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Replacing a millivolt gas valve is not a job where you want to choose a part from the model number alone. The 700-506 Gas Valve linked in this review is an aftermarket replacement marketed for Robertshaw 700 Series applications, but several details must match your appliance before installation. Its useful points include 3/4-inch connections and broad replacement positioning, while the biggest concern is a published BTU claim that does not match Robertshaw’s official specification for the genuine 700-506. This review helps you decide where the replacement may fit and which specifications you should verify with a qualified gas technician before buying.
Quick Verdict
Rating: 6.5/10, Recommended with caveats
Best For: Buyers replacing a compatible Robertshaw 700 Series-style millivolt valve after confirming gas type, pressure, capacity, electrical requirements, and connection sizes.
Bottom Line: This aftermarket 700-506 replacement offers useful connection and compatibility features for certain gas appliances. However, the linked listing’s 720,000 BTU/H headline conflicts with Robertshaw’s official 300,000 BTU specification for the genuine 700-506, so professional compatibility verification is essential.
Key Takeaways
- The linked ASIN is marketed as an aftermarket 700-506 replacement rather than a genuine Robertshaw-branded 700-506 valve.
- Robertshaw officially rates its genuine 700-506 at 300,000 BTU, not 720,000 BTU.
- The official Robertshaw 700-506 reference uses a 3/4-inch inlet, 3/4-inch straight-through outlet, 3.5-inch W.C. natural-gas regulation, and a 250-750 mV electrical range.
- The aftermarket listing specifies 3/4-14 NPT female inlet and outlet connections and includes two 3/4-inch by 1/2-inch adapter sleeves.
- Gas type, pressure regulation, BTU capacity, millivolt system, pilot arrangement, and physical connections all need to match the appliance.
- Because an incorrect gas valve can create fire, gas-leak, combustion, or equipment risks, installation and final compatibility checks should be handled by a qualified gas professional.
| Specification | Detail |
|---|---|
| Linked product brand | gohantee |
| Product type | Aftermarket millivolt combination gas valve replacement |
| Replacement reference | 700-506 / Robertshaw 700 Series-style applications |
| Listed connection size | 3/4-14 NPT female inlet and outlet |
| Listed adapters | Two 3/4-inch x 1/2-inch adapter sleeves |
| Official Robertshaw reference model | 700-506, factory part 7000BMVR |
| Official 700-506 capacity | 300,000 BTU |
| Official pressure regulation | 3.5-inch W.C. natural gas |
| Official electrical reference | 250 mV to 750 mV |
| Official maximum inlet pressure | 14-inch W.C. (0.5 PSI) |
| Official pilot outlet | 1/4-inch tubing |
| Installation note | Verify the replacement against the appliance data and have gas-system work performed by a qualified professional. |
What Is the 700-506 Gas Valve?
The product linked here is a gohantee aftermarket gas valve sold as a replacement for Robertshaw 700 Series-style millivolt gas controls. It is not the same thing as purchasing a genuine Robertshaw 700-506 directly from Robertshaw, even though it uses the 700-506 model reference in its compatibility description.
The genuine Robertshaw 700-506 is part of the company’s 700 Series of wall-thermostat-actuated millivolt combination controls. Robertshaw specifies the 700-506 as a millivolt diaphragm/solenoid gas valve with factory part number 7000BMVR, 300,000 BTU capacity, 3/4-inch inlet size, and 3.5-inch W.C. natural-gas regulation.
That distinction matters because replacement gas controls must be selected by more than appearance or a familiar part number. You need the correct fuel configuration, regulator setting, capacity, electrical system, pilot arrangement, inlet and outlet sizes, and appliance application.
Before You Buy: Do not use the linked product’s 720,000 BTU/H headline as proof that it is suitable for an appliance requiring that capacity. Robertshaw lists the genuine 700-506 at 300,000 BTU. Have the required valve capacity and pressure specifications confirmed from your appliance data plate, service documentation, or qualified technician.
Who Should Buy It?
Best For
- You have an appliance that specifically calls for a compatible 700 Series-style millivolt replacement.
- Your technician has confirmed the valve’s fuel, capacity, pressure, pilot, electrical, and connection requirements.
- You need an aftermarket option with 3/4-14 NPT connections and may benefit from the listed 3/4-inch to 1/2-inch adapter sleeves.
Skip If
- You need a guaranteed genuine Robertshaw 700-506 rather than an aftermarket replacement.
- You are choosing a valve only because the listing advertises 720,000 BTU/H.
- Your appliance specifications, fuel configuration, regulator requirements, or millivolt control system have not been confirmed.
Key Features and Buying Factors
Millivolt Control Design
The 700-506 reference belongs to the millivolt gas-control category. Robertshaw specifies its genuine 700-506 for a 250 mV to 750 mV electrical range and identifies it as a millivolt diaphragm/solenoid gas valve.
This makes the electrical control arrangement one of the first details you should compare. A valve that physically fits the pipe is not automatically correct if the appliance uses a different control system. Confirm how your existing pilot safety and thermostat system operates before treating this aftermarket valve as a direct substitute.
