سه راه رزوه استنلس استیل 304 - کلاس ۱۵۰

Screw Tee NPT 304 – 150 LBS | Stainless Steel Threaded Tee – Made in Iran

Product Overview

The Stainless Steel 304 Threaded Tee Class 150 is a widely used fitting in piping systems for industrial sectors such as food processing, pharmaceuticals, petrochemicals, and general utilities. This fitting is produced in Iran, using precision casting and CNC-threading, ensuring accurate dimensions and reliable performance.

It is available in sizes from 1/8” to 4”, with NPT threads up to 2” and BSPT threads for larger sizes.

Technical Specifications

• Material: Stainless Steel 304 (AISI 304)

• Manufacturing Method: Investment Casting + CNC Threading

• Thread Type:

  • Up to 2": NPT (National Pipe Thread)

  • Above 2": BSPT (British Standard Pipe Tapered)

• Size Range: 1/8” to 4”

• Working Pressure: 150 LBS (~10 bar)

• Country of Manufacture: Iran

• Standards:

  • Thread: ANSI B1.20.1 (NPT) / ISO 7-1 (BSPT)

  • Fitting Body: ASME B16.3

NPT vs BSPT Thread – What’s the Difference?

• NPT (National Pipe Taper):

  • Standard in North America

  • Tapered threads with a 60° angle

  • Sealing primarily by thread interference

• BSPT (British Standard Pipe Taper):

  • Commonly used in Europe and Asia

  • Tapered threads with a 55° angle

  • Requires proper mating threads for leak-proof connection

🛑 Important: NPT and BSPT threads are not interchangeable due to different thread angles and profiles.

Advantages of Stainless Steel 304

• Excellent general corrosion resistance

• Good strength and durability

• Oxidation resistance up to ~870°C

• Easy to weld and fabricate

• Cost-effective compared to SS316

Chemical Composition of SS304

Suitable Fluids for SS304

• Water and steam

• Compressed air

• Light oils and lubricants

• Non-corrosive gases

• Food-grade liquids

Fluids to Avoid with SS304

• Chloride-rich environments (e.g., seawater, brine)

• Strong acids (e.g., concentrated sulfuric or nitric acid)

• Highly corrosive industrial chemicals under high temperature/pressure

Pressure and Temperature Ratings

What Does 150 LBS Mean?

Class 150 refers to the pressure rating of the fitting, approximately 150 PSI at ambient temperature (~10 bar). It indicates suitability for low-to-medium pressure systems used in general industrial applications.

Frequently Asked Questions (FAQ)

1. Can I use this fitting for seawater?
No. SS304 is not resistant to chloride-rich environments like seawater. SS316 is recommended for such applications.

2. Is it okay to mix NPT and BSPT threads?
No. These threads have different angles (NPT: 60°, BSPT: 55°) and are not compatible.

3. Is this fitting suitable for steam applications?
Yes, SS304 can handle steam at moderate pressure and temperature. Make sure the conditions are non-corrosive.

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📞 Phone Numbers (Bold for visibility):
021-33939659
021-33922432

📍 Visit Us: Google Maps Location – Bonyad Steel
Address: Tehran, North Khayyam St., Opposite Park-e-Shahr, Grand Khayyam Mall, 1st Floor, Unit 180.

🛒 Screw Tee Stainless Steel 304 – Class 150 is listed on Torob marketplace
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