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Fiorentini 31154-5BP 1-1/2" Balanced Valve 7.5" Diaphragm Full Lockup Internal Sensing 1/2" Vent

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Special Price $466.77 Regular Price $518.11
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SKU
31154-5BP
The Fiorentini 31154-5BP Balanced Valve is a pressure regulator component used to control the flow of the gas and keep the downstream pressure steady in HVAC systems. It operates the pressure and adjusts the position of the internal valve as fuel passes through the 1-1/2" NPT connection with pressure balanced by the 1/2" vent while the furnace and boiler operate on the gas supply lines. It is installed in the gas piping system, whereby the inlet and outlet are orientated toward the supply line. Diaphragm movement to counteract pressure assists in maintaining the stability of gas delivery.
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HVAC Controls & Electrical, Valves
Manufacturer:
https://www.partshnc.com/media/catalog/product/3/1/31154-5bp_fiorentini_partshnc.jpg
Manufacturer Name: Fiorentini
Product Number: 31154-5BP
OEM Part Number: 31154-5BP
Product Description: 31154 1-1/2" Balanced Valve 7.5" Diaphragm Full Lockup Internal Sensing 1/2" Ven
Weight:11lbs/4989.51g

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Product Questions (2)
Customer Questions
What maintenance is required for the Fiorentini 31154-5BP Balanced Valve?

Inspect the valve periodically for leaks, corrosion, or diaphragm wear. Ensure all connections are secure and the vent remains unobstructed. Clean external surfaces to prevent debris buildup. Verify proper pressure regulation and test performance during routine servicing to maintain safe and efficient gas flow control.

What are common issues with the Fiorentini 31154-5BP Balanced Valve?

  • Gas leakage at fittings or seals.
  • Improper lockup causing pressure instability.
  • Blocked or restricted venting.
  • Inconsistent downstream gas pressure.

Installation Steps

Step 1: Turn off gas/air supply and relieve system pressure completely.

Step 2: Verify pipe size compatibility and clean all connections.

Step 3: Position valve according to flow direction marking.

Step 4: Securely connect inlet/outlet using proper fittings and sealant.

Step 5: Attach vent line as specified, ensuring no blockage.

Step 6: Tighten all joints and check for leaks.

Step 7: Restore supply slowly and test the operation.