Toro 53300 - Manual

A manual covering the Toro PVB (Pressure Vacuum Breaker) device focuses on its essential outdoor installation and maintenance requirements. The guide highlights critical safety measures, such as preventing indoor placement to avoid contamination risks, while detailing proper clearance from ground surfaces. Additionally, it outlines procedures for servicing key components like the float and check valves, emphasizing cleaning and reassembly steps to ensure reliable operation.

Loading the manual

Notice to Installer — This device must not be installed indoors.

The Toro PVB (Pressure Vacuum Breaker) is designed to prevent backflow of contaminated water into the potable
water system due to back-siphoning conditions only. This device should not be installed indoors or where
backflow due to back pressure may occur. Installation of this device should conform to local building and plumb-
ing codes as they apply. Refer to the “Installation Requirements” on page 2 prior to installing this device.

Introduction

The Toro Model PVB is comprised of a positive-seating check valve, a spring-loaded vent float assembly
(located down stream of the check valve), quarter-turn ball valves on the inlet and outlet ports and test cocks
located upstream and downstream of the check valve. The vent float assembly is spring loaded to the open
position and will allow air to enter the system when line pressure drops to 1 PSI (.07 kg/cm

) or below, thus

preventing back-siphoning. This feature permits installation of irrigation control valves downstream of the
PVB. Recommended operating pressure range is 25–150 PSI (1.75–10.6 kg/cm

Installation Instructions

3/4" PVB, Models 220-03 and 220-13 (80-0550 pre-1993)

1" PVB, Models 220-04, 220-14 and 220-54 (80-0560 pre-1993)
1" PVB, Model 53300

OPEN

C.L.

OPEN

C.L.

PVB

Sprinkler

Figure 1 – For Outdoor Installation Only

12" (30.5cm)

minimum

Control

Valve

Critical Level
Line

NOTE TO INSTALLER:

PVB devices MUST BE installed outdoors.

All PVB units must be installed according
to local codes and are NOT APPROVED for
indoor installation (i.e., basement or garage).

"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.