M35-1 Monel American Standard Globe Valve is a specialized industrial valve engineered for the most volatile and corrosive environments. Manufactured in strict accordance with API 623 and ASME B16.34, this valve utilizes M35-1 (Cast Monel 400) to provide exceptional resistance to hydrofluoric acid, seawater, and reducing conditions where standard stainless steels would suffer rapid degradation.
Description
M35-1 (Cast Monel 400 / UNS N04400) is a high-performance nickel-copper alloy renowned for its unique chemical stability:
- Hydrofluoric Acid Resilience: M35-1 is the industry-standard material for HF alkylation units in refineries, offering unparalleled resistance to hydrofluoric acid across all concentrations.
- Marine & Brine Stability: Exceptional resistance to stress corrosion cracking and pitting in rapidly flowing seawater and brackish water.
- Reducing Environment Integrity: Unlike many stainless steels, Monel maintains its structural integrity in reducing environments and non-oxidizing acids.
- Resistance to Oxygen Hazards: Frequently used in oxygen service due to its resistance to ignition and low rate of heat release.
Features
- Optimized Throttling Design: Featuring a precision cone valve disc, this globe valve is designed for superior throttling. The conical disc provides a gradual increase in flow as the valve opens, allowing for highly accurate regulation of the process medium.
- “Low-In, High-Out” Engineering: The medium enters through the port below the disc and exits through the port above. This standard flow direction minimizes wear on the stem packing and ensures easier opening under high pressure.
- API/ASME Standard Compliance: Fully compliant with API 623 (design), ASME B16.10 (face-to-face), and ASME B16.5 (flanges), ensuring global technical compatibility and safety.
- Flexible Driving Modes: Available with manual handwheels, bevel gear transmission for higher torque requirements, or automated pneumatic and electric actuators for remote plant control.
Specifications
| Feature | Specification |
| Design Standard | API 623 / ASME B16.34 |
| Flange Dimensions | ASME B16.5 Class 150/300/600 |
| Face-to-Face | ASME B16.10 |
| Body Material | Monel Alloy M35-1 (Cast Monel 400) |
| Pressure Class | Class 150, 300, 600 |
| Temperature Range | -29°C to 425°C |
| Testing Standard | API 598 |
Applications
- Petroleum Refining: HF Alkylation units and sour gas handling.
- Marine Engineering: Seawater desalination, submarine piping, and offshore platforms.
- Chemical Processing: Handling of fluorides, hydrochloric acid, and sulfuric acid in reducing conditions.
- Power Industry: Specialized feed water treatment and high-pressure steam service.
