HCi TY-BFF-Q — 3/4″ FNPT Combination Y-Strainer, Ball Valve and Union (Terminator Y)

Combination Y-Strainer Ball Valve — HCi TY-BFF-Q 3/4″

The HCi TY-BFF-Q is a 3/4″ FNPT combination Y-strainer ball valve that combines a Y-strainer, an isolation ball valve and a union in one brass body. It protects the coil, control valve and heat exchanger of a water source heat pump or fan coil from pipe debris while giving the technician a shutoff and a service union in a single fitting.

Product details

• Part number: TY-BFF-Q
• Brand: HCi (Hydronic Components Inc.), Terminator Y series
• Size: 3/4″ FNPT
• Functions: Y-strainer, isolation ball valve and union

Why use a combination Y-strainer ball valve

Debris from new piping and loop flushing is the most common cause of plugged heat pump coaxial coils and stuck control valves. Installing a combination Y-strainer ball valve on the supply side catches that debris before it reaches the unit, and the integrated ball valve lets the screen be cleaned without draining the riser. One combination fitting also takes less space and fewer threaded joints than three separate parts.

Servicing a water source heat pump? See our valves, fittings, circulator pumps and ClimateMaster control boards.

How to install and service

1. Install on the supply side with the flow arrow toward the unit and the strainer leg pointing down.
2. Connect the union side to the unit or flexible hose.
3. After flushing, close the ball valve, remove the strainer cap and clean the screen.
4. Reinstall the screen, open the valve slowly and check for leaks.

Screen mesh, pressure rating and dimensions are on the HCi (Hydronic Components Inc.) product site.

Frequently asked questions

What does the HCi TY-BFF-Q combine?

A Y-strainer, an isolation ball valve and a union in one 3/4″ FNPT body.

Where is it installed?

On the supply side of a water source heat pump, fan coil or coil, upstream of the control valve.

How often should the screen be cleaned?

After the initial loop flush, then at each maintenance visit or whenever flow drops.

When will my order ship?

Orders are prepared and shipped within 5–7 business days.

Why buy from Cedars HVAC

• Genuine HCi products, new in the box
• Contractor-friendly pricing on hydronic and water source heat pump parts
• Real HVAC expertise. Call (305) 850-6693 to confirm sizing and compatibility before you order.