installation operation maintenance - leader … · electrically operated deluge valve is a...

LEADER FPS : Fire Protection Solutions - / 12

Electrically Actuated Deluge Valve

INSTALLATION

OPERATION

MAINTENANCE

This document specifies the operating concept of LEADER DELUGE Valve,

UL listed when trimmed per the following technical data sheet.


General description Electrically actuated deluge valve

1. The valve opens instantly when an electric signal, by means of continuous current, is applied to a solenoid valve.

2. Stoppage of the electric signal will enable re-closure of the valve after the

upstream separation valve is closed.

3. In the case of failure of the automatic activation system, manual emergency activation is possible.

4. A downstream outlet, which is an integral part of the main valve control trim,

can be connected to a hydraulic alarm bell (not supplied by the factory).

5. A 50mm Outlet on the upstream side of the main valve, enables draining of the valve inlet side. 5.1. A manual valve (optional), can be supplied as a standard feature, and

assembled on this outlet.

6. A 12mm (1/2”) low-pressure relief valve is mounted on the downstream side of the valve, to prevent the filling of the sprinkler system as a safety precaution against faulty sealing of the main valve. This Relief valve closes instantly when the main valve is activated by the electric or manual command.

7. A 12mm (1/2”) screen filter is assembled on the pressure line which supplies

the main valve control trim and the detection system, to ensure clean operating water preventing clogging.

8. In case of a temporary decrease in the inlet pressure, the main valve will remain in the closed position.

Electrically operated deluge valve is a weir-type hydraulic valve, activated automatically or manually. The valve is mounted on the upstream side of a fire- extinguishing sprinkler system, preventing flow into the system at its “Ready” position.


Pre-Installation recommendations Electrically actuated deluge valve

1. The valve position for installation can be vertical (with the upstream side positioned at the bottom) or horizontal. 2. Manual isolating valves (not supplied) should be assembled upstream and downstream of the Deluge valve. 3. A 12mm (1/2”) outlet should be provided upstream of the inlet isolating valve, for the connection of the control water pipeline. 4. A draining facility, for the water drained during the valve test procedure, should be prepared.

Fig. 1 - General layout

Note : RED components are supplied as integral parts of the valve


Operation Modes Electrically actuated deluge valve

Electric

activation

Ready

Manual

activation

Manual activation


Design Data Electrically actuated deluge valve

1. Headloss chart

2. Operating conditions:

Valve size Max. recommended flow Flow factor

Equal pipe lenght

mm Inch m3/h L/min Kv Cv m Feet

50 2 32 532 102 119 8 25

80 3 80 1333 155 181 7 22

100 4 130 2167 210 245 11 38

150 6 270 4500 605 710 11 36

200 8 510 8500 870 1020 24 78

250 10 800 13330 1147 1340 45 148 * Calculated for V=5m/s (15ft/s), nominal pipe, Chw=100

2.1. Max. recommended flow velocity 5.5m/s (18 ft./s) 2.2. Pressure Rating 12 bar (175psi) 2.3. Min. system pressure 1.5 bar (22 psi)


Installation Electrically actuated deluge valve (refer to fig. 1)

1. The valve should be installed in vertical position while upstream side is at the bottom. Horizontal position is allowed. Sufficient space for maintenance should be left around the valve location. 2. The valve should be positioned in such a way that enables convenient access to the emergency activation valve [d]. 3. Isolating valve (gate or butterfly type) should be installed upstream the Deluge valve. 4. Valve [b1] of the control assembly should be connected by a ½” galvanized steel pipe to the main supply pipe, upstream the isolating valve. 5. A Water- driven Alarm bell (not supplied by the factory) should be connected, by a ½” galvanized steel pipe, to point [b5 ] of the control assembly.

6. The solenoid valve [a] should be connected, by appropriate cable, to the electric control source. 7. The 2” draining valve, outlet pipes of emergency manual valve [b2], the normally-closed solenoid valve [a] should be connected to a suitable drainage pipeline.


Activation Circuit Connection Electrically actuated deluge valve (refer to fig. 2)

1. The control chamber of the main valve is connected to a pressure source upstream

the inlet isolating valve.

2. The upstream connection includes the following items: - Isolating valve [b1] - Screen filter [c] - Check valve [d]

- Restricting nozzle [e] All are 1/2" size.

3. A 2/2, Normally-Closed Solenoid valve [a], UL listed, releases the pressure from the control chamber of the main valve, on electric signal sent by the system's control panel. This operation opens instantly the main valve.

4. Manual activation of the valve is enabled by the Emergency Valve [b2]. Opening of

this valve drains the control chamber of the main valve and causes instant opening.

5. A Water-Alarm motor [i] can be connected to the valve. This unit is activated by a connection to the outlet of the valve, and is controlled by set of control valves : - Valve [b5], which is Normally-Open. - Valve [b3], which is Normally-Closed and enables the test of the alarm without

opening of the main valve. - Valve [b4], which is Normally-Closed and enables draining of the alarm system.

6. Drip valve [h] that is assembled in the outlet of the main valve. It allows automatic

drain of water that may be accumulated in the outlet of the main valve, in case of faulty leaking valve. This Drip valve closes drip-tight when the pressure rises due to opening of the main valve.

