The point of penetration through the diaphragms is sealed by E-beam welding. When the upper stem rides up and down on its threads it now moves the lower stem by a mechanical connection.

• 通过横膈膜的穿透点用电子束焊接来密封。当上阀杆沿着它的螺纹上下运动时，通过机械连接带着下阀杆一起运动。