安沃馳AVENTICS石油機(jī)械閥R431002654

安沃馳AVENTICS石油機(jī)械閥R431002654

石油機(jī)械呼吸閥

保護(hù)油罐安全的重要附件

機(jī)械呼吸閥主要滿足儲罐大小呼吸的通氣要求與阻火器配套安裝在儲存甲、乙、丙類液體的儲罐頂上。

機(jī)械呼吸閥是保護(hù)油罐安全的重要附件，裝設(shè)在油罐的頂板上，由壓力閥和真空閥兩來洎頭條部分組成。它的作用在一般情況下，保持油罐的密閉性，在一定程度上減少油品的蒸發(fā)損耗。而在必要時(shí)，能自動(dòng)通氣調(diào)節(jié)平衡油罐內(nèi)外壓力，對油罐起到安全作用

呼吸閥

機(jī)械呼吸閥是靠閥盤自身的重量，控制油罐的呼氣壓力或吸氣真空度，保持罐內(nèi)一定壓力。其壓力閥的額定控制壓力一般為2kPa，真空閥的額定控制壓力一般為-0.5kPa。當(dāng)罐內(nèi)油氣壓力大于油罐允許壓力時(shí)，油蒸汽經(jīng)壓力閥外逸，此時(shí)真空閥處于關(guān)閉狀態(tài)；當(dāng)罐內(nèi)油氣壓力小于油罐允許真空度時(shí)，新鮮空氣通過真空閥進(jìn)入罐內(nèi)，此時(shí)壓力閥處于關(guān)閉狀態(tài)，允許壓力（或真空壓力）靠調(diào)節(jié)盤的重量來控制。

使用中必須注意：呼吸閥座盤若太輕或有損壞，容易使罐內(nèi)輕質(zhì)油品的蒸氣大量向罐外散逸，或閥盤升降失靈，就有可能使油罐產(chǎn)生****或壓癟變形的危險(xiǎn)。機(jī)械呼吸閥有時(shí)會銹蝕發(fā)生堵塞，在冬季會因油蒸汽內(nèi)含水而使閥盤與閥座凍結(jié)。

某廠氧化車間罐區(qū)對二甲苯罐式常壓罐，氮?dú)饷芊�，壓力�?.02MPa，超壓氣體由罐頂呼吸閥排出。在收料時(shí)，由于呼吸閥凍結(jié)，氣體排不出去，罐體受壓，導(dǎo)致罐底鼓起，罐體角焊縫破裂，使對二甲苯跑損8來洎6。5頭條7噸。

R431002654 Aventics安沃馳石油機(jī)械閥型號

R431002567 HEXAGON NUT 10-24UNC-2B

R431002578 TIE-ROD 1/4-20NC-2AX5

R431002579 TIE-ROD 1/4-20NC-2AX6.56

R431002580 TIE-ROD 1/4-20NC-2A

R431002581 TIE-ROD 10-24NC-2AX3.75

R431002582 TIE-ROD 10-24X4.75X5/8X1/4

R431002583 TIE-ROD 10-24NC-2AX6-5/8

R431002597 DRIVER SCREW #6X0.19

R431002599 DRIVER SCREW #7X0.19

R431002601 DRIVER SCREW #00X0.25

R431002602 HEXAGON NUT 1/4-20NC-2B

R431002604 PISTON GUIDE A TYPE INDUSTRIAL CY&

R431002606 CUP SEAL 2X0.31

R431002607 JAM NUT 1 3/4-12UN-2B

R431002611 NEEDLE BEARING CO****OLAIR-H

R431002613 CO****OLAIR-H-1-(3-65)

R431002614 CO****OLAIR-H-1-(3-100)

R431002615 CO****OLAIR-H-1-(3-125)

R431002616 CO****OLAIR-H-1-(3-150)

R431002617 CO****OLAIR-H-1-(3-30)

R431002618 LATCH CO****OLAIR-2A-2B

R431002622 HEADLESS SCREW 5/16-18X0.375

R431002625 COMPRESSION SPRING 0.054X0.603X1.534-(M&

R431002626 CO****OLAIR-H-3-(0-65)-LB-SPR

R431002627 CO****OLAIR-H-3-(0-100)-LB-SPR

R431002628 CO****OLAIR-H-3-(0-125)-LB-SPR

R431002629 CO****OLAIR-H-3-(0-150)-LB-SPR

R431002631 CO****OLAIR-H-3-(3-30)-LB-SPR

R431002635 HANDLE PILOTAIR-D-N012

R431002638 CO****OLAIR-H-2-X-(0-65)

R431002639 CO****OLAIR-H-2-X-(0-100)

R431002640 CO****OLAIR-H-2-X-(0-125)

R431002641 CO****OLAIR-H-2-X-(0-150)

R431002642 CO****OLAIR-H-2-X-(0-30)

R431002643 CO****OLAIR-H-2-FX-(0-65)

R431002644 CO****OLAIR-H-2-FX-(0-100)

R431002645 CO****OLAIR-H-2-FX-(0-125)

R431002646 CO****OLAIR-H-2-FX-(0-150)

R431002647 CO****OLAIR-H-2-FX-(3-30)

