Position the diaphragm on the piston assembly so that it is facing up as shown in Figure 8.
将隔膜放置在活塞总成上，使其如图8所示面朝上。
This kind of valve is comprised of piston assembly, spring, valve plate assembly and center pipe.
这种阀主要由活塞总成、弹簧、阀板总成及中心管等组成。
Now place the piston assembly on a flat, firm surface with diaphragm facing up as shown in Figure 9.
现在将活塞总成放在平整稳定的表面上，如图9所示让隔膜面朝上。
应用推荐