3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors
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3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors

3/4" BSP Brass Pipe Fittings – Straight, Elbow, Tee, Union & Reducer Connectors

HomeDIYer
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By HomeDIYer®

Price:
$13.10 USD
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In stock (500 units), ready to be shipped

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Description

3/4" BSP Brass Pipe Fittings — Reliable Threaded Connections for Plumbing, Water & Gas Lines

When a leaking joint or a missing connector brings your plumbing project to a halt, having the right fitting on hand makes all the difference. Whether you're a homeowner tackling a DIY repair, a plumber building out a new water supply line, or a contractor routing gas piping, these 3/4" BSP brass pipe fittings give you a complete toolkit of connection types in a single listing — no hunting across multiple SKUs.

Each variant is a single fitting sold individually, machined from solid brass with BSP (British Standard Pipe) threads at 3/4" (DN20) nominal size. The range covers 18 fitting configurations including straight connectors, 90° elbows, tees, 3-way and 4-way crosses, unions, plugs, caps, and reducer fittings that step down to 1/2" or up to 1". All fittings feature standard BSP thread forms compatible with G3/4 pipe systems. Sizes are expressed in nominal pipe diameter — the actual thread OD is typically around 26.4 mm (≈1.04").

These fittings are well suited for residential and commercial water supply lines, low-pressure gas distribution systems, and HVAC or compressed air plumbing where a durable, corrosion-resistant threaded connection is required. The union variant (10#) is especially useful for maintenance access points, while the 4-way cross (11#) simplifies manifold-style installations.

🔗 Thread Compatibility: These fittings use 3/4" BSP (G3/4 / DN20) threads. BSP threads are not directly interchangeable with NPT (National Pipe Thread) without an adapter. Verify your existing pipe thread standard before ordering.

✅ Key Features of These 3/4" BSP Brass Pipe Fittings

  • 🔩18 Fitting Configurations in One Listing — Straight, elbow, tee, 3-way, 4-way, union, plug, cap, and reducer variants let you source every connection type for your 3/4" BSP pipe run from a single product page.
  • 🟡Solid Brass Construction — Machined from brass alloy for natural corrosion resistance, good machinability, and long service life in water, air, and low-pressure gas applications — without the brittleness of cast iron or the cost of stainless.
  • 🔄Reducer Options for Size Transitions — Multiple reducer variants (bushing, elbow, straight, male/female combinations) make it straightforward to transition between 3/4" BSP and 1/2" or 1" pipe sizes within the same system.
  • 🛠️Standard BSP Thread Form — Conforms to BSP thread standards (G3/4), ensuring compatibility with the broad range of BSP-threaded valves, gauges, and pipe fittings used in plumbing and HVAC systems worldwide.
  • 🔒Leak-Free Threaded Assembly — The precision-cut threads seat firmly with PTFE tape or pipe dope, creating a secure, leak-resistant joint suitable for pressurized water and gas lines when properly installed.
  • 📦Individual Piece Pricing — Each variant is priced per fitting, so you buy exactly what you need — no forced bundle quantities. Ideal for repairs, replacements, or small-run installations where you need one or two specific connectors.

📐 Technical Specifications — 3/4" BSP Brass Pipe Fittings

Thread Standard BSP (British Standard Pipe) — G3/4 / DN20
Nominal Pipe Size 3/4" (DN20)
Thread OD (approx.) 26.4 mm (≈1.04")
Material Brass alloy
Finish Natural brass (uncoated)
Available Configurations 2-female straight, hexagonal 2-female straight, 2-male elbow, 2-female elbow, female-male elbow, male 3-way, female-male straight, union, female 4-way, male plug, female cap, reducer male (3/4" to 1"), reducer female (3/4" to 1"), female-to-male reducer straight, male-to-female reducer straight, bushing (3/4" to 1/2"), reducer elbow (3/4" to 1/2"), reducing 3-way (3/4" to 1/2")
Reducer Size Options 3/4" BSP to 1" BSP; 3/4" BSP to 1/2" BSP
Typical Working Pressure See variant options — contact us to confirm for your application
Sold As Individual fitting (1 piece per order)
Compatible Systems Water supply, low-pressure gas, HVAC, compressed air (verify local code)
NPT Compatibility Not directly compatible — BSP-to-NPT adapter required
⚠️ Confirm your thread standard before installing. BSP and NPT threads have different thread angles and pitches. Using mismatched threads can result in leaks or fitting damage. If unsure, measure your existing fitting or contact us.

❓ Frequently Asked Questions

How do I choose the right fitting type for my pipe run?

Match the fitting shape to your pipe layout: use a straight connector to extend a run, an elbow (90°) to change direction, a tee or 3-way to branch off, a 4-way cross for intersecting lines, a union for easy disconnect points, and a plug or cap to terminate an open end. Reducer fittings let you step down from 3/4" to 1/2" or up to 1" where needed.

What thread standard do these fittings use — BSP or NPT?

These fittings use BSP (British Standard Pipe) threads, specifically 3/4" BSP (also written as G3/4 or DN20). BSP threads are generally not directly compatible with NPT (National Pipe Thread) fittings without an adapter, as they differ in thread angle (55° BSP vs. 60° NPT) and pitch. Always verify your existing pipe thread standard before ordering.

Can these brass fittings be used outdoors or in corrosion-prone environments?

Brass is naturally resistant to corrosion and typically performs well in most indoor plumbing, water supply, and mild outdoor applications. For highly corrosive environments or direct saltwater exposure, additional protection or alternative materials may be advisable. Always confirm suitability with your local building code requirements.

What is the typical pressure rating for these fittings?

Brass pipe fittings of this type generally handle working pressures up to 150–200 PSI for water and general plumbing applications. Actual ratings depend on the specific fitting geometry, installation conditions, and the medium being conveyed. Contact us to confirm ratings for your specific use case before installation in high-pressure systems.

Are these fittings suitable for gas line installations?

Brass fittings are commonly used in low-pressure gas line applications. However, gas installations are subject to local codes and regulations. Always verify compliance with your local authority having jurisdiction (AHJ) and use a thread sealant rated for gas service (not standard PTFE tape, which may not be gas-rated in all jurisdictions).

Do I need PTFE tape or pipe dope to seal these fittings?

Yes. For a leak-free connection, apply PTFE (Teflon) tape or a suitable pipe thread sealant compound to the male threads before assembly. Wrap PTFE tape in the direction of the thread (clockwise when viewed from the end) for 2–3 wraps. This is standard practice for BSP threaded fittings in water and gas applications.

What is the difference between the reducer variants (options 14# through 20#)?

The reducer variants allow you to transition between pipe sizes within your system:

  • 14# & 15# — Step from 3/4" BSP to 1" BSP (male or female end)
  • 16# & 17# — Reducer straights combining male and female ends for 3/4"–1" transitions
  • 18# — Bushing reducer from 3/4" to 1/2" (compact, screws into a larger fitting)
  • 19# — Reducer elbow for a directional change while stepping down from 3/4" to 1/2"
  • 20# — Reducing 3-way tee for branching while transitioning from 3/4" to 1/2"

Choose based on your pipe sizes and the gender (male/female) of your existing connections.

🛒 Select your fitting type above, then add to cart — ships from our US warehouse.

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