Check-Flex G4-W Duckbill Check Valve

Wall mounting duckbill valve with level invert

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Nominal Pipe Size

Check-Flex G4-W0100
ID: 104
L: 276
H2: 225
W: 200 H: 200
Anchors: 4x M12
Check-Flex G4-W0150
ID: 154
L: 326
H2: 380
W: 250 H: 250
Anchors: 4x M12
Check-Flex G4-W0200
ID: 205
L: 359
H2: 455
W: 300 H: 300
Anchors: 4x M12
Check-Flex G4-W0225
ID: 231
L: 421
H2: 483
W: 350 H: 350
Anchors: 4x M12
Check-Flex G4-W0250
ID: 254
L: 450
H2: 520
W: 350 H: 350
Anchors: 4x M12
Check-Flex G4-W0300
ID: 308
L: 605
H2: 608
W: 500 H: 500
Anchors: 4x M16
Check-Flex G4-W0400
ID: 410
L: 705
H2: 788
W: 650 H: 650
Anchors: 4x M16
Check-Flex G4-W0525
ID: 525
L: 835
H2: 958
W: 800 H: 800
Anchors: 12x M16
Check-Flex G4-W0600
ID: 616
L: 970
H2: 1096
W: 900 H: 900
Anchors: 12x M16
Check-Flex G4-W0800
ID: 812
L: 1200
H2: 1394
W: 1100 H: 1100
Anchors: 12x M20
Check-Flex G4-W0900
ID: 924
L: 1400
H2: 1690
W: 1200 H: 1200
Anchors: 20x M20
Check-Flex G4-W1000
ID: 1015
L: 1410
H2: 1766
W: 1200 H: 1300
Anchors: 20x M20
Check-Flex G4-W1100
ID: 1129
L: 1510
H2: 1920
W: 1400 H: 1400
Anchors: 20x M20
Check-Flex G4-W1200
ID: 1231
L: 1640
H2: 2070
W: 1600 H: 1600
Anchors: 28x M20
Check-Flex G4-W1350
ID: 1385
L: 1745
H2: 2280
W: 1800 H: 1800
Anchors: 28x M20
Check-Flex G4-W1500
ID: 1541
L: 1865
H2: 2410
W: 2000 H: 2000
Anchors: 36x M20
Check-Flex G4-W1600
ID: 1642
L: 1890
H2: 2580
W: 2000 H: 2000
Anchors: 36x M20
Check-Flex G4-W1800
ID: 1847
L: 2150
H2: 2945
W: 2300 H: 2300
Anchors: 36x M20
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-