6000 PSI SAE Flange

QS Flange: Xiamen 6000psi Sae Flange

A 6000 psi rated SAE flange for high pressure hydraulic lines, with O-ring face sealing and a bolted split connection at the fitting.

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One-Minute Overview

SAE flange rated at 6000 psi for high pressure hydraulic circuits.
O-ring face seal inside a bolted split connection at the fitting.
For lines where the working pressure leaves no margin for a weak joint.
Size and bolt pattern are confirmed per inquiry; detailed specifications on request.

When a hydraulic circuit works at 6000 psi, every joint is a pressure boundary and none of them is a place for improvisation. The 6000 psi SAE flange is made for exactly this class of line.

The 6000 psi rating of this SAE flange places it in the upper range of hydraulic working pressures, where joint design stops being a formality. At this level the O-ring face seal and the bolted clamping of a split flange connection are the practical standard: the O-ring provides a positive seal that threaded joints and sealants cannot guarantee, and the flange halves carry the full pressure thrust of the line. The connection follows SAE J518 style port geometry, so the flange mates with the ports used across high pressure hydraulic components.

Circuits in this pressure class appear in hydraulic presses, heavy mobile equipment, test stands and other systems where force is the whole point of the machine. Two rules matter here more than anywhere else. First, match the whole line to the same working pressure — a 6000 psi flange on a lower rated fitting only moves the weak point along the line. Second, treat installation torque as part of the rating: bolts tightened unevenly cost seal contact exactly where pressure is highest. Size and bolt pattern are confirmed per inquiry, together with the pressure class of the mating port.

Detailed specifications for this 6000 psi SAE flange are available on request.

FAQ

Q1. What does the 6000 psi rating cover in a flanged connection?

It refers to the working pressure the flanged joint of this series is designed for. The rating is only complete when the fitting, the O-ring, the mating port and the bolting all belong to the same pressure class, so the whole chain carries the load. We therefore confirm pressure class, size and bolt pattern per inquiry rather than assuming a generic combination, and detailed specifications are supplied on request.

Q2. Can I mix a 6000 psi flange with cheaper standard fittings?

You can bolt them together, and that is the problem. The joint will now be as strong as the weakest piece in it, so your 6000 psi flange becomes decoration. High pressure lines earn their safety margin by keeping every component in the same class — flange, fitting, port and O-ring. If budget is tight, it is safer to rate the whole circuit honestly than to upgrade one joint and hope.

Q3. Any special installation advice for high pressure flange joints?

Yes, and it is mostly about discipline. Clean and inspect the O-ring, tighten the halves evenly in a cross pattern, and recheck torque after the first pressurisation, because a joint that has settled once may need a second pass. Keep the line supported so vibration and side loads do not work on the seal. At 6000 psi, small installation habits are what separate a dry joint from a dangerous one.

Q4. How long is the production lead time?

Standard sizes are typically ready within 30 days, and in-stock items ship immediately. Larger or custom orders get a confirmed date per order, because the schedule depends on quantity, material, the bolt pattern you specify, and how busy production is at the moment you order.

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