
700-503 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $65.00 | Condition is New, Robertshaw 7000BMV 700-503 Combination Gas Valve Central Furnace Natural/LP, shipping cost = $11.25 | 0.0% |
![]() | $95.49 | Condition is New, Gas Valve 7000BMVR for Keating 023625 / Robertshaw 700-503 MilliVolt, FREE SHIPPING | ![]() |
![]() | $95.99 | Condition is New, Gas Valve 7000BMVR for Keating 023625 / Robertshaw 700-503 MilliVolt, FREE SHIPPING | 98.8% |
![]() | $95.99 | Condition is New, Gas Valve 7000BMVR for Keating 023625 / Robertshaw 700-503 MilliVolt, FREE SHIPPING | ![]() |
![]() | $95.99 | Top Pick! Condition is New, Gas Valve 7000BMVR for Keating 023625 / Robertshaw 700-503 MilliVolt, FREE SHIPPING | ![]() |
![]() | $179.00 | Condition is New, OEM Robertshaw Millivolt Gas Valve Replaces 700-50E 7000BMV-343-705-401, FREE SHIPPING | 99.9% |
![]() | $189.99 | Condition is New, Robertshaw 700-503 Combination Gas Valve, FREE SHIPPING | 99.8% |
![]() | $237.32 | Condition is New, ROBERTSHAW MILLIVOLT GAS VALVE, 250 TO 750 MILLIVOLTS Robertshaw -- wall thermo, FREE SHIPPING | 98.5% |
![]() | $241.38 | Condition is New, Robertshaw 700-503 1/2x3/4 NonReg MV SideTap 700-503, FREE SHIPPING | ![]() |
![]() | $241.95 | Condition is New, OEM Robertshaw Millivolt Gas Valve Replaces 700-50E 7000BMV-343-705-401, FREE SHIPPING | ![]() |
![]() | $245.67 | Condition is New, Robertshaw 700-503 Millivolt Gas Valve 250 To 750 Millivolts, FREE SHIPPING | 98.6% |
![]() | $255.71 | Condition is New, Robertshaw 700-503 1/2"x3/4" NonReg MV SideTap, FREE SHIPPING | 99.7% |
![]() | $257.05 | Condition is New, 1 PC Robertshaw '700-503 Combination Gas Valve, shipping cost = $2.99 | 99.8% |
![]() | $387.53 | Condition is New, Robertshaw 700-503 250 to 750 Millivolt Gas Valve, shipping cost = $10.27 | 98.6% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $104.99 | Top Pick! Condition is New – Open box, New MCAMPAS WE700 SMT-WK005 Millivolt Gas Valve -Fits Robertshaw 700-506 700-503, shipping cost = $7.77 | 100.0% |
![]() | $164.55 | Top Pick! Condition is New – Open box, Robertshaw 700-503 700BMV 250 To 750 Millivolt Combination Gas Valve 1/2-3/4", FREE SHIPPING | 99.6% |

The Robertshaw 700-503 250/750 Millivolt Combination Gas Valve, also known as the 700BMV 1/2-3/4, is a versatile and reliable gas valve solution designed for various appliance applications. This valve is suitable for use with both natural and propane gases, making it a practical choice for homes and businesses that utilize multiple fuel sources.
The 700-503 is a combination gas valve, which means it offers both pilot and main gas control in a single unit. The pilot control ensures a stable pilot flame for proper ignition, while the main control manages the larger gas supply for efficient and safe appliance operation. This design simplifies installation and reduces the need for additional components.
This valve operates on a 250 millivolt pilot input and a 750 millivolt main input voltage. The pilot input is designed for a 12V AC or DC power source, while the main input can be 120V AC or 240V AC. The combination of these voltage capabilities allows for flexibility in installation configurations.
The 700-503 250/750 Millivolt Combination Gas Valve is constructed using high-quality materials, ensuring durability and longevity. It features a brass body, which is resistant to corrosion, and a ceramic disc pilot valve, which delivers precise control and long-lasting performance. The valve also includes a built-in thermocouple, which monitors the pilot flame temperature to ensure safe and efficient operation.
