Specification

TIANYU Electric-Actuated Globe Valve with Manual Override – Flanged Stainless Steel Valve for Precise Industrial Flow Control

I. Product Overview

TIANYU electric-actuated globe valve with manual override is a dual-operation industrial valve engineered for precise flow control and shutoff in critical pipelines. Featuring a stainless steel globe-style body, it integrates an electric actuator for automated process control with a manual handwheel for backup or local operation. Compliant with industrial standards (DIN, ASME), this valve ensures reliable performance in applications involving water, steam, oil, and mild chemicals—ideal for petroleum, chemical processing, power generation, and municipal systems where automation and fail-safe manual control are essential.

II. Key Attributes and Specification Parameters

Basic Attributes

Structure Design: Globe valve with a straight-through flow path; the disc seals against the seat for flow regulation. Combines an electric actuator (rotary or linear motion) with a manual handwheel for dual operation.
Body Material: Stainless steel (304/316) for corrosion resistance in aggressive media; optional cast steel (WCB) for general industrial use.
Sealing System: Metal-to-metal sealing (hardened alloy seats) for high-temperature durability or soft sealing (PTFE) for bubble-tight shutoff. Flexible graphite packing prevents stem leakage.
Pressure Rating: PN16 to PN100, Class 150 to Class 600, suitable for low to high-pressure systems.
Temperature Range: -29℃ to 425℃ (stainless steel), accommodating cryogenic to high-temperature media like steam or hot oil.
Nominal Diameter Range: DN15 to DN300, covering diverse pipeline sizes.
Connection Type: RF flange per ASME B16.5 or DIN EN 1092-1, ensuring compatibility with global pipelines.
Operation Mode: Electric actuation (AC/DC power, with control modules for position feedback) and manual handwheel override for emergency or maintenance use.
Media Compatibility: Water, steam, oil, gas, and mild chemicals; stainless steel variants suit corrosive media.
Design Standards: Complies with ASME B16.34, DIN EN 12266, and API 600, meeting international quality norms.

Product Overview

III. Product Features

TIANYU electric-actuated globe valve with manual override merges automation and reliability:

Dual Operation Flexibility: Electric actuator enables remote, automated control (integrated into SCADA systems), while the manual handwheel ensures operation during power failure or maintenance—critical for safety in process industries.
Precise Flow Control: The globe valve’s disc-and-seat geometry, combined with electric actuator precision (±1% position accuracy), allows fine-tuned flow regulation for processes like steam pressure control in power plants.
Corrosion Resistance: Stainless steel construction resists pitting, crevice corrosion, and chemical attack, extending service life in harsh environments (e.g., coastal or chemical plants).
Visual and Digital Monitoring: Electric actuators feature position indicators, status LEDs, and optional digital communication (Modbus, HART) for real-time flow control monitoring.
Easy Maintenance: Bolted bonnet and modular actuator design allow quick access to internal components (disc, seat, packing) and actuator servicing, minimizing downtime.

IV. Manufacturing Process

TIANYU adheres to strict protocols for dual-operation valve production:

Material Validation: Stainless steel/cast steel undergoes chemical analysis and mechanical testing (tensile strength, impact resistance) to meet standards. Actuator components are tested for electrical and mechanical durability.
Precision Machining: Valve bodies, discs, and seats are CNC-machined to tight tolerances for proper sealing. Actuator gears and motors are precision-assembled for smooth motion.
Actuator Integration: Electric actuators are mounted and calibrated to match the valve’s torque requirements, with manual handwheel gearing optimized for low-torque override.
Seal and Packing Installation: Seats are brazed or press-fitted; seals (metal/soft) are installed for uniform contact. Packing glands are pre-compressed to prevent leakage.
Testing and Calibration: Each valve undergoes hydrostatic shell test (1.5×pressure rating), seat leakage test (API 598 Class IV/VI), and actuator function tests (electric operation, manual override, position accuracy).

Valve Details

V. Product Advantages

TIANYU electric-actuated globe valve with manual override offers multifaceted benefits:

Operational Reliability: Dual operation ensures control during power outages or actuator failure, enhancing system uptime in critical applications (e.g., chemical reactors).
Energy and Process Efficiency: Electric actuation enables precise flow modulation, reducing energy waste (e.g., optimizing steam flow in heating systems) and improving process consistency.
Corrosion and Wear Resistance: Stainless steel construction and durable seals resist degradation, lowering maintenance costs over the valve’s lifecycle.
Global Compatibility: Compliance with ASME/DIN standards allows deployment in international projects without custom modifications.
Smart Integration: Electric actuators with digital communication enable integration into Industry 4.0 systems for predictive maintenance and centralized control.

Application

VI. Product Applications

This dual-operation globe valve excels in industries requiring automated control with manual backup:

Petroleum and Gas: Controls oil/gas flow in refineries and pipelines, with electric actuation for process automation and manual override for safety shutdowns.
Chemical Processing: Regulates corrosive or hazardous chemical flow, leveraging stainless steel corrosion resistance and dual operation for safety.
Power Generation: Manages steam flow in boilers and turbines, using electric precision for efficiency and manual control for emergency scenarios.
Municipal Water and Wastewater: Automates water distribution or treatment processes, with manual override for maintenance or power loss events.
HVAC and Building Systems: Modulates hot/cold water flow in large buildings, combining electric efficiency with manual adjustability for system balancing.

TIANYU electric-actuated globe valve with manual override delivers precise, reliable flow control for diverse media. Stainless steel construction, dual operation, and compliance with global standards suit petroleum, chemical, and municipal sectors. Customizable in size, pressure rating, and actuator features to meet specific automated or manual control needs.