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耐熱鋼楔式閘閥

閘閥是zui常用的截斷閥之一，主要用來接通或截斷管路中的介質(zhì)，不適用于調(diào)節(jié)介質(zhì)流量。閘閥適用的壓力、溫度及口徑范圍很大，尤其適用于中、大口徑的管道。
閘閥的主要優(yōu)點：
（1）流體阻力小。閘閥閘體內(nèi)部介質(zhì)通道是直通的，介質(zhì)流經(jīng)閘閥時不改變其流動方向，因而流動阻力較小。
（2）啟閉較省力。啟閉時閘板運動方向與介質(zhì)流動方向相垂直。與截止閥相比，閘閥的啟閉較為省力。
（3）介質(zhì)流動方向一般不受限制。介質(zhì)可從閘閥兩側(cè)任意方向流過，均能達(dá)到接通或截斷的目的。便于安裝，適用于介質(zhì)的流動方向可能改變的管路中。

主要零件材料及性能規(guī)范

主要零部件	閥體、閥蓋、閘板	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti	ZG2Cr5Mo
	閥桿	1Cr13	1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti	20Cr1Mo1V1
	閥桿螺母	ZguAL10Fe3/球墨鑄鐵
	填料	柔性石墨、石墨石棉盤根
主要參數(shù)	適用介質(zhì)	蒸汽、油品、水等	硝酸類	醋酸類	蒸汽、油品、水等
主要參數(shù)	適用適用溫度℃	≤425	≤200	≤200	≤425

型號	公稱		主要結(jié)構(gòu)尺寸(mm)					閥體材料	性能規(guī)范
型號	通徑 DN(mm)	壓力 PN(MPa)	D	D₀	L	H₁	H₂	閥體材料	適用溫度℃	適用介質(zhì)
Z4₁⁰Y-16I	50	1.6	160	200	250	185	240	ZGCr5Mo	≤550	蒸汽、油品、水
"	65	"	180	200	270	240	20	"	"	"
"	80	"	195	250	280	350	395	"	"	"
"	100	"	215	250	300	370	480	"	"	"
"	150	"	280	300	350	560	720	"	"	"
"	200	"	335	350	400	735	955	"	"	"
"	250	"	405	400	450	880	1150	"	"	"
"	300	"	460	450	500	1050	1375	"	"	"
"	350	"	520	500	550	1195	1565	"	"	"
"	400	"	580	550	600	1335	1760	"	"	"
"	500	"	705	600	700	1720	2270	"	"	"
"	600	"	840	650	800	1830	2480	"	"	"
"	700	"	910		900			"	"	"
Z4₁⁰Y-25I	50	2.5	160	200	250	185	240	ZGCr5Mo	≤550	蒸汽、油品、水
"	65	"	180	200	270	240	320	"	"	"
"	80	"	195	250	280	305	395	"	"	"
"	100	"	230	250	300	370	480	"	"	"
"	150	"	300	300	350	560	720	"	"	"
"	200	"	360	360	400	735	955	"	"	"
"	250	"	425	425	450	880	1160	"	"	"
"	300	"	485	485	500	1080	1405	"	"	"
"	350	"	550	550	550	1210	1580	"	"	"
"	400	"	610	610	600	1345	1780	"	"	"
"	500	"	730	730	700	1740	2290	"	"	"
"	600	"	840	650	800	1850	2500	"	"	"
"	700	"	955		900			"	"	"
Z4₁⁰Y-40I	50	4.0	160	250	250	220	295	ZGCr5Mo	≤550	蒸汽、油品、水
"	65	"	180	250	280	290	365	"	"	"
"	80	"	195	300	310	360	450	"	"	"
"	100	"	230	300	350	450	570	"	"	"
"	150	"	300	350	450	620	790	"	"	"
"	200	"	375	400	550	830	1050	"	"	"
"	250	"	445	450	650	950	1235	"	"	"
"	300	"	510	500	750	1120	1450	"	"	"
"	350	"	570	550	850	1560	1940	"	"	"
"	400	"	655	600	950	1770	2200	"	"	"
"	500	"	755	680	1050	1880		"	"	"
Z4₁⁰Y-64I	50	6.4	175	300	250	240	320	ZGCr5Mo	≤550	蒸汽、油品、水
"	65	"	200	300	280	310	390	"	"	"
"	80	"	210	350	310	380	470	"	"	"
"	100	"	250	350	350	470	590	"	"	"
"	150	"	340	400	450	640	810	"	"	"
"	200	"	405	450	550	850	1070	"	"	"
"	250	"	470	500	650	1000	1270	"	"	"
Z4₁⁰Y-64I	300	6.4	530	550	750	1210	1550	ZGCr5Mo	≤550	蒸汽、油品、水
Z4₁⁰Y-100I	50	10.0	195	300	250	260	340	ZGCr5Mo	≤550	蒸汽、油品、水
"	65	"	220	300	280	330	410	"	"	"
"	80	"	230	350	310	400	490	"	"	"
"	100	"	265	350	350	490	610	"	"	"
"	150	"	350	400	450	660	830	"	"	"
"	200	"	430	450	550	1100	1320	"	"	"
"	250	"	500	500	650	1300	1580	"	"	"
"	300	"	585	550	750	1480	1810	"	"	"