K Factor For Deluge Nozzle

The flow rate of a nozzle is given by.

Nozzle diameter limit. The rules specify that if a spray nozzle with an. 16 0203 516 mm 12 173 no. Q flow k nozzle discharge coefficient or k factor for head p pressure.

Nozzle factor spray angle a b c af. K factor metric 18 22 26 30 35 41 51 64 79 91 102. The k factor of the nozzles can be easily altered and the spray angle can also be adjusted from straight stream to wide fog.

Q kp 05. Q k p. June 2020 page 2 of 6 hd 109.

Upright and pendent foam water sprinklers k30 model tn 17 model tn 17 168 k240 k factor horizontal spray nozzle open model tn 25 horizontal spray nozzle open k factor 252 k360 dds duct deluge system for the protection of ventilation ductwork handling corrosive gases blow off plugs open sprinklers and protectospray nozzles. In its most common form the formula allows us to calculate the discharge flow from the nozzle fire sprinkler water mist or a deluge nozzle if we are given the head pressure and k factor we can also calculate the k factor or the pressure required with this formula. Spray angle 650 800 900 1000 1100 1200 1400 1600.

Drencher nozzles are open sprinklers available in two different styles and with different orifice sizes k factors to accommodate most system design requirements. Table a and for any system where the water is likely to contain obstructive material. K factor us 126 154 18 210 245 287 357 448 553 637 714.

Us k factor metric k factor 142745. These nozzles have a higher flow and a larger coverage than deluge nozzles. Q k p where p is supply pressure in kgsqcm k nozzle constant k factor in metric.

The shown nozzle has a built in device which allows for easy adjustment of the direction of the spray. Each nozzle body permanently marked with model number batch number spray angle k factor ul fm mark. Each chart gives the k factor for the nozzles for the allowed number of spray rows and spray angle for a given vessel diameter.

Displaystyle qk sqrt p where q is the flow rate in litres per minute lm p is the pressure at the nozzle in bar and k is the k factor is given in units of. We can rewrite the formula to. 95 mm diam eter ie no.

K factors calculated in metric units. For systems utilizing nozzles with a flow path less than 38 in. Dimension in millimeters approximate discharge characteristics.

The discharge from a sprinkler head or water mist nozzle can be calculated from the formula below. The gw type s range of drencher nozzles offers the latest in design and performance both highly compact and durable. Bete is pleased to offer assistance in selecting nozzles and materials to meet the detailed specifications required nozzle performance k factor flow vs pressure patterncoverage droplet size etc and documentation requirements associated with approved water spray deluge systems.

Orifice size minimum diameter k factor gpmpsi lpmbar no. K flow rate dm3 min 1 pressure05 barg 1 and relates the flow rate to the water pressure. Hd fire protect pvt.

Spray nozzles can be fire sprinklers or water mist nozzles hose reel nozzles water monitors and deluge fire system nozzles.