Product Features:

1. Simple structure and timeless design

Only 4 vent valve body configurations.The simple construction allows for a long time.

The Dolgo vent valve with E-socket has 4 vents (valve dome, rubber seal, moving board, valve cylinder).

It consists of 6 parts with 2 E sockets (bulb socket, rubber ring).

2. Comes with an E-socket for easy maintenance.

For easy inspection and maintenance, an E-socket is included, and the vent valve body is removable.

Do not disassemble the air vent valve.

Except JD-125.

3. A drain port that is perfect for preventing condensation.

Two drain ports on the valve cylinder allow condensation from the valve dome back into the drain.

Position:

Drainage system and installation locations for Dolgo vent valves are as follows:

1. Top of the expansion vent pipe.

2. Loops vent pipe and top of each individual vent pipe.

3. When installing in a drainage transition pipe, set the number of connected sanitary equipment to be used to 5 units.

When installed at the top of the drain pipe, it is installed at a height of 3.3 ft (1 m) or more than 5.9 inches (150 mm) than the overflow edge of the top level appliance.When installed in a drain transition pipe, the exit position of the vent pipe is installed in the downstream side immediately after connecting the top appliance drain to the draining transition pipe, and at a height of 5.9 inches (150 mm) than the overflow edge of the highest appliance on the floor.

The bottom floor is a separate system.