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派克PARKER氣動閥PVL-B10761802B特價銷售

作者:陳飛   發(fā)布于:2016-9-8 14:23:17    文字:【】【】【
派克PARKER氣動閥PVL-B10761802B特價銷售

派克PARKER氣動閥PVL-B10761802B特價銷售
 
美國派克PARKER氣動閥,PARKER氣控閥 

1、氣動調(diào)節(jié)閥的工作原理:氣動調(diào)節(jié)閥由執(zhí)行機構(gòu)和調(diào)節(jié)機構(gòu)組成。執(zhí)行機構(gòu)是調(diào)節(jié)閥的推力部件,它按控制信號壓力的大小產(chǎn)生相應的推力,推動調(diào)節(jié)機構(gòu)動作。閥體是氣動調(diào)節(jié)閥的調(diào)節(jié)部件,它直接與調(diào)節(jié)介質(zhì)接觸,調(diào)節(jié)該流體的流量。
2.公稱壓力:(Nominal pressure),表示符號PN,在一定溫度下應用時允許的最大工作壓力。對碳鋼閥體的控制閥,指200℃以下應用時允許的最大工作壓力;對鑄鐵閥體,指120℃以下應用時允許的最大工作壓力;對不銹鋼閥體的控制閥,指250℃以下應用時允許的最大工作壓力。當工作溫度升高時,閥體的耐壓會降低。
例如,公稱壓力為6.4MPa(PN64)的碳鋼控制閥,用于300℃時的耐壓為5.2MPa,用400℃時的耐壓為4.1MPa,用于450℃時的耐壓為2.9MPa。因此,控制閥公稱壓力的確定不僅要根據(jù)最高工作壓力,還需根據(jù)最高工作溫度和材質(zhì)特性,而不僅僅只需滿足公稱壓力大于工作壓力

上海心雨機電設(shè)備有限公司

聯(lián)系人:陳飛(銷售)

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P3KMA1V0N
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P3KTA14SGN000
P3KTA14SGN2CN
P3KVA13LN
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P01913
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3505500
3505700
P3HKA00MK
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P3A-EA11BEBGP
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P3D-LA00KFN
P3D-AA12LGB
P3D-AN12LGB
P3D-CA12KGB
P3D-CA12LGB
P3D-MA1V
P3D-VA00A0N
P3D-VA00P0N
P3D-KA00CBN
P3D-KA12CPN
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P3D-SA00G0N
P3D-DA00PQN
P3D-DA00SGN000
P3D-DA00SGN2CN
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P3D-DA00NLN
P3A-KA00MRN
P3D-KA00MWN
P3A-KA00MKN
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P3A-KA00ATN
P3D-KAB1AHN
P3D-KAB1ALN
P3D-KAB1ANN
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P3E-FA00KEN
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P3E-RA00BLN
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P3E-RA00BHN
P3E-EA00KEBNN
P3E-EA00MEBNN
P3E-AA14MGB
P3E-AN14MGB
P3E-CA14KGB
P3E-CA14MGB
P3E-MA1V
P3E-KA12CPN
P3E-KA13CPN
P3E-KA14CPN
P3E-KA16CPN
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P3E-VA00A0N
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P3E-TA00SGN000
P3E-TA00SGN2CN
P3E-TA00SCN2CN
P3D-KAB1AHN
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P3D-KAB1AYN
P3E-KA00MMN
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P3E-KA00MWN
P3NFA16GSM
P3NFA16GSA
P3NFA18GSM
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P3NFA16DSA
P3NFA18DSA
P3NRA16BNL
P3NRA16BNN
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P3NRA18BNL
P3NRA18BNN
P3NRA18BNH
P3NRA18BPP
P3NLA16LSN
P3NLA18LSM
P3NLA18LSN
P3NEA16GSMBNN
P3NEA16GSABNN
P3NEA18GSMBNN
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P3NKB16CP
P3NKB18CP
P3NKB1BCP
P3NKB18CL
P3NKB16CL
P3NKB1BCL
P3NKA00MW
P3NKA0BMW
P6G-ERB2040
P6G-ERB2110
P6G-ERB2140
P6G-ERB2200
LV80BA
1FF33BL
F602G12WJ
F602G16WJ
F602G20WJ
R119G12C
R119G12J
R119G16J
R119G20J
L606G12W
18B57
P6G-ERB2040
P6G-ERB2110
 

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