H44旋啟式止回閥選用于公稱壓力PN1.6～6.4MPa，工作溫度-29～550℃的石油、化工、火力電站等各種工況的管路上。適用介質(zhì)為：水、油品、蒸汽等。結(jié)構(gòu)與特點(diǎn)1、選材考究，符合國(guó)內(nèi)、外相關(guān)標(biāo)準(zhǔn)，材料的全面質(zhì)量高。2、密封副配對(duì)先進(jìn)合理，閥瓣、閥座密封面采用鐵基合金或司太立（Stellite）鈷基硬質(zhì)合金堆焊面成，耐磨、耐高溫、耐腐蝕、抗擦傷性能好，使用壽命長(zhǎng)。3、產(chǎn)品按國(guó)家標(biāo)準(zhǔn)GB/T12235設(shè)計(jì)制造。4、可采用各種配管法蘭標(biāo)準(zhǔn)及法蘭密封型式，滿足各種工程需要及用戶要求。5、閥體材料品種齊全，墊片可根據(jù)實(shí)際工況或用戶要求合理選配，能適用于各種壓力、溫度及介質(zhì)工況?？砂从脩粢笤O(shè)計(jì)制造不同結(jié)構(gòu)形式和連接形式的止回閥，為各種設(shè)備配套使用連接尺寸表 ；型號(hào)公稱壓力PN（MPa）公稱通徑DN（mm）尺寸(mm)重量（Kg）LDD1D2bZ-dD3HH44H-16CH44W-16PH44W-16R1.64020014511088204-1814510315.250230160125102204-1818516021.365290180145122228-1821517528.180310195160133228-1823518537.6100350230180158248-2327022056.7125400270210184288-2534024891150480300240212308-253752701292005503602952683412-254353502102506504253553203612-305154152903007504854103704016-303203508505504704304416-34420型號(hào)公稱壓力PN（MPa）公稱通徑DN（mm）尺寸(mm)重量（Kg）LDD1D2bZ-dD3HH44H-25CH44W-25PH44W-25R2.54020014511088204-1814510315.250230160125102204-1818516021.365290180145122228-1821517528.180310195160133228-1823518537.6100350230180158248-2327022056.7125400270210184288-2534024891150480300240212308-253752701292005503602952683412-254353502102506504253553203612-305154152903007504854103704016-303203508505504704304416-34420