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Series PAMX-FSO - 316SS Body, Air-Actuated Valves
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DatasheetDatasheet(188 KB)
PAMX-FSO
Bi-Directional Model
Air-Actuated Valve Series
½"-2"
NPT Connection
½"-2"
Orifice Size
0-230 psi
Operating Pressure
14-360°F
Media Temperature
14-140°F
Ambient Temperature

ABOUT SERIES PAMX-FSO AIR-ACTUATED VALVES
These are bi-directional air-actuated valves. The liquid flow can go from port 1 to 2 and from port 2-1. These valves are anti-waterhammer capable when the water flow goes from port 2 to port 1. The air-actuated valves in this series are available from ½" to 2" NPT in 316 stainless steel.
Series PAMX-FSO - Cross-Sectional View
Technical Specifications
Media Temperature: 14-360°F
Ambient Temperature: 14-140°F
Body Material: Stainless steel AISI 316L
Seal Material: PTFE
Pilot Media: Air, Inert Gases, Water
Optical Position Indicator: Standard
Anti-Waterhammer Design: With 2→1 Flow
Additional Information
Flow type: Normally Closed
Flow direction: Bi-Directional (1→2/2→1)
Medium Examples: Water, Oil, Air, Steam,
                             Aggressive Media*
*Working pressure with steam is 150 psi maximum.
Note: Actuator housing 360° rotation.
AVAILABLE VALVE MODELS
To view valve dimensions, select any model number below.
Model # NPT Orifice Flow
Rate
(CV)		 Operating
Pressure
(PSI)		 Flow
Direction		 Pilot
Pressure
(PSI)		 Actuator
Diameter
        Min Max Over/Under
Seat		 Min Max  
PAMX 15 FSO ½" ½" 4.8 0 230/230 1→2/2→1 55 150 2 ½"
PAMX 20 FSO ¾" ¾" 9.0 0 230/230 1→2/2→1 55 150 2 ½"
PAMX 25 FSO 1" 1" 21.4 0 230/160 1→2/2→1 55 150 2 ½"
PAMX 32 FSO 1 ¼" 1 ¼" 31.0 0 230/85 1→2/2→1 55 150 2 ½"
PAMX 40 FSO 1 ½" 1 ½" 48.3 0 175/60 1→2/2→1 55 150 2 ½"
PAMX 50 FSO 2" 2" 59.3 0 115/35 1→2/2→1 55 150 2 ½"
PAMX 25-90 FSO 1" 1" 21.4 0 230/200 1→2/2→1 48 115 3 ½"
PAMX 32-90 FSO 1 ¼" 1 ¼" 31.0 0 230/175 1→2/2→1 48 115 3 ½"
PAMX 40-90 FSO 1 ½" 1 ½" 48.3 0 230/115 1→2/2→1 48 115 3 ½"
PAMX 50-90 FSO 2" 2" 59.3 0 230/72 1→2/2→1 48 115 3 ½"
SERIES PRESSURE CHART