VikingSureFire

Pre-actionSystems

Pre-actionSystems

Are: Fixed fireprotection systemswith CLOSEDsprinklers connectedto piping pressurizedwith air or nitrogenwith a dependablewater supplycontrolled by anormally closedDeluge Valve activatedby a release system

Pre-actionSystems

Are Recommended :To prevent water damagedue to mechanicaldamage to system piping.For hazards where fastapplication of water in fireconditions is important

SureFire Pre-actionSystems

Are: Operate in thesame manner asstandard pre-action.SureFire Pre-actionprovides the ability forthe system to operatein the absence ofpower. Standardelectric release pre-action systems will notoperate without power.

SureFire Pre-actionSystems

Are Recommended :Where “Fail-Safe” pre-action is required, orwhere the power supply tothe control panel cannotbe depended upon.

The Release System must activate …..-(Detection ) Solenoid valve opens-(an alarm will sound)

In fire conditions,-After the release system operates water travels from theDeluge Valve to the open sprinkler.-Upon sprinkler opening water flows from sprinkler orificeonto fire.Single interlock preaction does not have the water deliverydelay that a double interlock preaction system has.

SINGLE INTERLOCKED OPERATION

SYSTEMCOMPONENTS

Pre-action System-Components

Deluge ValveDeluge Valve trim

System Control Valve

Sprinklers and Piping

AirSupply

Riser CheckValve

Release control

panel

Single InterlockedSure-Fire Pre-action

Pre-action System-Components

Deluge ValveDeluge Valve trim

System Control Valve

Sprinklers andPiping

AirSupply

Riser CheckValve

Double Interlocked Sure-Fire

Pre-action

Viking SureFireRelease Trim Module

Normally OpenSolenoid Valve

Normally ClosedSolenoid Valve

To pressurizedsystem piping

VIKING DELUGEVALVES

Deluge Valves

Deluge valves are held shut with pressurized water placedin the valve’s priming chamber. The priming chambercontrols a mechanism that keeps the deluge valve’s clapperclosed.The release system controls the water in the deluge valve’spriming chamber. When the release system operates, thepriming chamber is relieved of the priming water, allowingdeluge valve clapper to open.

Deluge Valves

The priming chamber has to be pressurized before the watercontrol valve can be opened, allowing water pressure againstthe deluge valve clapper. A connection has to be placedbefore the water control valve, so the deluge valve can beprimed. Once most deluge systems have operated, they haveto be manually shut down before they can be put back inservice.

Listed at250 PSI

Available 2” through 6”

VikingVikingModel EModel E--11Deluge ValveDeluge Valve

DelugeSystems

Bronze seat

EPDM rubber diaphragmBronze clamp ring

Teflon coatedductile iron clapper Ductile iron body

EPDM &stainlesssteel seatrubber

Priming chamber

Discharge oroutlet chamber

Inlet chamber

DelugeSystems

DelugeSystems

DelugeSystems

DelugeSystems

DelugeSystems

DelugeSystems

DelugeSystems

DelugeSystems

Deluge Valve: Model F-1

Model F-1 Deluge Valve

EZ DELUGE VALVE TRIM

•INSTALLATION &PURPOSE

Deluge Valve

Install the DelugeValve above a watersupply control valve

Deluge Valve

A flow test valve is connected to the inletchamber of the deluge valve

NFPA 25 (1992 ed) recommends “MainDrain Test” to be performed quarterly todetermine if there has been a change inthe water supply piping or controlvalves.

Deluge Valve

Priming line

Deluge Valve

Priming line

Connect priming linesupply below watersupply control valve

Strainer

Priming valve(normallyopen)

Restrictedorifice

Check valve

Deluge Valve Trim

Springloadedcheck

1/16Restrictedorifice

¼” Strainer

¼” Primingline ball valve

Deluge Valve Trim

1/16” Restricted orifice preventsthe priming chamber from re-filling at the same rate as thewater is being released throughthe orifice of the releasingdevice

Deluge Valve Trim

Auxiliary drain (normallyClosed) Open to drain outlet &system piping after operation

Drip check allowsmoisture to escape fromoutlet chamber. It sealsagainst notched seat whenoutlet chamber ispressurized.

