Data Sheet for Product

Technical Instructions MVL661… Modulating Refrigerant Valves
Document Number 155-400 Valves with Magnetic Actuator
May 11, 2016
Page 2
Product Summary
Product
Numbers
Line
Size
Inch
(mm)
C
V
(k
vs
)
CV (k
vs
)
Reduced
1)
p
max
psi
(MPa)
Q
0
E
(kW)
Q
0
H
(kW)
Q
0
D
(kW)
MVL661.15-0.4
1/2
(15)
0.46
(0.40)
363
(2.5)
47
9.2
1.7
0.29
(0.25)
29
5.7
1.0
MVL661.15-1.0
1/2
(15)
1.2
(1.0)
117
23
4.2
0.73
(0.63)
74
14
2.6
MVL661.20-2.5
3/4
(20)
2.9
(2.5)
293
57
10
1.8
(1.6)
187
37
6.6
MVL661.25-6.3
1
(25)
7.3
(6.3)
737
144
26
4.6
(4)
468
92
17
MVL661.32-12
1-1/4
(32)
13.9
(12)
29
(0.2)
2)
2)
50
9.2
(8)
2)
2)
33
1)
63% of C
V
(k
vs
), see CV (k
vs
) Reduction, page 4.
2)
MVL661.32-12.0 is only approved for suction throttle applications
k
vs
Nominal flow rate, in m
3
/h, of refrigerant through the fully open valve (H
100
) at a differential pressure of
100 kPa (1 bar) to VDI 2173
C
V
Nominal flow rate, in gpm, of refrigerant through the fully open valve (H
100
) at a differential pressure of
1 psi.
Q
0
E Refrigeration capacity in expansion applications
Q
0
H Refrigeration capacity in hot-gas bypass applications
Q
0
D Refrigeration capacity in suction throttle applications and p = 7 psi (0.5 bar)
Q
0
With R407C at t
0
= 32°F (0°C), t
c
= 104°F (40°C).
The pressure drop across the evaporator and condenser is assumed to be 4.35 psi
(0.3 bar) each, and 23 psi (1.6 bar) upstream of the evaporator.
The capacities specified are based on superheating by 6K and sub-cooling by 2K.
The refrigeration capacity for various refrigerants and operating conditions can be
calculated for the 3 types of applications using Table 4 through Table 9.
For accurate valve sizing, Siemens Industry, Inc. recommends the valve selection
program Refrigeration VASP.
Ordering
Replacement Parts
Valve body and magnetic actuator form one integral unit and cannot be separated.
Example:
Product Number
Description
Quantity
MVL661.15-0.4
Refrigerant valve
1
If the valve’s electronics become faulty, the entire electronics housing must be
replaced. Order product number ASR61.