Cubemass DCI
Hauser
15
Operating conditions: Process
Medium temperature range
Sensor
• –50 to +200 °C (–58 to +392 °F)
Seals
• Only for mounting kits with threaded connections:
– Viton: –15 to 200 °C (–5 to +392 °F)
– EPDM: –40 to +160 °C (–40 to +320 °F)
– Silicone: –60 to +200 °C (–76 to +392 °F)
– Kalrez: –20 to +275 °C (–4 to +527 °F)
Fluid pressure range
(nominal pressure)
Pressure range of secondary containment
• 25 bar (363 psi)
Rupture element/disk
(optional)
Further information
Limiting flow
5, "Measuring range"
Pressure loss (SI units)
Pressure loss depends on the fluid properties and on the flow rate.
The following formulas can be used to approximately calculate the pressure loss:
DN
Max. nominal pressure
[mm]
[inch]
[bar]
[psi]
1
1/24"
400
5800
2
1/12"
160
2320
4
1/8"
6
¼"
Reynolds number
A0003381
Re
≥
2300
1)
A0003380
Re < 2300
A0003379
Δ
p = pressure loss [mbar]
ν
= kinematic viscosity [m
2
/s]
g
= mass flow [kg/s]
ρ
= density [kg/m
3
]
d = inside diameter of measuring tubes [m]
K, K1 = constants (depending on nominal diameter)
1)
To compute the pressure loss for gases, always use the formula for Re
≥
2300.
Re =
p
n r
· d ·
·
4 ·
g
D
n
r
p = K ·
·
·
0.25
1.75
–0.75
g
D
n
p = K1 ·
·
g
