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AV-3W Sanitary Check Valve with Butt-weld Ends

Availability : In stock

Specification:

Sizes are available from 1/2″ to 4″ (1/2″, 3/4″, 1”, 1 1/2″, 2″, 2 1/2″, 3″, 4″)

DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)

Valve body can be AISI 304 or AISI 316L.

Valve seat: EPDM, VMQ (silicone), Viton (FPM) for choose from, all complying with FDA 21CFR177.2600.

End connection can be butt-welded, sanitary clamp, threaded or others upon request.

Max. working pressure: 145psi (10bar)

Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)

Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.

Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

SKU: AV-3W Category:

Application

Sanitary check valve, also known as “non-return valve”, is designed for use in process piping installations to prevent reverse flow. AV-3W series is a spring check valve with butt-weld ends.

 

Specification:

Sizes are available from 1/2″ to 4″ (1/2″, 3/4″, 1”, 1 1/2″, 2″, 2 1/2″, 3″, 4″)

DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)

Valve body can be AISI 304 or AISI 316L.

Valve seat: EPDM, VMQ (silicone), Viton (FPM) for choose from, all complying with FDA 21CFR177.2600.

End connection can be butt-welded, sanitary clamp, threaded or others upon request.

Max. working pressure: 145psi (10bar)

Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)

Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.

Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

 

Working Principle
A check valve opens when the pressure below the valve plug exceeds the pressure above the valve plug and the spring force. The valve close when pressure equalization has been achieved. The below picture shows the right installation:

Check Valve Installation

Technical Parameters
Steel material Product wetted steel parts AISI 304 or 316L

(1.4306 / 1.4404)

Provided with material inspection report
Other steel parts AISI 304
Seal material Standard EPDM All seal materials comply with FDA 21CFR117.2600
Options VMQ (Silicone) or Viton (FPM)
Pressure Working pressure ≤145psi (10bar)
Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)
Temperature Working temperature 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.
Surface treatment Inside surface treatment Ra 16 ~ 32µin (0.4 ~ 0.8µm)
Outside surface treatment Ra 32 ~ 64µin (0.8 ~ 1.6µm)
Connection End connections can be butt-welded, sanitary clamp, threaded or others upon request.
PDF

/wp-content/uploads/2016/01/AV-3-Sanitary-Check-Valves.pdf

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