缩醛树脂刚性阀片-中英对照
参见图2-4 突出了阀片和出气口的第一种特征的详细描述，如上所述，阀件34决定着圆柱形的出气口32。阀片40为细长、挺直的金属片或桨状物，采用聚甲撑氧制成，商标名为Hoechst Celanese生产的缩醛树脂，或使用尼龙材料。也可以使用其他合适的防油材料。包括其他的非脆性材料的树脂。如图11所示，阀片40为圆形的出气口，而杠杆臂部分通常由二个带有方形剪口45的突出物43，用来连接通过爪状物固定的浮标46上的柱状物47。尽管在桨状物40的出气口关闭部分41为圆形，在保证封闭和出气口开放处32，34的互动的前提下，允许采用其它的形状。
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.
图1-11中所示的阀片40是刚性的，如果有必要，可以采用有弹性的、具有可塑的材料。有弹性的阀片40具有产生更紧密的封和的优势，但是有时和刚性阀片相比反映较慢。
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.
浮标46位于带有方形导柱的上端口，距离阀件34有稍许的弧度。导柱47可以和浮标构成一体。导柱47位于爪状法兰49的上方。其下表面与水平面有一定的弧度比上端部分的弧度要小。这样法兰49稍许朝出气口32向或倾斜，在靠近出气口处，导柱与法兰的角度为锐角，反方向为钝角。出气口32处，浮标46处的法兰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.
桨状物40通过突出物43而后与其相匹配的剪口45，在爪状物固定处与方形导柱连接。一旦连接，桨状物40在导柱47上下滑动。法兰49和浮标47的上表面对其进行限定。如图2所示，桨状物40通常停在导柱47的下方，其自由端口41停在十字形绝缘珠子的下方，以防止在通过检验是采取的不恰当的组装，如果阀片40被省略的话，不使用阀片40不能对出气口进行封闭，气体和蒸汽会在绝缘珠的杠杆处，通过出气口，在检测时渗出。提醒检查阀门缺陷的人员保持警觉。2014.9.3