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Brass Check Valve 3/8" FPT Inlet/Outlet 1200 PSI – OEM Replacement Part

Original price $18.00 - Original price $18.00
Original price
$18.00
$18.00 - $18.00
Current price $18.00

Part Number: 3448
Category: Pressure Washer Components → Check Valves → Plumbing & Fluid Control Components
Type: Brass Check Valve 3/8" FPT Inlet & Outlet


The Brass Check Valve 3/8" FPT x 3/8" FPT is a durable one-way flow control valve designed to prevent reverse flow in pressure washer systems, chemical injection systems, water transfer applications, and industrial fluid handling equipment. Engineered with a brass body, stainless steel spring, and O-ring sealed poppet, this check valve helps maintain proper system operation while protecting pumps and components from backflow-related damage.


Key Features & Benefits

  • Durable brass body construction
  • Stainless steel spring for reliable operation
  • O-ring sealed poppet design for improved sealing
  • Prevents reverse flow and system backpressure
  • Helps control chemical flow in injection systems
  • Can be used as an inline check valve or backflow preventer
  • 3/8" FPT inlet and outlet connections
  • Rated for pressures up to 1200 PSI
  • Corrosion-resistant materials for long service life
  • Suitable for commercial and industrial applications

Technical Specifications

Product Type: Check Valve

Material: Brass

Spring Material: Stainless Steel

Seal Type: O-Ring Poppet Seal

Inlet Connection: 3/8" FPT

Outlet Connection: 3/8" FPT

Thread Type: Female Pipe Thread (FPT)

Maximum Working Pressure: 1200 PSI

Maximum Temperature: 180°F

Flow Direction: One-Way


Typical Applications

  • Pressure washer plumbing systems
  • Chemical injection systems
  • Chemical line foot valves
  • Pressure-actuated unloader systems
  • Inline backflow prevention
  • Water transfer systems
  • Agricultural spray equipment
  • Industrial fluid handling applications

Performance Advantages

  • Prevents reverse flow and equipment damage
  • Helps maintain consistent chemical injection performance
  • Protects pumps and plumbing components from backpressure
  • Stainless steel spring ensures dependable valve operation
  • O-ring poppet design improves sealing efficiency
  • Brass construction resists corrosion and wear
  • Supports reliable fluid flow control
  • Improves overall system efficiency and safety
  • Ideal for commercial and industrial applications

Maintenance Recommendations

  • Inspect the valve regularly for leakage or restricted flow.
  • Verify proper flow direction during installation.
  • Flush contaminants from the system to reduce internal wear.
  • Inspect the spring and O-ring seal during routine maintenance.
  • Replace worn or damaged valves immediately.
  • Ensure all connected fittings are rated for system pressure requirements.

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