Double Thread

Double Head Threaded Pipe Fitting is a pipe fitting with precision threads on both ends, designed for industrial fluid systems to ensure a safe and reliable sealing connection. It is made of 304/316 stainless steel or carbon steel, corrosion-resistant and high-pressure-resistant, and is suitable for chemical, food, pharmaceutical, energy and other industries.

Core Advantage
Dual-end thread design: both ends are standard internal or external threads (G/BSPT/NPT), adapting to a variety of pipeline connection needs.
High-strength material: 304/316 stainless steel, carbon steel optional, corrosion-resistant, high temperature (-20 ℃ ~ +300 ℃).
Zero-leakage sealing: precision threads with PTFE sealing tape, compliant with ISO 5208 standard, bearing pressure up to 16MPa.
Quick Installation: no welding, direct thread tightening, saving 90% of installation time, suitable for high altitude or explosion-proof environments.
Global certification: ISO 9001, FDA/EC1935 (sanitary), meet the requirements of European and American market access.

1. Technical parameters

Parameter items
Standard configuration
Extended options
Materials
304/316 Stainless Steel 
316L (Medical Grade), Carbon Steel (Industrial) 
Thread Standards
G (BSPP), R (BSPT), NPT (American Standard) 
Customized Special Threads (e.g., UNF)
Pressure Levels
 PN16 (Standard)
PN25/PN40 (High-Pressure) 
Temperature Range
-20℃~ +200℃
+300℃ (autoclave type)
Surface Finish
Mirror Polished (Ra≤0.8μm)
Nickel Plated/Sandblasted (Scratch Resistant) 
Certification Standards
 ISO 9001, FDA 
3-A, ASME BPE (Bio-Pharmaceutical)

2. Industry Applications

- Chemical/Petroleum: Acid and alkali resistant, high pressure resistant, suitable for petroleum pipelines, chemical delivery.

- Food & Beverage: Sanitary polished, FDA compliant, for CIP cleaning system, dairy piping.

- Pharmaceutical/Bioengineering: 316L material, no dead-end design, meet GMP aseptic requirements.

- HVAC/Energy: high temperature steam resistant, suitable for boiler, heat exchanger piping connection.


3. Customized service

- Special threads: BSP, NPT, metric threads and other customized processing.

- Material upgrade: 316L, titanium alloy, Hastelloy and other corrosion-resistant materials.

- Surface treatment: electrolytic polishing, nickel plating, PTFE coating, etc.

- Extreme working conditions: deep cold (-50℃), high pressure (PN40), food grade certification.

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales will contact you within 24 hours. Thank you for your interest in our products.

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