Flanged Pneumatic Angle Seat Piston Valve – ASPVSS-F Series
A versatile 2/2 way flanged pneumatic angle seat piston valve designed for air, water, steam, vacuum and chemically compatible fluids. Available in normally closed, normally open or double acting configurations, the ASPVSS-F series combines robust stainless steel construction, high flow capacity and extensive control options for demanding industrial process applications.
Key Features
✓ 2/2 way normally closed operation
✓ Optional normally open or double acting versions
✓ Pneumatic pilot operation
✓ Visual position indicator included
✓ High-flow flanged design
✓ 316 stainless steel body and internals
✓ PTFE valve seals as standard
✓ Suitable for steam, vacuum and corrosive media
✓ Multiple feedback and modulating control options
✓ Free UK delivery available
Technical Specification
Function: 2/2 way normally closed
Optional normally open or double acting versions
Operation: Pneumatic pilot operated
Pilot Media: Air or inert gas
Pilot Connection:
DN10 to DN50: 1/8 BSP
DN65 to DN100: 1/4 BSP
Pilot Pressure: 5 to 9 Bar
Port Sizes: DN10 to DN100 PN16 flanges
Optional JIS10K, ANSI 150 lb or Tri-Clamp connections available
Body Material: 316 stainless steel (CF8M)
Internal Components: 316 stainless steel
Actuator Head: 304 stainless steel
Optional polycarbonate actuator available
Orifice Sizes: 11 mm to 95 mm depending on valve size
Kv Flow Factor: 58.3 to 1966.7 L/min based on water with 1 Bar pressure drop
Actuator Sizes: 40 mm to 160 mm depending on valve size
Mounting Position: Any position
Pressure Ratings
Flow Over Seat (2 → 1): 0 to 16 Bar
Flow Under Seat (1 → 2): 0 to 13 Bar
Anti-water hammer configuration available
Seal Materials
Valve Seals: PTFE standard
Optional FKM or NBR
Actuator Seals: FKM
Suitable Media
Air
Water
Steam
Vacuum
Gases
Corrosive acids and alkalis compatible with stainless steel and PTFE
Thick glutinous fluids up to 600 cSt
Temperature Range
Media Temperature: -20°C to +200°C
Ambient Temperature: -10°C to +80°C
Media Viscosity: Up to 600 cSt
Position Feedback & Control Options
Open Proximity Switch (PS)
LED indication
10-30V DC
IP67 protection
Normally closed valves only
Mechanical Position Switches (E2)
Open and closed position feedback
LED indication
2 x SPDT switches
12-48V DC
IP65 protection
Modulating Positioner (M1)
4-20mA input
LED position indication
Accuracy ±0.2%
IP65 protection
Intelligent Positioner (M2)
4-20mA input
Digital display
Accuracy ±0.1%
IP66 protection
Position switch and controller options available for automation and remote monitoring
Port Size:
3/8 Flange DN10, 1/2 inch Flange DN15, 3/4 Flange DN20, 1 inch Flange DN25, 11/4 inch Flange DN32, 11/2 inch Flange DN40, 2 inch Flange DN50, 21/2 inch Flange DN65 , 3 inch Flange DN80 , 4 inch Flange DN100
Pressure:
0.02 Bar (20 mBar), 0.1 Bar (100 mBar), 0.2 Bar (200 mBar), 0.3 Bar (300 mBar), 0.4 Bar (400 mBar), 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar, 12 Bar, 13 Bar, 14 Bar, 15 Bar, 16 Bar
Options required:
Anti Water Hammer, Bi-Directional Flow, Position Feedback Closed, Position Feedback Open+Closed, Position indication Visual , Position proximity switch - Open
