Over Flow Valve Type OFV 20-25

INTRODUCTION

OFV are angle-way over flow valves, which have ajustable opening pressure and cover the differential pressure range (ΔP): 2 – 8 bar (29 – 116 psi). The valve can be closed manually, e.g. during plant service and have back seating, enabling the spindle seal to be replaced with the valve still under pressure. The valves are especially designed to prevent fluttering due to low velocity and/or low density. In consequence it is possible to apply the valves with wide fluctuations in capacity demands, i.e. from maximum performance to part load. A flexible O-ring provides perfect sealing over the seat.

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