詳細(xì)介紹 閘閥是指關(guān)閉件(閘板)沿通路中心線的垂直方向移動(dòng)的閥門。閘閥在管路中主要作切斷用。閘閥是使用很廣的一種閥門,一般口徑DN≥50mm的切斷裝置都選用它,有時(shí)口徑很小的切斷裝置也選用閘閥,閘閥有以下優(yōu)點(diǎn): ①流體阻力小。 ②開(kāi)閉所需外力較小。 ③介質(zhì)的流向不受限制。 ④全開(kāi)時(shí),密封面受工作介質(zhì)的沖蝕比截止閥小。 ⑤體形比較簡(jiǎn)單,鑄造工藝性較好。公稱壓力:1.6-6.4MPa適用溫度范圍:≤200℃~≤350℃適用介質(zhì):醋酸類、水、油、氣類及某些腐蝕性液體。主要零件材質(zhì) 零件名稱ZG1Cr18Ni9Ti304 CF8ZG00Cr18Ni10304L CF3ZG1Cr18Ni12Mo2Ti316 CF8MZG00Cr17Ni14Mo2316L CF3M閥體/閥蓋0Cr18Ni900Cr18Ni100Cr18Ni9Mo200Cr18Ni10Mo2閘板0Cr18Ni900Cr18Ni100Cr18Ni9Mo200Cr18Ni10Mo2閥桿0Cr18Ni900Cr18Ni100Cr18Ni9Mo200Cr18Ni10Mo2閥桿螺母鋁青銅填料PTFE編織PTFE編織PTFE編織PTFE編織墊片304+PTFE304L+PTFE316+PTFE316L+PTFE壓蓋0Cr18Ni900Cr18Ni100Cr18Ni9Mo200Cr18Ni10Mo2螺栓不銹鋼螺母不銹鋼手輪球墨鑄鐵、鑄鋼 主要連接尺寸 型號(hào)公稱通徑尺寸(mm)LDD1D2b-fz-ΦdHD0Z41W-1.6MPa1513095654514-24-1417012020150105755514-24-1420012025160115856514-24-14215140321801351007816-24-18260160402001451108516-34-182902005025016012510016-34-183452206526518014512018-34-183602408028019516013520-38-1838528010030021518015520-38-1843030012532524521018522-38-1852032015035028024021024-38-2361035020040033529526526-312-2376540025045040535532030-312-2589545030050046041037530-412-25114550035055052047043534-416-25120055040060058052548536-416-30140060045065064058554540-420-30150065050070070565060844-420-34163070060080084077071848-520-411830800 主要連接尺寸型號(hào)公稱通徑尺寸(mm)LDD1D2b-fz-ΦdHD0Z41W-2.5MPa1513095654516-24-1417012020150105755516-24-1420012025160115856516-24-14215140321801351007818-24-18260160402001451108518-34-182902005025016012510020-34-183452206526518014512022-38-183602408028019516013522-38-1838528010030023019016024-38-2343030012532527022018828-38-2552032015035030025021830-38-2561035020040036031027834-312-2576540025045042537033236-312-3090045030050048543039040-416-30113050035055055049044844-416-34125055040060061055050548-416-34143060045065066060055550-420-34152065050070073066061052-420-41165070060080084077071856-520-411850800 主要連接尺寸 型號(hào)公稱通徑尺寸(mm)LDD1D2D6b-fz-ΦdHZ41W-4.0MPa151309565454016-24-141702015010575555116-24-142002516011585655816-24-1421532180135100786618-24-1826040200145110857618-34-18290502501601251008820-34-183456528018014512011022-38-183608031019516013512122-38-1838510035023019016015024-38-2343012540027022018817628-38-2553015045030025021820430-38-2562020055037532028226038-312-3078025065044538534531342-312-34900Z41W-6.4MPa1517010575554118-24-141752019012590685120-24-1820025210135100785822-24-1821532230150110826624-24-2327040240165125957624-34-23300502501751351058826-34-233706528020016013011028-38-233858031021017014012130-38-2340010035025020016815032-38-2546012540029524020217636-38-3057015045034028024020438-38-3466020055040534530026044-312-3482025065047040035231348-312-411000