Industry 6" 600LB BS1873 Cast Steel WCB Flange Bevel Gear Globe Valve

The API600 Flange Bevel Gear Operated Globe Valve is a high-performance industrial valve designed for demanding applications, compliant with API 600 standard (Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries). It is ideal for industrial systems requiring high-pressure, high-temperature, or large-diameter flow control. Featuring a bevel gear mechanism, it significantly reduces operating torque, making it particularly suitable for large valves where manual operation is challenging.

1. Certifications & Standards

2. Bevel Gear Operating System

3. Key Structural Features

1. Basic Parameters

IV. Typical Applications

·  Wellhead equipment: Christmas tree master valves, wing valves

·  Pipeline systems: Station isolation valves, pigging valves

·  LNG terminals: BOG compressor inlet/outlet valves

·  Supercritical units: Boiler feedwater control valves

·  Turbine systems: Main steam isolation valves

·  Nuclear plants: ASME Section III-certified valves

Ethylene cracking: Quench oil system valves

Ammonia synthesis: High-pressure reactor inlet/outlet valves

PTA plants: Acetic acid medium control valves

1. Manufacturing & Inspection Process

Material Verification: PMI testing + mechanical property tests

Machining Precision: CNC machining (±0.02mm tolerance)

Welding Process: ASME Section IX qualified, 100% RT inspection

Assembly Testing:

Shell test: 1.5x rated pressure

Seat test: API 598 Class IV

Torque test: Records full open/close torque curve

Q2: Bevel gear vs. worm gear comparison?
A2: Bevel gears offer higher efficiency (98% vs. 70%), but worm gears allow greater reduction ratios.

Q3: When to choose gear operation?
A3: Recommended when handwheel torque exceeds 150N·m (typically valves ≥DN200).