Price AW-I Series, Руководство по установке

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Manufacturer Pipe size (in.) Model
Maximum Leakage rate
(bubbles/10sec)
Honeywell
1, 1 ¼ V4943, V8943 13
1 ½, 2 V4943, V8943 16
¾, 1, 1 ¼, 1 ½ V5055, V5097 14
2, 2 ½, 3 V5055, V5097 24
ASCO
¾ K3A551/651 6
1 K3A551/651 6
1 ¼ K3A551/651 7
1 ½ K3A551/651 9
For valves not listed contact the valve manufacturer for testing procedure and acceptable leakage rate.
Safety Shut-off Valve Leak Test:
Safety shut-off valves require a qualified technician to perform a leak (bubble) test to determine tightness of closure on a least
an annual basis. A very small amount of leakage is normal. Valve leakage rates exceeding those noted in the table below require
repair or valve replacement.
1. De-energize the control system.
2. Close the upstream manual gas valve.
3. Connect a ¼” (6mm) tube to the outlet pressure tap on the
safety shut-off valve.
4. Immerse the opposite end of the ¼” (6mm) tube (cut to
a 45° angle) vertically ½” (13mm) into a clear container of
water.
5. Count the number of bubbles appearing during a 10
second period.
6. If the bubble rate is greater than that noted in the table,
repair or replace the valve.
7. If bubble rate is less than noted in the table, remove the ¼”
(6mm) tube and reconnect the outlet pressure tap plug.
8. Energize the control system and open upstream manual
gas valve.
9. After testing, check all piping connections and plugs for
external leakage.
The table below indicates the maximum number of bubbles in relation to the size and type of valve.
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AW-I
INSTALLATION INSTRUCTIONS
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