| 摘要 |
An orifice installation for centering the orifice aperture (52) within a plate carrying device (32) is disclosed. The orifice installation uses an orifice plate (50) in cooperation with a seal (64) that surrounds the outer edge (62) of the orifice plate (50) to seal the plate to a fitting (56). Reliefs (76) are formed in the nonsealing portion of the surface of the seal (64) through which the orifice plate (50) outer circumference (62) protrudes. The carrying device (32) is provided to receive the plate and the seal. A mechanism is provided to have contact between the carrying device (32) and the protrusions (78) in order to use the manufacturing tolerances of the plate (50) and the carrying device (32) to center the plate in the carrying device. |
