Product Overview

Newway Electric Stainless Steel Flange Butterfly Valve High Temperature Control Ball for Marine Water Gas Oil-General

Newway electric stainless steel flange butterfly valve is specially developed for industrial automation fluid control scenarios. With advanced design concepts and exquisite manufacturing processes, it provides stable and reliable fluid transportation solutions for industries such as petrochemical, water supply/drainage, food, and medicine. From the core structure to performance, this product demonstrates deep adaptation to strict industrial requirements.

I. Analysis of Core Product Features

(A) Double Eccentric Sealing Structure Design

Newway butterfly valve adopts a double eccentric design, where the rotation center of the disc is offset from both the pipeline center and the sealing surface center. This structure makes the disc disengage from the seat instantly during opening, reducing friction and wear. During closing, as the angle changes, the disc gradually compresses the sealing surface to achieve zero-leakage sealing. Tested at PN16 pressure, the leakage rate is below 1×10⁻¹⁰m³/s, meeting the API 598 Class VI sealing standard, suitable for high-demand media control such as flammable and explosive substances.

(B) All-Stainless Steel Material System

(C) Intelligent Electric Drive System

Precision Control: Standard intelligent electric actuator supports 4-20mA signal input, with positioning accuracy of ±1%, enabling precise adjustment of valve opening.

Rapid Response: Full-stroke opening/closing time for DN100 specification ≤12 seconds, adapting to the fast response needs of automation control systems.

Safety Protection: Actuator protection class IP67, built-in overload protection and overheat protection, suitable for harsh environments like humidity and dust.

II. Key Technical Attributes

III. Precision Manufacturing Processes and Quality Control

(A) Manufacturing Process Analysis

Body Molding: Adopts precision casting process. After investment casting of 304/316 stainless steel, ultrasonic testing (UT) is performed to eliminate internal shrinkage cavities, pores, and other defects. High-temperature annealing relieves internal stress to ensure uniform body strength.

Disc Processing: The disc is ground by a five-axis CNC machining center, with the sealing surface flatness error ≤0.02mm and surface roughness Ra≤0.8μm. Surface chrome plating (thickness ≥15μm) enhances wear and corrosion resistance.

Assembly and Testing: Assembled in a dust-free workshop to ensure internal cleanliness. Each valve undergoes a 1.5x nominal pressure (2.4MPa) hydrostatic strength test (holding pressure for 30 minutes), a 1.1x air pressure seal test (leakage rate detection), and a sampling of 50,000 opening/closing life tests.

(B) Quality Assurance System

Material Traceability: Batch numbers of key components can be traced to heat numbers and chemical composition reports, supporting third-party PMI material testing.

Third-Party Certification: Can provide (pressure resistance), sealing, and corrosion resistance test reports from institutions such as SGS and BV.

System Certification: Certified by ISO 9001 quality management system, and high-pressure models comply with API 609 standards.