

Spring-Loaded Pressure / Vacuum Relief Valve - Atmospheric Venting MODEL 12E-TSW
Description
The spring-loaded design of the Groth Model 12E-TSW was created to exceed industry needs. Extensive research and development have produced a product that achieves superior sealing performance and industry-leading flow rates, while also allowing customers to achieve the required flow with a potentially smaller valve. The pressure/vacuum relief valve is designed to protect your tank from damage caused by overpressure or excessive vacuum. Product evaporation losses due to normal tank breathing are greatly reduced. The Model 12E-TSW is a top-sealing valve developed to minimize fugitive emissions, while providing greater protection and safety for tank equipment and on-site personnel.
Technical Details
• Sizes: 2” (DN 50) to 12” (DN 300)
• Pressure settings: 1 psig to 15 psig
• Vacuum settings: 0.464 osig (2 mbarg) to 24 osig
• Material: Aluminum, Carbon Steel, Stainless Steel, special materials available upon request
Features
• Modular construction
• Air-cushioned seat
• High-performance fluoropolymer diaphragms
• Self-draining housing body and drip rings
• Peripheral guide and central stabilization system for alignment
• PED and ATEX certification
Options
• Buna-N, FKM
• Steam-jacketed valve
