主要零件和材质 Main parts and materials 产品结构特点 Construction features 1、产品设计制造按E101和JB/T 3595标准的规定，结构合理，性能优良，造型美观。 2、阀门中腔采用压力自紧式密封结构，介质压力越高，密封性能越好。 3、支管两端为焊接结构，适应不同的接管要求。 4、阀瓣、阀座密封面采用司太立（stellite）钴基硬质合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好、使用寿命长。 5、高温耐压部件采用优质耐热合金钢制造，安全可靠，性能稳定，使用寿命长。 1. Product design and manufacturing shall be based on E101 and JB/T 3595 standard, with reasonable structure, excellent performance and beautiful appearance. 2. Pressure self-tightening seal structure is adopted in the valve middle cavity.The higher the medium pressure, the better the sealing performance. 3. The two ends of the branch are welded to meet different takeover requirements. 4. Disc, seat cover, and stellite (stellite) cobalt base alloy, which is used for hard wear, high temperature resistance, corrosion resistance, good abrasion resistance and long service life. 5. High temperature withstａnd pressure parts are made of high quality heat-resistant alloy steel, safe and reliable, stable performance and long service life. 产品特征 Spericfications 适用介质：水、气、油品、天然气和酸碱腐蚀性介质 技术规范 Technical specification 试验压力 Test prssure 止回阀结构长度和外接尺寸 Main connection dimensions
序号
NO零件名称
Accessor name材质 Material GB系列 1 阀体 Body WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 2 浮动座 Floating seat A105, F304, 25Cr2MoV 3 密封垫 Gaskes 石墨, 316L 4 密封环 Seal ring F304, 20CrMoV, 15Cr1MoV 5 四合环 Washer 20Cr13, 20Cr1MoVA 6 阀盖 Bonnet A105, Q235B 7 螺柱 Bonnet bolt 35#, 304, 316 8 螺母 nut 35#, 304, 316 9 吊环 Eye bolt 35# 10 阀瓣并帽 Bonnet cap 45# 11 摇杆 Arm WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 12 阀瓣 Wedge (WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M)+STL 13 阀座 Seat (A105, F304, F316, F316L)+STL 14 外六角螺柱 Bonnet bolt 35#, 304, 316 15 垫片 Gaskets 20Cr13, 304, 316 16 轴套 Bush bearing 自润滑复合轴套 304/316+PTFE 17 圆锥销 Pin 20Cr13, 304, 316 
适用温度：-196~540℃
驱动方式：手动、气动、电动等
公称压力：20.0~32.0MPa
公称通径：DN50~250mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~540℃
Driver: manual, pneumatic, electric, etc
Nominal pressure: 20.0~32.0MPa
Nominal size: DN50~250mm设计依据 Design reference GB系列 GB series 设计标准 Design standard GB/T12236 NB/T47044 DL531 结构长度 Face to face GB/T12221 连接法兰 End flange GB/T12224 试验和检验 Test & inspection GB/T 26480 压力等级
Pressure grade试验压力 Test pressure 公称压力 PN
Nominal pressure壳体试验
Sheil test正密封试验
Sealing test反密封试验
Sealing test气密封试验
Air seal test20.0 P54 10V 30.0 22.0 22.0 0.6 25.0 P54 14V 37.5 27.5 27.5 0.6 32.0 P54 17V 48.0 32.5 32.5 0.6 P55 10V 37.5 27.5 27.5 0.6 P55 14V 48.0 36.0 36.0 0.6 P55 17V 53.0 39.0 39.0 0.6 P57 10V 48.0 36.0 36.0 0.6 P57 14V 53.0 39.0 39.0 0.6 P57 17V 60.0 44.0 44.0 0.6 PN:10.0~16.0 PN: 25.0 公称通径
DNL
(mm)H
(mm)L
(mm)H
(mm)50 300 250 368 310 65 340 280 419 345 80 380 320 470 385 100 430 360 546 406 125 500 395 673 535 150 550 430 705 560 200 650 470 832 620 250 775 515 991 675
所有评论仅代表网友意见，与本站立场无关。