3/8" Brass Spring Check Valve, Lead-Free, Vertical, Iron Pipe x Iron Pipe

3/8" Brass Spring Check Valve – Compact, High-Pressure Backflow Control

Built for precision and durability, the 3/8" Brass Spring Check Valve provides dependable one-way flow control in a wide range of plumbing, hydronic, and fuel line systems. Engineered with a corrosion-resistant brass body, stainless steel spring, and Celcon poppet, this valve is designed to maintain system integrity while preventing backflow under high-pressure conditions.

Its soft-seated, spring-loaded design ensures a quick seal and minimal cracking pressure, making it a reliable component in both vertical and horizontal installations. Ideal for water, oil, and gas systems, this valve is tested to 300 psi working pressure and is suitable for both residential and light commercial applications.

Performance Features

• Lead-Free Brass Body – Compliant with Safe Drinking Water Act standards; suitable for potable water systems.
• 316 Stainless Steel Spring – Corrosion-resistant and engineered for consistent spring tension over time.
• Celcon Poppet – Durable thermoplastic component that ensures responsive, leak-free sealing.
• EPDM Soft Seat – Provides superior sealing to prevent reverse flow under varying pressure conditions.
• 300 PSI Pressure Rating – Suitable for high-pressure applications across gas, oil, and water lines.

Technical Specifications

• Valve Size: 3/8 inch nominal
• Body Length: 1.88 inches
• Material: Lead-free brass body, EPDM gasket, stainless steel spring
• Flow Orientation: Horizontal or vertical (with upward flow)
• Pressure Rating: 300 psi
• Origin: Imported
• Warranty: Limited Lifetime

Installation Considerations

Install this valve with flow in the direction indicated by the body marking. Proper threading and use of approved sealants are required to ensure a secure and leak-free fit. This valve is intended for inline installation and can be oriented vertically or horizontally based on system design.

While installation is mechanically simple, we recommend that this component be installed by a licensed plumber, HVAC technician, or mechanical contractor to ensure code compliance and optimal performance—especially in systems subject to pressure fluctuations or thermal cycling.

Professional Use Cases

From water heaters and hydronic systems to pump discharge lines and fuel oil setups, this valve offers efficient backflow protection without the bulk of a swing-check valve. Its compact form factor and low cracking pressure make it especially useful in confined or variable-pressure installations.

Product Highlights

• One-Way Flow Control – Prevents system contamination and pump damage from reverse flow.
• NSF/ANSI Compliant – Safe for use in potable water applications.
• Soft Seat Design – Reduces vibration and noise while improving seal reliability.
• Versatile Application – Compatible with water, gas, and fuel oil systems.

Engineered for Jobsite Reliability

The 3/8" Brass Spring Check Valve is a trusted choice for professionals who need compact, corrosion-resistant components that meet pressure and safety standards. With long-term reliability and proven construction, this valve is designed to perform under demanding conditions without compromise.