Check-Flex G2-F Duckbill Check Valve

Inline Duckbill valve for high backpressure rating

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Nominal Pipe Size

Check-Flex G2-F0100
OD: 220mm
L: 270mm
H: 94mm

PN6: BCD Ø170mm 4x M16
PN10: BCD Ø180mm 8x M16
PN16: BCD Ø180mm 8x M16
Check-Flex G2-F0150
OD: 285mm
L: 325mm
H: 146mm

PN6: BCD Ø225mm 8x M16
PN10: BCD Ø240mm 8x M20
PN16: BCD Ø240mm 8x M20
Check-Flex G2-F0200
OD: 340mm
L: 380mm
H: 196mm

PN6: BCD Ø280mm 8x M16
PN10: BCD Ø295mm 12x M20
PN16: BCD Ø295mm 12x M20
Check-Flex G2-F0250
OD: 405mm
L: 450mm
H: 246mm

PN6: BCD Ø335mm 12x M16
PN10: BCD Ø350mm 12x M20
PN16: BCD Ø355mm 12x M24
Check-Flex G2-F0300
OD: 460mm
L: 515mm
H: 296mm

PN6: BCD Ø395mm 12x M20
PN10: BCD Ø400mm 12x M20
PN16: BCD Ø410mm 12x M24
Larger sizes built to order
Consider G5-F
Table displaying model, style, pipe size range, and pipe connection options for various products.
ModelStylePipe Size RangePipe Connection
-S-C-W-F / -Fi / -Fd-G
G5Inline Fabricated80–3000mm----
G5MInline Moulded100–150mm-
G5-RESIInline EN13564-180–200mm-
G4Duckbill Fabricated100–2400mm-----
G3Duckbill Fabricated100–2400mm-----
G3MDuckbill Moulded100–150mm-
G2Inline Duckbill Fabricated50–300mm-