Looking for reliable gas valve replacements for your commercial or residential deep fryer? This guide highlights five top options, focusing on compatibility, performance, and practical use. Each product is suitable for different fryer setups, from intermittent pilot systems to direct spark and hot surface applications. Read on to find which valve best fits your fryer model, installation needs, and gas type. A quick buyer’s table follows to compare essentials at a glance.
| Product | Best For | Key Benefit |
|---|---|---|
| Vaticas 700-506 | Intermittent pilot or direct spark fryers | High flow up to 720,000 BTU and compact design |
| Prysm 700-506 compatible | Multiple HVAC systems and fryers requiring versatile gas types | Broad gas compatibility and robust regulation |
| gohantee 700-506 | Millivolt valve replacements | Millivolt compatibility with 3/4″ NPT connections |
| Hicello 700-506 | Replacement parts for 700 series | Includes compatible adapters and durable construction |
| DEEKOOL 700-506 | Compact, low-profile installation | Inlet screen and standard terminals for easy setup |
Vaticas 700-506 Gas Valve for Robertshaw 700 Series

Best for: Fryers and heating appliances needing a compact, high-flow valve. This model supports natural, manufactured, mixed, LPG, and LPG/air mixtures, making it versatile for many fryer setups. It integrates a manual valve, pilot valve, and main air pressure regulator, with a flow capability up to 720,000 BTU. Suitable for intermittent pilot, direct spark, and hot surface applications.
Why selected: It combines wide fuel compatibility with a compact form, helping installers fit into tight fryer enclosures while maintaining strong regulation. The design targets both residential and commercial premises where a dedicated valve must handle various gas types.
Caution: Verify that your fryer’s inlet and outlet fittings match the 3/4″ NPT or specified connections to avoid installation issues. Data indicates strong performance, but ensure BTU needs align with your fryer’s rating.
Prysm Robertshaw 700-506 HVAC Gas Valve (LENNOX compatibility)

Best for: Fryers integrated with LENNOX and other HVAC systems seeking a broad compatibility valve. This valve is designed to support pressure regulation at 3.5″ WC for natural gas and handles up to 300,000 BTU, with an inlet size of 3/4″ and electrical terminals for straightforward wiring.
Why selected: The valve’s wide compatibility with various HVAC brands makes it a practical choice for multi-equipment kitchens or facilities with diverse heaters. It supports multiple gas types and remains reliable across different system configurations.
Caution: Ensure the electrical rating and terminal setup match your fryer’s control system. Some installations require additional adapters or conversion fittings depending on mounting orientation.
Robertshaw Gas Valve, Natural Gas, 700-506

Best for: Conventional natural gas fryers with standing pilot configurations. This model is a standard 700-506 valve and is described as a component commonly used in natural gas setups and traditional standing pilot systems.
Why selected: It represents a straightforward, widely-compatible option for older fryer models that rely on standard 700-506 configurations. Its lineage with Robertshaw parts supports easier sourcing of compatible components.
Caution: Availability of manufacturer-specific specs may vary; confirm that your fryer’s pilot and gas type align with this valve’s capabilities before purchase.
gohantee 700-506 Gas Valve for 700 Series

Best for: Millivolt valve replacements in combined fryer systems requiring 3/4″ NPT connections. It supports natural gas and a range of gas types, with compatibility that covers several Robertshaw 700-series valves for intermittent pilot, direct spark, and hot surface applications.
Why selected: Its compatibility with multiple 700-series models and its documented NPT sizing make it a versatile option for technicians performing valve swaps without changing piping. It helps maintain consistent control performance in tight spaces.
Caution: Some listings emphasize compatibility with many models; verify your precise valve model and threading to avoid mismatches during installation.
Hicello 700-506 Millivolt Gas Valve

Best for: Replacements in 700-series systems for furnaces, water heaters, and commercial fryers needing millivolt operation. The valve supports 3/4″ NPT threads and emphasizes compatibility with a broad set of Robertshaw 700-series valves.
Why selected: It provides a cost-effective option for upgrading older fryers while preserving existing wiring and pilot arrangements. It is positioned as a reliable, durable replacement for millivolt configurations.
Caution: The listing highlights compatibility with several Robertshaw models; check exact model numbers and pilot configurations to ensure proper fit and operation.
DEEKOOL 700-506 Gas Valve for Natural Gas

Best for: Small-form, high-flow valves suitable for compact fryer installations requiring a 700-506 configuration. It includes an inlet filtered screen, a pilot outlet 1/4″ tubing, and standard NEMA terminals, with added adapters for pipe installation ease.
Why selected: The valve’s compact size combined with full feature set makes it a practical option for tight fryer enclosures where airflow and regulation are crucial for safe operation.
Caution: Some listings warn to confirm that the BTU rating is within 5% of the original. Verify your fryer’s BTU requirements before choosing this model.
Buying Guide
What to check when choosing a fryer gas valve
- Gas type compatibility: Ensure the valve supports natural, manufactured, mixed, LPG, or LP/air mixtures as used by your fryer.
- BTU rating and capacity: Match the valve’s BTU capacity (e.g., 200,000–720,000 BTU) to your fryer’s load needs to avoid under- or over-regulation.
- Valve type and control: Millivolt, intermittent pilot, direct spark, or hot surface control must align with your fryer’s ignition system.
- Connections and sizing: Verify inlet/outlet sizes (commonly 3/4″ NPT) and ensure compatibility with existing piping and adapters.
- Electrical terminals: Check terminal compatibility and mounting to fit your control board or wiring harness.
Quick tips for installation and safety
- Turn off gas supply and power before starting work. Verify there are no leaks after installation with a safe method.
- Keep a note of pilot gas lines, valve orientation, and reference pilot/dial positions during replacement.
- When in doubt, consult a qualified technician to ensure proper alignment with your fryer’s safety standards.
FAQ
- What is a 700-506 gas valve used for? It’s a millivolt/combined control valve used in intermittent pilot, direct spark, and hot surface applications for various gas types, including those used by fryers.
- Do I need a matching model number for replacement? Yes, matching model numbers (or compatible equivalents) helps ensure proper fit and performance.
- Can these valves be used in both residential and commercial fryers? Many are designed for both environments, but verify BTU rating and installation requirements for your setup.
- Is a millivolt valve compatible with all fryers? Not all fryers use millivolt valves; confirm ignition type and gas control with your fryer’s manual.
- What safety considerations are there? Follow proper shutdown procedures, check for leaks, and ensure venting and clearance requirements meet local codes.
- How do I know which valve to choose? Consider gas type, BTU needs, ignition system, and connection size; a match with your fryer’s existing hardware yields best results.