Double Disc Duo Plate Check Valve
Double Disc Duo Plate Check Valve - Image 2
Double Disc Duo Plate Check Valve - Image 3

Double Disc Duo Plate Check Valve

Wafer dual plate check valve is used for pure pipeline, industry, environmental protection, water treatment, high-rise building water supply and drainage pipeline to prevent reverse flow of medium. The check valve adopts wafer type connection, butterfly plate is two semicircular. The sealing surface can be body welding wear resistant material or rubber lining.

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Features:

• Double butterfly disc, duo plate

• Connection: wafer, lug, double flange, clamp

• Metal-to-metal sealing or soft rubber sealing

• Body material: cast steel, stainless steel, alloy steel, bronze

• Pressure range: Class 150 to Class 1500

• Size range : DN50 to DN1200

Material List:

Part Name Material
Body WCB, CF8, CF8M, CF3, CF3M, C95800, 904L
Disc WCB, CF8, CF8M, CF3, CF3M, C95800, 904L
Seal ring SS304, SS316, Bronze, EPDM, NBR, PTFE
Spring F304, F316, Inconel X750
Stem F6a, F304, F316, Inconel X750

Dimensions:

ANSI CLASS 150LB
DN 50 65 80 100 150 200 250 300 350 400 450 500 600
NPS 2 2-1/2 3 4 6 8 10 12 14 16 18 20 24
B(mm) 60 67 73 73 98 127 146 181 184 191 203 219 222
ANSI CLASS 300LB
DN 50 65 80 100 150 200 250 300 350 400 450 500 600
NPS 2 2-1/2 3 4 6 8 10 12 14 16 18 20 24
B(mm) 60 67 73 73 98 127 146 181 222 232 264 292 318
ANSI CLASS 600LB
DN 50 65 80 100 150 200 250 300 350 400 450 500 600
NPS 2 2-1/2 3 4 6 8 10 12 14 16 18 20 24
B(mm) 60 67 73 79 137 165 213 229 273 305 362 368 438
ANSI CLASS 900LB
DN 50 65 80 100 150 200 250 300 350 400 450 500 600
NPS 2 2-1/2 3 4 6 8 10 12 14 16 18 20 24
B(mm) 70 83 83 102 159 206 241 292 356 384 451 451 495
ANSI CLASS 1500LB
DN 200 250 300 350 400
NPS 8 10 12 14 16
B(mm) 206 248 305 356 384

Applications:

Pipeline of water treatment, oil and gas industry, chemical, and paper industry.

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