Key Features

  • 2" Pneumatic Shuttle Valve
  • Air-Piloted Axial Valve Design
  • Bidirectional Flow Operation
  • Normally Closed as Standard
  • Normally Open Option
  • Double Acting Options
  • Operating Pressure 0–16 Bar
  • 3–6 Bar Pilot Air Supply
  • Maximum Pilot Pressure 8 Bar
  • 1/8" BSP Pilot Connection
  • NAMUR Pilot Interface
  • Large 50mm Flow Orifice
  • 1183 L/min Water Flow
  • Up to 180 Cycles Per Minute
  • 304 Stainless Steel Body
  • Optional 316 Stainless Steel
  • FKM/Viton Seals as Standard
  • Optional EPDM Seals
  • Temperature up to +150°C
  • DIN EN 12266 Class A Leakage
  • Optional Position Feedback
  • Low Pressure-Drop Flow Path

Datasheets

Description

2" Stainless Steel Pneumatic Shuttle Valve – AASV20


The AASV20 2" Stainless Steel Pneumatic Shuttle Valve is a high-flow air-piloted axial valve designed for rapid ON/OFF control in pneumatic automation, air logic and industrial process systems.

Featuring a large 50mm orifice and straight-through axial flow path, the AASV20 delivers an impressive 1183 L/min water flow at 1 Bar pressure differential, helping minimise pressure drop and flow losses in high-volume applications.

Manufactured from 304 stainless steel (CF8) as standard, with 316 stainless steel (CF8M) available as an option, the valve operates from 0 to 16 Bar and can be configured for normally closed, normally open or double acting operation.

Valve Function & Operation

The AASV20 is a 2/2-way pneumatically operated axial shuttle valve designed for automatic isolation and control of liquids and gases.
The standard configuration is normally closed, with normally open and double acting configurations also available.
Operation is provided by an external pneumatic pilot supply through a 1/8" BSP connection and NAMUR interface.
Recommended pilot pressure: 3 to 6 Bar
Maximum pilot pressure: 8 Bar
The AASV20 is capable of operating at frequencies up to 180 cycles per minute, making it particularly useful for automated systems requiring rapid and repeated valve operation.

Ports & Connections

Standard process connection: 2" BSP
Alternative connection options include:
✓ NPT thread
✓ Flanged connections
Pilot connection: 1/8" BSP

Pressure & Flow Performance

Operating pressure: 0 to 16 Bar
Orifice: 50mm
Water flow: 1183 L/min at 1 Bar ΔP
Maximum media viscosity: 600 cSt
Maximum operating frequency: 180 cycles per minute
The large 50mm internal flow path provides exceptional flow capacity for a compact pneumatically operated valve.

Bidirectional Axial Flow Design

The AASV20 uses a straight-through axial flow path, helping reduce unnecessary changes in fluid direction as media passes through the valve.
This improved fluid dynamic design helps minimise pressure drop and loss of flow, making the 2" valve particularly suitable for high-flow process and pneumatic applications.
The valve is also bidirectional, providing additional flexibility when designing automated pipework and fluid control systems.

Construction & Materials

Standard body: 304 Stainless Steel CF8
Optional body: 316 Stainless Steel CF8M
Internals: 304 Stainless Steel CF8
Standard seals: FKM / Viton
Optional seals: EPDM
The stainless steel construction provides good mechanical strength and corrosion resistance for demanding industrial applications.

Seal & Temperature Options

FKM / Viton
Operating temperature: -20°C to +150°C
Suitable for many compatible oils, gases and industrial process fluids.
EPDM
Operating temperature: -20°C to +130°C
Typically selected for compatible water and aqueous fluid applications.
The correct seal material should be selected according to the media, concentration and operating temperature.

Media Compatibility

Subject to material and seal compatibility, suitable media include:
✓ Vacuum
✓ Air
✓ Compressed air
✓ Compatible gases
✓ Water
✓ Most compatible oils
✓ Compatible process fluids
Fluids with viscosities up to 600 cSt can be accommodated.
For aggressive chemicals, fuels or specialist gases, compatibility with the selected stainless steel and elastomer materials should be confirmed before ordering.

High-Speed Pneumatic Operation

With a maximum operating frequency of 180 cycles per minute, the AASV20 is suitable for applications requiring frequent automated switching.
The pneumatic operating principle eliminates the need for a large electric motor actuator while providing rapid valve movement from a compact assembly.
Actual achievable cycle frequency will depend on pilot pressure, pneumatic supply capacity, control valve flow and installation conditions.

