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Pressure regulators maintain steady gas, air, or fluid pressure in HVAC systems, ensuring safety, stable performance, and efficiency. Replacing worn or faulty regulators prevents overpressure, system strain, and protects components from damage or failure.
-13%Watts R11-04C 1/2" Pressure Regulator 0-125 PSISpecial Price $92.26 Regular Price $106.10Out of stock
-13%Parker Watts Fluid Air R35-02C 1/4" Pressure Regulator 0-125 PSI Out 300 PSI MAXSpecial Price $71.70 Regular Price $82.45
-13%Parker Watts Fluid Air R364-02CG Pressure Regulator 0-125 PSI 1/4" NPTSpecial Price $96.05 Regular Price $110.46
-10%Maxitrol 210D-1 1" Gas Pressure Regulator 10 PSI Max Inlet 3-8"WC SpringSpecial Price $416.65 Regular Price $462.48
-13%Maxitrol 325-5-1 Line Pressure Regulator 1" NPT 10 PSI-Max 4"-12" WC OutSpecial Price $67.38 Regular Price $77.49
-13%Maxitrol 325-5B-1 1" Gas Pressure Regulator 10 PSI Maximum inlet 4-12" WC ImblueSpecial Price $77.96 Regular Price $89.66- -13%Maxitrol 325-5BL-1 1" Line Pressure Regulator 2 PSI 7-11" WC Out ImblueSpecial Price $78.20 Regular Price $89.93
- -13%Maxitrol 325-5L-1 1" Line Pressure Regulator Certified 2 PSI Piping SystemsSpecial Price $65.62 Regular Price $75.46
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- -10%Xylem-Hoffman Specialty 402445 1" Full Port Pressure Regulator 250 PSI 2100Special Price $3,661.75 Regular Price $4,064.54Out of stock
- -10%Spirax-Sarco 55222 Pressure Regulator 1/2" NPT Series 25Special Price $1,242.72 Regular Price $1,379.42
- -13%Resideo V5306B1009 Natural Gas Pressure Regulator 3.5" WCSpecial Price $94.88 Regular Price $109.12Out of stock
HVAC Pressure Regulators Replacement Parts
Pressure regulators are essential for controlling and stabilizing the flow of gas, air, or refrigerant in HVAC systems. They prevent overpressure, protect system components, and maintain consistent performance across residential and commercial applications.
Common pressure regulator types include gas pressure regulators for safe fuel delivery and air compressor pressure regulators for pneumatic systems. Crankcase pressure regulating valves protect oil-fueled equipment, while refrigerant pressure regulators maintain consistent cooling performance in HVAC systems.
Pressure regulators such as flanged regulators, straight unions, evaporating regulators, and water pressure regulators are designed to suit specific HVAC system layouts. Each type ensures proper pressure control, prevents overpressure, and supports safe, efficient, and reliable operation of heating, cooling, and fluid circulation systems.
Signs of a failing pressure regulator include fluctuating system pressure, unusual noises, improper heating or cooling, and frequent system shutdowns. Timely replacement of worn regulators helps maintain safety, efficiency, and reliable HVAC operation.
PartsHnC offers a wide selection of pressure regulator parts, including gas regulators, refrigerant regulators, crankcase valves, flanged regulators, union fittings, diaphragm kits, and pressure adjustment screws from trusted HVAC brands like Honeywell, Johnson Controls, and Automation Components Inc (ACI), with fast shipping directly to your doorstep.
FAQs
How do I know if an HVAC pressure regulator is failing?
Signs include inconsistent pressure readings, system overpressure, unusual noises, or frequent system shutdowns. Early detection helps prevent damage to HVAC components and ensures safe operation.
Can I replace a gas pressure regulator myself?
Professional installation is recommended to ensure correct pressure calibration and safe fuel delivery. Improper replacement can lead to leaks, system inefficiency, or safety hazards.
How often should a refrigerant pressure regulator be inspected?
Check during annual HVAC maintenance or if cooling performance is inconsistent. Regular inspection ensures proper system operation and prevents unexpected failures.
What is the purpose of a crankcase pressure regulating valve?
It controls oil or fuel system pressure to prevent compressor or burner damage. Maintaining correct pressure protects HVAC equipment and extends component lifespan.
How do I adjust an HVAC pressure regulator?
Use the adjustment screw or knob according to manufacturer instructions, monitoring system pressure carefully. Proper adjustment keeps system pressure within safe and efficient operating ranges.
Can a faulty pressure regulator cause system shutdown?
Yes, a faulty regulator can trigger overpressure or underpressure conditions, causing the HVAC system to shut down. Replacing or repairing a defective regulator restores safe and reliable system operation.