Gate Valve Screw End
What is a Gate Valve Screw End?
Gate Valve Screw End (SE) is a compact and threaded-end version of a gate valve designed for low- to medium-pressure applications. These valves are used to control or isolate the flow of liquids and gases by raising or lowering a gate within the valve body. Screw End Gate Valves are ideal for smaller pipelines where flanged or welded joints are not required, ensuring reliable sealing and easy maintenance.
Asiad Steel Industries manufactures and exports precision-engineered Gate Valve Screw End (SE) under the Racer brand, ensuring high durability, tight shutoff, and compliance with international quality standards.
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 4” (DN15 – DN100) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600 |
| PN Ratings | PN6, PN10, PN16 | |
| Fitting Types | Gate Valve SE | |
| 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 B1.20.1 (Threaded Ends) |
| ASTM | ASTM A351, ASTM A182, ASTM A479 | |
| European Standards | EN 558, EN 10226, DIN 3352 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Wall Thickness | As per ASME B36.19 (SS) / B36.10 (CS), customized options |
| End Connections | Screwed / BSP / NPT Female Ends | |
| Tolerance | As per ASME/ANSI standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil, Black Oxide |
| 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) | End-to-End (E) | Thread Size (BSP/NPT) | Height Open (H1) | Height Closed (H2) |
|---|---|---|---|---|---|
| ½” (DN15) | 65 | 70 | ½” | 145 | 110 |
| ¾” (DN20) | 75 | 80 | ¾” | 165 | 130 |
| 1” (DN25) | 90 | 95 | 1” | 185 | 150 |
| 1½” (DN40) | 105 | 115 | 1½” | 220 | 180 |
| 2” (DN50) | 120 | 130 | 2” | 260 | 210 |
| 2½” (DN65) | 145 | 155 | 2½” | 310 | 240 |
| 3” (DN80) | 160 | 170 | 3” | 360 | 280 |
| 4” (DN100) | 190 | 200 | 4” | 420 | 330 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa |
| 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) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 450 | MPa |
| Corrosion Resistance | Good to Excellent | – |
| 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 | – |
| Surface Finish | Machined / Polished / Passivated | – |
| Operating Temperature Range | -46 to 400 | °C (material-dependent) |
| Pressure Rating | Class 150, 300, 600 | ASME B16.34 Standards |
| End Connection Type | Threaded (BSP / NPT) | – |
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 Valve Screw End
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the main advantage of a screw end gate valve?
Can Gate Valve Screw Ends handle high pressure?
Are Screw End Gate Valves suitable for steam or gas?
What thread standards are available for Gate Valve SE?
