Description
3 Way Pneumatic Angle Seat Piston Globe Valve – ASPV3SS
The ASPV3SS is a high-flow 3/2 way pneumatic angle seat piston valve manufactured from 316 stainless steel for diverting, switching and process flow control applications.
Unlike conventional 2/2 way angle seat valves, the ASPV3SS provides three-port flow control, making it suitable for diverting media between two process lines, switching between circuits or controlling alternative flow paths.
Available in 1/2", 3/4" and 1" BSP connections with flow rates up to 253 L/min, the valve combines a corrosion-resistant 316 stainless steel body and internals with PTFE seals and a robust stainless steel pneumatic actuator.
Suitable for air, water, steam, vacuum, viscous fluids and chemically compatible corrosive media at temperatures up to +200°C.
Valve Function & Operation
Function: 3/2 way
Operation: Pneumatic piston operated
Control: Double acting / diverting
Function options: Normally closed or normally open configurations
Pilot media: Compressed air or inert gas
Pilot pressure: 5–8 Bar
Pilot connection: 1/8 BSP
Visual position indicator fitted
The three-port design allows the process media to be switched or diverted between alternative flow paths using pneumatic pilot control.
Port Sizes & Connections
Available BSP threaded sizes:
✓ 1/2" BSP
✓ 3/4" BSP
✓ 1" BSP
Optional connections:
✓ NPT thread
✓ Flanged connections
Flow & Orifice
Orifice: 20mm or 25mm depending on valve size
Kv flow factor: 167 or 253 L/min depending on orifice
The large internal flow path provides high flow capacity with relatively low pressure loss, making the ASPV3SS suitable for demanding process and transfer applications.
Pressure Ratings
Flow over seat: 0–16 Bar
Flow under seat: 0–8 Bar
Flow-under-seat installation can be used where an anti-water hammer configuration is required.
Construction
Valve body: 316 stainless steel
Internal components: 316 stainless steel
Actuator head: 304 stainless steel
Actuator diameter: 50mm
Actuator seals: FKM
Valve seals: PTFE standard
Optional valve seals: FKM or NBR
Optional polycarbonate actuator available
The stainless steel construction provides excellent resistance to corrosion and makes the valve suitable for demanding industrial and process environments.
Temperature Range
Media temperature: -10°C to +200°C
Ambient temperature: +5°C to +60°C
Media viscosity: Up to 600 cSt
Suitable Media
✓ Compressed air
✓ Water
✓ Steam
✓ Vacuum
✓ Gases
✓ Process liquids
✓ Viscous fluids up to 600 cSt
✓ Corrosive acids and alkalis compatible with 316 stainless steel and PTFE
Seal and material compatibility should always be confirmed for aggressive chemicals and high-temperature media.
Position Feedback & Control Options
The ASPV3SS can be configured for automated process control and remote valve monitoring.
Available options include:
✓ Open position proximity switch
✓ Open position feedback
✓ Open and closed mechanical switches
✓ LED position indication
✓ Modulating control
✓ Manifold assemblies
These options allow the valve to be incorporated into automated process systems, machinery and PLC-controlled installations.
Typical Applications
✓ Process flow diversion
✓ Three-way fluid switching
✓ Steam systems
✓ Water treatment equipment
✓ Chemical processing
✓ Food and beverage equipment
✓ Pharmaceutical machinery
✓ Vacuum systems
✓ Industrial automation
✓ Process control systems
✓ Viscous fluid handling
✓ Corrosive fluid applications
✓ OEM machinery
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