To open drain cup

Trim piping connected tooutlet chamber

Deluge Valve Trim

½” (15mm) NPT foralarm pressure switch

Alarm shut off valve(normally open)

¾” (20mm)NPT forwater motoralarm

Viking draincheck valve

Alarm Connections

Deluge Valve Trim

Alarm testconnections & supplypressure connections

Water supplypressure gauge

Alarm test valve (normally closed)

Deluge ValveTrim

To opendrain cup

Primingpressuregauge

Toreleasesystem

Emergencyrelease

Releaseconnections& primingpressuregauge

Deluge Valve EZ Trim

PSOV

To opendrain cup

Prime inlet

Prime Shut Off Valve (PSOV)

Deluge Valve TrimDrain loop

PSOV

To opendrain cup

To releasingdevice

From releasingdevice

Viking PSOV (Prime Shut Off Valve)Eliminates the PORV and shuts OFF thewater supply to the priming chamber

Deluge Valve and Trim

The trim has been slightly modified to better view operating parts

DelugeValve Trim To Release

system

WARNING!! Do not usethis trim for anyautomatically resettabledetection systems, or forpressure regulatingvalves!

When the hydraulic, electric, orpneumatic detection system hasoperated and the Viking delugevalve is tripped, the priming shutoff valve (PSOV) is activated asshown in the following animation.

The trim has been slightly modified to better view operating parts

DelugeSystems

The trim has been slightly modified to better view operating parts

Pneumatically (by either pilotsprinklers or fixed temperature devices

The deluge valve will be tripped either:

Electrically ( by smoke or heatdetectors. Etc., that cause a solenoidvalve to open.)

Hydraulically (by either pilot sprinklersor fixed temperature devices

To detectionsystem

DelugeSystems

To detectionsystem

The trim has been slightly modified to better view operating parts

When the valve trips, waterpressure from the dischargeside of the valve will enterthe sensing side of thePSOV forcing the clapper ofthe PSOV to close againstthe priming pressure,because of its mechanicaladvantage.

DelugeSystems

PSOV Operation

DelugeSystems

PSOV Operation

Priming the DelugeValve

DelugeSystems

PSOV Operation

Priming the Deluge

Valve

DelugeSystems

PSOV Operation

Priming the Deluge

Valve

DelugeSystems

PSOV Operation

Priming the Deluge

Valve

DelugeSystems

PSOV Operation

Deluge valve tripped,

Shutting off priming water

EZ Deluge Trim

•UL Listed and FMApproved

•Stainless Steel Trim &Brass Trim also available

SureFire Release Systems

We will discuss the SureFire release system as itpertains to the deluge valve and it’s trim

Deluge valves are held shut by their release system. In asingle interlocked SureFire pre-action system, we useone release module.

Electric Release

Electric release systems are the mostprevalent type of release systems. Electricrelease offers the most flexibility, as thedetection system can be configured in manyways, and the choices in release devices aregreater than hydraulic or pneumatic.

Solenoid Valves

Solenoid valves are described by their positionwhen non-powered:

1) Normally OpenWhen non-powered the solenoid valve isopen

2) Normally ClosedWhen non-powered the solenoid valve isclosed

Viking SureFireRelease Trim Module

Normally OpenSolenoid Valve

Normally ClosedSolenoid Valve

To pressurizedsystem piping

ReleaseSystems

Viking SureFireRelease Trim Module

24vdc Electric solenoid(normally open)

24vdc Electric solenoid(normally closed)

ReleaseSystems

Viking SureFirerelease trim module

24vdc Electric solenoid(normally open)

24vdc Electric solenoid(normally closed)

