Ball valves are one of the most widely specified components in plumbing, HVAC and industrial piping systems — and for good reason. They’re compact, reliable, and offer fast, full-bore shut-off with minimal maintenance. But not every ball valve is built for every application, and choosing the wrong one can lead to pressure drops, premature wear, or costly rework on site.
This guide walks through the key specifications procurement teams and contractors should check before adding ball valves to a BOQ.
Every ball valve is rated for a maximum working pressure (commonly PN16, PN25 or PN40) and a temperature range. Selecting a valve rated below your system’s operating conditions is one of the most common — and most avoidable — specification errors.
Body material affects durability, corrosion resistance, and compatibility with the fluid being handled.
| المادة | Best For | Notes |
|---|---|---|
| Forged Brass (CW617N) | Domestic water, general plumbing | Cost-effective, widely available |
| Stainless Steel | Corrosive or high-purity fluids | Higher cost, longer service life |
| PVC / uPVC | Chemical & drainage lines | Not suitable for high temperatures |
Seat material matters just as much as the body. PTFE seats are the industry standard for a reliable, low-friction seal across most plumbing and HVAC applications.
A full-bore (full-port) valve has an internal diameter matching the connected pipe, allowing unrestricted flow with minimal pressure loss — important for fire protection lines and systems where flow rate is critical. Reduced-bore valves cost less but introduce a flow restriction, which is acceptable for low-flow or isolation-only applications.
“The right valve isn’t the cheapest one on the list — it’s the one that matches your system’s pressure, media, and flow requirements.”
Confirm whether your project requires threaded (BSP/NPT), flanged, or press-fit connections. Mismatched connection types are a frequent cause of on-site delays, so this should be confirmed against the approved drawings before ordering.
For government, industrial, and larger commercial projects, valves are often required to meet specific standards such as ISO 228 or EN 331. Always request datasheets and certification documents in advance — this can prevent delays during project handover and inspection.
Al-Fanoos’ technical team can help you match the right valve specification to your project requirements — from single-unit plumbing repairs to full industrial process lines. Upload your BOQ or talk to our sales team for a project-based quotation.