Connections and Adapter Sleeves
The aftermarket listing specifies 3/4-14 NPT female inlet and outlet threads. It also lists two 3/4-inch by 1/2-inch adapter sleeves, which may make the replacement easier to adapt to certain existing piping arrangements.
That is useful only when the resulting configuration is approved for your appliance. Pipe size, valve orientation, permitted outlet configuration, sealing method, regulator requirements, and local gas codes still matter. An adapter should never be used simply to force an otherwise incompatible valve into place.
BTU Capacity: The Most Important Specification to Recheck
The biggest issue with this product listing is its 720,000 BTU/H headline. Robertshaw says the complete 700-500 family includes models ranging up to 720,000 BTU, but its official specification for the individual 700-506 is 300,000 BTU.
Those figures should not be treated as interchangeable. The correct gas valve needs enough capacity for the appliance while also meeting the required regulator and inlet-pressure specifications. A higher advertised number does not make a valve safer or more compatible.
Pilot and Terminal Design
Robertshaw’s 700 Series design includes a 1/4-inch pilot outlet, standard NEMA terminals, an inlet filtered screen, and a gas cock dial with Off, Pilot, and On positions. The linked aftermarket listing also promotes standard NEMA-style terminal compatibility.
These familiar features can make a 700 Series-style replacement attractive for service work, but terminal shape alone should not be used as the deciding factor. The thermopile or pilot safety arrangement and the required millivolt characteristics must also match.
Compatibility and Applications
The aftermarket listing markets this valve for multiple Robertshaw 700 Series replacement references and for equipment such as commercial cooking and heating appliances. It also names replacement applications associated with manufacturers including Bakers Pride, Frymaster, Keating, South Bend, Garland, Hobart, and others.
Those cross-reference claims are useful starting points, not automatic approval for every model from those brands. Manufacturers can use different gas valves across appliance generations, fuel versions, burner capacities, and control systems.
The official Robertshaw 700 Series itself is used across cooking and heating applications and is designed for wall-thermostat-actuated millivolt systems. Robertshaw also lists natural, manufactured, mixed, LP, and LP/air gas types across the 700 Series. However, the genuine 700-506 specifically carries a 3.5-inch W.C. natural-gas pressure regulation specification.
Pro Tip: Before ordering, photograph the existing valve label and appliance data plate. Give both to your service technician or parts supplier so they can compare the model, gas type, BTU input, regulator pressure, millivolt requirements, pilot arrangement, and connection sizes.
Compatibility and Safety
A gas valve is a safety-critical control, so installation is different from replacing a simple mechanical fitting. An incorrect valve, regulator setting, gas type, connection, or control arrangement can affect ignition, combustion, shutdown behavior, and gas flow.
Robertshaw specifies a maximum inlet pressure of 14-inch W.C. (0.5 PSI) for the genuine 700-506 reference. Its official natural-gas regulator specification is 3.5-inch W.C. Those values give you important comparison points, but you still need to follow the specifications required by the actual appliance and replacement valve being installed.
Do not attempt to convert fuel type, alter regulator settings, bypass pilot-safety components, or improvise piping because a replacement valve appears physically similar. Gas-control installation, pressure checks, leak testing, combustion checks, and final startup should be completed according to the appliance documentation, applicable codes, and qualified professional guidance.
How It Performs in Real Use
For Commercial Cooking Equipment
The 700 Series replacement format is relevant to older and serviceable fryers, ranges, ovens, and similar equipment that use compatible millivolt controls. The listed 3/4-inch connections and included reducer sleeves may reduce the number of additional sizing components needed in some installations.
The main limitation is that commercial appliances vary widely in burner input. The replacement should be chosen from the equipment specification, not simply because a seller names a familiar fryer or range brand.
For Heating Equipment
Robertshaw describes its 700 Series as suitable across heating applications, including furnace and other thermostat-controlled installations. A 700-506-style replacement can therefore make sense where the original control specifications closely match.
You still need to distinguish between a general 700 Series application and the exact requirements of your appliance. Gas type and regulator pressure are especially important because different models in the same series use different pressure and capacity specifications.
For Replacement and Repair Work
The product is most practical when you already have a known valve reference and a technician is comparing specifications. In that situation, the 700-506 model designation, NPT sizes, adapter sleeves, pilot arrangement, and terminal style provide concrete details for identifying whether it is a workable substitute.
It is less suitable for trial-and-error replacement. A gas valve should not be selected by matching only the mounting space, terminal appearance, or pipe diameter.
For Long-Term Service
Long-term reliability depends on correct application as much as on the valve itself. Correct gas pressure, clean supply conditions, proper pilot operation, suitable ambient conditions, and correct installation all affect performance.
Because this is an aftermarket product, buyers who prioritize manufacturer-backed specifications and exact OEM cross-referencing may prefer a genuine Robertshaw valve or another replacement explicitly approved for the equipment.
Common Mistakes to Avoid
- Buying from the BTU headline alone: The 720,000 BTU/H claim conflicts with the official Robertshaw 700-506 reference capacity of 300,000 BTU.
