The Model 887 Flexflo® Surge Reliever is designed to protect pipelines from excessive pressure surges in liquid applications. Flexflo Surge Relievers are typically installed near loading terminals, pump stations and tank farms. The Model 887 features quick opening times in the low millisecond range to provide unsurpassed protection of your pipelines against pressure surge. Model 83 and 900TE Flexflo Regulators may also be utilized for protection in cases where slower speed of response is acceptable. For best accuracy and fastest speed of response for surge protection, use the Model 887 Surge Reliever.