Three Way Butterfly Control Valve0 pages

M O D E L
9937
APPLICATIONS
Aerospace
Military
Industrial
Medical
Automotive
FEATURES
Proportional Flow Control
Position Feedback
High Flow & Minimal Pressure Drop
Large Orifice, Three-Way Valve
SPECIFICATIONS
Part Number:
(Liquid) 9937-6-000
(Air) 9937-8-000
Service Fluid:
Water, Ethylene Glycol, Air,
Various Coolants
Weight:
10.7 lb (4.85 Kg)
Operating Pressure:
46.6 PSIG (3.2 Bar): 9937-6
55.0 PSIG (3.75 Bar): 9937-8
Flow:
650 SCFM Air: 9937-6
170 GPM (660 LPM): 9937-8
Pressure Drop:
3 PSI (0.21 Bar) @ 170 GPM
(660 LPM) through Port C: 9937-6
5.8 PSI (400 mBar) @ 46.6 PSI
inlet and 650 SCFM Air: 9937-8
Temperature Range (Operating):
-4°F to +185°F (-20°C to +85°C)
Operation:
5 Seconds,
Full Open to Full Close
Material:
Aluminum Body
Nitrile, EPR Seats & Seals
Three Way Butterfly
Control Valve
T
he Aerodyne 3-way servo control butterfly valve, Model 9937-6, is
designed as a liquid coolant control valve. This valve diverts flow from
a single inlet (port A) to two outlet ports (B & C). The Model 9937-8 is
designed as an air control valve. This valve directs flow from two inlets
(parts B & C) to a single oulet (port A). The two butterfly elements are
mounted onto a common shaft, allowing a single motor to actuate the
valve. The outlet ports are configured to operate inversely (i.e. port B
opens as port C closes). The brushless DC motor allows for fine servo
control of flow between port B and C.
The valve can be used as a diverting valve (on/off) function, or as a
mixing valve (modulating function). Rotary potentiometer feedback allows
for precise positional control. The users control signal can be used to
determine the position of the valve. The valve’s control can be modified
for each application’s requirement.
Custom fluid controls and motion sensors since 1958
30 Haynes Court
Ronkonkoma, New York 11779
Phone: 631-737-1900
Fax: 631-737-1912
www.aerodyne-controls.com