2 THE HEAT PRESERVATION PLUG VALVES
Product Model:BX43W
Nominal Diameter:20-300mm
Nominal Pressure:1.0MPa
Suitable temperature:-29°C-425°
suitable Medium:Nitric acid kind of
2-WAY HEAT PRESERVATION PLUG VALVES
Optimized for China Manufacturing Network & Global Chemical Industry Buyers
Product Overview
The BX43W 2-Way Heat Preservation Plug Valve is a specialized valve designed for corrosive and high-temperature media in chemical, petrochemical, and pharmaceutical industries. Its integrated thermal insulation jacket maintains process temperature stability, while the nitric acid-resistant construction ensures longevity in aggressive environments.
For Engineers & Chemical Plant Operators
Key Technical Features
Feature |
Details |
Thermal Insulation |
Full-jacket design with steam/hot oil tracing |
Material |
Body: 316L Stainless Steel |
Pressure Rating |
1.0 MPa (10 Bar) @ 425°C (PN16 Class) |
Temperature Range |
-29°C to 425°C (-20°F to 797°F) |
End Connection |
Flanged (ANSI B16.5), Welded (ASME B31.3) |
NACE Compliance |
NACE MR0103 (Sulfur Stress Cracking Resistant) |
Performance Highlights
- Corrosion Resistance:
- Alloy C-276 plug and 316L body resist nitric acid (HNO3) concentrations up to 70%.
- Electropolished internal surfaces (Ra ≤ 0.4μm) minimize contamination risks.
- Precision Temperature Control:
- Insulation jacket reduces heat loss by 60% vs. standard valves.
- Optional electric tracing for automated temperature maintenance.
- Zero Leakage:
- Metal-to-metal secondary seal (API 607 fire-safe).
- Dual graphite/PTFE gaskets for dual containment.
For Procurement & Safety Managers
Quality & Compliance
- Certifications:
- ATEX Zone 1/21 (Explosion-Proof), SIL 3 (IEC 61508), PED 2014/68/EU.
- 3.1 Material Certificates for critical components.
- Testing:
- 100% helium leak test (1×10-9 mbar·l/s).
- Cyclic endurance test: 10,000 cycles @ 425°C.
Why Choose BX43W?
- Safety: Anti-static device prevents sparking in flammable environments.
- Traceability: Laser-etched serial numbers for material/process audits.
- Warranty: 36-month warranty against manufacturing defects.
For Distributors & EPC Contractors
Commercial Advantages
- Global Approvals: Pre-approved for use in EU, North America, and GCC countries.
- Packaging: Export-grade wooden crates with vacuum-sealed anti-corrosion coating.
- Lead Times: 15-25 days for standard sizes; 45 days for custom alloys.
Customization Options
- Actuation: Pneumatic (NAMUR interface) or hydraulic actuators with limit switches.
- Coatings: FEP/PFA lining for HF acid resistance.







