Product Overview
TIANYU Electric V-Type Hard Seal Ball Valve: Wear-Resistant Solution for Particle Media Control
I. Technical Overview
II. Core Product Features
(A) V-Shape Hard Seal Shearing Structure
- Wear-Resistant Shearing Design: V-shape cut core with Stellite overlay (HRC60~65) on 304 stainless steel forms a metal hard seal with 2Cr13 nitrided seat, shearing fibers up to 2mm diameter, ideal for slurry and coal ash water;
- Precision Flow Regulation: Equal percentage flow characteristic with 50:1 regulation ratio, enabling linear control within 0~90° rotation, 25% higher accuracy than standard ball valves;
- Low Flow Resistance: Smooth flow path when fully open, resistance coefficient ≤0.9, 35% less pressure loss than globe valves, saving ~8,000kWh annual pumping energy.
(B) High-Strength Material System
| Component | Material | Performance Advantages |
|---|---|---|
| Body | WCB cast steel/316 stainless steel | Tensile ≥485MPa (cast steel), chloride corrosion resistance (316) |
| Core | 304 SS with Stellite overlay | 3x improved erosion resistance, 8-year service life |
| Seat | 2Cr13 nitrided | Surface hardness HRC55~60, wear ≤0.01mm/10,000 cycles |
| Drive Shaft | 17-4PH precipitation hardening SS | Tensile ≥1000MPa, blowout-proof design (ASME B16.34) |
(C) Intelligent Electric Drive System
- Rapid Response: 220VAC motor drive, DN100 opening/closing time ≤15s, supports 4-20mA signal for DCS integration;
- Safety Redundancy: Built-in limit switches and overload protection, manual operation (≤120N·m torque) during power failure;
- Enhanced Protection: Anodized aluminum actuator housing, IP65 protection against water and dust.
III. Key Technical Attributes
| Parameter Category | Specifications | Expansion Options |
|---|---|---|
| Size Range | DN15~DN200 (1/2″~8″) | Custom DN250~DN300 sizes |
| Pressure Rating | PN16 (1.6MPa) | PN25/PN40 high pressure (up to 4.0MPa) |
| Applicable Media | Slurry, coal ash water, ore pulp, fibrous fluids | Acid-alkali media (316L+Hastelloy option) |
| Connection Type | Flange (GB/T 9113/ANSI B16.5) | Welded connection (WNRF) customization |
| Compliance Standards | GB/T 12237, ISO 5208 | API 6D, CE, SIL2 certification (optional) |
IV. Manufacturing Processes & QC
(A) Precision Manufacturing
- Body Forming:
- WCB cast steel via resin sand casting, UT-tested for defects, annealed to relieve stress;
- 316 stainless steel body via centrifugal casting, surface roughness Ra≤12.5μm.
- Core Machining:
- 5-axis CNC machining for V-shape cuts, angle error ≤±0.3°, fit gap with seat ≤0.03mm;
- Stellite overlay aged at high temperature to enhance bonding strength.
- Assembly & Testing:
- 1.5x pressure (2.4MPa) hydrostatic test for 30 minutes without leakage;
- Sampled for 100,000 cycles with ≥95% sealing retention (industry standard: 50,000 cycles).
(B) Quality Certification
- Material Traceability: Batch number management for key components, traceable to heat number and chemical reports;
- Third-Party Inspection: Supports SGS, BV certification for material, pressure, and sealing;
- System Certification: ISO 9001, CE certified, some models comply with API 598.
Valve Details
VI. TIANYU Customization Advantages
- In-Depth Technical Customization: Non-standard pressure (e.g., PN100), special temperatures (-46℃ cryogenic), explosion-proof actuators (Ex d IIC T6), and non-standard flanges (DIN/GOST), with 3D modeling and fluid simulation;
- Rapid Delivery: 15-day standard lead time, 72-hour prototyping for small batches (MOQ 10 units), 24-hour expedited production for emergencies;
- Full-Lifecycle Service: 18-month warranty, 24/7 support from 5 global service centers, lifetime maintenance for actuator cores, with installation training and digital manuals.
Application
V. Application Scenarios
- Power Industry: Ash slag pipeline control in power plants, Stellite core lasts 5 years in 15% solid-content coal ash water;
- Metallurgy & Mining: Ore pulp pipeline on/off and regulation, V-shape shearing reduces maintenance by 60%;
- Chemical & Environmental Protection: Aeration tank inlet control in WWTPs, 316 SS resists chloride corrosion with zero leakage;
- Heating Networks: Circulating water regulation in heat stations, 12% energy saving via equal percentage characteristic.
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