GET A QUOTE
Home / Product Range / Stainless Steel Tube Fittings / Stainless Steel Single Ferrule Fittings / Stainless Steel Single Ferrule Female Bulkhead Union
Product Range – Stainless Steel Single Ferrule Female Bulkhead Union

Stainless Steel Single Ferrule Female Bulkhead Union manufacturer, supplier, and exporter in India

Are you looking for superior quality Stainless Steel Single Ferrule Female Bulkhead Union exporter and suppliers? Quick delivery and dispatch available with certified mill test reports.

ENQUIRE NOW WHATSAPP
Stainless Steel Single Ferrule Female Bulkhead Union
85+
Countries Served
1/16″–1″ / 2–25mm
Size Range
4:1
Safety Factor
304 / 316 / 316L
Tubing
DIN 2353 / ISO 8434
Standards
01 — Overview

Buy best price high-quality, corrosion resistant Stainless Steel Single Ferrule Female Bulkhead Union, Single Ferrule Compression Fittings, Single Ferrule Tube Fittings, Stainless Steel Fittings, SS Pipe Fittings from Pioneer Industries recognized for manufacturing quality-tested products using latest manufacturing equipment at International Industry standards.

Stainless Steel Single Ferrule Female Bulkhead Union offers a tight pressure seal and engineered geometry for outstanding resistance to high pressures, dynamic line loads, and mechanical vibration. Designed to provide leak-resistant, secure, and tight connections in demanding industrial fluid applications. At Pioneer Industries, we manufacture precision Stainless Steel Single Ferrule Female Bulkhead Union with utmost reliability for your instrumentation requirements.

Global Supply

Pioneer Industries manufacturing and exporting high-quality Stainless Steel Single Ferrule Female Bulkhead Union worldwide.

We are India’s one of the leading Stainless Steel Single Ferrule Female Bulkhead 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 Single Ferrule Female Bulkhead Union, with all standard sizes and numerous connection styles available.

Stainless Steel Single Ferrule Female Bulkhead Union is manufactured from high-grade raw materials sourced from trusted and reliable mills. Most Stainless Steel Single Ferrule Female Bulkhead Union are available in both metric and imperial sizes. Various materials, material grades, and coatings/platings are available. We’ve got the right product for your engineering needs.

PDF Catalogue
Catalogue
Download the Stainless Steel Single Ferrule Female Bulkhead Union PDF

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

CALL 9821023876 SEND ENQUIRY
02 — Product Detail

Description of Stainless Steel Single Ferrule Female Bulkhead Union

Stainless Steel Single Ferrule Female Bulkhead Union is a high-performance precision component engineered to provide robust mechanical connection, vibration dampening, and leak-tight reliability across high-pressure single ferrule tubing networks.

Stainless Steel Single Ferrule Pipe Fittings are precision manufactured components used to connect, divert, or isolate flow in process lines and instrumentation systems. Featuring accurately contrived thread profiles and precision sealing cones, they ensure repeatable, leak-free joints.

Features Stainless Steel Single Ferrule Female Bulkhead Union:

  • Extreme conditions durability: Engineered to withstand high pressure, vibration, mechanical shock, vacuum, and temperature swings.
  • Compact & lightweight: Streamlined geometry, no special installation tools required, and low tightening torque.
  • Compression design: Easy assembly bite-type compression design, simple to connect, disconnect, and economical to remake.
  • Tubing compatibility: Fully compatible with annealed 304, 316, or 316L stainless steel tubing.
  • Precisely contrived threads: CNC-machined thread profiles ensure reliable, burr-free, and leak-free joints.
  • Leak-tight sealing: Provides dependable metal-to-metal sealing for high pressure, vacuum, liquid, and gas applications.
  • Zero tube twisting: Prevents torsional twisting of tubing during tightening, preserving tubing concentricity.
  • Single ferrule pressure seal: Precision cutting edge creates positive mechanical collet bite and reliable cone seal.
  • 4:1 safety factor: Engineered with a verified 4:1 safety factor relative to tubing working pressures.
+ + + +
Specification

Sizes: 1/8″ to 1″ having various connecting configurations in Metric sizes from 2 mm to 25 mm and Imperial sizes from 1/16″ to 1″. Material of Construction: Stainless Steel, SS 304, SS 316, SS 316L, Brass, Monel, Inconel. Materials conforming to NACE MR 01-75 are available on specific requests.

