Tube Fittings
Double Ferrules Male Brunch Tee
Stark male branch tee for creating secure 90° branches from a tube run to a male-threaded port. Forged 316SS, Swagelok & Parker compatible. Ideal for instrument take-offs & sampling points. 24h quote!
Double Ferrules Male Branch Tee Fitting: 90° High-Integrity Branch Connector
Create a secure, 90° branch line from a main tube run. The Stark Double Ferrules Male Branch Tee is engineered to tap into a continuous tube line and direct flow to a male-threaded component, such as a gauge, sensor, or drain valve. Its one-piece forged 316/316L stainless steel body provides maximum strength and eliminates the need for welding or cutting the main line, ensuring a reliable, leak-free take-off point.
✓ One-Piece Forged Body| ✓ Reduces System Stress| ✓ Zero-Leak Performance Guarantee
🔧 Find Your Tee Size in 3 Clicks
1. Select Main Tube O.D.:○ 1/4" ○ 1/2" ○ 6mm ○ 12mm ...
2. Select Branch Thread Type:○ NPT ○ BSPT ○ SAE/UNF ...
🔥 Most Popular Sizes (In Stock - Same Day Shipping)
1/2" Tube x 1/4" NPT | 1/2" Tube x 1/2" NPT | 12mm Tube x 1/4" NPT | 12mm Tube x 1/2" NPT |
SS-MBT-FT8-MN4 | SS-MBT-FT8-MN8 | SS-MBT-MT12-MN4 | SS-MBT-MT12-MN8 |
Part Number Format: [Material]-MBT-[Tube Size]-[Thread Size] (e.g., INC625-MBT-FT8-MN4)
(MBT = Male Branch Tee)
(FT / MT = Sizing System (Fractional Tube / Metric Tube))
🛠 The Engineering Advantage
- Superior Strength with One-Piece Forging: Unlike fabricated tees, our monolithic forged body provides a continuous grain structure, offering the highest resistance to the combined stresses of system pressure and the cantilevered load of an instrument.
- Reduces Pipe Stress: By creating a branch directly on the tube run, our male branch tee eliminates the need for additional fittings and bends, reducing potential stress concentrations and improving the overall layout of your system.
- Guaranteed Interchangeability: Fully compatible with Swagelok® and Parker A-LOK® male branch tees, allowing for confident MRO replacements and seamless integration into existing systems without compromising performance.
- Reliable Reassembly with Anti-Galling Nuts: Every tube-side nut is internally silver-plated as a standard feature. This prevents thread seizing (galling) and ensures the tube connections can be reliably disassembled and reassembled 20+ timesfor maintenance.
📈 Technical Specifications
Feature | Stark Standard Specification | Optional Advanced Upgrades |
Body Material | Forged316/316L Stainless Steel | Duplex 2205, Super Duplex 2507, Inconel 625, Hastelloy C276, Monel 400, etc. |
Thread Types | NPT, BSPT (ISO 7/1), BSPP (ISO 228/1), SAE/UNF | Custom thread configurations |
Pressure Rating | Up to 10,000 PSI (689 bar) | Custom High-Pressure Configurations |
Testing | 100% Pneumatic Tested at 1.1x WP | Helium Leak Testing (1 x 10⁻⁹ sccs) |
Compliance | MTR to EN 10204 3.1 & PMI Verified | NACE MR0175 / NORSOK M-650 |
🎯 Why Choose a Stark Male Branch Tee? A Head-to-Head Comparison
Feature | Using a Welded Boss + Valve | Using One Stark Male Branch Tee |
Installation | ⚠️ Requires welding, hot work permit, NDT | ✅ Cold Installation, Fast & Safe |
Potential Leak Paths | ⚠️ 3 (2 weld, 1 thread) | ✅ 2 (1 tube, 1 thread) - Reduced Risk |
System Downtime | ❌ High (Requires line shutdown & purging) | ✅ Low (Can often be installed on live sections) |
Flexibility | ❌ Permanent, difficult to modify | ✅ Can be repositioned or removed |
📌 Targeted Application Support
- Instrument Take-Offs: The primary application for adding pressure gauges, temperature probes, and transmitters to an existing process line.
- Sampling Points: Create a secure, accessible point to draw fluid or gas samples for analysis without interrupting the main flow.
- Drain & Vent Lines: Used with a male-threaded ball valve or needle valve to create a drain or vent point on a main header.
- Chemical Injection Points: Provides a robust connection for injecting additives, inhibitors, or dyes into a process stream.
❓ Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a male branch tee over welding a connection?
The main advantage is safety and speed. A male branch tee is a "cold work" solution, meaning it can be installed without welding, eliminating the need for hot work permits and system shutdowns. It's faster, safer, and reduces the number of potential leak points compared to a welded connection.
Q2: Can this fitting be installed on a pressurized line?
No.Like all compression fittings, the system must be fully depressurized and drained before cutting the tube and installing the fitting.
Q3: Do I need to cut the main tube to install this tee?
Yes.The male branch tee is designed to be installed on a cut section of tubing. The main tube run passes through the two opposing ports of the tee.
Q4: How do you ensure the branch is perfectly at 90 degrees?
Our one-piece forged body is machined in a single setup on high-precision CNC equipment. This guarantees that the branch port is perfectly perpendicular to the main tube run, ensuring a stress-free and accurate installation for your instruments.
📦 Complete Size & Cross-Reference Chart
💬 Still Have Questions?
Our engineering team is ready to assist with technical selection, system design, or material recommendations.
🔒 Disclaimer
Swagelok® and Parker A-LOK® are registered trademarks of their respective holders. Stark is not affiliated with, endorsed by, or sponsored by these companies. Part numbers and brand names are provided for cross-reference and compatibility purposes only.