Electrically Deluge Valve 68 DE EL PORV-MR
Electrically or pneumatically, pilot controlled manual reset deluge/pre-action valve, actuated by the pipeline pressure. The valve is closed in its normal, set position and opens when the pneumatic pressure drops in a gas pressurized pilot line, releasing a hydraulic relay, or by an electric command. An emergency manual release valve is fitted as standard.
FEATURES & BENEFITS
High pressure (PN25/375psi), high flow deluge systems
Automatic or local manual emergency actuation
Hazardous, flammable & explosion classified area fire suppression
Superior design featuring exceptionally low pressure losses at high flow rates
Low lifelong maintenance costs due to straightforward design
Applicable for fresh or brackish water, seawater & foam
Out of box fully assembled & tested valves
Factory trimmed for vertical or horizontal installations without modification
Extensive valve & trim materials selection & corrosion protection coating
CERTIFICATION & COMPLIANCE
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• ANSI FCI 70-2 Class VI seat leakage class
• Fire tested to EN ISO 6182-5:2006 (2”- 6” only)
• UL listed under VLFT category
• Lloyd’s & ABS approvals
TYPICAL APPLICATIONS
Automatic or Manual Actuated Fire Suppression Systems
Petrochemical, Oil & Gas Installations
Tunnels
Power Generation, Transformer & Transmission Plants
Flammable Storage
Hangars & Airport Terminals
Onshore / Offshore
Mining
OPERATION
The basic control valve [1] used in this deluge system is a direct-sealing elastomeric diaphragm, hydraulically operated control valve engineered specifically for fire protection systems.
In the standby position, the deluge valve is held closed by the upstream water pressure, trapped in the valve’s control chamber. The water pressure enters the control chamber through the priming line ball valve [2], a Y-type strainer [3], a check valve [4] and a DMR (Manual Reset Latching Device) [5].
Under fire conditions, the deluge valve opens automatically under either of the following circumstances:
1. A fire alarm control panel (F&G panel) energizes the 3/2-way N.O. solenoid [10] (or de-energizes the coil of a continuously energized ED 100% normally closed solenoid for SIL 3-4 rated systems).
2. The pressure in the dry (pneumatically pressurized) pilot line drops, following bursting of one (or more) of the automatic sprinklers.
When this happens, the pressure in the relay valve [9] drops, causing it to open and allowing the water to drain the deluge valve’s control chamber. The deluge valve opens instantly and allows water to flow the pipeline and through the open sprinklers over the protected area.
Manual emergency actuation is enabled by opening the emergency manual activation valve [6]. The deluge valve opens instantly and allows water to flow the pipeline and through the open sprinklers over the protected area.
When the valve trips open, the DMR isolates the control chamber the upstream pressure source. Reconnecting the upstream pressure to enable the deluge valve to close can only be achieved by pressing the DMR’s knob.
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TYPICAL MATERIALS
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(1) Petrochemical, Oil & Gas
(2) Refer to materials selection guidelines, Engineering Data - Materials: Ductile Iron A-536 65-45-12; Cast Steel A-216 WCB; Cast Steel A-352 LCB; Austenitic
Stainless Steel A-351/CF8M; Super Duplex 2507; Nickel-Aluminum-Bronze B-148 UNS C95800
(3) Consult factory
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