Overflow Valve

Introduction

• Refrigerants : Applicable to HCFC, HFC, R717(Ammonia) and R744 (CO2). For further information please see installation information for COFV.
• Standard version : - 46/+150°C
• Pressure range : The valves are designed for max, working pressure 40 bar g(580 psig)

Features

Three functions in one valve. The OFV valve combines the functions of an overflow valve, a check valve and a stop valve COFV are angle-way overflow valves, which have adjustable opening pressure and cover the differential pressure range 2-8 bar (29-116 psi). The valve can be closed manually, during plant service and have back seating, enabling the spindle seal to be replaced with the valve still under pressure. The valves are specially designed to prevent fluttering due to low velocity In consequence it is possible to apply the valves with wide fluctuations in capacity demands and maximum performance to part load. A flexible O-ring provides perfect sealing over the seat.

Installation

The valve is designed to resist very high internal pressure, but as to the pipe system in general, hydraulic pressure caused by thermal expansions in entrapped refrigerants should be avoided.