With over 30 years experience, professionals have made ISLIP Flow Controls their number one choice for Strainers, Valves and Pipeline Accessories. Since founder David Islip formed the business we have maintained a family ......With over 30 years experience, professionals have made ISLIP Flow Controls their number one choice for Strainers, Valves and Pipeline Accessories. Since founder David Islip formed the business we have maintained a family company with family values: Integrity Commitment to superior service Dedication to solving problems Developing the best products in every market we serve