Technical REference Hub

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Over 200+ brands on offer
Our Story

Founded on a simple promise: if we can't help, no one can.

Just Valves began as a specialist valve supplier with a stubborn belief — that industrial customers deserved genuine technical advice, real stock, and an answer when the line went down at 2am. Not a call centre. Not a back-order. A solution.

That belief grew the business from a single Western Australian branch into a national network. Today we supply and service the full spectrum of industrial valves — ball, butterfly, knife gate, check, safety relief, lined and actuated — alongside the sealing, piping and instrumentation that surround them.

Valve Selection Guide

Which valve type for which application — quick reference for buyers and engineers

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Sizing & Designation

DN/NPS conversion, pressure classes (PN and ANSI), Cv/Kv flow coefficients

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Flange Reference

PCD, flange standards (AS 4087, ANSI, DIN), bolt patterns, raised vs flat face

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End Connections

Screwed (BSP/NPT), flanged, butt-weld, wafer, lug, socket weld — when to use each

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Material Grades

Body, trim, and seat material grades — carbon steel, stainless, duplex, alloys, plastics

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Leakage Classes

ANSI/FCI 70-2 leakage classes I through VI — what they mean and when they apply

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Pressure-Temperature Ratings

How temperature affects allowable pressure — key reference for carbon steel and SS

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Standards Reference

Key API, AS, ANSI, ISO, and DIN standards referenced in valve specification

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Flow Rates & Velocities

Recommended velocities by media, flow rate formulas, pipe bore and area reference

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Mesh & Screen Sizing

Strainer and filter aperture selection, mesh conversion table, pressure drop guidance

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Valve Installation & Maintenance

Installation guidelines, valve-type specific tips, commissioning checklist, troubleshooting

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Talk to Us

Whether you need a single valve for a maintenance job, a custom engineered solution for a critical process application, or a full audit and maintenance programme for your plant — the right person to speak to is always just one call away.