Cast Steel Gate Valve - ANSI Class 150Lb - API 600, 2" to 36"
We supply ANSI Class 150Lb Cast Steel Gate Valve as a professional manufacturer and supplier, offering a cost-effective solution for general-purpose industrial pipeline systems. Manufactured in accordance with API 600 and API 6D, this cast steel gate valve features rising stem OS&Y, bolted bonnet construction, and flexible or solid wedge design. Available in sizes 2″ to 36″ (DN50 to DN900) with pressure rating ANSI Class 150Lbs (CL150) — the most commonly specified pressure class for water distribution, HVAC, fire protection, and general industrial applications. End connections include flanged (RF, FF) and butt weld (BW). Materials include carbon steel (WCB, LCB), stainless steel (CF8, CF8M, CF3, CF3M), alloy steel (WC6, WC9, C5, C12), and duplex stainless steel (4A, 5A). Actuation options include manual handwheel, gear operated, and bare stem for electric actuator.
Cast Steel Gate Valve Specification for Class 150Lb
• Design & Manufacture: ANSI B16.34, API 600, API 6D
• Construction: Outside Screw and Yoke (OS&Y), Bolted Bonnet, Solid or Flexible Wedge Design
• Size Range: 2″ to 36″ (DN50 to DN900)
• Pressure Rating: ANSI Class 150Lbs (CL150) — the industry standard for general service
• End Connections: Flanged (RF, FF), Butt Weld (BW)
• Body Materials: WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12, 4A, 5A or Equivalent
• Trim Materials: Various trim materials are available to suit different service conditions
• Actuator Type: Manual Handwheel, Gear Operated, Electric Actuator (Bare Stem)
• Sour Service: NACE MR 0175 on Request
✓ Ideal for general service — cost-effective, readily available, and widely stocked
Gate Valve 150LBS Main Parts and Materials
| Part Name | Material | ||
|---|---|---|---|
| Carbon Steel (WCB) | Stainless Steel (CF8 / CF8M) | Alloy Steel (WC6 / WC9) | |
| Body | A216 WCB | A351 CF8 / CF8M | A217 WC6 / WC9 |
| Bonnet | A216 WCB | A351 CF8 / CF8M | A217 WC6 / WC9 |
| Wedge / Disc | WCB + 13Cr / STL | CF8 / CF8M | WC6 / WC9 + 13Cr / STL |
| Seat | 13Cr / STL | SS304 / SS316 | 13Cr / STL |
| Stem | A182 F6a / F304 / F316 | A182 F304 / F316 | A182 F6a / F304 / F316 |
| Bolts / Nuts | A193 B7 / A194 2H | A193 B8 / A194 8, B8M / 8M | A193 B7 / A194 2H |
| Gasket | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
| Packing | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
Reference: API 600, API 6D, ANSI B16.34. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Cast Steel Gate Valve Dimensions - ANSI Class 150Lb
| NPS (inch) | DN (mm) | L (RF) mm | L1 (BW) mm |
|---|---|---|---|
| 2 | 50 | 178 | 216 |
| 2 1/2 | 65 | 191 | 241 |
| 3 | 80 | 203 | 283 |
| 4 | 100 | 229 | 305 |
| 6 | 150 | 267 | 403 |
| 8 | 200 | 292 | 419 |
| 10 | 250 | 330 | 457 |
| 12 | 300 | 356 | 503 |
| 14 | 350 | 381 | 572 |
| 16 | 400 | 406 | 610 |
| 18 | 450 | 432 | 660 |
| 20 | 500 | 457 | 711 |
| 24 | 600 | 508 | 813 |
| 28 | 700 | 610 | 914 |
| 30 | 750 | 610 | 914 |
| 32 | 800 | 660 | 965 |
| 34 | 850 | 711 | 1016 |
| 36 | 900 | 711 | 1016 |
Reference: API 600, API 6D, ANSI B16.10. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Reference Drawing: Cast Steel Gate Valve Class 150Lb Dimensions.
Industrial Gate Valve Dimension Details
Typical Applications of 150Lb Cast Steel Gate Valve
• Water distribution: the most common valve for municipal water supply and distribution networks.
• HVAC systems: heating, ventilation, and air conditioning pipelines for full-flow isolation.
• Fire protection: fire main lines and sprinkler systems requiring reliable on-off service.
• General industrial pipelines: non-corrosive and mildly corrosive media where full bore flow is required.
• Power plant auxiliary systems: cooling water, service water, and low pressure steam lines.
• Petrochemical and oil & gas: low pressure service lines and tank farm isolation.
FAQ - Cast Steel Gate Valve ANSI Class 150Lb
Q1: What is a Class 150Lb cast steel gate valve?
A: A Class 150Lb cast steel gate valve is a linear motion valve designed for on-off service in pipelines. It uses a wedge-shaped disc that slides up and down to open or close the flow path. It is manufactured to API 600 / API 6D / ANSI B16.34 and is rated for ANSI Class 150 (approximately PN20) pressure.
Q2: What is the difference between gate valve and globe valve?
A: A gate valve uses a wedge that moves perpendicular to the flow, providing full bore flow with minimal pressure drop — ideal for on-off service. A globe valve uses a plug that moves along the flow axis, providing better throttling and flow regulation — ideal for modulating service. Gate valves should not be used for throttling.
Q3: What is the difference between OS&Y and NRS gate valves?
A: OS&Y (Outside Screw and Yoke) has a rising stem that visually indicates valve position, and the stem threads are outside the media, making it suitable for corrosive and high temperature service. NRS (Non-Rising Stem) has a non-rising stem, requiring less vertical space — commonly used in buried or space-limited installations.
Q4: What materials are available for 150Lb gate valves?
A: Common body materials include WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12, 4A, and 5A. Various trim materials such as 13Cr, STL, SS304, and SS316 are available to suit different service conditions.
Q5: What end connections and actuation options are available?
A: End connections include flanged (RF, FF) and butt weld (BW). Actuation options include manual handwheel, gear operated, and bare stem for electric actuator. Other options are available on request.
Q6: Is NACE MR 0175 available for gate valves?
A: Yes. NACE MR 0175 compliance is available on request for sour service applications. Please specify this requirement when requesting a quotation.
Get a Fast Quote for 150Lb Cast Steel Gate Valve
Send us your size, pressure rating, material, end connection, actuation type, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
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