Crosby

The Crosby brand was established more than 140 year ago. Throughout its long history, it has maintained its leadership in overpressure protection. Its direct spring-operated safety and pressure-relief valves are among the world’s most widely used for oil and gas production and refining, petrochemical and chemical processing, as well as conventional and nuclear power. It maintains the industry’s most extensive high-flow facilities for valve testing in air, steam, and water.


Download Now: Pentair Pressure Relief Valve Engineering Handbook
This guide for Pentair-manufactured pressure-relief devices provides reference data and technical recommendations based on 125 years of pioneering research, development, design, manufacture, and application of pressure-relief valves. It covers the terminology, standards, codes, basic design, sizing, and selection for these devices in an easy-to-use format. Download the manual


Pressure Relief Valves

ModelStyleType
JB and JPV-A Large Orifice Pressure Relief ValveDirect Spring Process Valves
Model JB/JPV-ADirect Spring Process ValvesThermal/Threaded Valves
Model JQDirect Spring Process Valves
Model PVRDirect Spring Process Valves
Series 800 Direct Spring Operated Pressure Relief ValvesDirect Spring Process Valves
Series 900 OMNI-TRIM® Direct Spring Operated Pressure Relief ValvesDirect Spring Process Valves
Series BP OMNI-TRIM® Balanced Threaded Pressure Relief ValveDirect Spring Process Valves
Series JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E Spring LoadedDirect Spring Process ValvesAPI 526 Flanged Valves
Style HSL – Drum and Superheater Outlet ServiceSteam Safety ValvesDirect Spring Valves
Styles HE ISOFLEX®, HCI ISOFLEX®, HSJ Safety ValvesSteam Safety ValvesDirect Spring Valves