Product Overview

Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves
Document Number 155-196P25
February 9, 2018
Page 2 Siemens Industry, Inc.
Specifications
Material
Body
1/2- and 3/4-inch C37700 Forged brass
1-inch UNS CA 844 Bronze
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.
426888950