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321 Titanium Stabilized PN25 RF Plate Flange High Temperature Steam Thermal Oil Pipeline Fitting
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321 Titanium Stabilized PN25 RF Plate Flange High Temperature Steam Thermal Oil Pipeline Fitting

Production Standard:CE.ISO9001.ISO45001. ISO14001.ASME B16.9 .GOST.TS2733E31-2022.EN 10253. JIS B2311
Material:Stainless steel:304 .304L, 306.306L,309S,310S,316.316L, 321.F321.347.F347
Precision Dimensions: Our advanced CNC systems handle diameters from DN 15 to DN 4000 with micron-level accuracy.
Availability:
Quantity:
  • PL Flange

  • SDFL

321 Titanium Stabilized PN25 RF Plate Flange High Temperature Steam Thermal Oil Pipeline Fitting321 Titanium Stabilized PN25 RF Plate Flange High Temperature Steam Thermal Oil Pipeline Fitting321 Titanium Stabilized PN25 RF Plate Flange High Temperature Steam Thermal Oil Pipeline Fitting

GB/T9119 F321 PN25 RF Plate Flange is a professional high-temperature resistant flat weld flange stabilized by titanium elements, specially developed for boiler steam, thermal oil and central heating high-temperature circulating pipelines. Ordinary 304/316 plate flanges are prone to thermal fatigue cracking, scaling and deformation under long-term high-temperature alternating working conditions, while F321 titanium stabilization process eliminates high-temperature grain precipitation defects and greatly improves high-temperature structural stability.
PN25 (2.5MPa) medium-high pressure rating adapts to 300℃ long-term high-temperature medium circulation working conditions. The integral stamped thickened plate structure has excellent thermal fatigue resistance, no deformation or bolt hole dislocation under high-temperature thermal expansion and contraction cycles. Professional high-temperature passivation treatment prevents surface oxidation scaling and sealing surface carbon deposition, ensuring smooth medium circulation and stable sealing performance of high-temperature pipelines. Precision dimensional calibration eliminates thermal deformation errors under high-temperature working conditions.
Core Selling Points
  1. Titanium stabilized treatment, anti-thermal fatigue cracking under long-term high temperature cycles;

  2. Excellent high-temperature oxidation resistance, no surface scaling or carbon deposition;

  3. PN25 medium-high pressure resistance, stable under high temperature and pressure coupling conditions;

  4. Thickened plate body structure, strong rigidity and anti-deformation in thermal cycle working conditions;

  5. No high-temperature seizure failure, convenient for later pipeline maintenance and disassembly;

  6. Stable sealing performance, no leakage of high-temperature steam and thermal oil media;

  7. Long service life, reduce high-temperature pipeline frequent replacement cost.


Full Available Materials: F321, F310S, F316, F304, F316L high-temperature resistant stainless steel
Applicable Industries: Thermal power auxiliary piping, boiler steam systems, central heating engineering, thermal oil circulation equipment, high-temperature industrial process pipelines, heat exchange equipment piping
Why Choose Us
We are a professional manufacturer of high-temperature resistant stainless steel flanges, equipped with independent high-temperature pressure resistance testing equipment. All F321 products undergo professional titanium stabilization heat treatment to ensure high-temperature fatigue resistance. Strict high-temperature size calibration eliminates thermal deformation errors. Provide exclusive high-temperature working condition warranty and complete test reports, long-term stable supply for thermal power, heating and high-temperature process engineering projects.
Customization Capabilities (8 Items)
  1. High-temperature titanium stabilization heat treatment customization;

  2.  High-temperature thermal expansion gap precise adjustment;

  3. High-temperature anti-scaling and anti-carbon deposition surface treatment;

  4. PN25/PN40 high-pressure high-temperature structural reinforcement;

  5. High-temperature resistant fade-proof laser marking and engraving;

  6. High-temperature pipeline special thickened plate body processing;

  7. High-temperature heat-resistant protective packaging for long-distance transportation;

  8. Customized high-temperature pressure resistance performance test report.


FAQ

1:How long is the custom lead time for stainless steel flanges in Wenzhou?

— 8 to 10 working days

2:What is the fastest delivery time?

— 3 working days

3:Do you support non-standard custom flanges?

— Yes, we do.

4:Can you process special sizes?

— Yes. Max processing size: 4000 mm, Min processing size: 30 mm.

5:Do you have stainless steel flanges of standard sizes in stock?

— Yes.

6:Can we customize flanges based on customer drawings or samples?

— Yes.

7:Will material test certificates and inspection reports be provided for the purchased flanges?

— Yes, they will.

8:Is there a quality warranty for the flange products?

— Yes.

9:How to handle quality defects if they occur?

— Product return and exchange available.

10: Which plate flange is suitable for high-temperature steam pipelines? 

—F321 titanium stabilized plate flange is specially designed for high-temperature thermal cycle pipelines, with outstanding anti-fatigue and anti-scaling performance, avoiding high-temperature deformation and cracking.




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