The BRISTOL Cla-Val 6″ (150mm) Series 300 PN25 Hydraulic Control Valve is a premier, diaphragm-actuated control valve designed for precise regulation of flow, pressure, or liquid levels in demanding industrial and municipal applications. Built to withstand high-pressure environments, this valve body is clearly marked with its PN25 / 300 PSI rating and 6″ (150mm) size, ensuring a perfect match for heavy-duty waterworks or fire protection systems.

Key Features & Construction

• Premium Cast Construction: Features a rugged, heavy-walled main valve body finished in high-visibility industrial red enamel to resist corrosion, weathering, and harsh field conditions.

• Advanced Pilot System: Equipped with a top-mounted, bronze/brass pilot control system and rigid stainless steel external tubing for reliable, automated hydraulic performance without external power.

• High Pressure Rating: Rated for PN25 operations, making it ideal for high-pressure water transmission grids, commercial building fire mains, and industrial processing lines.

• Easy Maintenance: The bolted-bonnet design allows for straightforward, top-entry access to the internal diaphragm and seat assembly without removing the valve from the pipeline.

Technical Specifications

• Brand: BRISTOL

• Size: 6 Inches / 150 mm

• Pressure Class: PN25 / 300 Class equivalent

• Material: Ductile Iron Body, Stainless Steel Trim/Tubing

• Application: Water distribution, pressure management, surge control, and fire protection systems