半球阀有什么缺点吗 阀门厂家排名前100

半球阀有什么缺点吗：

半球阀的缺点：

1、半球阀的流量控制不够精确，当调节范围大时可能会产生流量不均匀的现象。

2、半球阀的排污能力较差，因为它的阀杆的设计不容易清除污物，容易使阀门内部的污物附着在内部，影响其正常使用。

3、半球阀的维护和维修较为复杂，因为半球阀的结构相对复杂，它的维护和维修需要有一定的技术知识和技能来完成。

4、半球阀的价格较贵，因为它的结构相对复杂，而且需要一定的技术知识和技能来完成它的制造，所以它的价格较贵。

阀门厂家排名前100：

1. Velan Inc. 2. Crane Co. 3. Watts Water Technologies, Inc. 4. Flowserve Corporation 5. Kitz Corporation 6. Siemens AG 7. Pentair Valves & Controls 8. Tyco Valves & Controls 9. Emerson Electric Co. 10. Metso Corporation 11. Mueller Industries, Inc. 12. Weir Group PLC 13. Circor International, Inc. 14. Pentair plc 15. Flomatic Corporation 16. Pentair Pumps & Controls 17. Hayward Flow Control 18. Haws Corporation 19. Nivus GmbH 20. KSB Group 21. Xylem Inc. 22. Rheinhütte Pumpen GmbH 23. GF Piping Systems 24. Grundfos Holding A/S 25. ITT Corporation 26. LK Armatur AB 27. Rotork plc 28. Metraflex Company 29. KARL DOSE GmbH & Co. KG 30. A.R.I. Flow Control Accessories Ltd. 31. AVK Holding A/S 32. Oventrop GmbH & Co. KG 33. LESER GmbH & Co. KG 34. Bray International, Inc. 35. AVK Southern Africa Pty Ltd. 36. NIBCO Inc. 37. Belimo Automation AG 38. Zwick Armaturen GmbH & Co. KG 39. Neway Valves 40. Georg Fischer AG 41. Victaulic Company 42. KTM Pumps & Valves Ltd. 43. Fluidline Controls Ltd. 44. OEG Offshore Ltd. 45. KITZ Corporation of America 46. A.Y. McDonald Manufacturing Co. 47. SCOX-ARCA 48. Crane Supply 49. Lunkenheimer Valves 50. Crane Fluid Systems Ltd. 51. Val-Matic Valve & Manufacturing Corp. 52. Bürkert Werke GmbH 53. Fluid Controls Ltd. 54. Xomox Corporation 55. Wärtsilä Corporation 56. Crane Energy Flow Solutions 57. Crane Valve & Meter Group 58. Rheinhütte Pumpen GmbH & Co. KG 59. KITO Corporation 60. A-T Controls, Inc. 61. Schlumberger Ltd. 62. LESER GmbH & Co. KG 63. TATI Valvole S.p.A. 64. KARL DOSE GmbH & Co. KG 65. Cameron International Corporation 66. SchuF GmbH 67. Bonomi S.p.A. 68. L&T Valves Ltd. 69. Kimray, Inc. 70. Apollo Valves 71. Alfa Laval AB 72. KITZ Corporation of America 73. Wenzhou Royal Valve Co., Ltd. 74. Weir Valves & Controls USA, Inc. 75. AVK International A/S 76. Jomar Valve, Inc. 77. WEG S.A. 78. Lutz-Jesco GmbH & Co. KG 79. Richter Chemie-Technik GmbH & Co. KG 80. KTM Pumps & Valves Ltd. 81. AVK Southern Africa Pty Ltd. 82. SFC KOENIG GmbH 83. SPX Corporation 84. Cameron International Corporation 85. Globe Valves Ltd. 86. Fluidline Controls Ltd. 87. AVK Valves, Inc. 88. Flowserve Corporation 89. Flowserve Valves & Automation, Inc. 90. KITO Corporation 91. Val-Matic Valve & Manufacturing Corp. 92. Flow-Tek, Inc. 93. KITZ Corporation of America 94. Jamesbury Corporation 95. Anderson Greenwood & Co. 96. Flow Control Solutions Ltd. 97. ValvTechnologies, Inc. 98. Circor International, Inc. 99. Crane Fluid Systems Ltd. 100. WEG S.A.