DIN EN 12266 Class A Leakage

The AASV20 is specified with DIN EN 12266 Class A leakage, providing tight shut-off for industrial isolation and process control applications.
This makes the valve suitable where reliable closure and minimal leakage are important to the process.
Optional Magnetic Position Feedback
Optional magnetic switches provide open and closed valve position feedback for connection to PLCs, relays and industrial control systems.

Magnetic switch specification:

✓ Open & closed position feedback
✓ Red LED status indication
✓ 10–30VAC/DC supply
✓ Maximum current 100mA
✓ Two PVC cables
✓ IP67 protection
✓ Temperature -10°C to +70°C
This allows the control system to monitor the actual mechanical valve position rather than relying solely on the pneumatic command signal.

Typical Applications

✓ Pneumatic control systems
✓ Air logic systems
✓ Industrial automation
✓ High-flow compressed air
✓ Water control systems
✓ Vacuum applications
✓ Oil and lubricant systems
✓ Process fluid control
✓ High-cycle machinery
✓ Automated process equipment

Why Choose the AASV20?

The AASV20 combines a large 50mm orifice and 1183 L/min water flow with a straight-through axial valve design engineered to minimise restriction.
Its 0–16 Bar pressure range, bidirectional operation and maximum 180 cycles per minute switching frequency make it particularly useful for high-flow and high-cycle automation applications.
With 304 or optional 316 stainless steel construction, FKM or EPDM seals and optional open/closed position feedback, the AASV20 provides a flexible solution for demanding industrial fluid and pneumatic control duties.

Ordering Options

Specify the required:
Function: Normally Closed, Normally Open or Double Acting
Body: 304 or 316 stainless steel
Seals: FKM/Viton or EPDM
Connection: BSP, NPT or flange
Feedback: Optional magnetic switches

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View Technical Specification

Technical Specification

Brand: Connexion

Model: AASV20

Width: 108.00 mm

Height: 108.00 mm

Depth: 207.00 mm

Weight: 5.71 kg

Valve / Product Type: Air Actuated Valve, Shuttle Valve

Body Material: Stainless Steel

Port Size: 2 thread

Function: 2/2 Failsafe Closed, 2/2 Failsafe Open, 2/2 Double Acting

Operation: Direct Acting from 0 Pressure

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

Seals: EPDM, FKM (Viton)

Media: Air, Fluid (Non Aggressive), Fluid (Slight Acid/Alkali), Gases (Non Aggressive), Gases (Slight Acid/Alakli), Oils + Fuels 50cSt Max, Fluid Thick 51>1000cSt, Vacuum (Low), Water, Water (RO/Pure/Demin)

Options required: Position Feedback Closed, Position Feedback Open+Closed

Orifice: 50mm

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Reviews

★★★★★4.2 / 5 5 reviews

★★★★★

2 week delivery time a little disappointing but I was advised 2 weeks, unit is excellent good flow and pressure range, price OK. I would buy more if you had stock, I know its new product, but suggest if you sell an item at least keep some on the shelf. will keep you in mind for next time.

Reviewed on 16/03/2016 by Zack

★★★★★

Many thanks the valves arrived yesterday, great service.

Reviewed on 08/04/2016 by Alistair MacD

★★★★★

Valve arrived on time, very nice unit and much better quality than the unit it replaced. Installed and working well. Good price, excellent support. Thanks for the extra discount for 5 pcs.

Reviewed on 13/04/2016 by Jack

★★★★★

I was pleased with the prompt delivery I had a problem with the valve I bought and emailed them with a question. They replied right away and told me how to resolve it. Very happy with the service. Will check back later with an update if it is successful

Reviewed on 29/04/2016 by John F

★★★★★

I was really angry with previous supplier, too many delays and getting any update was a bit like pulling teeth of of a donkey on heat. In comparison buying from you was like a walk in the park on a warm sunny day, and thoroughly enjoyable experience and one I look forward too again. I cancelled my previous order with original supplier after your units arrived and I really enjoyed informing them that not only were they beaten on price and performance but they were completely annihilated by my new suppliers customer service. Thanks Guys.

Reviewed on 12/05/2016 by Padmawathy

2 BSP Stainless Steel Pneumatic Shuttle Valve 0-16 Bar

★★★★★ 4.2 / 5 (5 reviews)

£507.22 incl. VAT £422.68 ex. VAT

-40% Was £845.35 incl. VAT

Brand: Connexion

Model: AASV20

Stock: 2 in stock

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