Powermite 599 Series
Technical Instructions
Document No. 155-196P25
VF 599-5
April 9, 2009
MT Series Terminal Unit
Two-way Valves
Siemens Building Technologies, Inc.
Description
The Powermite 599 Series ANSI Class 250 MT Series two-way valve bodies work with
any MT Series pneumatic or electronic actuator with a 7/32-inch (5.5 mm) stroke.
Features
•
Direct coupled universal bonnet
•
Choice of brass or stainless steel trim
•
ANSI Leakage Class IV (0.01% of Cv)
Application
A typical application for the Powermite two-way valve is the control of hot or chilled
water or low pressure (<15 psi with stainless steel trim only) steam for convectors, fan
coil units, unit conditioners, radiation, reheat coils, and similar terminal units requiring
an actuator that delivers a minimum of 67 pounds force (300 N).
Product Numbers
See Table 2.
Ordering a Valve
Plus Actuator
Assembly
To order a complete valve plus actuator assembly from the factory, combine the
actuator prefix code with the suffix of the valve assembly product number. See
Technical Bulletin TB251
(155-306P25) for selection procedure and ordering codes.
Valve assemblies can be ordered using the numbers in Table 2.
Specifications
Valve size
1/2 inch to 1 inch (15 mm to 25 mm)
Capacity
See Tables 3 through 6 and Figure 1
Body style
Globe
Seat style
Metal-to-metal
Action
Normally open/normally closed
Valve body rating
ANSI Class 250; See Table 1
Stem travel (Stroke)
7/32-inch (5.5 mm)