Technical Specifications & Dimensions

Stainless Steel Single Ferrule Female Bulkhead Union Dimensional Tables

Explore full engineering dimensional configurations for Metric (mm) and Imperial / Fractional (Inch) Stainless Steel Single Ferrule Female Bulkhead Union. Sourced and manufactured according to DIN 2353, ISO 8434-1, ASME B31.3, and international instrumentation standards.

Metric Stainless Steel Single Ferrule Female Bulkhead Union Dimensions (mm)
Standard Metric Range
Part No. Tube O.D.
T mm		 E
mm		 h mm h1 mm H mm F G l l1 L L1 Panel
Hole
DrillSize		 Max
Panel
Thickness
MPBU – 03 3 2.4 14 12.7 12 12.9 15.3 38.1 24.6 51.3 31.2 8.3 12.7
MPBU – 04 4 2.4 14 14.3 12 13.7 15.3 40.4 25.4 53.6 32.0 9.9 12.7
MPBU – 06 6 4.8 16 15.9 14 15.3 16.1 42.9 26.2 57.7 33.6 11.5 10.2
MPBU – 08 8 6.4 16 17.5 16 16.2 17.7 46.0 28.6 61.0 36.1 13.1 11.2
MPBU – 10 10 7.9 22 22.0 19 17.2 18.6 48.5 29.4 63.7 37.0 16.2 11.2
MPBU – 12 12 9.5 24 23.8 22 22.8 19.5 50.8 31.8 71.0 41.9 19.5 12.7
MPBU – 15 15 11.9 27 27.0 25 24.4 22.0 52.3 32.5 72.5 42.6 22.8 12.7
MPBU – 16 16 12.7 27 27.0 25 24.4 22.0 52.3 32.5 72.5 42.6 22.8 12.7
MPBU – 18 18 15.1 30 30.0 30 24.4 22.0 58.7 37.7 78.9 47.4 26.0 16.8
MPBU – 20 20 15.9 35 35.0 32 26.0 22.0 64.3 42.9 84.5 53.0 29.0 17.0
MPBU – 22 22 18.3 35 35.0 32 26.0 22.0 64.3 42.9 84.5 53.0 29.0 19.1
MPBU – 25 25 21.8 41.3 41.3 38 31.3 26.5 71.4 45.2 95.9 57.5 33.7 19.1
Imperial / Fractional Stainless Steel Single Ferrule Female Bulkhead Union Dimensions (Inch)
Standard Imperial Range
Part No. Tube O.D.
T in		 E
Min		 h in H in F G l l1 L L1 Panel
Hole
DrillSize		 Max
Panel
Thickness
IPBU-01 1/16 1.27 5/16 5/16 8.63 10.92 23.87 13.46 31.50 17.27 5.16 3.05
IPBU-02 1/8 2.28 1/2 7/16 12.70 15.24 38.10 24.63 51.30 31.24 8.33 12.70
IPBU-03 3/16 3.04 9/16 1/2 13.71 16.00 40.38 25.40 53.59 32.00 9.92 12.70
IPBU-04 1/4 4.82 5/8 9/16 15.24 17.78 42.92 26.16 57.65 33.52 11.50 10.16
IPBU-05 5/16 6.35 11/16 5/8 16.25 18.54 45.92 28.44 60.70 35.81 13.09 11.17
IPBU-06 3/8 7.11 3/4 11/16 16.76 19.30 47.49 29.46 62.23 36.83 14.65 11.17
IPBU-08 1/2 10.41 15/16 7/8 22.86 21.84 47.49 31.75 71.12 41.91 19.44 12.70
IPBU-10 5/8 12.70 1-1/16 1 24.38 21.84 50.80 32.51 72.64 42.67 22.62 12.70
IPBU-12 3/4 15.74 1-3/16 1-1/8 24.38 21.84 52.32 37.33 78.99 47.49 25.79 16.76
IPBU-14 7/8 18.28 1-3/8 1-1/4 25.90 21.84 58.67 42.92 84.58 53.08 28.97 19.05
IPBU-16 1 22.35 1-5/8 1-1/2 31.24 26.41 64.26 45.21 95.75 57.40 33.73 19.05
Material Grades, Mechanical Properties & Applicable Standards
ASTM / ASME / ISO Certified
Material Designation Standard Specification Yield Strength (MPa) Tensile Strength (MPa) Working Temperature Limits Primary Applications
SS 316 / 316L ASTM A276 / A479 / A182 ≥ 205 ≥ 515 -196°C to +426°C Standard marine, chemical & hydrocarbon process tubing
SS 304 / 304L ASTM A276 / A479 / A182 ≥ 205 ≥ 515 -196°C to +426°C General pneumatic, hydraulic & inert gas transmission lines
Duplex 2205 (UNS S31803 / S32205) ASTM A479 / A182 F51 ≥ 450 ≥ 620 -50°C to +280°C Offshore topsides, sea water piping, high-chloride environments
Super Duplex 2507 (UNS S32750) ASTM A479 / A182 F53 ≥ 550 ≥ 750 -50°C to +280°C Subsea manifolds, desalination plants, extreme pitting service
Alloy 400 / Monel (UNS N04400) ASTM B164 / ASME SB164 ≥ 170 ≥ 480 -196°C to +426°C Hydrofluoric acid alkylation, marine splash zones & brine loops
Hastelloy C-276 (UNS N10276) ASTM B574 / ASME SB574 ≥ 355 ≥ 790 -196°C to +648°C Wet chlorine, sour gas (H2S), aggressive hot mineral acids
Inconel 625 (UNS N06625) ASTM B446 / ASME SB446 ≥ 415 ≥ 827 -196°C to +648°C Aerospace propellants, flare systems & nuclear reactor piping
03 — Applications

