Q3(6、9)40F/Y、PQ3(6、9)40F/Y、PBQ3(6、9)40F/Y侧装式偏心半球阀
侧装式偏心半球阀产品概述:
PQ/PBQ采用偏心原理通过传动机构达到闸紧、调节、关闭的目的,密封副是金属面环带硬面接触密封,双偏心结构在开启时阀芯位于藏球室内,流通截面大,且阀门不被冲刷,关闭时阀芯不被冲刷,开启时阀芯球面沿阀座渐进,有效地切除结垢障碍,实现可靠密封,它对两相混流易结垢固体析出的混流输送特别有效。主要用于污水处理、纸浆、电厂、水力除渣、气态输送管道的控制、城市采暖供热等要求严紧的场合。
特点及优点
●流通面积大,流阻小。这是因为开启后阀芯位于藏球室,流体直通。
●操作扭矩小,转90度即可启闭完成,操作轻便。
●密封严紧,双偏心金属硬密封。半球用双金属,母材上堆焊不同的合金,阀座也作相应堆焊经特殊的处理,密封面组合成防腐、耐磨、高强度等各种类型,满足不同场合需求,结垢不影响启闭,这是偏心半球阀zui显著的优点。
●使用寿命长,密封副的阀芯留有补偿量,当阀座磨损(阀座硬度低于阀芯)后,关闭时再转动少许,仍能可靠密封,延长使用寿命,此外,用户将压紧螺母拧掉,调整或更换后阀座仍可使用,避免了现行众多阀门密封失效整台报废的弊端。
设计与制造标准:
●设计与制造:API608 、GB/T12237
●结构长度:ANSI/ASME B16.10、GB/T12221
●法兰尺寸:ANSI/ASME B16.5、 JB/T79
●对焊连接尺寸:ANSI/ASME B16.25、GB/T12224
●检验与试验:API598、JB/T9092
压力试验
公称压力 | 强度试验 | 水密封试验 | 气密封试验 | |||
MPa | Lbf/in2 | MPa | Lbf/in2 | MPa | Lbf/in2 | |
150 | 3.1 | 450 | 2.2 | 315 | 0.5-0.7 | 60-100 |
300 | 7.8 | 1125 | 5.6 | 815 | ||
600 | 15.3 | 2225 | 11.2 | 1630 |
公称压力 | 强度试验 | 水密封/上密封试验 | 气密封试验 |
1.5* PN (MPa) | 1.1* PN (MPa) | 0.5-0.7 (MPa) | 0.6 MPa |
1.6 | 2.4 | 1.8 | |
2.5 | 3.8 | 2.8 | |
4.0 | 6.0 | 4.4 |
的材料明细表
序号 | 零件名称 | 碳钢系列 | 合金钢系列 | 不锈钢系列 | |
ASTM | |||||
1 | 阀体/Body | A216/WCB | A217/WC9 | A351/CF8 | A351/CF3M |
2 | 阀座/ Seat Ring | F6a (或F6a+PTFE) | F304(或F304+PTFE) | F304(或F304+PTFE) | F316L(或F316L+PTFE) |
3 | 球体/Ball | CA15+HF | A182/F304+HF | A182/F304+HF | A182/F316L+HF |
4 | 阀杆/Stem | ASTM/ A182 F6a | ASTM/A182 Gr F22 | ASTM/A182 Gr F304 | ASTM/A182 Gr F316L |
5 | 密封垫片/Gasket | 304+夹柔性石墨(或PTFE) | 316+夹柔性石墨 (或PTFE) | 316L+夹柔性石墨(或PTFE) | |
6 | 填料/Packing | 柔性石墨 (或PTFE) | 柔性石墨 (或PTFE) | 柔性石墨 (或PTFE) | 柔性石墨 (或PTFE) |
7 | 填料压板/Gland | A216/WCB | A217/WC9 | A351/CF8 | A351/CF3M |
8 | 填料螺栓/Eyebolt | A193/B7 | A193/B16 | A193/B8 | A193/B8M |
9 | 支架/Yoke | A216/WCB | A217/WC9 | A351/CF8 | A351/CF3M |
10 | 螺柱/Stud | A193/B7 | A193/B16 | A193/B8 | A193/B8M |
11 | 六角螺母/ Nut | A194/2H | A194/7 | A194/8 | A194/8 |
适用介质 | 水、蒸汽、油品等 | 水、蒸汽、油品等 | 硝酸、醋酸等 | ||
适用温度 | —29℃~200℃ | —29℃~200℃ | —29℃~200℃ |
注:客户需求的其他材质也可采用.密封面材料配对客户指定内件代号决定
主要安装尺寸及重量:
GB 1.6 MPa | |||||||||||||||||||||||||
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | |||||||||||
L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 | |||||||||||
H | 220 | 240 | 265 | 280 | 320 | 335 | 420 | 455 | 480 | 650 | 620 | 650 | 685 | 880 | |||||||||||
D0 | 190 | 190 | 190 | 190 | 280 | 280 | 280 | 280 | 280 | 280 | 305 | 305 | 305 | 305 | |||||||||||
Wt (Kg) | 蜗轮 | 26 | 28 | 30 | 40 | 65 | 74 | 105 | 200 | 250 | 375 | 460 | 610 | 750 | 880 | ||||||||||
电动 | - | - | 100 | 135 | 192 | 200 | 230 | 370 | 425 | 450 | 558 | 690 | 915 | 1015 |
GB 2.5 MPa | |||||||||||||||||||||||||
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | |||||||||||
L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 | |||||||||||
H | 220 | 240 | 265 | 280 | 320 | 335 | 420 | 455 | 480 | 650 | 620 | 650 | 685 | 880 | |||||||||||
D0 | 190 | 190 | 190 | 190 | 280 | 280 | 280 | 280 | 280 | 280 | 305 | 305 | 305 | 305 | |||||||||||
Wt (Kg) | 蜗轮 | 30 | 32 | 40 | 48 | 70 | 85 | 115 | 215 | 290 | 402 | 500 | 650 | 830 | 935 | ||||||||||
电动 | - | - | 112 | 146 | 200 | 215 | 250 | 398 | 470 | 500 | 595 | 740 | 930 | 1130 |
GB 4.0 MPa | ||||||||||||||||
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | |||||
L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | |||||
H | 265 | 275 | 280 | 305 | 330 | 385 | 435 | 485 | 530 | 560 | 650 | |||||
D0 | 190 | 190 | 190 | 190 | 280 | 280 | 280 | 280 | 280 | 280 | 305 | |||||
Wt (Kg) | 蜗轮 | 40 | 42 | 50 | 55 | 75 | 90 | 130 | 305 | 415 | 480 | 560 | ||||
电动 | - | - | 120 | 152 | 208 | 225 | 268 |
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