Product Range – Stainless Steel Double Ferrule Union

Stainless Steel Double Ferrule Union manufacturer, supplier, and exporter in India

Are you looking for superior quality Stainless Steel Double Ferrule Union Fittings exporter and suppliers? Quick delivery and dispatch available.

Stainless Steel Double Ferrule Union
85+
Countries Served
1/16″–1″ / 2–25mm
Size Range
4:1
Safety Factor
304 / 316 / 316L
Tubing
NPT / BSPT / BSPP
Thread Profiles
01 — Overview

Buy best price high-quality, corrosion resistant Stainless Steel Double Ferrule Union, Stainless Steel Double Ferrule Union Ferrule Fittings, Stainless Steel Double Ferrule Union Compression Fittings, Stainless Steel Stainless Steel Double Ferrule Union Fittings, SS 304 Stainless Steel Double Ferrule Union, SS 316 Stainless Steel Double Ferrule Union Fittings, Stainless Steel Fittings, SS Pipe Fittings, Flanges & Fittings, Forged Fittings from Pioneer Industries recognized for manufacturing quality-tested products using latest manufacturing equipment at International Industry standards.

At Pioneer Industries, we offer these Industrial Stainless Steel Double Ferrule Union having utmost functionality for your required applications. We are a manufacturer, supplier of Stainless Steel Double Ferrule Union and India’s leading Stainless Steel Double Ferrule Union Exporters in Mumbai.

Global Supply

Pioneer Industries manufacturing and exporting high-quality Stainless Steel Double Ferrule Union worldwide.

We are India’s one of the leading Stainless Steel Double Ferrule Union manufacturers and exporters to more than 85 countries exporting and manufacturing on a large scale. All size supply maintains a massive inventory of Stainless Steel Double Ferrule Union, with all standard sizes and numerous styles available.

Stainless Steel Double Ferrule Union is manufactured from high-quality materials that are sourced from trusted and reliable vendors. Most of the Stainless Steel Double Ferrule Union are available in both metric and imperial sizes. Various materials, material grades, and coatings/plating are available. We’ve got the right product for your needs.

To Get Quotes within hour Call Us at 9821023876 or Send Enquiry for the products you requires

02 — Product Detail

Description of Stainless Steel Double Ferrule Union

Stainless Steel Double Ferrule Union is to join tubes of same dimension through a wall or panel.

Material of Construction: Stainless Steel, SS 304, SS 316, etc.

Materials conforming to NACE MR 01-75 is available on specific requests.

Features Stainless Steel Double Ferrule Union:

  • Precision design to withstand high pressure, vibration, impact, vacuum and temperature changes.
  • It is compact and lightweight, no special tools required, and has low tightening torque.
  • Easy assembly compression design, easy to connect and disconnect and economical to reuse.
  • Can be used with 304, 316, or 316 L stainless steel tubing.
  • Precisely contrived threads to ensure reliable and leak-free joints.
  • Provides a leak tight seal for high pressure, vibration, and vacuum in gas or liquid applications.
  • No tube twisting during fitting installation preserving mechanical integrity of tube or pipes.
  • Unique design that allows the front ferrule to create a pressure seal on tube and body.
  • Has a 4: 1 safety factor with respect to the working pressure capabilities of the tubing used.
+ + + +
Specification

Sizes: 1/8″ to 1″ having various connecting thread profiles like NPT, BSPP & BSPT in Branch Connections, Straight Connections, Tee and Cross Connections in Male Thread Connections, Female Thread Connections, Male – Female Thread Connections, etc.

Technical Specifications & Dimensions

Stainless Steel Double Ferrule Union Dimensional Tables

Explore full engineering dimensional configurations for Metric (mm) and Imperial / Fractional (Inch) Stainless Steel Double Ferrule Union. Sourced and manufactured according to ASME B31.3 and international instrumentation standards.

