Product Overview

Newway Flange Floating Ball Valve: High-Reliability Solution for Industrial Fluid Control

I. Technical Overview

Newway flange floating ball valve adopts a dual-material system of WCB cast steel and CF8 stainless steel (304), covering DN15~DN200 (1/2″~8″) with nominal pressure PN16~PN100 (1.6~10.0MPa). Operating from -196℃~550℃, it suits water, steam, oil, natural gas, and other media. The floating ball structure pushes the ball against the seat via medium pressure for bidirectional bubble-tight sealing, widely used in petrochemical, power, metallurgy, and building water systems for on/off and regulation. It supports manual, electric, and pneumatic drives for diverse automation needs.

II. Core Product Features

(A) Floating Ball Sealing Design

Bidirectional Self-Sealing Mechanism: The ball moves toward the outlet seat under medium pressure for dynamic sealing, with leakage ≤1×10⁻¹⁰m³/s (API 598 Class IV), ideal for flammable media;

Low Flow Resistance: Full-bore design with resistance coefficient ≤0.8, reducing pressure loss by 40% vs. globe valves, saving ~15,000kWh annual pumping energy;

Self-Cleaning Structure: Polished ball surface (Ra≤0.8μm) minimizes medium deposition, suitable for fluids with trace particles.

(B) High-Strength Material System

(C) Multi-Scenario Adaptability

Wide Temperature Range: Full coverage from -196℃ (liquid nitrogen) to 550℃ (superheated steam) via material combinations; cryogenic types require deep cold treatment (impact energy ≥27J at -196℃);

Strong Pressure Adaptability: PN16~PN100 full range, high-pressure (PN100) passes 15.0MPa strength test leak-free;

Flexible Drives: Manual torque ≤80N·m (DN100), electric actuator response ≤15s, pneumatic actuator supports 5s quick shut-off.

III. Key Technical Attributes

IV. Manufacturing Processes & QC

(A) Precision Manufacturing

Body Forming:

WCB cast steel via resin sand casting, UT-tested for defects, annealed to relieve stress;

CF8 stainless steel via centrifugal casting, surface roughness Ra≤12.5μm, burr-free flow path.

Ball Machining:

5-axis CNC grinding for ball roundness error ≤0.003mm, fit gap with seat ≤0.01mm;

Metal seat overlaid with Inconel alloy, aged at high temperature to HRC60-65.

Assembly & Testing:

1.5x nominal pressure hydrostatic test (30-min hold), 1.1x air pressure seal test (helium detection leakage ≤5×10⁻⁹Pa·m³/s);

Sampled for 100,000 cycles with ≥95% sealing retention (industry: 50,000 cycles).

(B) Quality Certification

Material Traceability: Batch numbers for key components traceable to heat number and chemical reports (PMI testing);

Third-Party Inspection: Supports SGS, BV certification for material, pressure, and sealing;

System Certification: ISO 9001, CE certified, high-pressure models comply with API 6D.

Application

V. Application Scenarios

Petrochemical: On/off for atmospheric tower in refineries, CF8 lasts >10 years in 200℃ gasoline;

Power Energy: Steam pipeline (3.8MPa/450℃) flow control, metal hard seal ensures zero leakage;

LNG: -162℃ cryogenic pipeline on/off, WCB with deep cold treatment resists low-temperature embrittlement;

Building Water Supply: PN16 fire protection pipelines in high-rises, easy manual maintenance.

VI. Newway Customization Advantages

Newway provides end-to-end customization based on 20 years of valve expertise and Shandong’s smart manufacturing:

In-Depth Technical Customization: Non-standard pressure (e.g., PN250), special temperatures (-196℃~650℃), explosion-proof drives (Ex d IIC T6), and non-standard flanges (DIN/GOST), with 3D modeling and fluid simulation;

Rapid Delivery: 7-day standard lead time (≤5,000 units), 3-day prototyping for small batches (MOQ 50), 24-hour expedited channel for urgent orders;

Global Service Network: 12-month warranty, 24/7 response from 3 major service centers (APAC/Europe/NA), 48-hour airfreight for spares, with installation training and digital manuals.