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BSPT Barrel Nipple | 316 SS | 150lb Class | 50 Bar | 1/8" to 6"

BSPT Barrel Nipple 316 Stainless Steel Threaded Pipe Fitting

Product Overview

Our BSPT Barrel Nipple provides a reliable and durable connection between pipe sections or fittings with female BSPT threads. Manufactured from high-quality 316/L stainless steel and conforming to BSEN 10241, this fitting ensures exceptional corrosion resistance and longevity, making it suitable for demanding plumbing, industrial, marine, and outdoor applications. With a maximum working pressure rating of up to 50 bar (temperature dependent), it offers dependable performance across a wide range of services including water, air, gas, steam, and compatible chemicals.

Available in sizes from 1/8" to 6" BSPT.

Key Features

Premium 316/L Stainless Steel: Offers superior corrosion resistance, especially against chlorides, suitable for marine and industrial use.
High Pressure Capability: Rated for a maximum working pressure of up to 50 bar (subject to temperature derating).
BSPT Thread Standard: Precision threads to ISO 7-1 standard ensure secure, leak-tight connections.
BSEN 10241 Standard: Manufactured according to recognised standards for steel threaded pipe fittings.
Versatile Application: Suitable for water, air, gas, steam, and various chemicals in indoor and outdoor installations.
Exceptional Durability: Designed for long-term service in demanding environments and temperature extremes.
Wide Size Range: Available in sizes from 1/8" up to 6" BSPT.

Product Specifications

Product Type: Barrel Nipple (Male x Male Threaded Connector)
Material: Stainless Steel Grade 316/L
Thread Type: BSPT Male Taper Threads (conforming to ISO 7-1)
Pressure Class: Typically associated with 150lb class fittings but rated higher
Maximum Working Pressure: Up to 50 bar (See Pressure-Temperature Rating)
Manufacturing Standard: Conforms to BSEN 10241
Temperature Range: -20°C to +220°C (Pressure restricted at higher temperatures)
Available Sizes: 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4", 5", 6"
Finish: Natural Stainless Steel

Common Applications

Plumbing Systems: Connecting pipe sections in commercial, industrial, and residential installations.
Industrial Piping: Suitable for fluid, gas, and steam transfer systems where corrosion resistance is needed.
Marine Environments: Excellent performance in saltwater and marine applications due to 316/L SS construction.
Food & Beverage Processing: Can be used where compatible with process fluids and hygiene standards.
Chemical Processing: Resistant to many corrosive chemicals (verify compatibility).
Outdoor & Exposed Installations: Weather-resistant properties ensure long-term reliability.

Compatible Products

For secure installation, use with:

Other 316 Stainless Steel BSPT Fittings (Sockets, Elbows, Tees etc.)
Appropriate PTFE Thread Seal Tape
Liquid Pipe Sealant (suitable for pressure and media)

Technical Dimensions

Technical Drawing of BSPT Barrel Nipple showing B (Length) and A (OD) dimensions

Dimensional Reference: B = Length (mm), A = Outer Diameter (mm)

Size (BSPT)	Length (B)	OD (A)	Weight (kg each)
1/8"	30mm	10.3	0.01
1/4"	30mm	13.7	0.03
3/8"	40mm	17.2	0.04
1/2"	60mm	21.3	0.07
3/4"	60mm	26.7	0.09
1"	60mm	33.4	0.14
1-1/4"	80mm	42.2	0.24
1-1/2"	80mm	48.3	0.28
2"	100mm	60.3	0.50
2-1/2"	100mm	76.1	0.64
3"	120mm	88.9	0.97
4"	120mm	114.3	1.43
5"	150mm	141.3	1.60
6"	150mm	168.3	3.25

Pressure-Temperature Rating

Temperature (°C)	No-Shock Maximum Working Pressure (Bar)
-20 to 40	50
100	50
150	35
200	25
220	20

Note 1: Pressure for intermediate temperatures may be determined by the interpolation method.

Note 2: Temperatures indicated are those of the internal fluid.

Note 3: Piping loads, stresses, and moments are not taken into account in these ratings.

Need Assistance?

Contact Air System Controls for technical support, specific size availability, bulk pricing, or queries regarding chemical compatibility.

Shipping Information

Stock Location: UK STOCK
Dispatch Time: Same working day for orders placed before 2pm (Monday - Friday)
Documentation: VAT Invoice supplied with all orders. Material certification may be available upon request.
Order Processing: Orders received before 2pm, Monday - Friday, are dispatched the same working day.
Packaging & Delivery: Items are packaged securely. If your order experiences delay or damage, please contact us for assistance.

Returns Policy

We aim for complete customer satisfaction. If you encounter any issues with your purchase, please contact us directly so we can resolve them.

Return Postage Costs:

Faulty or Defective Products: Return postage costs will be covered by us.
Other Returns (e.g., change of mind): The buyer is responsible for return postage costs.

Items can be returned within 14 days of the purchase date. We endeavour to resolve any issues within 1-2 working days.

About BSPT Barrel Nipples

Our BSPT barrel nipples provide secure, leak-tight connections in plumbing, industrial piping, and fluid transfer systems. These premium 316 stainless steel components are designed for use in environments where corrosion resistance, pressure handling capability (up to 50 bar), and long service life are essential requirements.

Fitting Features

Corrosion-resistant 316/L stainless steel construction for superior performance in harsh environments. Precision-cut BSPT threads to ISO7-1 standard ensure consistent and reliable connections. Available in multiple sizes from 1/8 inch to 6 inch to accommodate various system requirements. Suitable for potable water systems, food processing equipment, chemical transfer, and marine applications. These barrel nipples maintain their integrity even when exposed to temperature extremes, saltwater, and many corrosive chemicals.

Technical Details

Manufactured from high-quality 316/L stainless steel containing molybdenum for enhanced corrosion resistance, conforming to BSEN 10241. Maximum working pressure of 50 bar at ambient temperatures, with reduced pressure ratings at elevated temperatures (see P-T chart). Thread design follows ISO7-1 specifications for optimal sealing performance. Suitable for working temperatures from -20°C to +220°C depending on pressure requirements. Compatible with water, gas, steam, oil, and various chemical media.

Alternative Names & Search Terms

Also known as: threaded pipe nipple, stainless steel connector, 316 SS pipe joiner, double-ended pipe nipple, male-to-male pipe connector, tapered thread nipple, pipe extension fitting, close nipple, running nipple, joining nipple, connecting nipple, double male adapter, pipe section connector, SS316 barrel nipple, 150lb class fitting, 50 bar pipe nipple.

Comparable Brands & Types

This type of BSPT 316 stainless steel barrel nipple is a standard threaded fitting offered by various manufacturers and suppliers, including Stauff, Parker Hydraulics, Swagelok, Ham-Let, Bonney Forge, Klinger, Dixon Valve, Hy-Lok, SSP Fittings, Wade Fittings, Legris (Parker), and numerous general pipe fitting stockists like BSS, Flowtech, Wolseley in the UK market. Alternative thread types include NPT barrel nipples.

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BSPT Barrel Nipple - 316 Stainless Steel