Brass Threaded Check Valve
with Brass Spring-Loaded Piston, 1/4 NPTF Female





Fitting Type | Connector |
Inlet | |
Connects to | Pipe |
Fitting Connection | Threaded |
Gender | Female |
Thread Type | NPTF |
Connection Port | Inlet |
Outlet | |
Connects to | Pipe |
Fitting Connection | Threaded |
Gender | Female |
Thread Type | NPTF |
Connection Port | Outlet |
Body Material | Brass |
Piston Material | Brass |
Check Valve Type | Spring-Loaded Piston |
Pipe Size | 1/4 |
Flow Coefficient (Cv) | 1.1 |
Maximum Pressure @ Temperature | 1,000 psi @ 70° F |
Minimum Opening Pressure | 0.3 psi |
Temperature Range | 10° F to 400° F |
Spring Material | 304 Stainless Steel |
Seal Material | Fluoroelastomer |
End-to-End Length | 2 1/16" |
For Use With | Air, Argon, Helium, Krypton, Neon, Water, Xenon |
Actuation | Pressure |
Chemical Resistance | |
Excellent | Air, Argon, Butane, Carbon Dioxide, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Isopropyl Alcohol, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Natural Gas, Neon, Nitrogen, Oil, Oxygen, Propane, Water, Xenon, Xylene |
Poor | Acetone, Ammonia, Chlorine, Drinking Water, Methyl Ethyl Ketone (MEK), Salt Water, Steam, Sulfuric Acid, Citric Acid (25% Concentration), Citric Acid (50% Concentration), Citric Acid (100% Concentration), Hydrochloric Acid (25% Concentration), Hydrochloric Acid (37% Concentration), Hydrochloric Acid (100% Concentration), Nitric Acid (25% Concentration), Nitric Acid (50% Concentration), Nitric Acid (100% Concentration), Phosphoric Acid (25% Concentration), Phosphoric Acid (50% Concentration), Phosphoric Acid (100% Concentration), Sodium Hydroxide (Caustic Soda) (25% Concentration), Sodium Hydroxide (Caustic Soda) (50% Concentration), Sodium Hydroxide (Caustic Soda) (75% Concentration), Sodium Hydroxide (Caustic Soda) (100% Concentration), Sodium Hypochlorite (Bleach) (25% Concentration), Sodium Hypochlorite (Bleach) (50% Concentration), Sodium Hypochlorite (Bleach) (100% Concentration) |
Mounting Position | Any Angle, Horizontal, Vertical |
Outlet Pipe Size | 1/4 |
Shape | Straight |
Valve Function | Backflow Prevention |
Valve Type | Check |
Warning Message | Chemical compatibility must be determined by the customer based on the conditions in which the product is being used, including the presence of other chemicals, temperature, and consistency. |
Country of Origin | United States |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 848130.1090 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
These valves open to allow flow in one direction and close when flow stops or reverses.
Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
The information in this 3-D model is provided for reference only.

























