一、主要性能参数公称通径DNmm50～2000公称压力PNMPa0.250.61.01.62.54.0试验压力PsMPa强度试验0.3750.91.52.43.756.0密封试验O.2750.661.11.762.754.4气密封试验O．5～0.8MPa适用介质水、油品、蒸汽、煤气、酸、碱等适用温度一40℃～570℃二、主要零部件材料名称材料阀体碳钢、不锈钢、铬钼钒钢阀板碳钢、不锈钢、铬钼钒钢阀杆2Cr13不锈钢、铬钼钒钢密封圈不锈钢、聚四氟乙烯、硬软叠层式金属片阀座不锈钢、堆司太立等硬质合金填料柔性石墨、聚四氟乙烯三、D343H（F）、D643H（F）、D943HF连接尺寸四、D343HF、D643HF、D943HF连接尺寸通径主要尺寸1.6MPa2.5MPa4.0MPamminchLHH1DD1Z-φdb×fDD1Z-φdb×fDD1Z-φdb×f502108752001651254-φ1820×31651254-φ1820×31651254-φ1820×36521／2112932101851454-φ1820×31851458-φ1822×31851458-φ1822×3803114982262001608-φ1820×32001608-φ184×32001608-φ1824×310041271302502201808-φ1822×32351908-φ2224×32351908-φ2224×312551401652952502108-φ1822×32702208-φ2626×32702208-φ2626×315061401753152852408-φ2224×33002508-φ2628×33002508-φ2628×3200815222038034029512-φ2224×336031012-φ2630×337532012-φ3034×32501016525040540535512-φ2626×342537012-φ3032×345038512-φ3338×33001217830048046041012-φ2628×348543016-φ3034×451545012-φ3342×43501419033054552047016-φ2630×455549016-φ3338×458051016-φ3646×44001621636055058052516-φ3032×462055016-φ3640×466058516-φ3950×44501822238062064058520-φ3034×4670600、20-φ3642×468561020-φ3950×45002022941068071565020-φ3336×473066020-φ3644×475567020-φ4252×46002426746075084077020-φ3638×584577020-φ3946×589079520-φ4860×57002829253082091084024-φ3638×596087524-φ4246×58003231861O910102595024-φ3938×5108599024-φ4850×5900363306409301125105028-φ3940×51185109028-φ4854×51000404107209801255117028-φ4242×51320121028-φ5658×512004847082012201485139032-φ4848×51530142032-φ5672×514005653093013101685159036-φ4860×51750164036-φ6578×516006460098014601930182040-φ56180072670109015602130202044-φ56200080760119016702345223048-φ62通径主要尺寸O．25MPa0.6MPa1．OMPamminchLHH1