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■主要技術參數和性能指標:

公稱壓力：Nominal pressure: 1.0 Mpa, 1.6 Mpa, 2.5 Mpa(ANSI Class 125, 150lb)
規格：Nominal size: DN50~DN600 (2"-24")
適用溫度Suitable temperature: -40℃~180℃
適用介質Suitable medium: This butterfly valve can be applied in various concentrations of Acid, Alkali, Aqua regia and strong chloridizing etc (except the high-temperature melting alkali metals, element fluorine & chlorine trifluoride).
操作方式operation style: Handle, worm gear, electric, pneumatic, hydraulic.
用途Application: This butterfly valve is mainly used in petroleum, chemical, pharmaceutics, and metallurgy, coker etc corrosive pipeline circulation systems.
口徑size
使用溫度Max. working temperature
使用壓力 Max. working pressure
試驗壓力Test pressure
液體Liquid
氣體Gas
閥體（水壓）Shell(Hydrostatic)
密封（氣體）Seal(air)

■主要零件材料：

序號 Sr. No.	名稱 Part name	材質 Material
1	閥體 Body	Ductile iron
1a	閥體連接螺釘 connection screw	Alloy steel
2	閥體襯里 Body liner	FEP F46
3	蝶板襯 Disc liner	FEP F46
	蝶板 Disc	Cast steel
	上軸1 Upper shaft 1	Alloy steel
	上軸2 Upper shaft 2	Alloy steel
	下軸1 Lower shaft 1	Alloy steel
3a	下軸2 Lower shaft 2	Alloy steel
3b	下軸3 Lower shaft 3	Stainless steel
4	上襯套 Upper bushing	Stainless steel
5	下襯套 Lower bushing	Stainless steel
6	密封環 Sealing ring	PTFE
7	壓圈 Press ring	Stainless steel
8	后襯墊 Back bushing	EPDM/Viton
9	彈簧墊Spring washer	Alloy spring steel
10	內六角螺釘Socket head cap screw	Alloy steel

■主要外形尺寸：

口徑 size	使用溫度 Max. working temperature	使用壓力 Max. working pressure		試驗壓力 Test pressure		全開放CV值
口徑 size	使用溫度 Max. working temperature	液體 Liquid	氣體 Gas	閥體(水壓) Shell(Hydrostatic)	密封(氣體) Seal(air)	全開放CV值
50	180	7	2.5	10.5	3	120
65						120
80						290
100						450
125						800
150						1200
200						2300
250						3800
300						5700
350						6600
400						9000
450						11900
500						14400
600						21000