a Seal & Design Inc. Company
COMMERCIAL HVAC HOSE SOLUTIONS
HVAC Hose Kits for Commercial HVAC Equipment
ChamFlex® hose kits are designed and manufactured for water source heat pumps, fan coils, VAV boxes, chilled beams, and other hydronic terminal units.
Class A Fire-Rated
ASTM E84 / UL 723
UL 94 V-0
Tube compound
MADE IN THE USA
Domestic manufacturing
BAA Compliant
Buy American Act
Standard + Custom
Hose lengths
Documents Ready
Submittals + instructions
Start with the Equipment
Hose Kits for the HVAC Equipment on Your Schedule
ChamFlex connection packages are designed around commercial hydronic terminal equipment. Select the application, line size, hose length, balancing method, and valve configuration required by the project.
Heat Pumps
ChamFlex connection packages are engineered for commercial HVAC equipment, including hydronic terminal units. Select the application, line size, hose length, balancing method, and valve configuration to fit your project.
Fan Coils
Simplify hot- and chilled-water fan coil connections with hookup options supporting isolation, straining, balancing, and commissioning.
VAV Boxes
Use flexible hose kits and push-to-connect assemblies in tight ceiling spaces where conventional field piping adds time and complexity.
Chilled Beams
Reduce field assembly around chilled beam coils with compact flexible hose and push-to-connect options for approved tube connections.
Where is ChamFlex® Used?
Chilled Beams
Radiant Panels
Fan Coils
VAV Boxes
Water Heat Pumps
Unit Ventilators
Air Handling Units
Valence Units
Select the control strategy
Choose an HVAC Hose Kit by Balancing Method
Compare the available methods, then review product-specific sizes, flow ranges, drawings, submittals, and installation instructions.
Pressure-Compensating
Automatic Balance Hose Kits
Maintain design flow as differential pressure changes. Choose the a fixed-flow cartridge or an externally adjustable automatic flow setting.
Explore Fan Coil Connections
Field-Set and Verified
Manual Circuit Setter Hose Kits
Set, measure, and verify circuit flow with variable-Cv balancing, shutoff capability, and pressure/temperature test ports.
View Model MC Circuit Setter Kits
Integrated Control
PIVC Hose Kits
Combine pressure-independent flow regulation, an adjustable flow limit,
and modulating control in a single package.
View PIVC Hose Kits
Simplified Manual Options
Venturi and Ball Valve Hose Kits
Use a fixed-Cv venturi configuration or ball-valve package when the project calls for simpler manual balancing or isolation.
View Manual Balance Hose Kits
Technical Resources
Submittals, Installation Instructions, and Product Data
Find the documentation needed to approve, install, and commission the connection—organized by product family and ready for the next step in your workflow.
Approval
Product Submittals
Review configurations, dimensions, materials, operating limits, and ordering details.
Installation
Installation Instructions
Confirm orientation, tightening, bend radius, routing, commissioning, and installation requirements.
Selection
Product Catalog
Compare hose assemblies, hose kits, valves, strainers, unions, actuators, and accessories.
Individual Connection Solutions
Stainless Steel Braided Hose Assemblies for Commercial HVAC
Use individual ChamFlex hose assemblies when the project does not require a complete valve package.
Standard Braided Hose
Class A fire-rated construction, all-metal JIC flare connections, multiple end configurations, and standard or custom lengths.
All-Metal Hose
Corrugated stainless steel inner hose with stainless steel braid for larger connection sizes and higher-temperature service.
Push-to-Connect
Connect to approved tube without adding and soldering a separate threaded adapter.
Quick Connect System
Replace time-consuming pipe-thread connections with a repeatable, serviceable all-metal JIC-based system.
Purpose-Built For Commercial HVAC
Built to Reduce Installation Risk and Field Labor
ChamFlex hose assemblies are designed around commercial HVAC water and glycol systems—not general-purpose plumbing.
Fire-Rated Construction
Applicable assemblies are tested to ASTM E84/UL 723 and carry a Class A fire rating.
Flexibility + Kink Resistance
Bonded tube-and-braid construction improves flexibility and helps resist kinking.
Serviceable Metal Connections
Washerless 37-degree JIC flare connections create a resealable metal-to-metal seal.
Installation-Ready Fittings
Male pipe-thread fittings are available with thread sealant already applied.
Project-Specific Lengths
Standard and custom lengths help fit the equipment and available installation space.
U.S. Manufacturing
Domestic production supports quality, schedule, and sourcing requirements.
Purpose-Built For Commercial HVAC
Connection Systems Built Into Your Equipment
ChamFlex works with HVAC OEMs to develop repeatable water-connection configurations for production and field installation. The Quick Connect System reduces assembly steps while preserving a serviceable field connection.
Frequently Asked Questions
Technical Answers Before You Specify
What is included in a water source heat pump hose kit?
A typical WSHP hose kit includes flexible supply and return hoses plus the isolation and flow-control components required by the selected configuration. Exact components vary by model and project requirements.
How do I choose between automatic and manual balancing?
Automatic balancing is generally used when design flow must remain stable as differential pressure changes. A manual circuit setter or venturi option is used when the system will be balanced and verified in the field. The engineer’s design flow, available differential pressure, control sequence, and commissioning plan should govern the final selection.
Which hose kit should I use for a water source heat pump?
Start with the unit connection size, required design flow, hose length, balancing method, and supply-side valve or strainer requirements. ChamFlex offers automatic, adjustable automatic, circuit setter, venturi, PICV, and ball-valve configurations for commercial hydronic applications.
Are ChamFlex hose assemblies fire rated?
Applicable standard ChamFlex hose assemblies have been tested to ASTM E84/UL 723 and carry a Class A fire rating. The standard hose tube compound also carries a UL 94 V-0 rating. Confirm the ratings for the exact assembly on its product submittal.
Are custom hose lengths available?
Yes. Standard lengths are available for common HVAC installations, and custom lengths can be produced within the limits shown on the applicable product submittal.
What media are ChamFlex hoses intended for?
ChamFlex product pages identify water and glycol as suitable media and state that the assemblies are not rated for potable-water service. Always verify media, temperature, pressure, and chemical compatibility for the exact product before specification.
Move the Project Forward
Ready to Specify the Connection?
Send the terminal-unit type, line size, design flow, hose length, balancing method, connection requirements, and project quantity. ChamFlex will help identify the configuration and provide the supporting documentation.
Prefer to talk through the application? Call (585) 427-7780.
Learn More About ChamFlex®
Watch our instructional and overview videos
Making Your Products Better With Seals, Gaskets, And Beyond.
Seal & Design is a world-class manufacturing and distribution company with three division across the United States and Canada.
Our mission is to provide the highest quality products, the best technical support, reliable on-time delivery, and superior customer service, at competitive prices. We supply to the Automotive, Medical, Military, Aerospace, Electronics, Power Generation, Hydraulics, and many other commercial industries.
