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首页Home＞美国热塑性塑料阀门及附件 Thermoplastic Valves & Accessories＞正文Text
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Page 129		 球阀故障排除指南（2）
BALL VALVE TROUBLESHOOTING GUIDE (2)
美国斯毕尔公司
 
内部泄漏 - 通过阀门时的在线泄漏
Internal Leaks - In-line Leakage Past Valve
可能原因
Possible Cause		 纠正措施
Corrective Action
球体阻塞
Ball obstruction

　　检查阀门是否处于“完全关闭”位置。如果不是，拆卸阀门并检查固体颗粒是否堵塞球阀通道。清洗并重新安装阀门。
　　Check that the valve is in its "full-closed" position. If not, remove valve and check for solids blocking the ball port. Clean and reinstall valve.
阀杆断裂
Broken Stem		 　　拆卸端口连接件并检查球体在阀门操作时是否能够旋转。如果必要进行更换。
　　Remove end connector and check for ball rotation while operating valve. Replace as necessary.
密封托架松了
Seal Carrier Loose

　　真活接阀门 - 拆卸阀门；小心紧固密封托架（位于阀体进口端口）。
　　True Union Valves - remove valve; CAREFULLY tighten seal carrier (located on inlet end of body).
　　单进入阀门 - 小心紧固单活接头螺母。
　　Single Entry Valves - CAREFULLY tighten single Union Nut.
　　重要提示：通常只需进行轻微的调节（对任一个阀门）。适当地调节阀门应该使其明显遇到阻力，但操作不会被阻碍 - 避免紧固过头或过分！
　　IMPORTANT: Generally only a slight adjustment is required (either valve). A properly adjusted valve should have significant resistance to operation without binding - AVOID OVER-TIGHTENING!
Teflon®阀座损坏或积满碎片
Teflon® Seat Damage or Debris Laden		 　　拆卸阀门阀座。检查碎片是否淤积过多，是否存在物理损坏（刻痕，切割伤，划伤，等等）。如果必要进行清洗和更换。
　　Remove and disassemble valve seat. Check for excessive debris and physical damage (nicks, cuts, scoring, etc.). Clean and replace as necessary.
阀座O形环脱落，损坏或
淤积碎片
Seat O-ring Displaced, Damaged or Debris Laden		 　　拆卸阀门阀座O形环；检查是否存在物理或化学损坏。检查O形环化学兼容性；进行相应的清洗并更换。检查系统流量是否过大。
　　Remove and disassemble valve seat O-rings; check for physical or chemical damage. Check O-ring chemical compatibility; clean and replace accordingly. Check for excessive system flow rate.
球体损坏
Ball Damaged		 　　拆卸阀门球体。检查在阀座密封表面（特别是球体通道）是否存在物理损坏（过分严重的刻痕、划伤，等等）。清洗表面；如果必要更换球体。检查是否存在化学损坏以及阀门材质（PVC, CPVC）的兼容性。
　　Remove and disassemble valve ball. Check for physical damage (excessive nicks, scoring, etc.) at seat sealing surface (prependicular to ball port). Clean surface; replace ball if necessary. Check chemical damage and valve material (PVC, CPVC) compatibility.
安装溢出造成液状粘固剂（胶）污染
Solvent-Cement (glue)
Contamination from installation Spillage		 　　拆卸阀门并检查胶是否淤积在球体或阀座面上，如果可能，进行清洗；如果损坏过分严重，则需要更换部件。
　　Remove valve and check for glue deposits on ball or seat areas, Clean, if possible; excessive damage may require component replacement.
热损坏（部件扭曲变形）
Thermal Damage (component distortion)		 　　检查系统工作温度，外部热源（包括直接阳光暴晒），或者系统结构或阀门更换产生的热源。
　　Check system operating temperatures, external heat sources (including direct sun), and heat generated from system design or valve placement.
 
活动部件卡住 - 无法，或很困难开启或关闭；有时伴随着阀杆断裂（剪切断裂）
Frozen Movements - unable, or very difficult, to open/close; sometimes accompanied by stem break (shear)
可能原因
Possible Cause		 纠正措施
Corrective Action
内部阻塞；沉淀物或颗粒淤积；液状粘固剂附着在球体上
Internal Obstructions; Sediment or Particle Buildup; Solvent Cement on Ball

　　拆卸阀门并检查是否存在固体颗粒、碎片或液状粘固剂淤积阻塞球体或阀门内部。检查球体与阀座接触面周围是否存在沉淀物颗粒阻塞现象。拆卸阀杆并检查是否有相同的情况。清洗并重新安装。
　　Remove valve and check for solids, debris or solvent cement deposits blocking the ball or valve interior. Check for sediment particles lodged around ball-seat contact areas. Remove stem and check for the same. Clean and reinstall.
过紧的密封托架
Over-tight Seal Carrier		 　　真活接阀门 - 拆卸阀门，将密封托架略微放松（位于阀体进口端口处）。
　　True-Union Valves - remove valve; slightly loosen seal carrier (located on inlet end of body).
　　单进入阀门 - 将单活接头螺母略微放松。
　　Single Entry Valves - slightly loosen single Union Nut.
　　重要提示：通常只需进行轻微的调节（对任一个阀门）。适当地调节阀门应该使其明显遇到阻力，但操作不会被阻碍。
　　IMPORTANT: Generally only a slight adjustment is required (either valve). A properly adjusted valve should have significant resistance to operation without binding.
化学破坏（通常表现为球体密封表面或其他内部部件扭曲变形，脱皮，蚀刻或漂白）
Chemical Attack (generally appears as distortion, peeling, etching or bleaching of ball sealing surfaces or other internal components)		 　　检查阀门材质（PVC, CPVC）与系统流体介质的化学兼容性。在做出决定之前确保考虑到工作温度。
　　Check valve material (PVC, CPVC) chemical compatibility with system fluids. Be sure to consider operating temperatures with this determination.
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