4 in. 3-Piece 316 Stainless Steel Ball Valve
4 in. 3-Piece 316 Stainless Steel Ball Valve
The 4 in. 3-Piece 316 Stainless Steel Ball Valve (#949280) is a 1000 PSI WOG quarter-turn valve built for corrosive, high-pressure fluid service where brass or PVC won't hold up. Its 3-piece body unbolts for in-line cleaning, repacking, or seat replacement without removing the valve from the pipe, and the 316 stainless construction with PTFE seats and seals makes it a standard choice for chemical processing, oil & gas, steam, and water lines.
Availability: In stock — ships in 2–3 business days.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 949280 |
| Nominal Size | 4 in. |
| Valve Design | 3-Piece |
| Body / Ball Material | 316 Stainless Steel |
| Material Standard | ASTM A351 CF8M |
| Stem Material | 316 Stainless Steel |
| Trim Material | 304 SS washer & nut, 304 SS gland, PTFE thrust washer |
| Seat / Seal / Packing | PTFE |
| Connection Type | FPT x FPT (female NPT) |
| Thread Size | 4 - 8 NPT |
| Port Type | Standard Port |
| Opening Size | 3.94 in. |
| Pressure Rating | 1000 PSI WOG |
| Temperature Rating | −14 °F to 300 °F |
| Operator | 1/4-Turn Locking Handle (stainless steel w/ vinyl insulator) |
| Inlet to Outlet Length | 8.57 in. |
| Top to Inlet Center | 6.77 in. |
| Media | Water, Oil, Gas |
| Standards / Approvals | ANSI B2.1, API 598 |
Key Features
- 3-piece body — unbolts in-line for cleaning, repacking, or seat replacement without cutting the valve out of the line
- 316 stainless body and ball — corrosion-resistant for chemical, marine, and high-purity service
- 1000 PSI WOG rating with a −14 to 300 °F temperature range
- PTFE seats, seals, and packing — chemical-compatible, reliable sealing
- 1/4-turn locking handle — lockout/tagout ready
- Investment-cast body and cap (ASTM A351 CF8M); internal-entry, blow-out-proof stem
- Meets ANSI B2.1 and API 598
Common Applications
Chemical processing and dosing, oil & gas, steam and condensate, water treatment, and any service where 316 stainless corrosion resistance and field-serviceable 3-piece construction are required.