3/8 in. Brass Ball Valve, 600 WOG Full Port | 940172
3/8 in. Brass Ball Valve, 600 WOG Full Port | 940172
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The 3/8 in. forged brass ball valve (part 940172) delivers full-port, quarter-turn shutoff rated 600 psi WOG non-shock and 150 psi WSP saturated steam. Female NPT threads per ANSI B1.20.1, hard chrome-plated solid ball, virgin PTFE seats, and a bottom-loaded blow-out-proof stem. The manufacturer designates this line UL 842 / UL 258 / UL 125 and FM (5 psig gas) in its catalog; Apex has not independently verified the listing file. Each valve individually tested per the manufacturer.
Technical Specifications
| Manufacturer Part Number (MPN) | 940172 |
| Nominal Size | 3/8 in. |
| Valve Type | Full-port ball valve, forged brass |
| End Connections | Female NPT × Female NPT, ANSI B1.20.1 |
| Pressure Rating | 600 psi WOG non-shock |
| Steam Rating | 150 psi WSP saturated steam |
| Temperature Range | −22°F to 302°F (−30°C to 150°C) |
| Listings | UL 842, UL 258, UL 125, FM (5 psig gas) — manufacturer designation; listing file not independently verified by Apex |
| Port | Full port (full bore) |
| Operation | Quarter-turn lever, vinyl-insulated handle |
Dimensions
| Bore Diameter | 0.41" |
| End-to-End Length | 1.75" |
| Height (center to top) | 1.92" |
| Handle Length | 3.54" |
| Weight | 0.30 lb |
Materials of Construction
| Body | Forged Brass |
| Ball | Brass, hard chromium plated |
| Stem | Brass, bottom-loaded, blow-out-proof, adjustable packing gland |
| Seats, Stem Packing & Thrust Washer | Virgin PTFE |
| Handle | Plated carbon steel, yellow vinyl insulator |
Performance & Testing
- Full-port bore — minimal pressure drop
- Each valve individually pressure tested
- Confirm media and service compatibility with the manufacturer before specifying
- Blow-out-proof stem with adjustable packing gland — field-serviceable seal
- Deep threads for better connections
- Not lead-free — for potable water supply lines, choose a lead-free certified valve (see Lead-Free Valves in our Valves menu)
Other Sizes in This Series
Forged Brass Full Port Ball Valve, 600 WOG (1/4"–2") / 400 WOG (3"–4"), Female NPT. Jump to another size:
| Size | Part # |
| 1/4 in. | 940171 |
| 3/8 in. (this page) | 940172 |
| 1/2 in. | 940173 |
| 3/4 in. | 940174 |
| 1 in. | 940175 |
| 1-1/4 in. | 940176 |
| 1-1/2 in. | 940177 |
| 2 in. | 940178 |
| 3 in. | 940180 |
| 4 in. | 940181 |
Typical Applications
This 3/8 in. full-port brass valve suits water distribution, compressed air, oil and gas lines, fuel transfer (gasoline/diesel), HVAC, and general industrial shutoff. Not for potable water supply (not lead-free).
Cross-References & Interchange
Replacing another brand's 3/8 in. 600 WOG brass ball valve? Match nominal size, end connections, and WOG rating for a direct fit — or send us your part number and we will confirm the interchange.