Figure 7-5. - V-Notch Gas Feeder-typical installation, 3 to 200 lb/24 hr.

Figure 7-7 shows a typical chlorine piping installation. A vacuum will pull on the diaphragm in the gas pressure-regulating valve and open the inlet valve. The entrance of chlorine will hold this vacuum at a fairly constant value. Since the vacuum on the upstream side of the V-notch variable orifice is somewhat higher, the vacuum-regulating valve is designed to maintain a constant drop across the V- notch variable orifice. The V-notch plug can be manually, electrically, or pneumatically operated.

NOTE: For variable vacuum operation, the injector vacuum must be at least 10 inches of mercury.

OTHER TYPES OF CHLORINATORS

You may find other types of chlorinators at naval activities. Among other types that may be at your activity are the vacuum-type mechanical-diaphragm chlorinator, the volumetric vacuum-type chlorinator, the vacuum-type diaphragm-controlled chlorinator,