| Items |
 /ImgCustom/1001/placeholder_notavailable.gif DN-1-1/2 1-1/2 Inch (in) Wafer Check Valve |
/ImgCustom/1001/placeholder_notavailable.gif DN-2 2 Inch (in) Wafer Check Valve |
/ImgCustom/1001/placeholder_notavailable.gif DN-2-1/2 2-1/2 Inch (in) Wafer Check Valve |
/ImgCustom/1001/placeholder_notavailable.gif DN-3 3 Inch (in) Wafer Check Valve |
/ImgCustom/1001/placeholder_notavailable.gif DN-4 4 Inch (in) Wafer Check Valve |
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| Description | ||||||||||
| Brands | TVI | |||||||||
| Type | Wafer | |||||||||
| Nominal Size | 1-1/2 in | 2 in | 2-1/2 in | 3 in | 4 in | |||||
| Dimension D1 | 0.89 in | 1.26 in | 1.57 in | 2.13 in | 2.76 in | |||||
| Dimension D2 | ||||||||||
| Dimension D3 | 3.76 in | 4.30 in | 5.12 in | 5.71 in | 6.45 in | |||||
| Dimension P | 1.38 in | 1.77 in | 2.36 in | 2.83 in | 3.54 in | |||||
| Dimension L | 0.63 in | 0.79 in | 0.79 in | 0.79 in | 0.87 in | |||||
| Dimension H | 0.99 in | 1.80 in | 2.00 in | 2.90 in | 3.60 in | |||||
| Dimension R | 68 in | 73 in | 75 in | 73 in | 72 in | |||||
| Working Pressure1 | 145 psi | |||||||||
| Pressure to Open | 0.1 psi | |||||||||
| Required Back Pressure | 1 psi | |||||||||
| Weight Per Valve | 1 lb | |||||||||
| Flow Coefficient Value (Cv) | 26 | 58 | 77 | 105 | 224 | |||||
| Materials of Construction |
Part - Body Pcs - 1 Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Chlorinated Polyvinyl Chloride (CPVC), and Polyvinylidene Fluoride (PVDF) Part - Flapper Pcs - 1 Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Chlorinated Polyvinyl Chloride (CPVC), and Polyvinylidene Fluoride (PVDF) Part - Flapper Mounting Screw Pcs - 1 Material - Polypropylene (PP) Part - O-Ring Pcs - 1 Material - Unplasticized Polyvinyl Chloride (UPVC) and Viton® Part - Installation Device Pcs - 1 Material - SS 316 Stainless Steel Part - Spring Pcs - 1 Material - SS 316 Stainless Steel |
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| Body and Flapper |
Polyvinyl Chloride (PVC), ASTM D-1784 Polypropylene (PP), ASTM D-4101 Polyvinylidene Fluoride (PVDF), ASTM D-3222 |
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| Flapper Mounting Screw | Polypropylene (PP), ASTM D-4101 | |||||||||
| Seals (O-Rings) |
Ethylene Propylene Diene Monomer (EPDM) Fluorocarbon, Viton® (Dupont Dow Elastomers) |
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| Installation Device | 316 Stainless Steel | |||||||||
| Connection | Wafer style to fit between ANSI B16.5 Class 150 Flanges | |||||||||
| Options |
316 Stainless Steel Spring Assist Spacer |
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| Design Advantages |
Vertical or Horizontal operation Economic ~ Simple and durable construction Compact ~ Requires little space in piping system Easy Installation ~ Wafer body fits between standard ANSI flanges (2-1/2" & 3"valves require spacers) Body Construction ~ Light Weight, Chemical Resistant, Non-Corrosive Available with 316 SS Spring Assist. |
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| Applications |
Water and Waste Treatment Chemical Industry Environmental Industry Process Industry Systems Engineering |
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| Testing Procedure | Testing performed on Polyvinyl Chloride (PVC)/Ethylene Propylene Diene Monomer (EPDM) valves at 73 ºF water temperature, non-shock. | |||||||||
| Note | Wafer Checks are not full port valves. R = Disc angle in the open position | |||||||||
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