Parker比例放大器PCD-00A-400 精品进口 原装密封

Parker放大器PCD-00A-400 精品进口 原装密封
泉州市海科恩机械设备有限公司
the main piston once the vacuum set point is reached. Backflow preventers are available to prevent valve opening on loss of vacuum.

Connections: 1.5" FNPT & 2" - 12" flanged system connection.
Set Pressures: Min. 0.2 - 2.7 psi vacuum (varies by valve size) Max. 14.6 psi vacuum
Temperature Range: -65 to +400 °F
一种变化的F70PR飞行员操作泄压阀泄压阀页面上显示，重新安排，以支持试点管真空操作。大气压力下，本上面的阀口或排气口，这取决于应用程序，提供了所需的升力，以打开主活塞，一旦真空达到设定点。防回流装置可以防止亏损真空阀的开度。

连接1.5“FNPT2” - 12“法兰系统连接。
设定压力：最小。 0.2 - 2.7 psi的真空（阀门尺寸变化）最大。 14.6 psi的真空
温度范围：-65?+400°F

F84-6 Spring Operated Safety Relief Valve
During Cryogenic Flow Testing at Kennedy Space Center
F84-6 Spring Operated Safety Relief Valve
During Cryogenic Flow Testing at Kennedy Space Center
FLOW SAFE 1X2 F7240先导式安全泄压阀

1x2 F7240 Pilot Operated Safety Relief Valve
During Cryogenic Flow Testing at Kennedy Space Center

FLOW SAFE真空泄压阀 F70VP

F70VP Vacuum Relief Valves
A variation of the F70PR pilot operated relief valve (shown on the Pressure Relief Valves page), with pilot tubing rearranged to support vacuum operation. Atmospheric pressure, present at the valve inlet or outlet, depending on the application, provides the lift force required to o