Metric Stainless Steel Double Ferrule Union Dimensions (Tube O.D. 2 mm to 25 mm)
Standard Metric Sizes
Part No.Tube O.D. T mmE mmh mmH mmFGlL
MPU – M 0221.7121212.915.322.435.6
MPU – M 0332.4121212.915.322.135.3
MPU – M 0442.4121213.716.124.137.3
MPU – M 0664.8141415.317.726.241.0
MPU – M 0886.4151616.218.628.243.2
MPU – M 10107.9181917.219.531.046.2
MPU – M 12129.5222222.822.031.051.2
MPU – M 151511.9242524.422.031.852.0
MPU – M 202015.9303226.022.034.855.0
MPU – M 222218.3303226.022.034.855.0
MPU – M 252521.8353831.326.540.465.0
Fractional / Imperial Stainless Steel Double Ferrule Union Dimensions (Tube O.D. 1/16″ to 1″)
Standard Fractional Sizes
Part No.Tube O.D. T inE Minh inH inFGlL
IPU-011/161.2755/168.6310.9117.5025.15
IPU-021/82.287/167/1612.7015.2422.3535.56
IPU-033/163.047/161/213.7116.0024.1337.33
IPU-041/44.821/29/1615.2417.7826.1640.89
IPU-055/166.359/165/816.2518.5428.1942.92
IPU-063/87.115/811/1616.7619.3030.2244.95
IPU-081/210.4113/167/822.8621.8430.9851.30
IPU-105/812.7015/16124.3821.8431.7552.07
IPU-123/415.741-1/161-1/824.3821.8433.2753.59
IPU-147/818.281-3/161-1/425.9021.8435.0555.37
122.351-3/81-1/231.2426.4140.3864.77
Material Grades, Construction & Manufacturing Standards
ASTM / ASME / NACE Certified
Material Group Standard Specification & Codes Available Grades
Austenitic Stainless Steel (300 Series) ASTM A276, ASTM A479, ASME SA479, ASME SA/A403, SA/A774 WP-S, WP-W, WP-WX SS 304 SS 304L SS 304H SS 304LN SS 316 SS 316L SS 316H SS 316LN
Sour Gas (H2S) Service NACE MR0175 / ISO 15156, NACE MR0103 SS 316 / 316L (Hardness ≤ 22 HRC) Super Duplex 2507 Inconel 625 / 825
High Alloys & Exotic Metals ASTM B164, ASTM B564, ASTM B574 Monel 400 Hastelloy C-276 Duplex 2205 Titanium Gr. 2
Thread Types & Standards ANSI/ASME B1.20.1 (NPT), ISO 7/1 (BSPT), ISO 228 (BSPP), SAE J1926 (Straight) NPT Male BSPT Male BSPP Male with O-ring/Washer Metric Male

Customization Available: Looking for something specific? Pioneer Industries manufactures tailor-made Stainless Steel Double Ferrule Union in custom materials, non-standard threads, and high-pressure schedule connections. Contact us at +91 9821023876 or email inquiry@pioneerfitting.com.

03 — Applications

Applications/Uses of Stainless Steel Double Ferrule Union

Stainless Steel Double Ferrule Fittings find use in a variety of industrial applications, including:

01

Oil and gas –

These Fittings find application in processing equipment such as tanks, drilling rigs, and pumps, and used in the oil and gas industries giving stable performance in high stress and corrosive conditions.

02

Building and Construction –

Scaffolding and other support structures requires a variety of these Fittings to safeguard and guarantee the stability of structure during construction.

03

Chemical refining –

In chemical refineries, these Fittings are made using corrosion resistant high performance materials, such as stainless steel, tool alloys, and exotic metals and find use in machineries such as heat exchangers, chemical tanks, and processing systems.

04

Marine –

Fittings installed in the marine industry necessitate excellent corrosion resistance to withstand the extended periods of exposure to saltwater that marine ramps, marine decks, bulkheads, and tanks experience.

05

Automobile and transportation –

Fittings are used to assemble a wide range of vehicles, including commercial vehicles like trucks, passenger vehicles like cars, airplanes, and specialized automobile equipment.

06

Power generation –

Distinctive applications include use in exhaust systems, electrical equipment, motors and pumps, and storage containers. These Fittings for the power generation industry are made of corrosion resistant and high strength materials such as stainless steel, aluminium, copper, nickel alloys, and other steel alloys.

07

Agriculture –

In the agricultural industry, these Fittings are used in field irrigation and filtration systems, and other farming equipment, drying units, buildings, and grain bins.

