No. 352 Check Valve
$65.69 – $1,060.53
Double-tapped check valve is generally used for submersible pump installations or when it is necessary to attach a pressure switch, pressure gauge, snifter valve, drain or blow lines, or adding chemicals. Offered in 1/8″ or 1/4″ NPT tapping.
Type: Check Valve / Material: Bronze / Seal: Buna-S / Fluid Type: Non-Potable Water / Special Use: Double-Tapped
Double-Tapped Check Valve with Buna-S Rubber Poppet
The No. 352 comes standard with a Buna-S rubber poppet, an extremely durable compound for use with non-potable drinking water. All other internal components of stainless steel. Each valve is tested twice for casting integrity and backflow prevention. All valves are 100% American-Made and built to last.
Dimensions
| Part Number | Pipe Size | Flow Rate (Cv) | Overall Length | Valve Diameter | Valve Weight |
|---|---|---|---|---|---|
| 352 -100 | 1" | 13 GPM | 3.69" | 2.00" | 1.25 lb. |
| 352 -125 | 1-1/4" | 24 GPM | 4.57" | 2.41" | 2.00 lb. |
| 352 -150 | 1-1/2" | 38 GPM | 4.88" | 2.69" | 2.45 lb. |
| 352 -200 | 2" | 61 GPM | 5.56" | 3.34" | 3.90 lb. |
| 352 -250 | 2-1/2" | 69 GPM | 6.79" | 3.81" | 7.15 lb. |
| 352 -300-F | 3" * | 110 GPM | 7.40" | 4.71" | 11.80 lb. |
| 352 -300 | 3" ** | 69 GPM | 6.79" | 3.81" | 8.15 lb. |
| 352 -400 | 4" | 205 GPM | 10.00" | 5.80" | 21.70 lb. |
Cv is flow (GPM) with a 1 psi differential pressure. NPT threaded. **New valve: Standard female threads on both ends, Cv factor of 185. **Original valve: 2-1/2" valve body with 3" male thread on both ends, Cv factor of 69.
Materials & Operational Specifications
| Part Name | Specs |
|---|---|
| Body | Cast Bronze C84400 |
| Stem | 303 Stainless Steel |
| Poppet | Buna-S Rubber |
| Spring | 302 Stainless Steel |
| Cup Washer | 304 Stainless Steel |
| Locknut | 18/8 Stainless Steel |
| Country of Origin | Made in the USA |
| Max. Temperature | 225°F |
| Working Pressure | 400 psi |
| Cracking Pressure | 1-2 lbs. |
| Opt. Cracking Pressure | 1/2, 5, or 10 lbs. |
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