- Assuming every 700 Series valve is identical: Robertshaw lists different inlet sizes, capacities, regulator settings, and fuel configurations within the series.
- Matching only the threads: Correct NPT size does not confirm electrical, regulator, fuel, pilot, or capacity compatibility.
- Assuming an adapter proves compatibility: Reducer sleeves solve a connection-size issue only. They do not correct an unsuitable valve specification.
- Treating a marketplace cross-reference as OEM approval: Check the appliance documentation or obtain confirmation from a qualified parts professional.
- Installing without professional checks: Gas pressure, leakage, ignition, combustion, and safety shutdown need to be verified correctly.
Pros and Cons
Pros
- Marketed specifically for Robertshaw 700 Series-style replacement applications.
- Listed 3/4-14 NPT female inlet and outlet connections suit common 700-506-style configurations.
- Includes two 3/4-inch x 1/2-inch adapter sleeves according to the product listing.
- Uses a familiar millivolt combination-valve format with NEMA-style terminal compatibility.
- Can be a practical aftermarket option when a technician confirms the full specification match.
Cons
- The 720,000 BTU/H listing claim conflicts with Robertshaw’s official 300,000 BTU specification for the genuine 700-506.
- This is an aftermarket replacement, not a clearly identified genuine Robertshaw 700-506.
- Compatibility requires more than matching the model number or pipe size, so professional verification is strongly advisable.
Is It Worth the Price?
This 700-506 replacement is worth considering when you need an aftermarket valve and have already confirmed that its specifications match the appliance. The included connection adapters and broad replacement positioning can make it convenient compared with sourcing several separate installation components.
The value is much weaker if you are buying only from the listing title. The capacity discrepancy is significant enough that you should confirm the exact application before spending money on the part. Buyers who need documented OEM specifications may get more value from a genuine Robertshaw replacement.
How It Compares to Alternatives
Within Robertshaw’s genuine 700 Series, small model-number changes can represent meaningful specification differences. The official 700-504, for example, is rated at 240,000 BTU with a 1/2-inch inlet, while the 700-508 is also rated at 240,000 BTU with a 1/2-inch inlet. The genuine 700-506 steps up to a 3/4-inch inlet and 300,000 BTU capacity.
Robertshaw also lists the 700-515 as a 485,000 BTU model with 11.0-inch W.C. LP-gas regulation. These examples show why nearby model numbers should not be treated as direct substitutes. Choose the valve that matches the appliance specifications rather than the one with the largest capacity or closest-looking body.
Frequently Asked Questions
Is the 700-506 really rated for 720,000 BTU/H?
The linked aftermarket listing advertises 720,000 BTU/H, but Robertshaw’s official specification for the genuine 700-506 is 300,000 BTU. Robertshaw states that the broader 700-500 series contains models reaching up to 720,000 BTU, which appears to be the source of the higher number. Do not size your appliance from the 720,000 BTU headline without professional confirmation.
Is this a genuine Robertshaw 700-506?
The linked ASIN is identified by retailer listings as a gohantee aftermarket replacement for Robertshaw 700 Series valves. It should therefore be evaluated as a compatible replacement product rather than assumed to be a genuine Robertshaw-manufactured 700-506.
Will it replace any Robertshaw 700 Series gas valve?
No. Robertshaw’s 700 Series includes valves with different capacities, inlet sizes, pressure regulation, and fuel configurations. Match the exact appliance and valve requirements instead of assuming every 700 Series number is interchangeable.
Can this valve be used with natural gas or LP gas?
The aftermarket listing markets broad gas compatibility, but you should not assume one regulator configuration is correct for every fuel. The genuine Robertshaw 700-506 is officially specified with 3.5-inch W.C. natural-gas pressure regulation, while other Robertshaw models use different LP settings. Confirm your exact fuel and regulator requirements before installation.
What should I check before ordering a replacement valve?
Check the existing valve model, appliance input rating, gas type, inlet pressure, regulator requirement, inlet and outlet sizes, pilot arrangement, and control-system voltage or millivolt range. Matching only the 700-506 number or the pipe thread is not enough for a safe replacement.
Should a professional install the 700-506 replacement?
Yes. Gas-valve replacement affects fuel flow, ignition, pressure regulation, and safety shutdown. A qualified gas or appliance technician can verify compatibility, install the valve according to applicable requirements, check for leakage, and confirm safe appliance operation.
What warranty does this gas valve include?
A reliable manufacturer warranty period for the linked aftermarket product was not established from the sources reviewed. Check the current Amazon seller and product information before ordering if warranty coverage is important to your decision.
The Bottom Line
The gohantee 700-506 Gas Valve replacement is worth considering when a qualified professional has confirmed that its connections, fuel setup, pressure requirements, millivolt controls, and capacity suit your appliance. Its main advantages are its familiar 700 Series-style format and included adapters, but the conflicting 720,000 BTU/H claim makes careful specification checking especially important.
If you require a verified genuine Robertshaw 700-506 or cannot confirm the exact appliance requirements, skip the aftermarket shortcut and identify the correct OEM or approved replacement first. That keeps the buying decision focused on compatibility and safe operation rather than model-number similarity.
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