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No. 300 Check Valve

$37.31$930.07

Used as an all purpose check valve for multiple applications, including cold and warm water, ethylene, glycol and air.

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SKU: 300 Category: Tags: , , ,

Type: Check Valve / Material: Bronze / Seal: Buna-S / Fluid Types: Air, Non-Potable Water

Buna-S Rubber Poppet for General Purpose Applications

The No. 300 check valve is made of a one-piece cast brass body. Designed to operate in any position, a sensitive spring has been added to close the poppet automatically. The rubber poppet is fully-formed around a solid steel insert to provide greater strength in commercial applications. 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
300-038 3/8" 2 GPM 2.63" 1.16" 050 lb.
300-050 1/2" 4 GPM 2.69" 1.40" 0.45 lb.
300-075 3/4" 6 GPM 3.31" 1.62" 0.80 lb.
300-100 1" 13 GPM 3.69" 2.00" 1.05 lb.
300-125 1-1/4" 24 GPM 4.57" 2.41" 1.80 lb.
300-150 1-1/2" 38 GPM 4.88" 2.69" 2.25 lb.
300-200 2" 61 GPM 5.56" 3.34" 3.10 lb.
300-250 2-1/2" 69 GPM 6.79" 3.81" 7.15 lb.
300-300-F 3" * 110 GPM 7.40" 4.71" 11.80 lb.
300-300 3" ** 69 GPM 6.79" 3.81" 6.60 lb.
300-400 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 NameSpecs
BodyCast Bronze C84400
Stem303 Stainless Steel
PoppetBuna-S Rubber
Spring 302 Stainless Steel
Cup Washer 304 Stainless Steel
Locknut18/8 Stainless Steel
Country of OriginMade in the USA
Max. Temperature225°F
Working Pressure400 psi
Cracking Pressure 1-2 lbs.
Opt. Cracking Pressure 1/2, 5, or 10 lbs.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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