Siemens Building Technologies Two-inch Pneumatic Valve Actuator Data Sheet
Siemens
Product Guard
Warranty
Two-inch Pneumatic Valve Actuator
Powermite
MT Series Globe
Powermite MT Series
Two-inch Pneumatic Valve Actuator.
Description
The Powermite Two-inch Pneumatic Valve Actuator is
designed for use with the 1/2 to 1-inch Powermite
MT Series Terminal Unit Valves with a 7/32-inch
(5.5 mm) stroke.
Features
• Low prole
• Freely rotates to aid tubing installation
• Easy installation and removal
• All metal housing
• Orderable as an actuator only or as a complete
valve/actuator assembly
Applications
The Powermite Two-inch Pneumatic Valve Actuator is
designed to be used on 1/2 to 1-inch Powermite Terminal
Unit Valves in liquid and steam service applications.
The pneumatic actuator relies on the spring inside the
bonnet assembly of the MT Series valve bodies to return
to the “normal” position.
Recommendation:
Use only for MT Series valve bodies, 1/2 to 1-inch only.
A-145
Valves
Siemens
Product Guard
PLUS 3 Warranty
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2" Pneumatic Actuator Specifications
A-146
Valves
Effective Diaphragm Area ...............................................3.4 in.2 (22 cm2)
Diaphragm Material ..................................................................... Silicone
Nominal Spring Range ................................................. Valve Dependent
Span ..................................................................................... 5 psi (34 kPa)
Nominal Stroke .................................................................7/32" (5.5 mm)
Max. Diaphragm Pressure .......................................... 35 psig (241 kPa)
Air Connection ....................................................1/8" NPT Barbed Fitting
for 1/4" (6 mm) OD Polyethylene Tubing
Ambient Temperature
Transportation ..........................................-40 to +180°F (-40 to +82°C)
Mounting Location .............................................. NEMA 1 (Interior Only)
Dimensions
in.
1"
Center Line
to Top of
Actuator
1
H
3-1/16"
(78 mm)
3-1/16"
(78 mm)
3-5/16"
(84 mm)
Valve
Size
1/2"
(15 mm)
3/4"
(20 mm)
(25 mm)
Service height and width are the recommended dimensions to allow
access to the product.
Service
Height
H W
11"
(280 mm)
11"
(280 mm)
11-1/4"
(285 mm)
Actual
Width
1
4"
(100 mm)
4"
(100 mm)
4"
(100 mm)
Service
Width
W
10"
(250 mm)
10"
(250 mm)
10"
(250 mm)
2" Pneumatic Actuator Product Ordering
Description Part No.
3-8 psig (21-55 kPa) 599-01088 257
8-13 psig (55-90 kPa) 599-01088 258
10-15 psig (69-103 kPa) 599-01088 256
Ordering Note:
Spring is inside bonnet assembly of valve body. Use the Valve
Selection Charts at the front of this section on pages A-25 and
A-27 to determine spring range.
Actuator
Prex Code
Accessories & Service Kits
www.usa.siemens.com/hvac
Dimensions shown in inches (mm).
A-257
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