7. Upstream drain valve [j] that enables the draining of the pipe section between

upstream isolating valve and the Automatic valve.

8. Pressure gauges enable visual inspection of the inlet pressure [g1] and detection line pressure [g2].

9. A pressure switch [P] can be connected to the control chamber, allowing electric

indication to opening.


Main components (UL approved): a. 2/2 N.C. 12mm Solenoid b. ½" Ball valve c. Screen filter d. ½" Non- return valve e. 1.5mm Nozzle Tee g. Pressure gauge

h. Drip valve i. Alarm (not supplied) j. Drain valve (optional) P. Pressure Switch (not supplied)


Commissioning Procedure Electrically actuated deluge valve (refer to fig. 2)

The following procedures should be carried as written, in addition to relevant NFPA requirements standards or other local applicable regulations. It is recommended that the installation and adjustment will be carried by a qualified person.

1. Check the following:

- Isolating valve, upstream the Deluge valve, is in closed position - Valves [b1, b5] are in “open” position (the handle parallel to pipe axis), and valves

[b2, b3, b4, j] in closed position (the handle perpendicular to the pipeline axis).

2. Open the 2” draining valve at the downstream side of the Deluge valve.

3. Open slightly the upstream isolating valve, allow the pipe section upstream the valve to fill

until no air is released through the 2” draining valve; Wait for closure of the Deluge valve, indicated by stoppage of water flow in the draining valve.

4. Ensure maximal designed pressure at the inlet of the Deluge valve.

5. Activate the solenoid [a] by an electric signal. The valve should open instantly.

6. Stop the electric signal.

7. Test the alarm bell: - Close control valve [b5] - Open control valve [b3]. Alarm bell should be activated. - Close valve [b3], and drain the bell pipe by valve [b4]. Close this valve when no

water flows.

8. Close the upstream isolating valve; wait for re-closure of the Deluge valve. Closure time may be extended to 0.5 - 4 minutes, according to valve size.

9. Reset the main valve: - Close draining valve in the discharge side - Open fully the isolating valves upstream the Deluge valve. Lock the valve. - Remove the handle of valves [b1, b3, b4, b5]


Operating Procedure Electrically actuated deluge valve

Periodical Check-up and Maintenance 1. This procedure is recommended to be executed monthly. 2. In the case of valve activation due to fire event, it must be carried immediately after the event was finished and the fire- extinguishing system is returned to "Ready" position. 3. The following procedures should be carried as written, in addition to relevant NFPA requirements. 4. The owner of the valve is responsible for the setting, inspection, routine tests and maintenance of the valve in compliance with the procedure and the NPFA standards or other local applicable regulations. 5. It is recommended that the tests and maintenance will be carried by a qualified person. 6. As some of the tests activate alarm device, it is necessary to advise the local personnel and external fire- protection authorities before the test is carried. 7. Repeat the "Commissioning Procedure" steps. 8. Inspect filter [c]: Close upstream isolating valve and valve [b1], open the cover of the filter, remove the screen element, clean and reassemble. Open upstream isolating valve and valve [b1].

1. The valve is activated normally by the electric command or by rupture of one (or more) sprinkler in the detection line. 2. Stoppage of the activation command may cause valve closure within 0.5-4 minutes

3. In case of emergency, lift the cover of the emergency valve [b2], and turn the handle of the valve as shown on the plaque in the box. 4. For re-closure of the main valve: close upstream isolating valve and return of the handle of the emergency valve to “close” position. The main valve will close within 0.5-4min. The main valve will close within 0.5-4min.


Control System’s Components Electrically actuated deluge valve

N° Description Material

1 Valve Body 2 1/2"M-F valve Brass

3 Pressure gauge Stainless steel

4 1/2" Check valve Brass

5 1/2" Filter Brass

6 2/2, N.C. Solenoid 12mm 1/2"

Brass + Stainless steel

7 Emergency Box Stainless steel

8 Restrictor Tee Brass

9 1/2"M-F Connector Stainless steel

10 2" Angle valve Brass

11 1/2" Drip valve Brass

12 1/2" M-F-M Tee Brass

13 1/2" F-F-F Tee Brass

14 1/2"M-M Connector Brass

15 1/2" M-M

Angle Connector Brass

16 1/2"-1/4"M-F Connector Brass

17 1/4" M-F Angle Connector

Brass

18 1/2" M-F connector Brass

19 2" F-F Galv. Nipple Cast Iron

20 1/2"M-1/2"C Angle Connector

Brass

21 1/2"M-3\8C Angle connector

Brass

22 1/2" Control Tube Copper

23 1/2" Eyelet Nut Brass

24 1/2" Plug Brass

25 3/8" Eyelet Nut Brass

26 1/2" Connector Brass

27 3/8" Connector Brass

28 Locking Nut Brass

29 ID Tag Aluminium

30 "Emergency" Sticker

31 "Close/Open" Sticker

Ductile Iron body Standard Bronze body On request


Dimensions Electrically actuated deluge valve

installation operation maintenance - leader … · electrically operated deluge valve is a...

Documents