Val-Matic 49A Wastewater Air Release Valve - Manual (Page 4)

3
WARNING: Wear safety glasses to look into
the valve outlet after installation.
Released fluid can cause injury
.
Option Backwash Assembly
Refer to the drawing on page 3 for the correct piping
arrangement. Please note the each Kit contains
extra fittings such as reducer bushings that may not
be needed for your valve. The fittings should be
installed with a standard pipe compound such as
Oatey White Thread Sealant (supplied) or sealing
tape. The quick disconnect fittings are designed for
easy push and turn connections to a clean water
source.
MAINTENANCE
The Wastewater Air Release Valve should be
scheduled for regular inspection on an annual basis.
Based on experience in service, a more frequent
backwash regimen may be desirable to minimize
leakage.
Inspection
: Periodic inspection to verify operation
can be performed. The valve should not leak fluid at
any connection or through the outlet. If there is
leakage through the outlet, perform a backwash
procedure on the valve. Check to see that air is
being released by cracking open the lower drain
valve. If a large amount of air is released from the
drain valve, then the main valve may be clogged and
cleaning or a backwash procedure should be
performed.
Lubrication
: The Wastewater Air Release valve is
a self-contained automatic valve and does not
require and lubrication to enhance its operation.
Tools
: No special tools are needed to maintain or
repair the valve. The valve can be equipped with
backwash valves and hoses for ease of
backwashing.
Backwash Procedure
: In order to properly
backwash the valve, a ½" clean water supply of at
least 30 psi is needed. This supply should be
connected to the rubber hose with quick disconnect
couplings as provided with the wastewater valve and
shown in Figure 3.
1. Pipe valve B to a drain prior to backwashing.
2. Close inlet valve A.
3. Open valve B.
4. Connect water supply to E and supply water for 3
minutes to flush seat and mechanism area.
5. Re-connect water supply to C and open valve D
to wash the valve body for 1 minute.
6. Close valves D and B.
7. Slowly open valve A to place unit back in service.
FIGURE 3. BACKWASH HARDWARE
Backwash Accessory Kits
Type Inlet Backwash Kit Valve Models
48ABW, 48A.4BW
2” SPK-48ABW
49ABW, 49A.4BW
48A.2BW, 48A.5BW
3” SPK-48A.2BW
49A.2BW, 49A.5BW
49A.3BW, 48A.6BW
Air
Release
Valve
4” SPK-48A.3BW
49A.3BW, 49A.6BW