
The Apollo Series 14-400 Commercial Boiler Safety Relief Valve (30 PSI) is a high-capacity safety control engineered to deliver emergency over-pressure protection for commercial and institutional hot water heating boilers. Built to strict ASME Section IV standards, this bronze valve features an expanded outlet design to vent high-volume thermal expansion rapidly, protecting vital mechanical room infrastructure and maintaining structural compliance.
Key Features
- ASME Section IV Certified: Specifically built, rated, and National Board certified for hot water heating boilers to satisfy local municipal and educational safety audits.
- Corrosion-Resistant Internals: Features a premium silicone seat disc and a heavy-duty stainless steel spring to resist high temperatures and ensure positive sealing after cycling.
- High-Discharge Design: Engineered with an extra-large outlet to prevent backpressure build-up during emergency relief cycles.
| Specification Element | Mechanical Metric |
|---|---|
| Set Pressure Rating | 30 PSI |
| Body Material | Bronze (ASTM B584) |
| Connection Type | NPT Male Inlet x NPT Female Outlet |
| Compliance & Approvals | ASME Section IV, National Board Certified, CRN Registered |
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Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.