No. F351

Lead-Free Single-Tapped

Description

Now offering our same high quality valves with lead-free materials, certified by NSF to contain less than 0.25% lead by weighted average. The lead-free series is compliant with CA, LA, MD, VT state laws and U.S. Safe Water Drinking Act. The lead-free line comes standard with a Buna-S rubber poppet, an extremely durable compound for use with 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.

Application

Single-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.

Flow Rate (Cv)
Size GPM
1" 14
1-1/4" 21
1-1/2" 38
2" 59
2-1/2" 69
3" * 185
3" ** 69
4" 240

Cv is flow (GPM) with a 1 psi differential pressure.

Material Specifications
Part Name Material
Body Cast Bronze C89833 or C87500
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

Operational Specifications
Max. Temperature 225°F
Working Pressure 400 psi
Cracking Pressure 1-2 lbs.
Opt. Cracking Pressure 1/2, 5, or 10 lbs.

Dimensions
Pipe Size Part Number Over-all Length Valve Diameter Valve Weight
1" F351-100 3.69" 2.00" 1.25 lbs.
1-1/4" F351-125 4.57" 2.41" 2.00 lbs.
1-1/2" F351-150 4.88" 2.69" 2.45 lbs.
2" F351-200 5.56" 3.34" 3.90 lbs.
2-1/2" F351-250 6.79" 3.81" 7.15 lbs.
3" * F351-300-F 7.40" 4.71" 11.80 lbs.
3" ** F351-300 6.79" 3.81" 8.15 lbs.
4" F351-400 10.00" 5.80" 21.70 lbs.

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.

Notes

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