17-402-03

The Apollo 17-402-03 Pressure Relief Valve is a crucial safety component designed for applications involving pressurized systems. This valve is specifically engineered for 3/4 inch NPT threaded connections, with 3/4 inch NPT outlet. It is rated for a working pressure of 125 psi (pounds per square inch), making it suitable for moderately pressurized systems.

The Apollo 17-402-03 Pressure Relief Valve is built to deliver a thermal relief capacity of 791 BTUs per hour (British Thermal Units per hour). This capacity represents the amount of heat that the valve can safely release per hour before activating, preventing potentially dangerous pressure build-up.

The valve's construction consists of a durable brass body, ensuring longevity and resistance to corrosion. The stem and seat are made of stainless steel, providing additional strength and durability. The valve comes with a factory-installed spring, which provides the initial force required for the valve to operate.

This particular pressure relief valve is designed to automatically open when the system pressure rises above the set pressure, releasing excess pressure and maintaining system safety. The valve's seat is designed to close once the excess pressure is released, ensuring a quick and effective response.

The Apollo 17-402-03 Pressure Relief Valve is an essential component for maintaining the safe and efficient operation of pressurized systems in various industries, including HVAC (Heating, Ventilation, and Air Conditioning), oil and gas, and chemical processing. Its reliable design and robust construction make it a trusted choice for professionals and DIY enthusiasts alike.

1. 3/4 inch NPT threaded connections for easy installation.

2. Rated for a working pressure of 125 psi.

3. Thermal relief capacity of 791 BTUs per hour.

4. Constructed of brass body, stainless steel stem, and seat.

5. Automatically opens and closes to maintain system safety.

6. Suitable for use in various industries, including HVAC, oil and gas, and chemical processing.

The Apollo 17-402-03 pressure relief valve is a commonly used pressure relief valve in heating applications. This specific model is a 3/4 inch inlet and outlet, 125 psi pressure relief valve with a capacity of 791 BTUs per hour. Here are some pros and cons of buying this valve:

1. Reliable Performance: Apollo is a trusted brand in the HVAC industry, and this pressure relief valve is known for its reliable performance.

2. Easy Installation: The valve is relatively easy to install, and it comes with clear instructions and all necessary hardware.

3. Durable Construction: The valve is made of brass, which is a durable material that can withstand high temperatures and pressures.

4. Safety Feature: A pressure relief valve is an essential safety feature in heating systems, and this valve can help prevent damage to the system or injury to homeowners due to pressure buildup.

1. Cost: Compared to some other pressure relief valves, this Apollo model may be more expensive.

2. Limited Capacity: This valve has a relatively low capacity of 791 BTUs per hour, which may not be sufficient for larger heating systems.

3. Requires Regular Maintenance: Like all pressure relief valves, this valve requires regular maintenance to ensure proper function.

In conclusion, the Apollo 17-402-03 pressure relief valve is a reliable and durable option for heating systems. However, it may be more expensive than some other models, and it has a relatively low capacity. Ultimately, the decision to buy this valve depends on the specific needs and budget of the homeowner.

Recommendation: If you have a smaller heating system and are looking for a reliable and durable pressure relief valve from a trusted brand, the Apollo 17-402-03 pressure relief valve may be a good option for you. However, if you have a larger heating system or are on a tight budget, you may want to consider other options with a higher capacity or lower price point.

Details:

3/4 male x female, solid brass, made in USA by canebrake industries. Apollo pressure relief valve is new in original box, never used.

specifications maxohvac:

• brand: Apollo
• mpn: 17-402-03
• model: Rvw17-34125
• type: Pressure Relief Valve
• country of origin: United States
• upc: 670750501142

general maxohvac:

• category: Business & Industrial > Hvac Refrigeration

payments maxohvac:

• credit card: discover
• wallet: google-pay
• other

offer maxohvac:

• prices: $30.00–$204.76
• item condition:
  • New – Open box
  • New
• availability: in stock
• in stock #: 5
• options: ship-to-home
• started: february 28, 2026
• sold #: 11

returns maxohvac:

• policy: no returns

shipping maxohvac:

• carrier: usps
• transit: 5-11 days
• type: fixed
• service: usps ground advantage
• class: standard

seller maxohvac:

• # reviews: 133
• rating: 100.0%
• city: acworth, georgia

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