Ball Valves

Eugene Fastener stocks full-port brass ball valves from Midland Industries in sizes from 1/4" through 2", available by the piece or in bulk for maintenance, mechanical, plumbing, and construction accounts. Our standard series is rated 600 WOG (Water, Oil, Gas) with CSA, UL, and FM certification for compressed air, HVAC, natural gas, fuel oil, and general industrial fluid systems. For potable water, food service, and plumbing installations where lead content is a compliance requirement, we carry the same complete size run in lead-free brass — NSF/ANSI 61 certified and California AB1953 compliant. All valves feature two-piece brass bodies, full-port bores for unrestricted flow, PTFE seats, and Female NPT x Female NPT (FxF) end connections. Whether you need a single replacement valve for a maintenance call or a full-project quantity, we have them on the shelf in Eugene.

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Brass Ball Valves — Full Port, 600 WOG and Lead-Free NSF/ANSI 61

Get Job Pricing / Submittals Email Sales

When requesting pricing or submittals, include pipe size, quantity, and whether NSF/lead-free compliance is required.

Standard 600 WOG Brass Ball Valves

The standard series (Midland 940171–940178) is rated for 600 WOG — 600 PSI working pressure with water, oil, or gas at ambient temperature. Two-piece brass body construction with a full-port bore means flow capacity matches the pipe ID with no pressure drop from valve restriction. PTFE seats provide a reliable bubble-tight seal and handle temperatures from -20°F to +366°F, covering the full range of commercial HVAC, compressed air, and light industrial service. Female NPT x Female NPT (FxF) end connections make installation straightforward — thread on pipe nipples or fittings on both ends.

CSA, UL, and FM listed — this certification package covers the widest range of commercial and industrial applications, including fire protection systems (FM), commercial buildings (UL), and Canadian/US general service (CSA). For compressed air systems, HVAC water lines, fuel oil transfer, natural gas shutoffs, and general plant utility service, these are the valves mechanical contractors and facility maintenance teams reach for.

Lead-Free Brass Ball Valves — NSF/ANSI 61 Certified

The lead-free series (Midland 940171LF–940178LF) uses the same full-port, FxF NPT, two-piece design but in lead-free brass alloy rated at 400 WOG. NSF/ANSI 61 certified for contact with potable water and compliant with California AB1953 (the "low-lead" law that restricts wetted surface lead content to 0.25% or less). If your project is in California, Oregon, Washington, or any state that has adopted AB1953 standards — or if the spec calls for NSF-listed components — these are the required valves for water supply lines, drinking water systems, food service plumbing, and commercial building water distribution.

Selecting the Right Series

If Your Application Is… Use This Series
Compressed air, HVAC, fuel oil, natural gas, industrial process Standard 600 WOG (CSA/UL/FM)
Potable water, drinking water, food service, CA/OR/WA projects Lead-Free LF (NSF/ANSI 61 + AB1953)
Fire protection systems Standard 600 WOG (FM listed)
General commercial plumbing, mixed use Lead-Free LF (safest default for any water service)

Available Sizes and Applications

Size Typical Uses
1/4" – 3/8" Instrument air, pneumatic tool isolation, sample lines, residential gas appliances, small process shutoffs
1/2" – 3/4" Residential plumbing, water heaters, compressed air branches, fuel systems, irrigation zones
1" Commercial HVAC water lines, compressed air mains, boiler feed, light industrial process
1-1/4" – 1-1/2" Commercial and industrial process piping, compressed air headers, HVAC mechanical rooms, pump isolation
2" High-flow industrial lines, chiller and cooling tower piping, fire protection service, pump discharge

Why Full Port?

A full-port (also called full-bore) ball valve uses an oversized ball with a bore that matches the inside diameter of the pipe. Flow passes straight through with minimal restriction and no pressure drop across the valve. This matters for compressed air systems where pressure loss reduces tool performance, for fire protection lines where flow rate is specified, and for any application with flow-sensitive equipment downstream. Reduced-port valves cost slightly less but create a permanent restriction in the line — in most commercial and industrial applications, full port is the right choice.

Ordering in Quantity

Ball valves are one of those items where having a few extra on the shelf pays for itself the first time a valve fails during a job. Eugene Fastener prices these by the piece with no minimum order — buy one for a service call or a case for a contractor's truck stock. For larger project quantities or if you need submittals and cut sheets for a mechanical spec, contact our sales team directly.

Shop related products: Pipe Nipples • Brass Pipe Fittings • Hose Fittings. Eugene Fastener has supplied Pacific Northwest contractors, maintenance teams, and industrial accounts with quality fasteners and fittings since 1965. Back to Top ↑

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