What is Sprinkler K factor?

What is Sprinkler K factor?

The k-factor for a fire sprinkler is the discharge coefficient, or in normal human terms just relates to the amount of water that is permitted through the sprinkler. The k-factor is dependent upon the orifice diameter of the sprinkler – a low k-factor (such as K2. 0) permit much more water to flow through.

What is K factor for flow meter?

From Wikipedia, the free encyclopedia. For aircraft fuel flow meters, K-factor refers to the number of pulses expected for every one volumetric unit of fluid passing through a given flow meter, and is usually encountered when dealing with pulse signals.

What is sheetmetal K factor?

In sheet metal, the K-factor is the ratio of the neutral axis to the material thickness. When a piece of metal is being formed, the inner portion of the bend compresses while the outer portion expands (see Figure 1).

What is K value of sprinkler?

From Wikipedia, the free encyclopedia. In fire protection engineering, the K-factor formula is used to calculate the discharge rate from a nozzle. Spray Nozzles can be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles.

How do I choose sprinkler K-factor?

Sprinklers K factor should be chosen by analyzing the hazards, design density, minimum operating pressure, ceiling height of the protected area, area of coverage etc. Based on this, I’ve created a tool which allows you to quickly choose the right K Factor. 👉🏻 Comply with NFPA-13-2019 & UAE Fire & Life Safety Code 2018.

How do you calculate airflow K factor?

Calculate air flow rate using the following equation and applicable air flow factor. Flow rate: CFM = K-factor x Flow Factor x Average Velocity 4. Determine K-factor correction flow rate. Flow rate: CFM = Correction factor x Average Velocity 5.

What is the K-factor for mild steel?


Generic K-factors Aluminum Steel
Radius Soft materials Hard materials
Thickness to 3 × thickness 0.40 0.45
Greater than 3 × thickness 0.50 0.50

What is a good K-factor?

This means that to achieve true “growth,” a K-Factor of greater than 1 is the target. Even a K-Factor of 1.01 is a good K-Factor as it means that a game will keep spreading, even if it takes a long time to so. This is the general flow for a game in which it’s possible to send and receive invites.

Why do we use K-factor?

K- and Y-factors make metal bending more precise without damaging the material. Once you know the K-factor you can identify the location of the neutral axis after bending in addition to how much the material elongates during bending.

How do I choose sprinkler K factor?

Which is the correct formula for the K factor?

K-factor = [(180 × BA) / (π × Bend angle complementary × Mt)] – (Ir / Mt) Of course, it’s easiest to use a known K-factor from a table, like in Figure 2. You can use this K-factor and the inside bend radius to calculate the neutral axis. Then use the neutral axis radius to calculate the arc length of the neutral axis—which equals your BA.

How is the K factor related to the thinning sheet?

The thinning sheet forces the neutral axis to shift inward toward the inside bend radius. Describing that shift is what the k-factor is all about. This is the first part of a two-part series.

What is the difference between D2 and K for 3 operators?

For the case of 3 operators, 5 parts and 2 replicate measurements per part, d2=1.150. As observed, the difference between 5 or 6 parts equates to a d2 difference of 0.004. This change is insignificant and will not impact the “K” estimates used to compute our Gage R&R estimates.

How is the K factor used in Pro-ENGINEER?

Because of this it is often used by design software such as Solid Edge, Solid Works and Pro-Engineer, though Pro-Engineer uses a variation called the Y-Factor. If you have a Bend Allowance (BA) you can derive the K-Factor from it. This is useful if you are transitioning from hand layouts to an advanced design software.