Owner's manual

COMBINATION AIR VALVE

BARAK, MODEL D-040-C 2”

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 uids in the system.

PROCEDURE

1. Close the service valve under the valve base before servicing.

2. Loosen and remove the four bolts and nuts (9).

3. Remove the metal shell (2) and enclosed valve body (1).

4. Remove the clamping stem (5) from the valve body (1) and carefully pull out the

oat (6) with the attached rolling seal assembly (3).

5. Check the soundness of the rolling seal assembly (3) by washing it with water

and examining it. Note: Replace the seal assembly (3) in case it is torn.

6. Wash the body (1) and the oat (6) with clean water and examine for

damage. Note: Replace the oat (6) if it is damaged.

7. Clean the drainage elbow (4) to remove insects and debris.

8. Return the oat (6) with the attached rolling seal assembly (3) to its original

position in the valve body (1) and lock them into place with the clamping stem (5).

9. Place the metal shell (2) and enclosed valve body (1) on the base (8).

Note: First make sure the O-ring (7) is seated properly in the base of the valve (8).

10. Attach by inserting and tightening the four bolts and nuts (9).

11. 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 Assembly

4. Drainage Elbow Polypropylene

5. Clamping Stem Reinforced Nylon

6. Float Foamed Polypropylene

7. O-Ring BUNA-N

8. Base Brass

9. Bolt & Nut Cast Iron

MAINTENANCE INSTRUCTIONS

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