Boiler Header Module Pro Hydronic Package

The Watts Regulator 0235098 HP-30PRO-P100 Boiler Trim-Out Package provides a complete, pre-assembled solution for efficient and reliable hydronic boiler system installations.

This factory-packaged assembly combines the essential components required for a high-performance closed-loop hydronic heating system. The HP-30PRO-P100 includes a boiler header module, expansion tank, and fill valve assembly—engineered for compatibility, simplified installation, and long-term system protection.

• Model number 0235098 designates the Watts HP-30PRO-P100 Boiler Trim-Out Package containing key hydronic system components.
• The package includes a HP-BHM Boiler Header Module, ETX-30 Expansion Tank, and B911S-M3 Fill Valve Assembly.
• Designed for use in residential and light commercial hydronic boiler systems to regulate pressure, manage expansion, and maintain system balance.
• Factory-matched components ensure compatibility, reduced installation time, and improved overall system reliability.

Technical Data & Specifications

• Manufacturer: Watts Regulator Company
• Model Number: 0235098
• Product Name: HP-30PRO-P100 Boiler Trim-Out Package
• Product Type: Pre-assembled Hydronic Boiler Trim Package
• Included Components:
• HP-BHM Boiler Header Module – Provides connection points for air elimination, fill, and expansion system interfaces.
• ETX-30 Expansion Tank – 4.4-gallon diaphragm-style tank for pressure stabilization and thermal expansion control.
• B911S-M3 Fill Valve Assembly – Combination pressure reducing valve and backflow preventer for controlled boiler filling.
• System Type: Closed-loop hydronic heating
• Connection Type: NPT threaded connections (standard hydronic fittings)
• Working Pressure: Typically up to 100 psi (system dependent)
• Temperature Range: Suitable for system temperatures up to 240°F (115°C)
• Material: Brass, steel, and composite components depending on assembly element
• Mounting Configuration: Wall or near-boiler installation
• Application Compatibility: Designed for use with standard gas or oil-fired boilers and hydronic heating loops
• Air Elimination: Integrated vent and separator within HP-BHM module
• Compliance: Meets ASME Section VIII expansion control and hydronic system design standards
• Certifications: NSF/ANSI 61 certified components where applicable
• Warranty: Watts Limited Warranty against material and manufacturing defects

Features & Benefits

• Complete, pre-assembled hydronic trim package simplifies installation and reduces labor time.
• Includes all essential boiler system components: expansion tank, fill valve, and header module.
• Factory-engineered compatibility ensures balanced operation and reduced system maintenance.
• ETX-30 expansion tank provides long-lasting pressure stabilization for hydronic systems.
• B911S-M3 fill valve assembly offers automatic water makeup and backflow prevention.
• Durable construction materials ensure corrosion resistance and longevity.
• Ideal for residential and light commercial boiler installations requiring professional-grade reliability.