No. 400

Stainless Steel Poppet

Description

Strataflo 400 Series check valves with metal poppets are ruggedly constructed and are suitable for use in a wide variety of heavy industrial applications. The proprietary stainless steel poppets are finely machined for a metal-to-metal seal. Each valve is tested twice for casting integrity and backflow prevention. All valves are 100% American-Made and built to last.

Application

Used as an all purpose check valve for multiple applications, including hot water, cold water, steam, oil, gas, compounds and chemicals. Steam 125 lbs.

Flow Rate (Cv)
Size GPM
3/8" 2
1/2" 3
3/4" 6
1" 14
1-1/4" 21
1-1/2" 39
2" 64
2-1/2" 77
3" * 191
3" ** 77
4" -

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

Material Specifications
Part Name Material
Body Cast Bronze C84400
Stem 303 Stainless Steel
Poppet 303 Stainless Steel*
Spring 302 Stainless Steel
Cup Washer 304 Stainless Steel
Locknut 18/8 Stainless Steel
Country of Origin Made in the USA

* 1-1/2" - 3" sizes contain a 304 stainless steel poppet

Operational Specifications
Max. Temperature 350°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
3/8" 400-038 2.63" 1.16" 0.50 lb.
1/2" 400-050 2.69" 1.40" 0.45 lb.
3/4" 400-075 3.31" 1.62" 0.80 lb.
1" 400-100 3.69" 2.00" 1.05 lbs.
1-1/4" 400-125 4.57" 2.41" 1.80 lbs.
1-1/2" 400-150 4.88" 2.69" 2.25 lbs.
2" 400-200 5.56" 3.34" 3.10 lbs.
2-1/2" 400-250 6.79" 3.81" 7.15 lbs.
3" * 400-300-F 7.40" 4.71" 11.80 lbs.
3" ** 400-300 6.79" 3.81" 6.60 lbs.
4" - - - -

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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