R431002648 CO****OLAIR-H-2-FX-(0-80)

R431002649 CO****OLAIR-H-2-FX-(10-65)

R431002650 CO****OLAIR-H-2-FX-(10-90)

R431002651 CO****OLAIR-H-2-FX-(0-175)

R431002652 CO****OLAIR-H-2-LX-(0-65)

R431002653 CO****OLAIR-H-2-LX-(0-100)

R431002654 CO****OLAIR-H-2-LX-(0-125)

R431002655 CO****OLAIR-H-2-LX-(0-150)

R431002660 LATCH CO****OLAIR-HD-2-FM

R431002661 POSITIONING PIN CO****OLAIR-HD-2-FM

R431002662 SHAFT BEARING CO****OLAIR-HD-2-FM

R431002664 ROD END 3/8 TYPE A ACTUATOR

R431002667 ASSEMBLY PILOTAIR-D-N012-SR-S&

R431002669 VALVE STEM PILOTAIR-D-N012

R431002670 NUT 1.31X0.19X(1/4-20NC-&

R431002671 NUT 2.06X0.19X(1/4-20NC-&

R431002673 NUT 2.16X0.19X(10-24NC-2&

R431002675 COMPRESSION SPRING 0.08X0.8125X1.962-(M&

R431002676 ADAPTER PILOTAIR-D-N012

R431002677 SUPPORT PILOTAIR-D-N012

R431002678 CONNECTING LINK PILOTAIR-D

R431002679 VALVE STEM PILOTAIR-D-N012

R431002681 VALVE STEM PILOTAIR-D-N012

R431002684 CAM CO****OLAIR-H-2-EX

R431002686 COVER PILOTAIR-D-N012

R431002687 COVER PILOTAIR-D-N012

R431002692 FOOTBOARD PILOTAIR-D-N012

R431002693 PISTON PILOTAIR-D-N012

R431002702 VALVE CYLINDER PILOTAIR-D-N012

R431002705 BRAKE SHOE CO****OLAIR-H-W/HOLDER

R431002707 BEARING ROTAIR-P

R431002713 BEARING 1.003X1.253X0.75

R431002722 PIVOT PIN 0.2485X2.56

R431002725 PIVOT PIN 2.00X5.72-(M-1144-13&

R431002732 PACKING RING PILOTAIR-D-N014

R431002734 VALVE STEM PILOTAIR-D-N014

R431002735 VALVE STEM PILOTAIR-D-N014

R431002737 SPRING RETAINER PILOTAIR-D-N014-STOP

R431002742 LEVER PILOTAIR-D-N014

R431002757 SHAFT CO****OLAIR-2A

R431002767 HOUSING CO****OLAIR-H-2-F

R431002774 SLOTTED SPRING PIN 0.187X0.62

R431002779 VALVE SOLENOID PILOTAIR-D-N014-120V&

R431002780 VALVE SOLENOID PILOTAIR-D-N012-240V&

R431002782 VALVE SOLENOID PILOTAIR-D-N014-24VDC

R431002783 VALVE SOLENOID PILOTAIR-D-N014-12VDC

R431002784 VALVE SOLENOID PILOTAIR-D-N014

R431002787 VALVE SOLENOID PILOTAIR-D-109-138VDC

R431002788 VALVE SOLENOID PILOTAIR-D

R431002794 ASSEMBLY KIT ROD END F/2 1/4 A CYL

R431002795 CAM CO****OLAIR-HC-2-L

R431002804 CAM CO****OLAIR-HC-2-L

R431002807 CO****OLAIR-H-2-EX-(0-65)

R431002808 CO****OLAIR-H-2-EX-(0-100)

R431002809 CO****OLAIR-H-2-EX-(0-125)

R431002818 CO****OLAIR-H-4-(0-65)

R431002819 CO****OLAIR-H-4-(0-100)

R431002820 CO****OLAIR-H-4-(0-125)

R431002821 CO****OLAIR-H-4-(0-150)

R431002822 CO****OLAIR-H-4-(0-30)

R431002823 CO****OLAIR-HD-2-FX-(0-65)

R431002824 CO****OLAIR-HD-2-FX-(0-100)

R431002825 CO****OLAIR-HD-2-FX-(0-125)

R431002826 CO****OLAIR-HD-2-FX-(0-150)

R431002827 CO****OLAIR-HD-2-LX-(0-65)

R431002828 CO****OLAIR-HD-2-LX-(0-100)

R431002829 CO****OLAIR-HD-2-LX-(0-125)

R431002830 CO****OLAIR-HD-2-LX-(0-150)

R431002831 CO****OLAIR-HD-2-X-(0-65)

R431002832 CO****OLAIR-HD-2-X-(0-100)

R431002833 CO****OLAIR-HD-2-X-(0-125)

R431002834 CO****OLAIR-HD-2-X-(0-150)

R431002835 CO****OLAIR-HC-2-X-(0-65)

R431002836 CO****OLAIR-HC-2-X-(0-100)

R431002837 CO****OLAIR-HC-2-X-(0-125)

R431002654 Aventics安沃馳石油機(jī)械閥

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