Releasing CircuitSolenoid TwoRelease should beNormally Open

Alarm Bell

Remote TroubleSignal

Releaseing CircuitSolenoid OneRelease should beNormally Closed

SureFire Single Interlock PreactionWiring Schematic

System TwoAir pressuresupervisory switch

Detection circuit oneNormally opendetectors

maximum loopresistance is 200ohms

SureFire Single Interlock PreactionWiring Schematic

System One detectioncircuit three (optional)WaterFlow switch circuit

Detection circuit twoclosed pressure dependson water supply pressure(See Chart)

Detection circuit four (supervisorycircuit) closed pressure must begreater than the one from detectiontwo plus 5 psi on pressure loss

Stand byBatteries

Releaseing Circuit

SureFire Single Interlock PreactionWiring Schematic

AC power

Ampmeter Jack

Battery Jack

Voltmeter Jack

Recommended pressure settingsWater Supply

(psi)

DIP switchesSee Function

Table

Recommended pressure settings

Detection CircuitTwo (psi)

Detection CircuitFour (psi)

35+

System Air(psi)

25+

15+

200-250

100-200

0-100

50

40

30

45

35

25

Stand byBatteries

Par 3 Release Panel Function Table

SureFire Single Interlock PreactionWiring Schematic

To Detectioninput one

4-Wire Smoke Detector Connections

SureFire Single Interlock PreactionWiring Schematic

Viking SureFireDouble Interlocked

Pre-action

A second supervisorySwitch is required forDouble interlocked SureFire

SureFire –Double-InterlockedPre-Action

The Release System must activate …..-(an alarm will sound)-AND,-Pressure in the sprinkler piping must be reduced-(due toa sprinkler opening in fire conditions) To trip open theDeluge Valve.

In fire conditions,- After the release system operates and the sprinkleropens, water needs to travel from the Deluge Valve to theopen sprinkler.There may be a time delay similar to a Dry System.

DOUBLE INTERLOCKED OPERATION

The Release System must activate …..-(an alarm will sound)-AND,-Pressure in the sprinkler piping must be reduced-(due toa sprinkler opening in fire conditions)

To trip open the Deluge Valve.In fire conditions,- After the release system operates and the sprinkleropens, water needs to travel from the Deluge Valve to theopen sprinkler.There may be a time delay similar to a Dry System.

DOUBLE INTERLOCKED OPERATION

SureFire release trim is the same for either single ordouble interlocked pre-action. Double interlockedSureFire requires a second supervisory switch in the airsupply line to the riser.

The second supervisory switch operates the normallyclosed solenoid valve only after the detection circuit hasoperated. Both the detection and air pressure has to belost prior to the normally closed solenoid operating.

DOUBLE INTERLOCKED OPERATION

Viking SureFireRelease Trim Module

Normally OpenSolenoid Valve

Normally ClosedSolenoid Valve

To pressurizedsystem piping

Remote TroubleSignal

Releasing CircuitSolenoid OneRelease should beNormally Closed

SureFire Single Interlock PreactionWiring Schematic

Alarm Bell

Releasing CircuitSolenoid TwoRelease should beNormally Open

System TwoAir PressureSupervisory Switch

Detection Circuit OneNormally OpenDetectors

SureFire Double Interlock PreactionWiring Schematic

Detection Circuit Twoclosed pressure dependson water supply pressure

System One DetectionCircuit ThreeWaterflow PressureSwitch

Detection Circuit Four (Supervisory Circuit)Closed pressure must be greater than theone from detection circuit two

To Detectioninput one

4-Wire Smoke Detector Connections

SureFire Single Interlock PreactionWiring Schematic

Par 3 Release Panel Function Table

SureFire Single Interlock PreactionWiring Schematic

Remote TroubleSignal

Relay contacts actuated by

SureFire Single Interlock PreactionWiring Schematic

Detection circuit input one or two orwaterflow alarm switch input three

Detection circuitinput two

Detection Circuit Input one

Supervisory switches, valve tamper, airpressure Etc. input four

Detection Circuit input one or two orwaterflow alarm switch, input three

Panel malfunction or fault in field wiring

Thank You