40-50-510 - Smith Series 40 Heavy-Duty Propane Regulator, CGA 510, 0-50 PSIG

Heavy-Duty Reliability for Industrial Gas Control

The Smith Series 40 Heavy-Duty LP Regulator (40-50-510) is engineered to withstand the harshest industrial environments while delivering precise gas control. Designed for professionals who demand longevity and safety, this single-stage regulator is compatible with Propane (LP), Propylene, and Natural Gas. At the heart of its design is Smith's exclusive Sure Seat™ filtered seat technology. This innovative feature utilizes a super-fine 15-micron nickel-plated bronze filter to encapsulate the high-pressure seat, protecting it from the number one cause of regulator failure: debris contamination. By preventing external particles from entering the seating area, the Series 40 ensures a dramatically extended service life and consistent performance, reducing downtime and maintenance costs for your operation.

Built for versatility, this regulator features a robust stainless steel diaphragm. Unlike standard rubber diaphragms, stainless steel offers superior resistance to corrosion and temperature fluctuations, making this unit suitable for use with liquid (cryogenic) gases. The all-brass construction, paired with a nickel-plated bonnet, stands up to corrosive atmospheres common in heavy manufacturing, shipyards, and construction sites. Operators will appreciate the large, 2.5-inch brass gauges equipped with shatter-resistant polycarbonate lenses, which provide clear and safe pressure readings even in rugged conditions. Whether you are managing manifold gas feeds, heating applications, or heavy equipment manufacturing, the Smith 40-50-510 delivers the durability and precision required for critical tasks.

Safety and ease of use are paramount in the Series 40 design. The regulator includes an external relief valve that automatically protects the unit from damage due to inadvertent high-pressure surges, resetting itself once pressure normalizes. The die-cast "T" bar adjusting screw and Delrin bonnet insert allow for smooth, effortless pressure adjustments, even when the system is under high load. With a delivery pressure range of 0-50 PSIG and a maximum inlet pressure of 400 PSIG, this regulator is a powerhouse solution for a wide array of industrial gas applications.