Looking for CROSBY SAFETY RELIEF VALVE From PT. Agung Perkasa Sejahtera. PT. Agung Perkasa Sejahtera selling CROSBY SAFETY RELIEF VALVE and also Barton Chart Recorder, Fisher Control Valve, Crosby Pressure Safety Valve, Mueller Y Strainer, Swagelok Valve, fitting. For requests and quotations, click Request a Quote button down below.