Applications/Uses of Stainless Steel Single Ferrule Female Bulkhead Union

Stainless Steel Single Ferrule Female Bulkhead Union finds critical deployment across a wide range of mission-critical fluid systems:

01

Oil and gas –

Deploys in offshore drilling rigs, subsea manifolds, separation vessels, and topside hydraulic control loops requiring leak-tight integrity under high stress and corrosive H2S conditions.

02

Building and Construction –

Heavy hydraulic scaffolding, pre-stressing hydraulic jacks, and structural testing equipment require reliable single ferrule fittings to guarantee safety during construction.

03

Chemical refining –

In petrochemical and chemical plants, these fittings resist harsh acid lines, aromatic hydrocarbons, high temperature heat exchangers, and sensitive analyzer sampling loops.

04

Marine –

Installed on offshore supply vessels, naval craft, desalination plants, and marine cargo piping systems requiring exceptional resistance to continuous saltwater spray.

05

Automobile and transportation –

Utilized in heavy commercial vehicle fuel injection, alternative CNG/LNG delivery manifolds, locomotive air braking lines, and aerospace hydraulic test equipment.

06

Power generation –

Steam turbine lubrication lines, boiler feed water monitoring, condenser impulse lines, and nuclear cooling systems demanding high-pressure containment and zero maintenance downtime.

07

Agriculture –

Precision fertilizer injection, high-capacity agricultural spray rigs, automated hydraulic implement controls, and industrial field irrigation manifold connections.

08

Military & Defense –

Designed and precision-tested to withstand ballistic shocks, extreme temperature extremes, corrosive seawater, and severe vibration on naval combatants and mobile weapon platforms.

04 — Industries

Industries We Serve

Pioneer Industries’ Stainless Steel Single Ferrule Female Bulkhead Union are deployed across worldwide demanding industries including:

+ Pharmaceutical Equipment
+ Chemical Processing
+ Sea Water Desalination
+ Heat Exchangers
+ Surface Condensers
+ Pulp and Paper Mills
+ Thermal & Nuclear Power
+ Natural Gas Processing
+ Aerospace Fluid Skids
+ Nuclear Energy Systems
+ Off-Shore Exploration
+ Oil & Gas Refineries
+ Petrochemical Complexes
+ Cryogenic LNG Depots
+ Defense & Naval Marine
05 — Range

Types of Stainless Steel Single Ferrule Fittings offered by Pioneer Industries

06 — FAQ

Frequently Asked Questions – Stainless Steel Single Ferrule Female Bulkhead Union

Expert B2B technical guidance, metallurgy specifications, and installation practices for single ferrule tube systems.

