A.R.I. D040C EN - Manual

MAINTENANCE INSTRUCTIONS
COMBINATION AIR VALVE
BARAK, MODEL D-040-C 1”
GENERAL INSTRUCTIONS
- Routine service is an integral part of the standard
procedure for maintenance of a water supply system.
- Recommended routine maintenance– once or twice a year, according to the
quality and type of the fluids in the system.
PROCEDURE
1. Close the service valve under the valve base before servicing.
2. Unscrew and remove the metal shell assembly (1-6) from the base (8) by turning
the metal shell (2) counterclockwise with the aid of a belt wrench.
3. Remove the clamping stem (5) from inside the valve body (1) and carefully
pull out the float (6) with the attached rolling seal (3).
4. Check the soundness of the rolling seal (3) by washing it with water and
examining it. Note: Replace the rolling seal (3) in case it is torn.
5. Wash the body (1) and the float (6) with clean water and examine for damage.
Note: Replace the float (6) if it is damaged.
6. Clean the discharge elbow (4) to remove insects and debris.
7. Return the float (6) with the attached rolling seal (3) to its original position in
the valve body (1) and lock them into place with the clamping stem (5).
8. Return the metal shell assembly (1-6) to the base (8) and close by turning it
clockwise. Note: First make sure the O-ring (7) is seated properly in the base of
the valve (8).
9. Remember to open the service valve after the servicing.
PARTS SPECIFICATION
NO. DESCRIPTION MATERIAL
1. Metal Shell Cast Iron
2. Valve Body Reinforced Nylon
3. Rolling Seal E.P.D.M.
4. Discharge Elbow Polypropylene
5. Clamping Stem Reinforced Nylon
6. Float Foamed Polypropylene
7. O-Ring BUNA-N
8. Base Brass
1
2
3
5
6
7
8
4