Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Adjustable relief protection for crude oil and hydrocarbon sampling systems
The Welker ESR-2 Relief Valve is designed to protect crude oil, light liquid, hydrocarbon sampling systems, and sample pumps from overpressure events. Built for abrasive and high operating pressure systems, the ESR-2 provides adjustable pressure relief with stainless steel construction, a locking mechanism, soft or hard seal options, repairable poppet, and inline or external relief capability. This durable relief valve helps reduce operating pressure safely, protect critical sampling equipment, and support reliable operation in crude oil and liquid hydrocarbon applications.
Crude Oil and Hydrocarbon Sampling Systems
Pressure relief for abrasive and high operating pressure crude oil or hydrocarbon sampling applications.
Sample Pump Protection
Protects crude oil and hydrocarbon sample pumps and systems from overpressurization.
Resources
Stainless Steel Construction
Withstands corrosive and abrasive sampling environments.
Externally Adjustable Design
Allows easier access and pressure setting adjustment.
Locking Mechanism
Helps maintain the selected relief setting.
Repairable Poppet
Simplifies maintenance and helps extend service life.
Inline and External Relief Capability
Allows safe pressure relief based on system design requirements.
Soft and Hard Seal Options
Supports low- and high-pressure applications.
