Flared Plug

Flared Plugs are precision-engineered tube fittings designed to securely close unused flare ports in hydraulic, pneumatic, automotive, and instrumentation systems. Unlike conventional threaded pipe plugs that rely mainly on thread interference or additional sealants, flare plugs create a controlled metal-to-metal sealing interface through direct contact between the machined flare cone and the mating tube seat.

Our Flared Plugs are manufactured through CNC machining processes with controlled thread geometry and precision flare cone surfaces to provide consistent sealing performance for distributors, Leak-free metal-to-metal sealing for high-pressure hydraulic manifolds, pneumatic circuits, and automotive fluid systems.

High-pressure hydraulic manifolds and mobile equipment require sealing solutions that withstand severe mechanical shock, pressure pulsation, and thermal cycling.

[ Thread Section: CNC Cut Class 2A/3A ]
→ Prevents cross-threading

[ Sealing Cone: Ra ≤ 0.8 μm Finish ]
→ Metal-to-metal zero-leak seal

[ Solid Bar Stock Construction ]
→ Superior burst pressure strength

[ Corrosion Protection: Zn-Ni / Passivated ]
→ Long service life in aggressive environments

Precision CNC Cone Geometry
Machined on multi-axis CNC turning centers to maintain exact angular tolerances (±15'). Eliminates localized point-loading and prevents fluid bypass under impulse pressure.

Solid Bar Stock Integrity
Turned strictly from cold-drawn solid metal bar stock (never weak cast iron or low-density pressings), providing superior tensile strength and thread shear resistance during high-torque tightening.

Class 2A / 3A Thread Precision
Pitch diameter tolerances are strictly controlled using calibrated thread ring gages to ensure smooth hand-tightening before final wrench torque.

Carbon Steel (Zinc-Nickel / Zinc Plated)
Cost-effective, high-strength option for mobile hydraulics, agricultural equipment, and construction machinery. Zinc-Nickel coating withstands 720+ hours of neutral salt spray testing (ASTM B117) without red rust.

Stainless Steel 316 / 316L
Superior resistance to pitting and chloride corrosion. Ideal for marine hydraulics, offshore oil & gas rigs, chemical processing, and food-grade fluid transfer lines.

Brass
Non-magnetic with high natural machinability. Excellent for pneumatic logic panels, low-pressure automotive tubing, and HVAC refrigeration control ports.

To ensure 100% batch consistency across thousands of parts for OEMs and stocking distributors, every lot undergoes strict quality verification:

Raw Material Inspection
→ CNC Turning & Threading
→ Optical Flare Angle Check
↓
EN 10204 3.1 Material Cert
→ Salt Spray & Plating Check

EN 10204 3.1 Certification
Chemical analysis and mechanical property test reports provided with every shipment.

Optical Profile Inspection
Flare angles, thread profiles, and undercut dimensions are verified using optical comparator measurement systems.

Cleanliness & Packaging
Parts are ultrasonic cleaned, de-burred, fitted with plastic protective thread caps, and packed in rust-inhibitive VCI bags for export.

We support global stocking distributors, hydraulic hose assemblers, and equipment OEMs with flexible manufacturing services:

Custom Dimensions
Special thread pitches, custom hex sizes, dual-step flare angles, or integrated socket drive heads based on your CAD drawings (.STEP, .IGES, .DWG).

Private Labeling & Packaging
Custom laser marking (Part Number, Logo, Batch ID) on the hex body, barcode labeling on inner boxes, and mixed SKU pallet packing.

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