User Guide

Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves
Document Number 155-196P25
May 20, 2008
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 (<15 psi steam,
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) 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
Table 1. Body Temperature-Pressure Rating.
Temperature Pressure
Valve Body
°F °C psig (kPa)
-20 to 150 (-30 to 66) 400 (2758)
200 (93) 385 (2655)
250 (121) 365 (2586)
Bronze/
Forged Brass
300 (149) 335 (2300)