Key Benefits and Advantages
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Low Differential Performance: The EZL Series is uniquely capable of maintaining accurate control at pressure differentials as low as 2.9 psid (0.2 bar d). This makes it ideal for systems where the available inlet pressure is only slightly higher than the required outlet pressure.
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Bubble-Tight Shutoff: Featuring a precision knife-edged metal plug and a high-quality soft seat, the EZL provides a bubble-tight seal. This is a critical requirement for dead-end systems where any leakage during zero-flow periods could lead to dangerous downstream pressure buildup.
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Zero Atmospheric Bleed: To prevent gas waste and environmental impact, the EZL utilizes a pilot system that bleeds 100% of the loading gas into the downstream piping. There is absolutely no bleed to the atmosphere during normal operation.
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Easy In-Line Maintenance: The top-entry design allows maintenance personnel to inspect, clean, or replace all internal trim parts without removing the valve body from the pipeline. This significantly reduces labor costs and system downtime.
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Precise Pressure Control: The pilot-operated mechanism ensures that downstream pressure remains stable and accurate, regardless of significant fluctuations in inlet pressure or sudden changes in gas demand.
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Equal Inlet and Outlet Pressure Ratings: With a full pressure rating of 290 psig (20 bar) on both the inlet and outlet sides, the EZL simplifies system design and eliminates the need for specialized startup or shutdown procedures typically required for regulators with lower outlet ratings.
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Visual Travel Indicator: Every EZL comes equipped with a visual travel indicator. This feature simplifies in-service inspections and allows for rapid troubleshooting by showing the actual position of the main valve plug.
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Optional Integral Slam-Shut: The Type EZLOSX configuration includes an integral slam-shut device. This safety feature automatically interrupts the gas flow in the event of an overpressure or underpressure condition, providing an extra layer of protection for downstream assets.
Technical Properties
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Operation: Pilot-operated and pressure-balanced.
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Maximum Operating Pressure: 290 psig / 20 bar.
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Minimum Differential: 2.9 psid / 0.2 bar d.
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Body Sizes: Available in standard sizes for municipal and industrial headers, including NPS 2, 3, and 4 (DN 50, 80, and 100).
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End Connections: Available in flanged configurations to meet global piping standards.
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Main Valve Seat: Soft seat for positive shutoff.
Field of Application
The EZL Series is a specialized tool for gas utilities and industrial energy managers who require precision in low-pressure networks.
Primary Industries and Uses:
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District Regulating Stations: Providing the primary pressure reduction for municipal natural gas grids.
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Commercial Meter Sets: Managing gas delivery for large shopping centers, hospitals, and campus environments.
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Industrial Burner Systems: Ensuring stable fuel pressure for high-efficiency furnaces and boilers.
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Low-Pressure Gas Headers: Ideal for systems where the pressure drop across the regulator must be kept to an absolute minimum.
