Technical Instructions
Powermite 599 MT Series Terminal Unit 2-way Valves
Document Number 155-196P25
April 9, 2009
Page 2
Siemens Building Technologies, Inc.
Specifications
Material
Body
UNS CA 844 bronze or
forged brass C37700
Body trim
See Table 2
Stem
Stainless steel ASTM A582 Type 303
Packing
Ethylene propylene O-ring
Operating
Spring Range
Normally closed
10 to 15 psi (69 to 102 kPa)
Normally open
3 to 8 psi (21 to 55 kPa)
Controlled medium
Water, low pressure steam
(<15psi with stainless steel trim only),
water-glycol solutions to 50%
Medium temperature range
35°F to 250°F (2°C to 120°C)
Maximum inlet pressure
See Table 1
Maximum recommended differential pressure for modulating service
Brass trim
Stainless steel trim
Liquid
25 psi (173 kPa)
50 psi (345 kPa)
Steam
—
15 psi (103 kPa)
Rangeability Cv <1
>50:1
Cv
>1
>100:1
Close-off pressures
See Tables 7 and 8 and Figure 2
Close-off ratings
According to ANSI/FCI 70-2
Leakage rate
Class IV (0.01% of Cv)
Flow characteristics
Modified equal percentage
Miscellaneous
Canadian Registration Numbers
0H7645.5
0C0838.9
Mounting location
NEMA 1 (interior only)
Dimensions
See Tables 10 and 11 and Figure 4
Valve Weight
See Table 11
Service Kit
Sealing rings for union valves (package of 25)
1/2-inch (15 mm)
698-088
3/4-inch (20 mm)
599-03394
Union connection kit
1/2-inch (15 mm)
599-02941
3/4-inch (20 mm)
599-02942
Protective black knob
to cover the bonnet
and threads/manual
override.
VF0288R1
426888950