安沃驰AVENTICS石油机械阀R431002654

石油机械呼吸阀

保护油罐安全的重要附件

机械呼吸阀主要满足储罐大小呼吸的通气要求与阻火器配套安装在储存甲、乙、丙类液体的储罐顶上。

机械呼吸阀是保护油罐安全的重要附件，装设在油罐的顶板上，由压力阀和真空阀两來洎頭條部分组成。它的作用在一般情况下，保持油罐的密闭性，在一定程度上减少油品的蒸发损耗。而在必要时，能自动通气调节平衡油罐内外压力，对油罐起到安全作用

呼吸阀

机械呼吸阀是靠阀盘自身的重量，控制油罐的呼气压力或吸气真空度，保持罐内一定压力。其压力阀的额定控制压力一般为2kPa，真空阀的额定控制压力一般为-0.5kPa。当罐内油气压力大于油罐允许压力时，油蒸汽经压力阀外逸，此时真空阀处于关闭状态；当罐内油气压力小于油罐允许真空度时，新鲜空气通过真空阀进入罐内，此时压力阀处于关闭状态，允许压力（或真空压力）靠调节盘的重量来控制。

使用中必须注意：呼吸阀座盘若太轻或有损坏，容易使罐内轻质油品的蒸气大量向罐外散逸，或阀盘升降失灵，就有可能使油罐产生****或压瘪变形的危险。机械呼吸阀有时会锈蚀发生堵塞，在冬季会因油蒸汽内含水而使阀盘与阀座冻结。

某厂氧化车间罐区对二甲苯罐式常压罐，氮气密封，压力位0.02MPa，超压气体由罐顶呼吸阀排出。在收料时，由于呼吸阀冻结，气体排不出去，罐体受压，导致罐底鼓起，罐体角焊缝破裂，使对二甲苯跑损8來洎6。5頭條7吨。

R431002654 Aventics安沃驰石油机械阀型号

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安沃驰石油机械阀

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