Prevost Conex Male Reducer

Description

Prevost Conex Male Reducer (RPN K)

Simplified Port Sizing for Direct Air Line Transitions

The Prevost Conex Male Reducer (RPN K) is a high-performance adapter designed to step down a threaded port to a smaller push-in tubing size in a single, compact unit. Unlike standard reducers that require multiple pieces to bridge a connection, the RPN K series threads directly into a larger valve, manifold, or cylinder port, providing an immediate instantaneous connection for smaller-diameter technical tubing.

This “all-in-one” design is the professional’s choice for reducing the footprint of pneumatic assemblies and eliminating unnecessary leak points in high-density systems.

Key Features

• Direct Port-to-Tube Reduction: Eliminates the need for a separate threaded bushing and a straight push-in fitting. The RPN K provides a streamlined, single-piece transition from a larger male thread to a smaller tubing port.
• Instantaneous “Grip” Technology: The push-in port is equipped with Prevost’s signature stainless steel gripping ring. Simply push the technical tubing (PU, PA, or PE) into the fitting for an immediate, tool-free, and vibration-proof seal.
• Teflon-Coated or Gasket-Sealed Threads: Depending on the configuration, these fittings feature pre-applied thread sealant or an integrated O-ring/gasket. This ensures a fast, reliable seal without the mess of manual taping or liquid sealants.
• Ultra-Compact Profile: The slim, straight-line design is ideal for recessed ports or manifolds where multiple fittings must be mounted in close proximity without mechanical interference.
• Rugged Hybrid Construction: Manufactured from a combination of high-grade nickel-plated brass for the threaded base and high-impact technical polymer for the push-in body. This ensures superior mechanical strength and resistance to corrosion and workshop oils.

Technical Specifications

Feature	Specification
Connection Type	Male Threaded Reducer to Push-in Tube
Reference Series	RPN K (Metric) / RPN KR (Fractional)
Thread Options	NPT, BSPP (G), or BSPT (R) — 1/8″ to 1/2″
Max Operating Pressure	145 PSI (10 bar)
Vacuum Rating	-28 inHg
Temperature Range	32°F to 140°F (0°C to +60°C)

The Efficient Bridge for Modular Pneumatics

The Prevost RPN K Male Reducer is specifically engineered for modular system design. It is frequently used in scenarios where a primary air component (like a filter-regulator or large valve) is only available with 1/2″ or 3/8″ ports, but the downstream actuator or pilot circuit requires small 4mm, 6mm, or 1/4″ tubing.

By using the RPN K, you maintain the structural integrity of the threaded connection while immediately adapting to the flexible routing of modern push-to-connect systems.

Ideal Applications

• Manifold Header Outlets: Reducing large supply ports to match smaller branch lines for actuators or sensors.
• Cylinder Port Adaptation: Directly fitting a small supply line to a larger cylinder port without bulky adapters.
• Pneumatic Control Panels: Neatly transitioning from hard-piped threaded inlets to internal flexible tubing runs.
• Tooling Retrofits: Adapting older, large-threaded pneumatic tools to work with modern small-diameter supply lines.

Installation Tip

When selecting an RPN K, match the thread size of your port first, then choose the required tubing OD. For NPT threads, ensure the fitting is tightened to standard torque to engage the sealant. For BSPP (parallel) threads, ensure the O-ring/gasket is properly seated against the port face for a perfect 100% seal.