Farris Engineering 27CA23-120/S4 Safety Pressure Relief Valve 3/4" x 1" 100 PSIG

The Farris Engineering 27CA23-120/S4 is a high-performance safety pressure relief valve designed for overpressure protection in industrial piping systems, vessels, and equipment. Part of the Series 2700 line, this valve features a balanced bellows design that ensures reliable operation in backpressure applications, making it ideal for chemical processing, oil and gas, petrochemical, and power generation industries. It offers precise set pressure control at 100 PSIG, with quick opening and reseating to minimize product loss and downtime. Key advantages include corrosion-resistant materials (e.g., stainless steel wetted parts), compliance with ASME Section VIII standards, and a compact footprint for easy installation. Benefits include enhanced safety, reduced maintenance due to its robust construction, and versatility in handling gases, vapors, and liquids. Drawbacks may include higher initial cost compared to basic spring-loaded valves and the need for periodic testing to maintain certification. Compared to similar products like those from Crosby or Consolidated, the Farris model excels in high-cycle applications with superior bellows sealing, though it may require specialized tools for adjustment. This unit appears used, with visible wear, but remains functional for secondary markets or refurbishment.