用其它的形狀。
While valve element 40 in the illustrated embodiments of FIGS. 1-11 is essentially rigid, it can also be made from a more flexible, pliable material if desired. A pliable valve element 40 has the advantage of forming a tighter more conforming seal with the valve seat, but it will be somewhat less responsive in opening than a rigid valve element.
圖1-11中所示的閥片40是剛性的，如果有必要，可以采用有彈性的、具有可塑的材料。有彈性的閥片40具有產(chǎn)生更緊密的封和的優(yōu)勢，但是有時和剛性閥片相比反映較慢。
Float 46 is provided on its upper end with a rectangular guide post 47 exhibiting a slight curve away from valve seat 34. Post 47 can be integrally molded with float 46. Guide post 47 is topped by a claw flange 49 whose lower surface is angled from the horizontal slightly less than the upper portion of post 47 immediately adjacent. The effect is that flange 49 is tilted back slightly toward vent outlet 32 such that the angle at the post/flange junction nearer the vent outlet is acute and at the junction opposite is obtuse. End 49a of flange 49 is lower with respect to float 46 than end 49b nearer vent outlet 32.
浮標46位于帶有方形導柱的上端口，距離閥件34有稍許的弧度。導柱47可以和浮標構(gòu)成一體。導柱47位于爪狀法蘭49的上方。其下表面與水平面有一定的弧度比上端部分的弧度要小。這樣法蘭49稍許朝出氣口32向或傾斜，在靠近出氣口處，導柱與法蘭的角度為銳角，反方向為鈍角。出氣口32處，浮標46處的法蘭49的端口49a比端口49b要低。

Paddle 40 is connected to rectangular guide post 47 in a snap fit via prongs 43 and matching rectangular cutout region 45. Once connected, paddle 40 slides freely up and down post 47, limited in its travel by flange 49 and the upper surface of float 46. Paddle 40 normally rests at the base of post 47 as shown in FIG. 2, with its free end 41 resting on a shallow cruciform bead 42 on float 46. Bead 42 centers paddle 40 against valve seat 34 when the float is raised to close the valve. The cruciform crosssection of bead 42 prevents an improperly assembled valve from passing inspection, since the non-solid bead cannot seal vent outlet 32 without a valve element 40. Air and vapor will bleed between the arms of the cross of the bead through the vent outlet during inspection if valve element 40 has been omitted, alerting the person inspecting the valve to the defect.
槳狀物40通過突出物43而后與其相匹配的剪口45，在爪狀物固定處與方形導柱連接。一旦連接，槳狀物40在導柱47上下滑動。法蘭49和浮標47的上表面對其進行限定。如圖2所示，槳狀物40通常停在導柱47的下方，其自由端口41停在十字形絕緣珠子的下方，以防止在通過檢驗是采取的不恰當?shù)慕M裝，如果閥片40被省略的話，不使用閥片40不能對出氣口進行封閉，氣體和蒸汽會在絕緣珠的杠桿處，通過出氣口，在檢測時滲出。提醒檢查閥門缺陷的人員保持警覺。2014.9.3