Cla-Val Pressure Relief Valve – Model 50B-4KG1 & 2050B-4KG1

Cla-Val Fire Pump Pressure Relief Valve – 50B-4KG1 & 2050B-4KG1

The Cla-Val Model 50B-4KG1 Globe / 2050B-4KG1 Angle Pressure Relief Valve is designed specifically for automatic pressure management in fire protection pumping systems. This pilot-controlled valve helps maintain constant pressure at the fire pump discharge within close limits, even when system demand changes.

During fire pump startup, the Cla-Val Pressure Relief Valve modulates to relieve excess pump capacity while maintaining positive system pressure at the pump discharge. When fire demand decreases or stops, the valve opens to divert the entire pump output to discharge, helping prevent pressure surges in the pipeline and allowing the fire pump to be stopped.

With automatic pilot-controlled operation, the Cla-Val fire pump relief valve provides an effective pressure management solution for fire protection pumping installations.

Available Models

• 50B-4KG1: Globe Pattern Pressure Relief Valve
• 2050B-4KG1: Angle Pattern Pressure Relief Valve

Key Features

• Specifically designed for fire protection pumping systems
• Automatic pressure relief operation
• Pilot-controlled pressure regulation
• Maintains consistent pump discharge pressure
• Modulates to relieve excess pump capacity during startup
• Diverts full pump output when fire demand slows or ceases
• Helps prevent pressure surges in fire protection pipelines
• Available in globe and angle configurations

Working Principle

1. During Pump Startup

The valve modulates to relieve excess pump capacity while maintaining positive pressure at the pump discharge.

2. During Changing Fire Demand

The pilot control system automatically regulates the valve to maintain the desired system pressure within close limits.

3. When Fire Demand Stops

The valve opens to divert the entire pump output to discharge, helping prevent pipeline pressure surges and allowing the fire pump to be stopped.

Applications

• Fire protection pumping systems
• Fire pump discharge pressure management
• Commercial building fire protection systems
• Industrial firefighting installations
• Fire pump room installations
• Large-scale fire protection water supply systems

Why Choose Pacific Tech & Engineering Ltd.?

Pacific Tech & Engineering Ltd. provides comprehensive fire protection products and engineering solutions in Bangladesh. We support commercial, industrial and institutional projects with fire pumps, pressure control valves, firefighting equipment and fire protection system components.

Contact our team for Cla-Val Pressure Relief Valve availability, technical specifications and project quotations.