CEA 4001 - 13 Valves; Control Valve Set; Stop Valves; Ring Main Valves

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the following ways:
a) with a suitable corrosion resistant coating applied by the manufacturer;
b) with a petroleum jelly coating applied once before and once after
installation.
The anti-corrosion treatment shall not be applied to sprinkler bulbs.
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13 Valves
13.1 Control Valve Set
Each installation shall have a control valve set.
13.2 Stop Valves
All normally open stop valves which may cut off the water supply to the sprinklers shall:
- close in the clockwise direction;
- be fitted with an indicator that clearly shows whether it is in the open or closed position;
- be secured in the open position by a strap and padlock or secured in an equivalent manner.
NOTE 1: no stop valves are allowed downstream of the control valve set except as stated elsewhere in
these rules. Stop valve downstream of the control valve set should be avoided, where
possible. Where stop valves are installed downstream of the control valve set, they shall be
monitored electrically.
NOTE 2: in locations such as high-rise buildings, where high static pressures are likely, special care should
be taken to ensure that all stop, test, drain and flushing valves are suitable for the
installation pressures.
13.3 Ring main valves
Where sprinkler systems are fed by a ring main supply pipe arrangement on the premises, valves
shall be installed to isolate the ring into sections, in such a way that no section shall include more than
4 control valve sets.
13.4 Drain valves
Drain valves shall be fitted as specified in Table 27 to allow drainage from:
a) immediately downstream of the control valve set or of its downstream stop valve where
such exists;
b) immediately downstream of any subsidiary alarm valve;
c) immediately downstream of any subsidiary stop valve;
d) between a dry pipe or subsidiary control valve set and any subsidiary stop valve installed
for testing;