Beduan 1/4
Pipe Fittings

Beduan 1/4" NPT Stainless Steel Female Bulkhead Coupler

The Beduan 1/4" NPT Stainless Steel Female Bulkhead Coupler is a reliable, high-quality solution for creating secure, leak-resistant connections through panels, tanks, or enclosures.

Key Features

  • Material: Premium 304 stainless steel, offering excellent corrosion resistance, strong ductility at high temperatures, and low magnetic permeability. Note The metal washer is not made of stainless steel.
  • Connecting Size Inner Thread 1 4 inch NPT female Outer Diameter 20 point 96 mm 1 2 inch BSP
  • Dimensions: Overall length 1 1/2 inch 38mm Thread length 1.3 inch 32.2mm Thread outside diameter 0.825 inch 20.96mm
  • Application: Female coupler designed to join NPT fittings through a bulkhead
  • Operating temperature range from minus 80 to 300 degrees Fahrenheit. Maximum working pressure 1500 PSI.

Product Description

The Beduan 1/4" NPT Stainless Steel Female Bulkhead Coupler is a reliable, high-quality solution for creating secure, leak-resistant connections through panels, tanks, or enclosures. Designed for demanding applications, this thru-bulk pipe fitting offers both durability and precision, making it ideal for industrial, commercial, and DIY fluid or air systems. Manufactured from premium 304 stainless steel, this bulkhead coupler delivers excellent corrosion resistance and maintains strength and ductility even at elevated temperatures. It is well-suited for use in harsh environments, including those exposed to moisture, chemicals, or outdoor conditions. The low magnetic permeability of 304 stainless steel makes it appropriate for applications where minimal magnetic interference is desired. Please note that the included metal washer is not stainless steel. The coupler features a 1/4" NPT female inner thread, providing a standard, secure connection interface compatible with a wide range of fittings, hoses, and components. Its full female thread design across the 1-1/2" body length allows for flexible installation options and dependable sealing. On the outside, the fitting has an outer diameter of 20.96 mm, equivalent to 1/2" BSP, ensuring a snug fit in appropriately sized mounting holes and bulkhead openings. This bulkhead coupler is easy to install and integrate into new or existing systems. It is commonly used in air compressors, pneumatic systems, hydraulic lines, water and coolant circuits, fuel systems, and various custom setups where a robust, pass-through female connection is needed. Whether you are building equipment, upgrading a system, or performing repairs, the Beduan 1/4" NPT Stainless Steel Female Bulkhead Coupler provides the strength, reliability, and performance you can trust from a precision-engineered stainless steel fitting.

Product Specifications

About This Product

Size 1/4“ NPT Female L (Full Threaded)
Material Stainless Steel
Brand Beduan
Color Silver
Item dimensions L x W x H 1 x 1 x 0.5 inches

Technical Details

Brand ‎Beduan
Color ‎Silver
Item dimensions L x W x H ‎1 x 1 x 0.5 inches
Connector Type ‎Coupling
Thread Size ‎0.25 inch
Exterior Finish ‎Stainless Steel
Thread Type ‎BSP
Item Weight ‎0.1 Kilograms
Number of Pieces 4
Manufacturer ‎Beduan
Set Name ‎No Set
Part Number ‎1zf-06158-bpc

Questions & Answers

It has a 1/4" NPT female thread on the inside and an outer diameter sized to fit a 1/2" BSP hole (approximately 20.96 mm).

The coupler is made from high quality 304 stainless steel, which offers good corrosion resistance and ductility at high temperatures.

No, the metal washer is not stainless steel. Only the coupler body is made from 304 stainless steel.

The overall length of the fitting is 1-1/2 inches (about 38 mm).

Yes, it is commonly used for both liquid and air lines, provided the rest of your system and seals are compatible with the media and pressure.

Yes, 304 stainless steel provides good corrosion resistance, making it suitable for most outdoor and mildly corrosive environments. For highly corrosive conditions, verify compatibility with your specific media.

You need a hole sized for a 1/2" BSP bulkhead (approximately 20.96 mm diameter) to pass the threaded body through and secure it with the included nut and washer.

Yes, it is a full female thread design, meaning the 1/4" NPT female threads run the full internal length of the fitting.

Yes, any standard 1/4" NPT male pipe or fitting can be threaded directly into the internal female port.

Yes, for a leak-free seal on the 1/4" NPT threads, use an appropriate thread sealant or PTFE tape according to your application requirements.

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