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上海依博羅截止閥BJ45W直流夾套保溫截止閥的保溫夾套焊裝于閥門的兩法蘭之間，閥門的側(cè)面、底部設(shè)置有保溫夾套的兩個連接口。直流保溫截止閥特別適用于化工、化肥行業(yè)的管路上，夾套內(nèi)涵入蒸汽能防止介質(zhì)結(jié)晶。保溫截止閥被廣泛應(yīng)用于石油、化工、冶金、制藥等各類系統(tǒng)中。 型號公稱壓力PN(MPa)試驗壓力適用溫度適用介質(zhì)保溫套壓力(MPa)殼體密封BJ45W-25P2.53.752.75≤200硝酸類≤1.0BJ45W-40P4.06.04.4BJ45W-64P6.49.06.6BJ45W-25R2.53.752.75硝酸類BJ45W-40R4.03.04.4BJ45W-64R6.49.06.6 I型主要外形尺寸和連接尺寸(II型法蘭大一級) 公稱壓力PN公稱通徑DN尺寸LDD1D2D3B1foBD63-GZ-ΦdHH1Do2.54.0151701057555358416513/84-Φ14250262120201901158565428416583/84-Φ142923081402521013510078508418663/84-Φ183403751603223014511085608418761/24-Φ1833837516040260160125100728420881/24-Φ18360386160503001801451209484221101/28-Φ184104502406534019516013510584221211/28-Φ1844048524080380230190160128114.5241501/28-Φ23540600280100430270220188154114.5281761/28-Φ25560625320125490300250218182114.5302041/28-Φ25625737360150550330280248212114.5322041/212-Φ25720790360 主要零件材料 零件名稱閥體、閥蓋閥瓣墊片BJ45W-25P、BJ45W-40P、BJ45W-64P鉻鎳鈦鋼鉻鎳鈦鋼+硬質(zhì)合金聚四氟乙烯BJ45W-25P、BJ45W-40P、BJ45W-64P鉻鎳鉬鈦鋼鉻鎳鉬鈦鋼+硬質(zhì)合金聚四氟乙烯