Gate Valve
What are Gate Valves?
Gate Valves are linear motion valves used to start or stop the flow of liquids in a pipeline. These valves operate by lifting a gate out of the flow path, allowing full unobstructed passage. Ideal for applications requiring minimal pressure drop and bi-directional flow, gate valves are widely used in water supply systems, oil and gas processing, and industrial piping networks.
Asiad Steel Industries is a leading manufacturer and exporter of high-quality Gate Valves under the Racer brand for standard and customized applications across various sectors.
Key Features
Leak-Proof
Jointing
Robust
Construction
High Pressure
Resistance
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Pipe Size (NPS) | ½” to 48” (DN15 – DN1200) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 |
| Fitting Types | Gate Valve | Gate Valve FE |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Standards & Certifications | ASME / ANSI | ASME B16.34 (Gate Valves), ASME B16.10 (Face-to-Face), ASME B16.5 (Flanged Ends) |
| ASTM | ASTM A351, ASTM A182, ASTM A479 | |
| European Standards | EN 558, EN 1092, DIN 3352 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Wall Thickness | As per ASME B36.10 (CS), ASME B36.19 (SS), customized options |
| End Connections | Flanged Ends, Threaded Ends, Butt Weld Ends | |
| Tolerance | As per ASME / ANSI standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil, Black Oxide, Hot-Dip Galvanized |
| Optional Coatings | Epoxy, PTFE, Polyurethane | |
| Surface Finish | Machined, Pickled, Polished, Passivated | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Non-Destructive Testing | Radiography (RT), Ultrasonic (UT), Magnetic Particle (MPI), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact |
Dimensions
| Nominal Size (NPS) | Face-to-Face (L) | Flange Diameter (D) | Bolt Circle Diameter (K) | No. of Bolts (n) | Bolt Size (d) | Flange Thickness (t) | Height Open (H1) | Height Closed (H2) |
|---|---|---|---|---|---|---|---|---|
| ½” (DN15) | 102 | 114 | 89 | 4 | 14 | 16 | 180 | 120 |
| ¾” (DN20) | 114 | 127 | 102 | 4 | 14 | 18 | 200 | 140 |
| 1” (DN25) | 127 | 140 | 114 | 4 | 14 | 18 | 230 | 160 |
| 1½” (DN40) | 178 | 165 | 135 | 4 | 18 | 20 | 280 | 190 |
| 2” (DN50) | 203 | 190 | 156 | 4 | 18 | 20 | 310 | 210 |
| 2½” (DN65) | 241 | 216 | 184 | 8 | 18 | 22 | 380 | 260 |
| 3” (DN80) | 267 | 229 | 190 | 8 | 18 | 22 | 420 | 280 |
| 4” (DN100) | 292 | 254 | 216 | 8 | 22 | 24 | 500 | 340 |
| 6” (DN150) | 356 | 305 | 272 | 8 | 22 | 26 | 650 | 430 |
| 8” (DN200) | 406 | 381 | 337 | 8 | 26 | 28 | 780 | 520 |
| 10” (DN250) | 483 | 445 | 406 | 12 | 26 | 30 | 950 | 650 |
| 12” (DN300) | 533 | 505 | 468 | 12 | 30 | 32 | 1150 | 780 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa (Stainless Steel, Carbon Steel, Alloy Steel) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 120 – 200 | HB (Brinell) |
| Elongation | ≥ 20 – 30 | % |
| Density | 7.8 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 450 | MPa |
| Corrosion Resistance | Good to Excellent (SS > CS > Alloy Steel) | – |
| Thermal Conductivity | 15 – 50 | 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 |
| Surface Finish | Machined / Polished / Passivated | – |
| Operating Temperature Range | -46 to 600 | °C (material-dependent) |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 | ASME B16.34 Standards |
| End Connection Type | Flanged / Threaded / Butt-Weld | – |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| 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 |
| 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 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Nitrogen (N) | — | — | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of Gate Valves
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
When should gate valves be used over globe valves?
Do gate valves work for throttling applications?
What is the difference between rising and non-rising stem types?
Are gate valves suitable for slurries or viscous media?
