Hydraulically-operated relief valve IR-43Q-R

diaphragmquick

Subtitle
With metal control accessories (R).

Overview
The BERMAD IR-43Q-2W-R Quick Pressure Relief Valve is a hydraulically operated, diaphragm-actuated control valve designed to relieve excessive line pressure when it rises above the preset maximum. It responds immediately and with high repeatability by opening fully for pressure relief and provides smooth, drip-tight progressive closing.

Hydraulic Pressure Control

• Line-pressure driven operation
• Long-term drip-tight sealing
• Stable setting retention over time
• Wide adjustable setting range
• Tight setting window with minimal hysteresis

Advanced Hydro-Efficient Globe Design

• Unobstructed flow path to minimize head loss
• Single moving part for simplified dynamics
• High flow capacity for rapid pressure dissipation

Fully Supported & Balanced Diaphragm

• Requires low opening and actuation pressure
• Progressively restrains valve closing to prevent water hammer
• Prevents diaphragm distortion for long service life

User-Friendly Design

• Easy pressure setting for field adjustments
• Simple in-line inspection and maintenance

Typical Applications (Irrigation)

• System burst protection
• Momentary pressure peak elimination
• System-failure visual indication
• Filter burst protection

Additional Features

• F: Large control filter
• I: Position indicator assembly

Technical specifications

• Model: IR-43Q-2W-R
• Series: 400 Series
• Control accessories: Metal control accessories (R) as indicated
• Operation: Hydraulically operated, diaphragm actuated
• Application segment: Irrigation and water distribution
• Product code / barcode: 26310