Ball Valve SE 3 PC
What is a Ball Valve SE 3 PC?
A Ball Valve SE 3 PC (Screwed End, 3-Piece Design) is a quarter-turn valve used for isolating or regulating the flow of liquids and gases. It features a ball with a central bore that rotates within the valve body to start or stop flow instantly. The 3-piece design consists of two end caps and a central body, which allows easy disassembly for cleaning, maintenance, or seal replacement without removing the valve from the pipeline.
Asaid Steel Industries is a trusted manufacturer and supplier of Ball Valve SE 3 PC, offering premium-grade valves in stainless steel and carbon steel. Designed for durability and precision shut-off, these 3-piece ball valves provide excellent performance, easy maintenance, and a long service life for a wide range of industrial applications.
Key Features
Leak-Proof
Jointing
Robust
Construction
High Pressure
Resistance
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Bore (NB) | ½” (DN15) to 12” (DN300) (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500 |
| PN Ratings | PN10, PN16, PN25, PN40, PN64 | |
| Product Types | Ball Valve Design | 3-Piece Body Construction |
| Operation | Lever Operated, Gear Operated, Pneumatic Actuated, Electric Actuated | |
| Bore Type | Full Bore, Reduced Bore | |
| Material Options | Body & End Caps | Stainless Steel (CF8, CF8M, CF3M), Carbon Steel (WCB), Duplex, Super Duplex, Alloy Steel |
| Ball & Stem | SS 304, SS 316, SS 316L, Duplex, Titanium-Coated | |
| Seat & Seals | PTFE, RPTFE, PEEK, Metal-to-Metal (Fire-Safe Design) | |
| Standards & Certifications | Design Standards | API 6D, ASME B16.34, BS 5351 |
| Face-to-Face | ASME B16.10 | |
| Flange Standards | ASME B16.5, ASME B16.47, EN 1092 | |
| Testing Standards | API 598, ISO 5208 | |
| Certifications | ISO 9001, CE, ATEX, SIL-3 | |
| Design Features | End Connections | Flanged, Screwed (BSP/NPT), Socket Weld, Butt Weld |
| Stem Design | Blow-out Proof Stem | |
| Fire-Safe Design | API 607, ISO 10497 Certified | |
| Locking Device | Padlock Provision on Handle | |
| Maintenance | Easy inline maintenance due to 3-piece construction | |
| Coating & Surface Finish | External Coating | Epoxy Coated, Zinc Plated, Electro-Polished |
| Optional Coatings | PTFE Lining, Ceramic Coating | |
| Surface Finish | Machined, Smooth, Polished | |
| Testing & Inspection | Pressure Testing | Hydrostatic (Body & Seat), Pneumatic |
| Non-Destructive Testing | Radiography (RT), Ultrasonic (UT), Magnetic Particle (MPI), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact, Corrosion Testing (as per NACE MR0175) |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 480 – 750 | MPa (Carbon Steel, Stainless Steel, Alloy Steel) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 120 – 200 | HB (Brinell) |
| Elongation | ≥ 18 – 30 | % (material-dependent) |
| Density | 7.8 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 420 | MPa |
| Corrosion Resistance | Good to Excellent (SS > CS > Alloy Steel) | – |
| Thermal Conductivity | 14 – 45 | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 120 – 200 | HB |
| Seat Material Properties | PTFE, RPTFE, PEEK (soft-seated); Metal-to-metal (fire-safe) | – |
| Surface Finish | Machined, Polished, Epoxy Coated (external) | ASME B16.34 |
| Welding Type / End Connections | Butt Weld, Socket Weld, Flanged, Screwed (NPT/BSP) | – |
| Operating Temperature Range | -29 to 425 °C (soft-seated), up to 600 °C (metal-seated) | Material-dependent |
| Pressure Rating | Class 150, 300, 600, 900, 1500 | ASME B16.34 / API 6D |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Applications of Ball Valve SE 3PC
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the advantage of a 3-piece ball valve over a 1-piece or 2-piece?
Can Ball Valve SE 3 PC be used for both liquids and gases?
Are the seats replaceable?
Does Asaid Steel Industries offer high-pressure 3-piece ball valves?
