PEL Gas Valves

Key Benefits & Features of PEL Gas Valves

Here are the core advantages and features of our PEL Gas Valves, combining both the content from your page and standard technical strengths:

• Authentic PEL Quality: We stock genuine PEL valves manufactured by PEL Pintossi (Italy).
• Flame Supervision / Flame Failure Protection: Many valves in our range (e.g., 21S, 22S, 23S) offer FSD / FFD (flame supervision / flame failure), automatically shutting off gas when the pilot flame goes out.
• Orientation Options: Available in horizontal (e.g., Replacement PEL 22S Horizontal) and vertical (e.g., 22S/V) configurations to suit different appliance layouts.
• Comprehensive Parts Range: In addition to control valves, we offer knobs, handles, and replacement magnets for PEL 22S/23S.
• Broad Application: Suited to many types of gas-powered appliances — cookers, griddles, jet burners, and commercial catering systems.
• Regulated Safety: Bought through a UK stockist (Under Control Instruments), ensuring support, fast shipping, and compliance.
• Cost-Effective Maintenance: Replacement PEL valves (like the 22S/O) are relatively inexpensive, aiding cost-efficient servicing.
• Technical Support: Under Control Instruments offer free technical support to help you select the correct PEL gas valve.

How PEL Gas Valves Work

PEL gas valves regulate gas flow and provide critical safety by monitoring the presence of a pilot flame and cutting off the gas if something goes wrong.

These valves use a thermocouple or thermopile device to sense flame presence. When the pilot flame is burning, it heats the thermocouple, which generates a small electrical signal. That signal keeps an internal magnet or coil energized, which in turn holds the valve open, allowing gas to flow to the main burner. If the pilot flame goes out, the thermocouple cools, the electrical signal drops, the magnet de-energizes, and the valve shuts, stopping the gas flow. This process ensures that gas isn’t flowing uncontrolled when no flame is present - a key safety mechanism in catering and commercial gas systems.

• Pilot flame heats thermocouple / thermopile → generates voltage.
• Voltage keeps internal magnet / coil energized → gas valve stays open.
• Flame is extinguished → thermocouple cools → voltage drops.
• Magnet de-energises → valve closes automatically, stopping gas.
• Manual control is possible via the valve knob — turning off the knob closes the valve regardless of flame.
• In safety or thermostatic variants (e.g., PEL 23S), the valve may include additional features (like fine control or a reset requirement) to manage gas flow more precisely or enforce a manual reset.

Ideal Use / Application for PEL Gas Valves

PEL Gas Valves from Under Control are particularly suited for:

• Commercial catering equipment - especially for high-heat appliances like wok cookers, griddles, multi-jet burners, and large fryers.
• Appliance servicing and maintenance - replacing aged or non-compliant valves (e.g., 20S, 21S, 22S/O) during routine checks.
• New gas installations - building or refurbishing gas trains in a kitchen or industrial setup where certified flame-failure valves are required.
• Gas safety retrofits - upgrading older or less-safe valves with modern flame-failure models (e.g., converting to 23S safety valves).
• Custom builds - when you need specific valve configurations (horizontal vs vertical) or additional parts (knobs, magnets, fittings) as part of a bespoke gas system.

Important Considerations & Safety Notes

When selecting or installing PEL Gas Valves, be sure to keep the following in mind:

1. Use a Qualified Engineer: Gas work must be carried out by a competent, Gas-Safe registered engineer - essential for safety and legal compliance.
2. Match the Right Valve Model: Choose the correct PEL model (20S, 21S, 22S, 23S, etc.) depending on your appliance’s requirements, flow, pressure, and orientation.
3. Check Flame Supervision: If your system requires flame-failure protection, verify that the valve supports FSD / FFD.
4. Thermocouple Compatibility: Make sure the thermocouple / pilot connection matches your system (thread size, type) - wrong fit can prevent proper operation.
5. Orientation Matters: Use the correct orientation (horizontal vs vertical) to ensure reliable performance and avoid installation issues.
6. Gas Type: Confirm whether your system is using LPG or natural gas, and verify that the valve is rated accordingly.
7. Regular Testing: Perform routine checks to ensure the flame-failure mechanism operates correctly - test by extinguishing the pilot flame and confirming that gas flow stops.
8. Leak Testing: After installation, always carry out a leak test (e.g., using leak-detection fluid) - don’t use open flame.
9. Spare Parts: Use genuine PEL replacement parts (like 22S magnets or knobs) to preserve functionality and safety.
10. Reset Requirements: Some PEL safety valves require a manual reset after a flame failure - ensure clear access and procedure for proper servicing.

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