The Stainless Steel Single Ferrule Female Bulkhead Union incorporates an extended external threaded shank, a precision locknut, and a heavy-duty washer engineered to penetrate control panels, instrument cabinets, and bulkhead barrier bulkheads up to 1/2" (12.7 mm) thick. It maintains full pressure-tight fluid containment while providing rigid mechanical anchoring that resists pipeline vibration, thermal expansion, and external side loads.
Pioneer's Stainless Steel Single Ferrule Female Bulkhead Union is rated for operating pressures up to 10,000 PSI (689 bar) depending on tubing outer diameter and wall thickness. In accordance with ASME B31.3 (Process Piping) and DIN 2353 / ISO 8434-1 standards, all fittings are designed with a minimum 4:1 safety factor against burst pressure, ensuring that properly annealed seamless stainless steel tubing will yield before the fitting experiences mechanical failure.
The Stainless Steel Single Ferrule Female Bulkhead Union complies with ASTM A276 / ASTM A479 for bar stock, ASTM A182 for forgings, and ASME B31.3 for process piping integrity. Threaded connections adhere strictly to ASME B1.20.1 for NPT taper threads and ISO 228 / ISO 7-1 for BSPP and BSPT threads. Metric sizes comply with DIN 2353 and ISO 8434-1 bite-type compression standards.
Yes. Pioneer supplies the Stainless Steel Single Ferrule Female Bulkhead Union in sour gas compliant metallurgy conforming to NACE MR0175 / ISO 15156 and NACE MR0103. The materials undergo strict solution annealing to maintain hardness below 22 HRC, guaranteeing exceptional resistance to sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) in demanding upstream offshore and refinery environments.
The single ferrule profile creates a controlled biting action combined with an elastic support tail that cushions high-frequency mechanical vibration and hydraulic pressure pulsations. This prevents stress concentration at the bite edge, preventing tube fatigue failure and fatigue notch cracking adjacent to compressor discharge headers, turbine fuel skids, and heavy offshore pumping stations.
To completely eliminate stainless-on-stainless thread galling under high torque, Pioneer applies a heavy-duty electrolytically deposited silver plating to the internal threads of mating nuts and utilizes precision-burnished contact shoulders. This provides self-lubricating boundary protection, reduces makeup torque by up to 40%, and ensures uniform axial thrust transmission without thread seizure.
Manufactured in standard Grade 316/316L stainless steel, the Stainless Steel Single Ferrule Female Bulkhead Union performs across temperature extremes from -196°C (-321°F) cryogenic LNG conditions up to +426°C (+800°F) high-temperature steam. For ultra-high temperature or severe oxidising applications up to +648°C (+1200°F), Pioneer manufactures custom units in Inconel 625, Hastelloy C-276, and Super Duplex 2507.
Ensure the tube end is cut square, deburred, and bottomed firmly against the internal shoulder of the fitting body. Tighten the nut finger-tight to establish the zero-datum baseline. For tube sizes 1/4" (6 mm) and larger, rotate the nut 1-1/4 turns with an open-end wrench while holding the body stationary. For miniature sizes 1/16", 1/8", 2 mm, and 3 mm, rotate the nut 3/4 turn. Verify initial makeup using Pioneer's go/no-go gap inspection gauge.
Yes, Pioneer single ferrule assemblies are engineered for repeated, reliable remakes. To reassemble: insert the swaged tubing with pre-set ferrule back into the fitting body until seated, tighten the nut finger-tight, and then advance the nut approximately 1/6 to 1/4 turn (one hex flat) with a wrench past snug. No additional ferrule bite occurs, preserving the pristine sealing face through dozens of maintenance cycles.
Every Stainless Steel Single Ferrule Female Bulkhead Union manufactured by Pioneer Industries is laser-marked with heat numbers, size, and material grade, and is supplied with complete EN 10204 3.1 Material Test Reports (MTR) detailing chemical composition and mechanical tensile tests. Factory testing includes 100% thread gauging, dimensional CMM verification, pneumatic gas decay testing, and optional helium mass spectrometer leak qualification (< 1 x 10⁻⁹ mbar·l/s). RFQs can specify fractional inch or metric sizes in standard or exotic alloys.
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!

Note: Please note that the information on this document is for illustration purposes only as information may vary with individual products, their grade and applications industries or uses and therefore cannot be guaranteed as accurate. © Copyright 2026 © Pioneer Industries All Rights Reserved (Terms of Use). Recreation of any materials from the site is strictly prohibited without permission. Pioneer Industries’ products are sold exclusively through Pioneer Industries’ website. Use Terms | Privacy. Please contact us to discuss precise product specifications and requirements and obtain advice on which products are required to suit your exact application needs inquiry@pioneerfitting.com