DeZurik APCO AVV-150 Gebruiksaanwijzing - Pagina 6
Blader online of download pdf Gebruiksaanwijzing voor {categorie_naam} DeZurik APCO AVV-150. DeZurik APCO AVV-150 13 pagina's. Air/vacuum valve with optional csv surge check valve
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DeZURIK
APCO AVV-140/150 with CSV-1600 Option Slow Closing
Air/Vacuum Valves
Maintenance
(Continued)
7. Inspect seat (A6) and float (A14) seating surfaces for damage. Replace if necessary.
8. Inspect all other parts of the valve such as guide bushings (A26 & A43), bumper (A40), and
float guide (A33) if applicable. Replace if necessary.
Surge Check Valve 3-24" (80-600mm) Only
See Figures 1-4 for part identification.
Replacement parts are not available for the 1-2" (25-50mm) Surge Check Valves. It is recommended to
replace the complete valve.
9. Remove studs (P2) and nuts (P3) and remove Air/Vacuum Valve body (A1) from Surge Check
Valve body (S1).
10. Loosen seat retaining screw (S7), located on the face of seat (S2). Push down plug (S3), to
compress spring (S4), then release plug to knock out seat.
11. Remove plug (S3), spring (S4), retaining ring (S6) and bushing (S5) from body (S1).
12. Clean all surfaces before re-assembly. Replace all defective parts.
Assembly Procedure
Surge Check Valve 3-24" (80-600mm) Only
See Figures 1-4 for part identification.
Replacement parts are not available for the 1-2" (25-50mm) Surge Check Valves. It is recommended to
replace the complete valve.
1. Install the parts inside the body (S1) in the following order:
a. Bushing (S5) at the center of the hub.
b. Spring (S4) centering on the bushing (S5).
Note: If conical spring, smaller diameter of spring should fit the outside diameter of bushing.
c. Plug (S3) with the concave side facing upward.
d. Seat (S2). Tighten seat retaining screw (S7) when flush with flange face.
2. If gasket (P1) is damaged, install new gasket making sure gasket fully covers the seat (S2) face.
3. Assemble Air/Vacuum Valve body (A1) to Surge Check Valve body (S1).
Air/Vacuum Valve 1-20" (25-500mm) Only
See Figures 1-2 for part identification.
For information regarding 24" (600mm) Air/Vacuum Valves, contact your local DeZURIK sales
representative.
4. Clean surface of recess in cover (A2) and install seat (A6) with seat screws (A16/A34).
5. Install bumper (A40) and float (A14) in body (A1).
6. Assemble cover (A2) and gasket/O-ring (A3) to body (A1). Tighten cover bolts (A4) opposite
each other in rotation.
7. Install and secure pipe plug and perform a seat test per Step 4 of Disassembly Procedure.
8. If valve was removed from pipeline, place valve in pipeline, and open isolation valve on inlet to
Air Valve. Valve is now back in service.
D12021
Page 6
June 2019