Beschreibung

High-Temperature Alloy Steel Gate Valve for Power Plant & Industrial Service

Der Bolt Bonnet Gate Valve ASTM A216 WC6 30 Inch Class 300 RF End is engineered for high-temperature and medium-to-high pressure applications in power generation, petrochemical, refinery, and industrial processing systems. Manufactured from ASTM A217 WC6 chrome-moly alloy steel (commonly specified for elevated temperature service), this valve provides excellent mechanical strength, thermal stability, and long-term reliability under demanding operating conditions.

Designed in accordance with API 600 Und ASME B16.34, the valve features a robust bolted bonnet construction, 30-inch (DN750) size, ASME Class 300 pressure rating, Und Raised Face (RF) flanged ends.

The gate valve design offers full-port flow with minimal pressure drop, making it ideal for isolation service in critical pipeline systems.

Product Features

ASTM A217 WC6 Alloy Steel Construction

WC6 is a chromium-molybdenum alloy steel widely used in high-temperature service.

Advantages include:

• Excellent creep resistance
• High-temperature strength
• Good thermal fatigue resistance
• Long service life
• Suitable for steam and thermal fluid applications

Bolted Bonnet Design

The bolted bonnet construction provides:

• Easy maintenance
• Reliable sealing performance
• Simplified inspection procedures
• Cost-effective servicing

This design is commonly used in Class 150 to Class 600 valve applications.

Full-Port Flow Path

When fully open, the gate moves completely out of the flow stream.

Benefits include:

• Minimal pressure loss
• Maximum flow efficiency
• Reduced turbulence
• Lower energy consumption

Renewable Seat Rings

Replaceable seat rings help:

• Extend valve life
• Reduce maintenance costs
• Improve long-term reliability

Technische Spezifikationen

Why Choose WC6 Alloy Steel?

Superior High-Temperature Performance

WC6 material is commonly selected for:

• Main steam lines
• Boiler systems
• Turbine applications
• Thermal oil systems

because of its ability to maintain strength at elevated temperatures.

Excellent Creep Resistance

The chromium-molybdenum composition provides long-term stability during continuous operation under heat and pressure.

Improved Oxidation Resistance

Compared with standard carbon steel valves, WC6 offers enhanced resistance to high-temperature oxidation.

Reduced Maintenance Costs

The material’s durability contributes to:

• Longer service intervals
• Reduced downtime
• Lower lifecycle costs

Anwendungen

Thermal Power Plants

5

Commonly used in:

• Main steam pipelines
• Reheat steam systems
• Boiler auxiliary systems
• Turbine isolation service

Petrochemical Industry

Suitable for:

• High-temperature process lines
• Hydrocarbon processing
• Utility systems
• Heat transfer applications

Oil & Gas Facilities

Used in:

• Refinery process units
• Thermal oil systems
• Utility steam systems
• Pipeline isolation

Industrial Processing Plants

Ideal for:

• Chemical plants
• Fertilizer facilities
• Pulp and paper mills
• Steel manufacturing

Working Principle

The gate valve operates through a linear-motion gate mechanism.

Opening

1. Handwheel or gearbox is operated.
2. Stem raises vertically.
3. Gate lifts completely from the flow path.
4. Full flow capacity is achieved.

Closing

1. Stem lowers the gate.
2. Gate contacts both seat rings.
3. Tight shutoff is achieved.
4. Flow is fully isolated.

Because the gate moves completely out of the flow stream when open, pressure loss remains extremely low.

Quality Assurance & Testing

Every valve undergoes comprehensive quality control procedures.

Standard Testing

• Hydrostatic Shell Test
• Seat Leakage Test
• Backseat Test
• Material PMI Verification
• Dimensional Inspection
• Functional Operation Test

Testing is performed according to:

• API 598
• MSS SP-61

Optional Configurations

Actuation Options

• Electric Actuator
• Pneumatic Actuator
• Hydraulic Actuator
• Bevel Gear Operator

Special Trim Options

• API Trim 5
• API Trim 8
• API Trim 10
• Stellite Hard-Faced Trim

Additional Standards Available

• NACE MR0175 Sour Service
• Feuersicheres Design
• Low Emission Packing
• Extended Bonnet Design

Documentation Available

We can provide:

✅ Product Datasheet
✅ General Arrangement Drawing
✅ Material Test Certificate (EN 10204 3.1)
✅ Hydrostatic Test Report
✅ Inspection Report
✅ Installation Manual
✅ Operation & Maintenance Manual

Frequently Asked Questions

What is ASTM A217 WC6?

ASTM A217 WC6 is a chromium-molybdenum alloy steel designed for elevated temperature and pressure service.

Why choose a bolted bonnet gate valve?

Bolted bonnet valves provide easy maintenance access and are widely used in Class 150–600 applications.

What industries commonly use WC6 gate valves?

Typical industries include:

• Power Generation
• Petrochemie
• Refining
• Chemical Processing
• Industrial Steam Systems

Is the valve suitable for steam service?

Yes. WC6 alloy steel is specifically designed for high-temperature steam applications.

Can the valve be automated?

Yes. Electric, pneumatic, and hydraulic actuators are available upon request.

Related Products

• WC9 Gate Valve
• F11 Gate Valve
• F22 Gate Valve
• F91 Gate Valve
• Druckverschlussschieber
• API 600 Durchgangsventil
• High Temperature Check Valve

Request a Quote

Looking for a Reliable WC6 Gate Valve Manufacturer?

We offer:

✅ Factory Direct Pricing
✅ Fast Production Lead Times
✅ OEM & Private Label Services
✅ Third-Party Inspection Support
✅ Worldwide Export Experience
✅ Complete Technical Documentation

Send Your Inquiry Today

Please provide:

• Valve Size (30 Inch / DN750)
• Betriebstemperatur
• Arbeitsdruck
• Media Type
• Quantity Required
• Project Specification

Our engineering team will respond with a detailed quotation, datasheet, and delivery schedule within 24 hours.

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