Diaphragm control valve having a universal diaphragm mounting location

摘要

A diaphragm control valve has a universal diaphragm mounting location, the diaphragm control valve includes a bonnet, a valve body, a diaphragm, and a clamping washer. The bonnet includes a first clamping surface that transitions into a first annular retention surface formed by a skirt, and the valve body includes a second clamping surface that transitions into a second annular retention surface formed by an upturned annular lip.

主权项

1. A method of assembling a control valve, the method comprising:
providing a bonnet including a mounting flange and a bonnet clamping surface that transitions into a first annular retention surface formed by a skirt; providing a valve body having a body clamping surface facing the bonnet clamping surface, the body clamping surface transitioning into a second annular retention surface that is formed by an upturned lip, a gap being formed between the upturned lip and the skirt; providing a clamping washer, the clamping washer having a body and a ledge extending outward from the body, the ledge being thinner than the body; and clamping an elastomeric diaphragm between the bonnet clamping surface and the body clamping surface, the upturned annular lip having a height that is greater than an uncompressed thickness of the elastomeric diaphragm, the body of the clamping washer compressing a portion of the elastomeric diaphragm.