fp: Fp Piping geometry factor

In ratral/wcontrolvalve: Meta Analysis Plunger Valves

Description

The piping geometry factor Fp accounts for fittings attached to either the valve inlet or the outlet that disturb the flow to the extent that valve capacity is affected. Fp is actually the ratio of the flow coefficient of a valve with attached fittings to the flow coefficient (kv) of a valve installed in a straight pipe of the same size as the valve.

Usage

fp(kv, dn, d1, d2)

Arguments

kv	Flow coefficient in m³/h
dn	diameter in millimeter (mm).
d1	Inlet diameter reducer only in millimeter (mm).
d2	Outlet diameter increase only in millimeter (mm).

Value

Fp Piping geometry factor, dimensionless

Examples

fp(kv = 7247.229, dn =0.5, d1 = 0.6, d2 = 0.6)

ratral/wcontrolvalve documentation built on Nov. 26, 2020, 11:18 p.m.