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四通換向球閥為X形垂直通道的球閥，它的特點(diǎn)是球體的兩條通道為X形布置，四個通道口徑均布于球體赤道圓周截面上，當(dāng)球體沿順時針旋轉(zhuǎn)90時，能使相鄰的兩個通道實(shí)現(xiàn)兩兩互通。

主要性能規(guī)范 Main Performance Spcification

公稱壓力 PN(MPa) Nominal diameter		試驗(yàn)壓力 Test pressure
		殼體 Shell	高壓液密封 High-pressure liquid sealing	低壓氣密封 Low-pressure hermetic sealing
1.6		2.4	1.76	0.6
2.5		3.75	2.75
4.0		6.0	4.4
CLASS150		3.O	2.2
適用工況 Applicable Operating Mode	適用介質(zhì) Applicable medium		水、油品、氣等非腐蝕介質(zhì)和酸堿腐蝕介質(zhì) Non-corrosion medium such as water, oil products, and gas, etc,and nitric acid corrosion medium.
	適用溫度 Applicable temperature		-28-350℃
應(yīng)用規(guī)范 Applicable specification	連接法蘭 Connecting flange		JB79-59、GB9113、HG20592-97、ANSI B16.5
	檢驗(yàn)試驗(yàn) Test and inspection		GB9/T 9092-99、API 598
其余制造規(guī)范均按本廠標(biāo)準(zhǔn)