08

Military –

Military Fittings are manufactured and functionally designed to withstand extreme temperatures, corrosive compounds, and high stress environments and find applications like include equipment motors, heat exchangers, and engines, and processing equipment.

04 — Industries

Applications Industries of Stainless Steel Double Ferrule Union

Pioneer Industries’ Stainless Steel Double Ferrule Union are widely used in numerous industries like:

+ Pharmaceutical Equipment
+ Chemical Equipment
+ Sea Water Equipment
+ Heat Exchangers
+ Condensers
+ Pulp and Paper Industry
+ Power Generation
+ Gas Processing
+ Aerospace Industry
+ Nuclear Energy Sector
+ Off-Shore Oil Drilling
+ Oil & Gas Industries
+ Chemical Industry
+ Petroleum Industries
+ Defence Industry
05 — Range

Types of Stainless Steel Double Ferrule Fittings offered by Pioneer Industries

06 — FAQs

Frequently Asked Questions about Stainless Steel Double Ferrule Union

Answers to the questions buyers, piping engineers, and procurement teams most often ask before sourcing Stainless Steel Double Ferrule Union from Pioneer Industries.

A Stainless Steel Double Ferrule Union is a straight tube-to-tube coupling with identical twin-ferrule compression sockets on both ends. It connects two sections of equal outer diameter fractional or metric tubing without threading, flaring, welding, or brazing, providing a 100% leak-tight fluid path suitable for high-pressure, vacuum, and severe-service chemical environments.
When each coupling nut is tightened 1-1/4 turns from finger-tight, the nut drives the rear ferrule into the front ferrule. The front ferrule is forced into the body's internal 20° cone to create a primary metal-to-metal fluid seal, while the back ferrule rolls inward, colleting and burnishing the tube OD. This dual-ferrule action seals helium tight up to 10,000+ PSI without twisting or weakening the tubing.
Pioneer SS 316/316L Double Ferrule Unions support working pressures up to 10,000 PSI (690 bar) for sizes up to 1/2″ (12 mm) and up to 6,000 PSI for 3/4″ and 1″ sizes, compliant with ASME B31.3 chemical plant piping codes with a minimum 4:1 burst safety factor.
Yes. Pioneer Double Ferrule Unions are engineered for dozens of remakes without sacrificing sealing reliability. Because ferrules are permanently swaged onto the tube end after the first pull-up, reassembly requires inserting the pre-swaged tube end into the body, hand-tightening, and advancing the nut approximately 1/12 to 1/6 of a turn with a wrench.
Pioneer electroplates the internal threads of all union coupling nuts with silver. The silver acts as a clean solid-film dry lubricant, preventing metal-to-metal galling, lowering makeup torque by up to 40%, and ensuring smooth, consistent ferrule advancement.
Pioneer double ferrule unions are engineered for use with high-quality, fully annealed seamless or welded-and-drawn stainless steel tubing (ASTM A269 or ASTM A213) with hardness not exceeding 90 HRB (Rockwell B). Proper annealing ensures ferrules grip without damaging the tube wall.
Yes. Pioneer manufactures double ferrule instrumentation fittings to standardized international geometry. Our components are geometrically compatible with Swagelok, Parker A-LOK, and Gyrolok, allowing complete assemblies to interchange directly into existing instrument racks and skid assemblies.
Yes. Operating temperatures range from cryogenic service at -196°C (-321°F) up to +649°C (+1200°F). Pioneer unions are 100% helium leak tested with leak rates certified below 1 x 10^-9 mbar*l/s, making them ideal for high-vacuum and semiconductor gas lines.
Yes. For upstream oil and gas applications handling wet hydrogen sulfide (H2S), Pioneer supplies unions in solution-annealed SS 316/316L, Super Duplex, and Monel with hardness strictly verified below 22 HRC per NACE MR0175 / ISO 15156.
Every consignment is supplied with an authentic EN 10204 Type 3.1 Inspection Certificate detailing actual chemical heat analysis, mechanical tensile and yield strength, elongation, hardness testing, PMI verification, and hydrostatic pressure testing.
07 — Enquiry

Contact Pioneer Industries experts for detailed information

about your requirement to select the right products for your application needs!

Do you have any questions or need help with our services and products? Submit an Enquiry Form request or Call us at 9821023876. Feel free to get in touch!