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1、VALVES, CONNECTIONS, & PRDs 阀门、接头和泄压装置,CYLINDER GAS ER TRAINING 钢瓶气体应急培训,CYLINDER VALVES 瓶阀,VALVES 阀门 CONNECTIONS 接头 RELIEF DEVICES 泄压装置,CYLINDER VALVES 瓶阀,TYPES 种类 MATERIALS OF CONSTRUCTION 制作材料 APPLICATIONS LOGIC 使用逻辑,CYLINDER VALVES 瓶阀,MANUAL VALVE TYPES 手动阀门 PRESSURE SEAL 压力密封 PACKED- WRENCH OPE
2、RATED 填塞 扳手操作 PACKED- HANDWHEEL OPERATED 填塞 手柄操作 SPRING-LIFT DIAPHRAGM 弹簧 - 提升隔膜 TIED DIAPHRAGM 与阀芯联结的隔膜 PNEUMATIC VALVES 气动阀 TIED DIAPHRAGM与阀芯联结的隔膜,CYLINDER VALVES 瓶阀,MATERIALS OF CONSTRUCTION 制作材料 BRASS 黄铜 Inerts, Oxidizers, Flammables 惰气、氧化性气体、可燃气体 CARBON STEEL 碳钢 Ammonia, Amines 氨气、胺类 ALUMINUM S
3、ILICON BRONZE 铝硅青铜 Corrosives, Oxidizers 腐蚀性气体、氧化性气体 STAINLESS STEEL 不锈钢 High purity 高纯度 New Ammonia, Amines 新型氨气、胺类 HASTALLOY 哈氏合金 High Purity Corrosive Chlorides高纯腐蚀性氯气,Pressure Seal Valve 压力密封阀,弹簧组件,手轮,阀帽,填料,阀杆上部,阀杆下部,泄压装置,阀座,阀体,Pressure Seal Valve 压力密封阀,User friendly, used with pressures up to 6
4、000 psig 使用方便，最高工作压力可达6000psig Used with industrial, low purity gases threads in wetted part of gas stream 用于低纯度的工业气体 气体会接触螺纹 Two piece stem, slot and blade configuration 阀杆有两部分，槽杆搭配 Spring in handle wheel, can wiggle 弹簧嵌在手轮内，可以扭动 Back seat to fully open 后阀座保证阀门完全打开 Hand wheel does not rise or lower
5、 when opening or closing 关闭或打开阀门，手轮不会上升或下降 “Leaks” around stem when opening or closing 开关阀门时，可能在阀杆处发生泄漏 Surprise 惊讶 (small acetylene cylinder valves do not have handwheel) 小乙炔瓶的瓶阀不带手轮,Wrench Operated Packed Valve 扳手操作填料阀,压紧螺母,填料压圈,填料,阀杆,泄压装置,阀座,阀体,Wrench Operated Packed Valve 扳手操作填料阀,Used in corrosi
6、ve, reactive gas services, F2, HCl, Cl2, NH3 用于腐蚀性、活性气体供应 No handwheel, top of stem is squared off to accommodate wrench 没有手轮，阀杆顶端制为方形，供扳手操作 Packed valve with a one piece stem 带单体阀杆 Seal is metal to metal - seat wears 金属对金属的密封形式 阀座会磨损 When new-closes at 35 ft-lbs worn valves may need 100 ft-lbs to c
7、lose 关紧新阀门需35英尺 磅的扭矩 关紧已磨损阀门需100英尺 磅的扭矩 may need two wrenches to close, especially on small cylinders 需要两个扳手关阀，特别是小钢瓶 Large teflon slug wears and can“cold flow” 大特氟纶芯 会磨损，导致“冷流” Corrosion products can “cement” threads, can build up on sealing surface 腐蚀产品 会“粘接”螺纹，阻塞封接面Very large flow capacity fully
8、open to turn 很大流量能力 转动1/4到1/2圈全开,F2 VALVE W/ PACKING SEAL 填料密封的F2阀门,Handwheel Operated Packed Valve 手轮操作填料阀,锁紧螺母,手轮,填料盖,阀杆上部,阀杆下部,泄压装置,阀座,阀体,压紧螺母,填料,Higher purity corrosive & reactive gases 高纯腐蚀反应性气体 Handwheel with no spring, stem rises when opened 手轮没有弹簧，开阀时首轮上升 Two or three piece stem, lower stem
9、attached to upper stem via slip joint 手轮分2或3段，下端和上端通过伸缩接头连接 stem seals without rotating, 不是通过旋转来密封阀杆 less force needed to ensure seal 不需大外力来保证密封 Relatively low flow- about 3 turns to fully open 流量相对较低 大约旋3圈全开 No threads or lubricants in wetted stream 与气体接触的阀杆没有螺纹或润滑剂 Never use wrenches to close 不要用扳
10、手关阀门,Handwheel Operated Packed Valve 手轮操作填料阀,Diaphragm Valve 隔膜阀,隔膜片,手轮,阀杆上部,阀杆下部,泄压装置,阀座,阀体,定位螺母,弹簧,Diaphragm Valve (second generation) 隔膜阀（第二代）,隔膜片,手轮,阀杆上部,阀杆下部,泄压装置,阀座,阀体,定位螺母,弹簧,Diaphragm Valves 隔膜阀,Used for high purity gases, rare gases, toxic gases-superior leak integrity 用于高纯气体、稀有气体、毒气 最大防止泄露
11、设计 Handwheel operated, two piece stem separated by a non-perforated diaphragms手轮操作，上下阀杆被无孔膜片分开 No spring in handwheel (no wiggle), stem rises and lowers手轮内没弹簧（不会摆动），阀杆上下移动 Spring around lower stem which pushes the lower stem away from seat when opened弹簧趋使下阀杆向上移动，于是阀门开启 1 1/2 turns to fully open, do
12、not backseat 转1.5圈全开 DOUBLE CLOSURE technique needed 需要“双关闭技术” Can open from vibration wire tied shut on toxics, pyrophorics 振动可能打开阀门 毒性、自燃性气体阀门须用线栓死。 Confirm valve is closed before you remove outlet seal 取下出口密封前，确定阀门是关紧的 Never use wrenches or cheaters can permanently dish diaphragms, push seat in o
13、pening决不能用扳手工具 可能永久破坏膜阀 Flow limiters (RFOs) often added for hazardous gases 对毒性气体通常加限流装置,Tied-Diaphragm Valve 膜片与阀芯联结的阀门,隔膜片,手轮,阀杆组件,阀座,阀体,定位螺母,Used for high purity gases, rare gases, toxic gases 用于高纯度气体、稀有气体、毒气 Two piece stem connected through the diaphragm 上下阀杆通过膜片联结 no spring, lower stem physica
14、lly pulled away from seat 没有弹簧、下阀杆被拉离阀座 turn to achieve full flow 转3/4圈全开 Leak check port on side of valve to check for diaphragm leaks 阀门侧有检漏口，用来检查膜片是否泄漏 Better for high-purity services, much lower internal volume and no spring 比较适合高纯度气体供应 Double Closure technique needed 需要“双关闭技术” Can open from vibration wire-tied shut on toxics, pyrophorics振动可能打开阀门 毒性、自燃性气体阀门须用线栓死。 Confirm valve is closed before you remove outlet seal取下出口密封前，确定阀门是关紧的 RFOs often added for hazardous gases 对毒性气体通常加限流装置,