This combination gas valve is designed to meet the ANSI/UL 165 and ANSI Z21.48 safety standards. The valve's design includes a safety feature that prevents the main gas supply from flowing if the pilot flame goes out, ensuring the safety of the user and the appliance.
The 700BMV 1/2-3/4 size designation refers to the valve's connection size, which is 1/2 inch for the pilot connection and 3/4 inch for the main gas connection. This size is commonly used in various appliance applications, including water heaters, furnaces, and boilers.
In summary, the Robertshaw 700-503 250/750 Millivolt Combination Gas Valve is a versatile, reliable, and safe gas valve solution suitable for various appliance applications using natural or propane gases. Its combination pilot and main control, flexible voltage capabilities, and robust construction make it a practical choice for homes and businesses seeking efficient and effective gas valve solutions.
Pros and Cons of buying a Robertshaw 700-503 250/750 Millivolt Combination Gas Valve (700BMV 1/2-3/4)
I. IntroductionThe Robertshaw 700-503 250/750 Millivolt Combination Gas Valve (700BMV 1/2-3/4) is a popular choice for those seeking a reliable and versatile gas valve for their appliances. In this analysis, we will discuss the key advantages and disadvantages of purchasing this valve.
II. ProsA. Versatility: This combination gas valve can be used for both low and high limit applications, making it a practical investment for various appliances.
B. Durability: Robertshaw is a well-known brand, and their products, including this gas valve, are renowned for their robustness and longevity.
C. Easy Installation: The 700BMV 1/2-3/4 valve features a simple installation process, saving time and effort.
D. Temperature Control: The 250/750 millivolt rating allows for precise temperature control, ensuring optimal performance of the appliance.
III. ConsA. Limited Compatibility: This valve may not be suitable for all appliances, and it is essential to ensure compatibility with the specific appliance before making a purchase.
B. Potential Leakage: As with any gas valve, there is a risk of leakage if not installed correctly or if the seal becomes damaged over time.
C. Higher Price Point: Compared to some other gas valves in the market, the Robertshaw 700-503 250/750 Millivolt Combination Gas Valve (700BMV 1/2-3/4) may carry a higher price tag.
IV. ConclusionThe Robertshaw 700-503 250/750 Millivolt Combination Gas Valve (700BMV 1/2-3/4) offers several advantages, including versatility, durability, easy installation, and precise temperature control. However, it may come with limited compatibility, potential leakage, and a higher price point. Ultimately, the decision to purchase this gas valve depends on the specific requirements and budget of the appliance owner.
V. RecommendationIf you are looking for a reliable and versatile gas valve that can be used for various applications and offers precise temperature control, the Robertshaw 700-503 250/750 Millivolt Combination Gas Valve (700BMV 1/2-3/4) could be an excellent investment. However, be sure to confirm compatibility with your appliance and consider the higher price point before making a purchase.
Details:
Robertshaw 700-503 250 to 750 millivolt combination gas valve 700BMV 1/2-3/4.: unused in the original box. With a reliable brand like Robertshaw,this gas valve ensures efficient and safe operation of the hvac system it is installed in. The Robertshaw 700-503 gas valve is a 250to 750 millivolt combination gas valve designed for hvac units.
No shipping outside of the 48 states. No APO, FPO, dpi, or us territories and protectorates. Shipping is free. This unit incompatible with the 7000BMV 700-503 model and is suitable for use in units requiring a 1/2-3/4 gas valve.
specifications maxohvac:
- brand: Robertshaw
- mpn: 700-503
- model: 7000bmv
- type: Gas Valve
- unit type: Unit
- upc: 662013632830
shipping maxohvac:
- type: calculated
- class: expedited
- carrier: usps
- transit: 4-9 days
- service: usps priority mail
seller maxohvac:
- city: saginaw, michigan
- rating: 99.4%
- # reviews: 742
payments maxohvac:
- wallet: google-pay
- credit card: mastercard
- other
returns maxohvac:
- method: money back
- paid by: buyer
- time: 30 days
- policy: returns accepted
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- best offers: true
- options: ship-to-home
- availability: in stock
- started: april 12, 2025
- prices: $65.00–$387.53
- item condition:
- New
- New – Open box
- in stock #: 5
- sold #: 19
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