Prevost Full Flow Brass Ball Valves

Description

Prevost Full Flow Brass Ball Valves | High-Pressure Industrial Air & Fluid Control

Eliminate pressure drop and maximize flow with the industry standard for compressed air isolation.

The Prevost RSI Series Ball Valve is engineered for one specific purpose: to deliver 100% of your system’s power without restriction. Unlike standard plumbing valves that narrow the internal passage, these valves feature a Full Bore design. The internal opening perfectly matches the pipe diameter, ensuring zero turbulence and zero pressure drop—critical for maintaining peak performance in pneumatic tools and machinery.

Forged from premium CW617N nickel-plated brass, these valves are built to withstand the rigors of industrial environments. They offer superior corrosion resistance compared to raw brass and are guaranteed silicone-free, making them safe for use in paint booths and sensitive finishing applications.

Key Features

• Full Bore Design: The internal ball opening matches the pipe size, eliminating flow restriction and pressure loss.
• Industrial Durability: Hot-forged, sanded, and nickel-plated brass body resists corrosion and harsh shop environments.
• High-Pressure Rating: Rated for up to 40 Bar (580 PSI), far exceeding standard hardware store valves (typically rated for only 150 PSI).
• Leak-Free Integrity: Features self-lubricating PTFE (Teflon) seats and FPM (Viton) seals for a perfect, maintenance-free seal.
• Paint Shop Safe: Guaranteed silicone-free construction prevents contamination in painting and finishing lines.
• Smooth Operation: Hard chrome-plated brass ball and a long, PVC-coated steel handle ensure easy, quarter-turn open/close action even under pressure.

Technical Specifications

Feature	Specification
Body Material	Nickel-Plated Brass (CW617N)
Ball Material	Hard Chrome-Plated Brass
Handle	Carbon Steel with Blue PVC Grip
Seal Material	Pure PTFE Seats / FPM O-rings
Max Pressure	580 PSI / 40 Bar (for sizes 1/4″ to 1″)*
Temperature Range	-4°F to +302°F (-20°C to +150°C)
Thread Type	NPT (National Pipe Taper)

Why It Matters

In a compressed air system, every restriction costs you money. A standard “reduced port” valve acts like a bottleneck, forcing your compressor to work harder to maintain pressure at the tool. Installing Prevost Full Flow valves ensures that the air you generate reaches your equipment with maximum efficiency.

Available Sizes

• 1/4″ FNPT
• 3/8″ FNPT
• 1/2″ FNPT
• 3/4″ FNPT
• 1″ FNPT
• 1-1/4″ to 2″ FNPT (Note: Larger sizes typically rated to 464 PSI / 32 Bar)

Installation Note

Ideally suited for isolating main aluminum pipe ring main sections, compressor outlets, or individual drops. For the best seal, always use a high-quality thread sealant or PTFE tape during installation.