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PAMX
Normally Closed Model
Air-Actuated Valve Series
½"-2"
NPT Connection
½"-2"
Orifice Size
0-290 psi
Operating Pressure
14-360°F
Media Temperature
14-140°F
Ambient Temperature

ABOUT SERIES PAMX AIR-ACTUATED VALVES
These are normally closed air-actuated valves in 316 stainless steel. The valves in this series are available from ½" to 2" NPT, and have orifices of up to 2". These air-actuated valves are not affected by lightly contaminated media.
Series PAMX - 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
Additional Information
Flow type: Normally Closed
Flow direction: Over Seat (12)
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 Seat Min Max  
PAMX 15 ½" ½" 4.8 0 290 12 25 150 2 ½"
PAMX 20 ¾" ¾" 9.0 0 290 12 25 150 2 ½"
PAMX 25 1" 1" 21.4 0 290 12 25 150 2 ½"
PAMX 32 1 ¼" 1 ¼" 31.0 0 230 12 45 150 2 ½"
PAMX 40 1 ½" 1 ½" 48.3 0 230 12 45 150 2 ½"
PAMX 50 2" 2" 59.3 0 160 12 45 150 2 ½"
PAMX 25-90 1" 1" 21.4 0 290 12 15 115 3 ½"
PAMX 32-90 1 ¼" 1 ¼" 31.0 0 230 12 40 115 3 ½"
PAMX 40-90 1 ½" 1 ½" 48.3 0 230 12 40 115 3 ½"
PAMX 50-90 2" 2" 59.3 0 220 12 40 115 3 ½"
SERIES PRESSURE CHART